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2097 lines
54 KiB
C
2097 lines
54 KiB
C
#include "stdafx.h"
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#include "ttd.h"
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#include "vehicle.h"
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#include "viewport.h"
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#include "command.h"
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#include "pathfind.h"
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#include "town.h"
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void ShowTrainDepotWindow(uint tile);
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enum { /* These values are bitmasks for the map5 byte */
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RAIL_TYPE_NORMAL = 0,
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RAIL_TYPE_SIGNALS = 0x40,
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RAIL_TYPE_SPECIAL = 0x80, // If this bit is set, then it's not a regular track.
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RAIL_TYPE_DEPOT = 0xC0,
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RAIL_TYPE_MASK = 0xC0,
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RAIL_BIT_DIAG1 = 1, // 0
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RAIL_BIT_DIAG2 = 2, // 1
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RAIL_BIT_UPPER = 4, // 2
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RAIL_BIT_LOWER = 8, // 3
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RAIL_BIT_LEFT = 16, // 4
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RAIL_BIT_RIGHT = 32, // 5
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RAIL_BIT_MASK = 0x3F,
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RAIL_DEPOT_TRACK_MASK = 1,
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RAIL_DEPOT_DIR = 3,
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RAIL_DEPOT_UNUSED_BITS = 0x3C,
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RAIL_TYPE_CHECKPOINT = 0xC4,
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RAIL_CHECKPOINT_TRACK_MASK = 1,
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RAIL_CHECKPOINT_UNUSED_BITS = 0x3E,
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};
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#define IS_RAIL_DEPOT(x) (((x) & (RAIL_TYPE_DEPOT|RAIL_DEPOT_UNUSED_BITS)) == RAIL_TYPE_DEPOT)
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#define IS_RAIL_CHECKPOINT(x) (((x) & (RAIL_TYPE_CHECKPOINT|RAIL_CHECKPOINT_UNUSED_BITS)) == RAIL_TYPE_CHECKPOINT)
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/* Format of rail map5 byte.
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* 00 abcdef => Normal rail
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* 01 abcdef => Rail with signals
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* 10 ?????? => Unused
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* 11 ????dd => Depot
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*
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* abcdef is a bitmask, which contains ones for all present tracks. Below the
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* value for each track is given.
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*/
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/* 4
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* ---------
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* |\ /|
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* | \ 1/ |
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* | \ / |
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* | \ / |
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* 16| \ |32
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* | / \2 |
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* | / \ |
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* | / \ |
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* |/ \|
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* ---------
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* 8
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*/
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// Constants for lower part of Map2 byte.
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enum RailMap2Lower4 {
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RAIL_MAP2LO_GROUND_MASK = 0xF,
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RAIL_GROUND_BROWN = 0,
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RAIL_GROUND_GREEN = 1,
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RAIL_GROUND_FENCE_NW = 2,
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RAIL_GROUND_FENCE_SE = 3,
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RAIL_GROUND_FENCE_SENW = 4,
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RAIL_GROUND_FENCE_NE = 5,
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RAIL_GROUND_FENCE_SW = 6,
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RAIL_GROUND_FENCE_NESW = 7,
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RAIL_GROUND_FENCE_VERT1 = 8,
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RAIL_GROUND_FENCE_VERT2 = 9,
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RAIL_GROUND_FENCE_HORIZ1 = 10,
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RAIL_GROUND_FENCE_HORIZ2 = 11,
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RAIL_GROUND_ICE_DESERT = 12,
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};
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/* MAP2 byte: abcd???? => Signal On? Same coding as map3lo
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* MAP3LO byte: abcd???? => Signal Exists?
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* a and b are for diagonals, upper and left,
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* one for each direction. (ie a == NE->SW, b ==
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* SW->NE, or v.v., I don't know. b and c are
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* similar for lower and right.
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* MAP2 byte: ????abcd => Type of ground.
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* MAP3LO byte: ????abcd => Type of rail.
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* MAP5: 00abcdef => rail
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* 01abcdef => rail w/ signals
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* 10uuuuuu => unused
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* 11uuuudd => rail depot
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*/
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static bool CheckTrackCombination(byte map5, byte trackbits, byte flags)
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{
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_error_message = STR_1001_IMPOSSIBLE_TRACK_COMBINATION;
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if ((map5&RAIL_TYPE_MASK) == RAIL_TYPE_SIGNALS) {
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if (map5 & trackbits) {
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_error_message = STR_1007_ALREADY_BUILT;
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return false;
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}
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map5 |= trackbits;
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return (map5 == (RAIL_TYPE_SIGNALS|RAIL_BIT_UPPER|RAIL_BIT_LOWER) || map5 == (RAIL_TYPE_SIGNALS|RAIL_BIT_LEFT|RAIL_BIT_RIGHT));
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} else if ((map5&RAIL_TYPE_MASK) == RAIL_TYPE_NORMAL) {
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_error_message = STR_1007_ALREADY_BUILT;
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if (map5 & trackbits)
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return false;
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// Computer players are not allowed to intersect pieces of rail.
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if (!(flags&DC_NO_RAIL_OVERLAP))
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return true;
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map5 |= trackbits;
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return (map5 == (RAIL_BIT_UPPER|RAIL_BIT_LOWER) || map5 == (RAIL_BIT_LEFT|RAIL_BIT_RIGHT));
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} else {
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return false;
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}
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}
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static const byte _valid_tileh_slopes[4][15] = {
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// set of normal ones
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{
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RAIL_BIT_DIAG1|RAIL_BIT_DIAG2|RAIL_BIT_UPPER|RAIL_BIT_LOWER|RAIL_BIT_LEFT|RAIL_BIT_RIGHT,
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RAIL_BIT_RIGHT,
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RAIL_BIT_UPPER,
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RAIL_BIT_DIAG1,
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RAIL_BIT_LEFT,
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0,
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RAIL_BIT_DIAG2,
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RAIL_BIT_LOWER,
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RAIL_BIT_LOWER,
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RAIL_BIT_DIAG2,
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0,
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RAIL_BIT_LEFT,
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RAIL_BIT_DIAG1,
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RAIL_BIT_UPPER,
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RAIL_BIT_RIGHT,
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},
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// allowed rail for an evenly raised platform
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{
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0,
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RAIL_BIT_LEFT,
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RAIL_BIT_LOWER,
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RAIL_BIT_DIAG2 | RAIL_BIT_LOWER | RAIL_BIT_LEFT,
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RAIL_BIT_RIGHT,
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RAIL_BIT_DIAG1|RAIL_BIT_DIAG2|RAIL_BIT_UPPER|RAIL_BIT_LOWER|RAIL_BIT_LEFT|RAIL_BIT_RIGHT,
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RAIL_BIT_DIAG1 | RAIL_BIT_LOWER | RAIL_BIT_RIGHT,
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RAIL_BIT_DIAG1|RAIL_BIT_DIAG2|RAIL_BIT_UPPER|RAIL_BIT_LOWER|RAIL_BIT_LEFT|RAIL_BIT_RIGHT,
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RAIL_BIT_UPPER,
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RAIL_BIT_DIAG1 | RAIL_BIT_UPPER | RAIL_BIT_LEFT,
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RAIL_BIT_DIAG1|RAIL_BIT_DIAG2|RAIL_BIT_UPPER|RAIL_BIT_LOWER|RAIL_BIT_LEFT|RAIL_BIT_RIGHT,
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RAIL_BIT_DIAG1|RAIL_BIT_DIAG2|RAIL_BIT_UPPER|RAIL_BIT_LOWER|RAIL_BIT_LEFT|RAIL_BIT_RIGHT,
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RAIL_BIT_DIAG2 | RAIL_BIT_UPPER | RAIL_BIT_RIGHT,
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RAIL_BIT_DIAG1|RAIL_BIT_DIAG2|RAIL_BIT_UPPER|RAIL_BIT_LOWER|RAIL_BIT_LEFT|RAIL_BIT_RIGHT,
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RAIL_BIT_DIAG1|RAIL_BIT_DIAG2|RAIL_BIT_UPPER|RAIL_BIT_LOWER|RAIL_BIT_LEFT|RAIL_BIT_RIGHT,
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},
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// allowed rail on coast tile
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{
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0,
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RAIL_BIT_LEFT,
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RAIL_BIT_LOWER,
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RAIL_BIT_DIAG2|RAIL_BIT_LEFT|RAIL_BIT_LOWER,
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RAIL_BIT_RIGHT,
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RAIL_BIT_DIAG1|RAIL_BIT_DIAG2|RAIL_BIT_UPPER|RAIL_BIT_LOWER|RAIL_BIT_LEFT|RAIL_BIT_RIGHT,
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RAIL_BIT_DIAG1|RAIL_BIT_RIGHT|RAIL_BIT_LOWER,
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RAIL_BIT_DIAG1|RAIL_BIT_DIAG2|RAIL_BIT_UPPER|RAIL_BIT_LOWER|RAIL_BIT_LEFT|RAIL_BIT_RIGHT,
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RAIL_BIT_UPPER,
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RAIL_BIT_DIAG1|RAIL_BIT_LEFT|RAIL_BIT_UPPER,
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RAIL_BIT_DIAG1|RAIL_BIT_DIAG2|RAIL_BIT_UPPER|RAIL_BIT_LOWER|RAIL_BIT_LEFT|RAIL_BIT_RIGHT,
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RAIL_BIT_DIAG1|RAIL_BIT_DIAG2|RAIL_BIT_UPPER|RAIL_BIT_LOWER|RAIL_BIT_LEFT|RAIL_BIT_RIGHT,
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RAIL_BIT_DIAG2|RAIL_BIT_RIGHT|RAIL_BIT_UPPER,
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RAIL_BIT_DIAG1|RAIL_BIT_DIAG2|RAIL_BIT_UPPER|RAIL_BIT_LOWER|RAIL_BIT_LEFT|RAIL_BIT_RIGHT,
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RAIL_BIT_DIAG1|RAIL_BIT_DIAG2|RAIL_BIT_UPPER|RAIL_BIT_LOWER|RAIL_BIT_LEFT|RAIL_BIT_RIGHT,
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},
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// valid railway crossings on slopes
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{
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1, 0, 0, // 0, 1, 2
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0, 0, 1, // 3, 4, 5
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0, 1, 0, // 6, 7, 8
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0, 1, 1, // 9, 10, 11
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0, 1, 1, // 12, 13, 14
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}
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};
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uint GetRailFoundation(uint tileh, uint bits)
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{
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int i;
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if ((~_valid_tileh_slopes[0][tileh] & bits) == 0)
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return 0;
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if ((~_valid_tileh_slopes[1][tileh] & bits) == 0)
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return tileh;
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if ( ((i=0, tileh == 1) || (i+=2, tileh == 2) || (i+=2, tileh == 4) || (i+=2, tileh == 8)) && (bits == RAIL_BIT_DIAG1 || (i++, bits == RAIL_BIT_DIAG2)))
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return i + 15;
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return 0;
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}
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//
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static uint32 CheckRailSlope(int tileh, uint rail_bits, uint existing, uint tile)
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{
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// never allow building on top of steep tiles
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if (!(tileh & 0x10)) {
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rail_bits |= existing;
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// don't allow building on the lower side of a coast
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if (IS_TILETYPE(tile, MP_WATER) && ~_valid_tileh_slopes[2][tileh] & rail_bits) {
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return_cmd_error(STR_3807_CAN_T_BUILD_ON_WATER);
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}
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// no special foundation
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if ((~_valid_tileh_slopes[0][tileh] & rail_bits) == 0)
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return 0;
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if (((~_valid_tileh_slopes[1][tileh] & rail_bits) == 0) || // whole tile is leveled up
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((rail_bits == RAIL_BIT_DIAG1 || rail_bits == RAIL_BIT_DIAG2) && (tileh == 1 || tileh == 2 || tileh == 4 || tileh == 8))) { // partly up
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return existing ? 0 : _price.terraform;
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}
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}
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return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION);
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}
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/* Build a single track.
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* p1 - railroad type normal/maglev
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* p2 - tile direction
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*/
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int32 CmdBuildSingleRail(int x, int y, uint32 flags, uint32 p1, uint32 p2)
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{
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TileInfo ti;
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int32 ret, cost = 0;
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byte rail_bit = 1 << p2;
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byte rail_type = (byte)(p1 & 0xF);
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uint tile;
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byte existing = 0;
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bool need_clear = false;
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SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
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_error_message = STR_1007_ALREADY_BUILT;
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FindLandscapeHeight(&ti, x, y);
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tile = ti.tile;
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// allow building rail under bridge
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if (ti.type != MP_TUNNELBRIDGE && !EnsureNoVehicle(tile))
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return CMD_ERROR;
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if (ti.type == MP_TUNNELBRIDGE) {
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/* BUILD ON BRIDGE CODE */
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if (!EnsureNoVehicleZ(tile, GET_TILEHEIGHT(tile)))
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return CMD_ERROR;
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if ((ti.map5 & 0xF8) == 0xC0) {
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if (ti.tileh & 0x10 || rail_bit != (byte)((ti.map5 & 1) ? 1 : 2)) goto need_clear;
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if (!(flags & DC_EXEC))
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return _price.build_rail;
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_map5[tile] = (ti.map5 & 0xC7) | 0x20;
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goto set_ownership;
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} else if ((ti.map5 & 0xF8) == 0xE0) {
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if ((_map3_lo[tile] & 0xF) != (int)p1) goto need_clear;
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if (rail_bit != (byte)((ti.map5 & 1) ? 1 : 2)) goto need_clear;
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return CMD_ERROR;
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} else
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goto need_clear;
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} else if (ti.type == MP_STREET) {
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byte m5;
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/* BUILD ON STREET CODE */
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if (ti.tileh & 0x10) // very steep tile
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return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION);
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if (!_valid_tileh_slopes[3][ti.tileh]) // prevent certain slopes
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return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION);
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if (!(ti.map5 & 0xF0)) {
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if ((ti.map5 & 0x0F) == 0xA) {
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if (rail_bit != 2) goto need_clear;
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m5 = 0x10;
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} else if ((ti.map5 & 0x0F) == 0x5) {
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if (rail_bit != 1) goto need_clear;
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m5 = 0x18;
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} else
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goto need_clear;
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if (!(flags & DC_EXEC))
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return _price.build_rail;
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ModifyTile(tile,
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MP_SETTYPE(MP_STREET) |
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MP_MAP3LO | MP_MAP3HI | MP_MAPOWNER_CURRENT | MP_MAP5,
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_map_owner[tile], /* map3_lo */
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p1, /* map3_hi */
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m5 /* map5 */
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);
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goto fix_signals;
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} else if (!(ti.map5 & 0xE0)) {
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if (rail_bit != (byte)((ti.map5 & 8) ? 1 : 2)) goto need_clear;
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return CMD_ERROR;
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} else
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goto need_clear;
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} else if (ti.type == MP_RAILWAY) {
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/* BUILD ON RAILWAY CODE */
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if (_map_owner[tile] != _current_player || (byte)(_map3_lo[tile]&0xF) != rail_type)
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goto need_clear;
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if (!CheckTrackCombination(ti.map5, rail_bit, (byte)flags))
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return CMD_ERROR;
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existing = ti.map5 & 0x3F;
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} else {
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/* DEFAULT BUILD ON CODE */
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need_clear:;
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/* isnot_railway */
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if (!(flags & DC_EXEC)) {
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ret = DoCommandByTile(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
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if (ret == CMD_ERROR) return CMD_ERROR;
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cost += ret;
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}
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need_clear = true;
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}
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ret = CheckRailSlope(ti.tileh, rail_bit, existing, tile);
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if (ret & 0x80000000)
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return ret;
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cost += ret;
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// the AI is not allowed to used foundationed tiles.
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if (ret && (!_patches.build_on_slopes || (!_patches.ainew_active && _is_ai_player)))
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return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION);
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if (flags & DC_EXEC && need_clear) {
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ret = DoCommandByTile(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
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if (ret == CMD_ERROR) return CMD_ERROR;
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cost += ret;
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}
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if (flags & DC_EXEC) {
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_map_type_and_height[tile] &= 0xF;
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_map_type_and_height[tile] |= MP_RAILWAY << 4;
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_map5[tile] |= rail_bit;
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_map2[tile] &= ~RAIL_MAP2LO_GROUND_MASK;
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// In case it's a tile without signals, clear the signal bits. Why?
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if ((_map5[tile] & RAIL_TYPE_MASK) != RAIL_TYPE_SIGNALS)
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_map2[tile] &= ~0xF0;
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set_ownership:
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_map_owner[tile] = _current_player;
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_map3_lo[tile] &= ~0xF;
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_map3_lo[tile] |= rail_type;
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MarkTileDirtyByTile(tile);
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|
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fix_signals:
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SetSignalsOnBothDir(tile, (byte)p2);
|
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}
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return cost + _price.build_rail;
|
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}
|
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|
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static const byte _signals_table[] = {
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0x40, 0x40, 0x40, 0x10, 0x80, 0x20, 0, 0, // direction 1
|
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0x80, 0x80, 0x80, 0x20, 0x40, 0x10, 0, 0 // direction 2
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};
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|
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static const byte _signals_table_other[] = {
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0x80, 0x80, 0x80, 0x20, 0x40, 0x10, 0, 0, // direction 1
|
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0x40, 0x40, 0x40, 0x10, 0x80, 0x20, 0, 0 // direction 2
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};
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|
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static const byte _signals_table_both[] = {
|
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0xC0, 0xC0, 0xC0, 0x30, 0xC0, 0x30, 0, 0, // both directions combined
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0xC0, 0xC0, 0xC0, 0x30, 0xC0, 0x30, 0, 0
|
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};
|
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|
|
|
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/* Remove a single track.
|
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* p1 - unused
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* p2 - tile direction
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*/
|
|
|
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int32 CmdRemoveSingleRail(int x, int y, uint32 flags, uint32 p1, uint32 p2)
|
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{
|
|
TileInfo ti;
|
|
byte rail_bit = 1 << p2;
|
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byte m5;
|
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uint tile;
|
|
|
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SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
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|
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FindLandscapeHeight(&ti, x, y);
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|
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tile = ti.tile;
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if (!((1<<ti.type) & ((1<<MP_TUNNELBRIDGE)|(1<<MP_STREET)|(1<<MP_RAILWAY))))
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return CMD_ERROR;
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|
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if (_current_player != OWNER_WATER && !CheckTileOwnership(tile))
|
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return CMD_ERROR;
|
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|
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// allow building rail under bridge
|
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if (ti.type != MP_TUNNELBRIDGE && !EnsureNoVehicle(tile))
|
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return CMD_ERROR;
|
|
|
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if (ti.type == MP_TUNNELBRIDGE) {
|
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if (!EnsureNoVehicleZ(tile, GET_TILEHEIGHT(tile)))
|
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return CMD_ERROR;
|
|
|
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if ((ti.map5 & 0xF8) != 0xE0)
|
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return CMD_ERROR;
|
|
|
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if ( ((ti.map5 & 1) ? 1 : 2) != rail_bit )
|
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return CMD_ERROR;
|
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|
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if (!(flags & DC_EXEC))
|
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return _price.remove_rail;
|
|
|
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_map_owner[tile] = OWNER_NONE;
|
|
_map5[tile] = ti.map5 & 0xC7;
|
|
} else if (ti.type == MP_STREET) {
|
|
if (!(ti.map5 & 0xF0))
|
|
return CMD_ERROR;
|
|
|
|
if (ti.map5 & 0xE0)
|
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return CMD_ERROR;
|
|
|
|
if (ti.map5 & 8) {
|
|
m5 = 5;
|
|
if (rail_bit != 1)
|
|
return CMD_ERROR;
|
|
} else {
|
|
m5 = 10;
|
|
if (rail_bit != 2)
|
|
return CMD_ERROR;
|
|
}
|
|
|
|
if (!(flags & DC_EXEC))
|
|
return _price.remove_rail;
|
|
|
|
_map5[tile] = m5;
|
|
_map_owner[tile] = _map3_lo[tile];
|
|
_map2[tile] = 0;
|
|
} else {
|
|
assert(ti.type == MP_RAILWAY);
|
|
|
|
if (ti.map5 & RAIL_TYPE_SPECIAL)
|
|
return CMD_ERROR;
|
|
|
|
if (!(ti.map5 & rail_bit))
|
|
return CMD_ERROR;
|
|
|
|
// don't allow remove if there are signals on the track
|
|
if (ti.map5 & RAIL_TYPE_SIGNALS) {
|
|
if (_map3_lo[tile] & _signals_table_both[p2])
|
|
return CMD_ERROR;
|
|
}
|
|
|
|
if (!(flags & DC_EXEC))
|
|
return _price.remove_rail;
|
|
|
|
if ( (_map5[tile] ^= rail_bit) == 0) {
|
|
DoClearSquare(tile);
|
|
goto skip_mark_dirty;
|
|
}
|
|
}
|
|
|
|
/* mark_dirty */
|
|
MarkTileDirtyByTile(tile);
|
|
|
|
skip_mark_dirty:;
|
|
|
|
SetSignalsOnBothDir(tile, (byte)p2);
|
|
|
|
return _price.remove_rail;
|
|
}
|
|
|
|
static const struct {
|
|
int8 xinc[16];
|
|
int8 yinc[16];
|
|
byte initial[16];
|
|
} _railbit = {{
|
|
// 0 1 2 3 4 5
|
|
16, 0,-16, 0, 16, 0, 0, 0,
|
|
-16, 0, 0, 16, 0,-16, 0, 0,
|
|
},{
|
|
0, 16, 0, 16, 0, 16, 0, 0,
|
|
0, -16, -16, 0,-16, 0, 0, 0,
|
|
},{
|
|
5, 1, 0,4, // normal
|
|
2, 1, 8,3, // x > sx
|
|
10, 9, 0,11, // y > sy
|
|
13, 9, 8,12, // x > sx && y > sy
|
|
}};
|
|
|
|
|
|
/* Build either NE or NW sequence of tracks.
|
|
* p1 0:15 - end pt X
|
|
* p1 16:31 - end pt y
|
|
*
|
|
* p2 0:3 - rail type
|
|
* p2 4:7 - rail direction
|
|
*/
|
|
|
|
|
|
int32 CmdBuildRailroadTrack(int x, int y, uint32 flags, uint32 p1, uint32 p2)
|
|
{
|
|
int sx, sy;
|
|
int32 ret, total_cost = 0;
|
|
int railbit;
|
|
|
|
if (flags & DC_EXEC)
|
|
SndPlayTileFx(0x1E, TILE_FROM_XY(x,y));
|
|
|
|
/* unpack end point */
|
|
sx = (p1 & 0xFFFF) & ~0xF;
|
|
sy = (p1 >> 16) & ~0xF;
|
|
|
|
railbit = _railbit.initial[(p2 >> 4) + (x > sx ? 4 : 0) + (y > sy ? 8 : 0)];
|
|
|
|
for(;;) {
|
|
ret = DoCommand(x, y, p2&0xF, railbit&7, flags, CMD_BUILD_SINGLE_RAIL);
|
|
|
|
if (ret == CMD_ERROR) {
|
|
if (_error_message != STR_1007_ALREADY_BUILT)
|
|
break;
|
|
} else
|
|
total_cost += ret;
|
|
|
|
if (x == sx && y == sy)
|
|
break;
|
|
|
|
x += _railbit.xinc[railbit];
|
|
y += _railbit.yinc[railbit];
|
|
|
|
// toggle railbit for the diagonal tiles
|
|
if (railbit & 0x6) railbit ^= 1;
|
|
}
|
|
|
|
if (total_cost == 0)
|
|
return CMD_ERROR;
|
|
|
|
return total_cost;
|
|
}
|
|
|
|
|
|
/* Remove either NE or NW sequence of tracks.
|
|
* p1 0:15 - start pt X
|
|
* p1 16:31 - start pt y
|
|
*
|
|
* p2 0:3 - rail type
|
|
* p2 4:7 - rail direction
|
|
*/
|
|
|
|
|
|
int32 CmdRemoveRailroadTrack(int x, int y, uint32 flags, uint32 p1, uint32 p2)
|
|
{
|
|
int sx, sy;
|
|
int32 ret, total_cost = 0;
|
|
int railbit;
|
|
|
|
if (flags & DC_EXEC)
|
|
SndPlayTileFx(0x1E, TILE_FROM_XY(x,y));
|
|
|
|
/* unpack start point */
|
|
sx = (p1 & 0xFFFF) & ~0xF;
|
|
sy = (p1 >> 16) & ~0xF;
|
|
|
|
railbit = _railbit.initial[(p2 >> 4) + (x > sx ? 4 : 0) + (y > sy ? 8 : 0)];
|
|
|
|
for(;;) {
|
|
ret = DoCommand(x, y, p2&0xF, railbit&7, flags, CMD_REMOVE_SINGLE_RAIL);
|
|
if (ret != CMD_ERROR) total_cost += ret;
|
|
if (x == sx && y == sy)
|
|
break;
|
|
x += _railbit.xinc[railbit];
|
|
y += _railbit.yinc[railbit];
|
|
// toggle railbit for the diagonal tiles
|
|
if (railbit & 0x6) railbit ^= 1;
|
|
}
|
|
|
|
if (total_cost == 0)
|
|
return CMD_ERROR;
|
|
|
|
return total_cost;
|
|
}
|
|
|
|
/* Build a train depot
|
|
* p1 = rail type
|
|
* p2 = depot direction
|
|
*/
|
|
int32 CmdBuildTrainDepot(int x, int y, uint32 flags, uint32 p1, uint32 p2)
|
|
{
|
|
uint tile = TILE_FROM_XY(x,y);
|
|
int32 cost, ret;
|
|
Depot *dep;
|
|
uint tileh;
|
|
|
|
SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
|
|
|
|
if (!EnsureNoVehicle(tile)) return CMD_ERROR;
|
|
|
|
tileh = GetTileSlope(tile, NULL);
|
|
if (tileh != 0) {
|
|
if ((!_patches.ainew_active && _is_ai_player) || !_patches.build_on_slopes || (tileh & 0x10 || !((0x4C >> p2) & tileh) ))
|
|
return_cmd_error(STR_0007_FLAT_LAND_REQUIRED);
|
|
}
|
|
|
|
ret = DoCommandByTile(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
|
|
if (ret == CMD_ERROR) return CMD_ERROR;
|
|
cost = ret;
|
|
|
|
dep = AllocateDepot();
|
|
if (dep == NULL)
|
|
return CMD_ERROR;
|
|
|
|
if (flags & DC_EXEC) {
|
|
if (_current_player == _local_player)
|
|
_last_built_train_depot_tile = (TileIndex)tile;
|
|
|
|
ModifyTile(tile,
|
|
MP_SETTYPE(MP_RAILWAY) |
|
|
MP_MAP3LO | MP_MAPOWNER_CURRENT | MP_MAP5,
|
|
p1, /* map3_lo */
|
|
p2 | RAIL_TYPE_DEPOT /* map5 */
|
|
);
|
|
|
|
dep->xy = tile;
|
|
dep->town_index = ClosestTownFromTile(tile, (uint)-1)->index;
|
|
|
|
SetSignalsOnBothDir(tile, (p2&1) ? 2 : 1);
|
|
|
|
}
|
|
|
|
return cost + _price.build_train_depot;
|
|
}
|
|
|
|
static void MakeDefaultCheckpointName(Checkpoint *cp)
|
|
{
|
|
int townidx = ClosestTownFromTile(cp->xy, (uint)-1)->index;
|
|
Checkpoint *cc;
|
|
bool used_checkpoint[64];
|
|
int i;
|
|
|
|
memset(used_checkpoint, 0, sizeof(used_checkpoint));
|
|
|
|
// find an unused checkpoint number belonging to this town
|
|
for(cc = _checkpoints; cc != endof(_checkpoints); cc++) {
|
|
if (cc->xy && cc->town_or_string & 0xC000 && (cc->town_or_string & 0xFF) == townidx)
|
|
used_checkpoint[(cc->town_or_string >> 8) & 0x3F] = true;
|
|
}
|
|
|
|
for(i=0; used_checkpoint[i] && i!=lengthof(used_checkpoint)-1; i++) {}
|
|
cp->town_or_string = 0xC000 + (i << 8) + townidx;
|
|
}
|
|
|
|
// find a deleted checkpoint close to a tile.
|
|
static Checkpoint *FindDeletedCheckpointCloseTo(uint tile)
|
|
{
|
|
Checkpoint *cp,*best = NULL;
|
|
uint thres = 8, cur_dist;
|
|
|
|
for(cp = _checkpoints; cp != endof(_checkpoints); cp++) {
|
|
if (cp->deleted && cp->xy) {
|
|
cur_dist = GetTileDist(tile, cp->xy);
|
|
if (cur_dist < thres) {
|
|
thres = cur_dist;
|
|
best = cp;
|
|
}
|
|
}
|
|
}
|
|
return best;
|
|
}
|
|
|
|
/* Convert existing rail to checkpoint */
|
|
|
|
int32 CmdBuildTrainCheckpoint(int x, int y, uint32 flags, uint32 p1, uint32 p2)
|
|
{
|
|
uint tile = TILE_FROM_XY(x,y);
|
|
Checkpoint *cp;
|
|
uint tileh;
|
|
uint dir;
|
|
|
|
SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
|
|
|
|
if (!IS_TILETYPE(tile, MP_RAILWAY) || ((dir=0, _map5[tile] != 1) && (dir=1, _map5[tile] != 2)))
|
|
return_cmd_error(STR_1005_NO_SUITABLE_RAILROAD_TRACK);
|
|
|
|
if (!CheckTileOwnership(tile))
|
|
return CMD_ERROR;
|
|
|
|
if (!EnsureNoVehicle(tile)) return CMD_ERROR;
|
|
|
|
tileh = GetTileSlope(tile, NULL);
|
|
if (tileh != 0) {
|
|
if (!_patches.build_on_slopes || tileh & 0x10 || !(tileh & (0x3 << dir)) || !(tileh & ~(0x3 << dir)))
|
|
return_cmd_error(STR_0007_FLAT_LAND_REQUIRED);
|
|
}
|
|
|
|
// check if there is an already existing, deleted, checkpoint close to us that we can reuse.
|
|
cp = FindDeletedCheckpointCloseTo(tile);
|
|
if (cp == NULL) {
|
|
cp = AllocateCheckpoint();
|
|
if (cp == NULL) return CMD_ERROR;
|
|
cp->town_or_string = 0;
|
|
}
|
|
|
|
if (flags & DC_EXEC) {
|
|
ModifyTile(tile, MP_MAP5, RAIL_TYPE_CHECKPOINT | dir);
|
|
|
|
cp->deleted = 0;
|
|
cp->xy = tile;
|
|
|
|
if (cp->town_or_string == 0) MakeDefaultCheckpointName(cp); else RedrawCheckpointSign(cp);
|
|
UpdateCheckpointSign(cp);
|
|
RedrawCheckpointSign(cp);
|
|
SetSignalsOnBothDir(tile, dir ? 2 : 1);
|
|
}
|
|
|
|
return _price.build_train_depot;
|
|
}
|
|
|
|
static void DoDeleteCheckpoint(Checkpoint *cp)
|
|
{
|
|
cp->xy = 0;
|
|
DeleteCommandFromVehicleSchedule(((cp-_checkpoints) << 8) + OT_GOTO_CHECKPOINT);
|
|
if (~cp->town_or_string & 0xC000) DeleteName(cp->town_or_string);
|
|
RedrawCheckpointSign(cp);
|
|
}
|
|
|
|
// delete checkpoints after a while
|
|
void CheckpointsDailyLoop()
|
|
{
|
|
Checkpoint *cp;
|
|
for(cp = _checkpoints; cp != endof(_checkpoints); cp++) {
|
|
if (cp->deleted && !--cp->deleted) {
|
|
DoDeleteCheckpoint(cp);
|
|
}
|
|
}
|
|
}
|
|
|
|
static int32 RemoveTrainCheckpoint(uint tile, uint32 flags, bool justremove)
|
|
{
|
|
Checkpoint *cp;
|
|
|
|
// make sure it's a checkpoint
|
|
if (!IS_TILETYPE(tile, MP_RAILWAY) || !IS_RAIL_CHECKPOINT(_map5[tile]))
|
|
return CMD_ERROR;
|
|
|
|
if (!CheckTileOwnership(tile) && !(_current_player==17))
|
|
return CMD_ERROR;
|
|
|
|
if (!EnsureNoVehicle(tile))
|
|
return CMD_ERROR;
|
|
|
|
if (flags & DC_EXEC) {
|
|
int direction = _map5[tile] & RAIL_CHECKPOINT_TRACK_MASK;
|
|
|
|
// mark the checkpoint deleted
|
|
for(cp=_checkpoints; cp->xy != (TileIndex)tile; cp++) {}
|
|
cp->deleted = 30; // let it live for this many days before we do the actual deletion.
|
|
RedrawCheckpointSign(cp);
|
|
|
|
if (justremove) {
|
|
ModifyTile(tile, MP_MAP5, 1<<direction);
|
|
} else {
|
|
DoClearSquare(tile);
|
|
SetSignalsOnBothDir(tile, direction);
|
|
}
|
|
}
|
|
|
|
return _price.remove_train_depot;
|
|
}
|
|
|
|
int32 CmdRemoveTrainCheckpoint(int x, int y, uint32 flags, uint32 p1, uint32 p2)
|
|
{
|
|
uint tile = TILE_FROM_XY(x,y);
|
|
return RemoveTrainCheckpoint(tile, flags, true);
|
|
}
|
|
|
|
|
|
// p1 = id of checkpoint
|
|
int32 CmdRenameCheckpoint(int x, int y, uint32 flags, uint32 p1, uint32 p2)
|
|
{
|
|
Checkpoint *cp;
|
|
StringID str;
|
|
|
|
if (_decode_parameters[0] != 0) {
|
|
str = AllocateName((byte*)_decode_parameters, 0);
|
|
if (str == 0) return CMD_ERROR;
|
|
|
|
if (flags & DC_EXEC) {
|
|
cp = &_checkpoints[p1];
|
|
if (~cp->town_or_string & 0xC000) DeleteName(cp->town_or_string);
|
|
cp->town_or_string = str;
|
|
UpdateCheckpointSign(cp);
|
|
MarkWholeScreenDirty();
|
|
} else {
|
|
DeleteName(str);
|
|
}
|
|
} else {
|
|
if (flags & DC_EXEC) {
|
|
cp = &_checkpoints[p1];
|
|
if (~cp->town_or_string & 0xC000) DeleteName(cp->town_or_string);
|
|
MakeDefaultCheckpointName(cp);
|
|
UpdateCheckpointSign(cp);
|
|
MarkWholeScreenDirty();
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
/* build signals, alternate between double/single, signal/semaphore, pre/exit/combo -signals
|
|
p1 = (lower 3 bytes) - track-orientation
|
|
p1 = (byte 4) - semaphores/signals
|
|
p2 = used for CmdBuildManySignals() to copy style first signal
|
|
*/
|
|
int32 CmdBuildSignals(int x, int y, uint32 flags, uint32 p1, uint32 p2)
|
|
{
|
|
uint tile;
|
|
byte m5;
|
|
int32 cost;
|
|
int track = p1 & 0x7;
|
|
|
|
assert(track >= 0 && track < 6); // only 6 possible track-combinations
|
|
|
|
SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
|
|
|
|
tile = TILE_FROM_XY(x,y);
|
|
|
|
if (!EnsureNoVehicle(tile))
|
|
return CMD_ERROR;
|
|
|
|
// must be railway, and not a depot, and it must have a track in the suggested position.
|
|
if (!IS_TILETYPE(tile, MP_RAILWAY) || (m5=_map5[tile], m5&0x80) || !HASBIT(m5, track))
|
|
return CMD_ERROR;
|
|
|
|
_error_message = STR_1005_NO_SUITABLE_RAILROAD_TRACK;
|
|
|
|
// check rail combination
|
|
{
|
|
byte m = m5 & RAIL_BIT_MASK;
|
|
if (m != RAIL_BIT_DIAG1 && m != RAIL_BIT_DIAG2 && m != RAIL_BIT_UPPER && m != RAIL_BIT_LOWER &&
|
|
m != RAIL_BIT_LEFT && m != RAIL_BIT_RIGHT && m != (RAIL_BIT_UPPER|RAIL_BIT_LOWER) && m != (RAIL_BIT_LEFT|RAIL_BIT_RIGHT))
|
|
return CMD_ERROR;
|
|
}
|
|
|
|
// check ownership
|
|
if (!CheckTileOwnership(tile))
|
|
return CMD_ERROR;
|
|
|
|
// If it had signals previously it is free to change orientation/pre-exit-combo signals
|
|
cost = 0;
|
|
if (!(m5 & RAIL_TYPE_SIGNALS)) {
|
|
cost = _price.build_signals;
|
|
// if converting signals<->semaphores, charge the player for it
|
|
} else if (p2 && ((HASBIT(p1, 3) && !HASBIT(_map3_hi[tile], 2)) || (!HASBIT(p1, 3) && HASBIT(_map3_hi[tile], 2)) ) ) {
|
|
cost += _price.build_signals + _price.remove_signals;
|
|
}
|
|
|
|
if (flags & DC_EXEC) {
|
|
|
|
|
|
if (!(m5 & RAIL_TYPE_SIGNALS)) { // if there are no signals yet present on the track
|
|
_map5[tile] |= RAIL_TYPE_SIGNALS; // change into signals
|
|
_map2[tile] |= 0xF0; // all signals are on
|
|
_map3_lo[tile] &= ~0xF0; // no signals built by default
|
|
_map3_hi[tile] = (p1 & 8) ? 4 : 0;// initial presignal state, semaphores depend on ctrl key
|
|
if (!p2)
|
|
goto ignore_presig;
|
|
}
|
|
|
|
if (!p2) { // not called from CmdBuildManySignals
|
|
if (!HASBIT(p1, 3)) { // not CTRL pressed
|
|
byte a,b,c,d;
|
|
ignore_presig:
|
|
a = _signals_table[track]; // signal for this track in one direction
|
|
b = _signals_table[track + 8]; // signal for this track in the other direction
|
|
c = a | b;
|
|
d = _map3_lo[tile] & c; // mask of built signals. it only affects &0xF0
|
|
|
|
// Alternate between a|b, b, a
|
|
if ( d != 0 && d != a) {
|
|
c = (d==c)?b:a;
|
|
}
|
|
|
|
_map3_lo[tile] = (_map3_lo[tile]&~(a|b)) | c;
|
|
} else // CTRL pressed
|
|
_map3_hi[tile] = (_map3_hi[tile] & ~3) | ((_map3_hi[tile] + 1) & 3);
|
|
} else {
|
|
/* If CmdBuildManySignals is called with copying signals, just copy the style of the first signal
|
|
* given as parameter by CmdBuildManySignals */
|
|
switch (track) {
|
|
case 2: case 4: _map3_lo[tile] = (p2&0xC0) | (_map3_lo[tile]&~0xC0); break;
|
|
case 3: case 5: _map3_lo[tile] = (p2&0x30) | (_map3_lo[tile]&~0x30); break;
|
|
default : _map3_lo[tile] = (p2&0xF0) | (_map3_lo[tile]&0xF);
|
|
}
|
|
// convert between signal<->semaphores when dragging
|
|
HASBIT(p1, 3) ? SETBIT(_map3_hi[tile], 2) : CLRBIT(_map3_hi[tile], 2);
|
|
}
|
|
|
|
MarkTileDirtyByTile(tile);
|
|
SetSignalsOnBothDir(tile, track);
|
|
}
|
|
|
|
return cost;
|
|
}
|
|
|
|
/* Build many signals by dragging: AutoSignals
|
|
x,y= start tile
|
|
p1 = end tile
|
|
p2 = (byte 0) - 0 = build, 1 = remove signals
|
|
p2 = (byte 3) - 0 = signals, 1 = semaphores
|
|
p2 = (byte 7-4) - track-orientation
|
|
p2 = (byte 8-) - track style
|
|
p2 = (byte 24-31) - user defined signals_density
|
|
*/
|
|
int32 CmdBuildManySignals(int x, int y, uint32 flags, uint32 p1, uint32 p2)
|
|
{
|
|
int ex, ey, railbit;
|
|
bool error = true;
|
|
TileIndex tile = TILE_FROM_XY(x, y);
|
|
int32 ret, total_cost, signal_ctr;
|
|
byte m5, semaphores = (HASBIT(p2, 3)) ? 8 : 0;
|
|
int mode = (p2 >> 4)&0xF;
|
|
// for vertical/horizontal tracks, double the given signals density
|
|
// since the original amount will be too dense (shorter tracks)
|
|
byte signal_density = (mode == 1 || mode == 2) ? (p2 >> 24) : (p2 >> 24) * 2;
|
|
byte signals = (p2 >> 8)&0xFF;
|
|
mode = p2 & 0x1; // build/remove signals
|
|
|
|
/* unpack end tile */
|
|
ex = GET_TILE_X(p1)*16;
|
|
ey = GET_TILE_Y(p1)*16;
|
|
|
|
railbit = _railbit.initial[((p2 >> 4)&0xF) + (x > ex ? 4 : 0) + (y > ey ? 8 : 0)];
|
|
|
|
// copy the signal-style of the first rail-piece if existing
|
|
m5 = _map5[tile];
|
|
if (!(m5 & RAIL_TYPE_SPECIAL) && (m5 & RAIL_BIT_MASK) && (m5 & RAIL_TYPE_SIGNALS)) {
|
|
if (m5 & 0x3) // X,Y direction tracks
|
|
signals = _map3_lo[tile]&0xC0;
|
|
else {
|
|
/* W-E or N-S direction, only copy the side which was chosen, leave
|
|
* the other side alone */
|
|
switch (signals) {
|
|
case 0x20: case 8: /* east corner (N-S), south corner (W-E) */
|
|
if (_map3_lo[tile]&0x30)
|
|
signals = _map3_lo[tile]&0x30;
|
|
else
|
|
signals = 0x30 | (_map3_lo[tile]&0xC0);
|
|
break;
|
|
case 0x10: case 4: /* west corner (N-S), north corner (W-E) */
|
|
if (_map3_lo[tile]&0xC0)
|
|
signals = _map3_lo[tile]&0xC0;
|
|
else
|
|
signals = 0xC0 | (_map3_lo[tile]&0x30);
|
|
break;
|
|
}
|
|
}
|
|
|
|
semaphores = (_map3_hi[tile] & ~3) ? 8 : 0; // copy signal/semaphores style (independent of CTRL)
|
|
} else { // no signals exist, drag a two-way signal stretch
|
|
switch (signals) {
|
|
case 0x20: case 8: /* east corner (N-S), south corner (W-E) */
|
|
signals = 0x30; break;
|
|
case 0x10: case 4: /* west corner (N-S), north corner (W-E) */
|
|
signals = 0xC0;
|
|
}
|
|
}
|
|
|
|
/* signal_density_ctr - amount of tiles already processed
|
|
* signals_density - patch setting to put signal on every Nth tile (double space on |, -- tracks)
|
|
**********
|
|
* railbit - direction of autorail
|
|
* semaphores - semaphores or signals
|
|
* signals - is there a signal/semaphore on the first tile, copy its style (two-way/single-way)
|
|
and convert all others to semaphore/signal
|
|
* mode - 1 remove signals, 0 build signals */
|
|
signal_ctr = total_cost = 0;
|
|
for(;;) {
|
|
// only build/remove signals with the specified density
|
|
if ((signal_ctr % signal_density) == 0 ) {
|
|
ret = DoCommand(x, y, (railbit & 7) | semaphores, signals, flags, (mode == 1) ? CMD_REMOVE_SIGNALS : CMD_BUILD_SIGNALS);
|
|
|
|
/* Abort placement for any other error then NOT_SUITEABLE_TRACK
|
|
* This includes vehicles on track, competitor's tracks, etc. */
|
|
if (ret == CMD_ERROR) {
|
|
if (_error_message != STR_1005_NO_SUITABLE_RAILROAD_TRACK && mode != 1) {
|
|
return CMD_ERROR;
|
|
}
|
|
} else {
|
|
error = false;
|
|
total_cost += ret;
|
|
}
|
|
}
|
|
|
|
if (ex == x && ey == y) // reached end of drag
|
|
break;
|
|
|
|
x += _railbit.xinc[railbit];
|
|
y += _railbit.yinc[railbit];
|
|
signal_ctr++;
|
|
|
|
// toggle railbit for the diagonal tiles (|, -- tracks)
|
|
if (railbit & 0x6) railbit ^= 1;
|
|
}
|
|
|
|
return (error) ? CMD_ERROR : total_cost;
|
|
}
|
|
|
|
/* Remove signals
|
|
* p1 = unused
|
|
* p2 = unused
|
|
*/
|
|
|
|
int32 CmdRemoveSignals(int x, int y, uint32 flags, uint32 p1, uint32 p2)
|
|
{
|
|
TileInfo ti;
|
|
uint tile;
|
|
|
|
SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
|
|
|
|
FindLandscapeHeight(&ti, x, y);
|
|
tile = ti.tile;
|
|
|
|
/* No vehicle behind. */
|
|
if (!EnsureNoVehicle(tile))
|
|
return CMD_ERROR;
|
|
|
|
/* Signals can only exist on railways */
|
|
if (ti.type != MP_RAILWAY)
|
|
return CMD_ERROR;
|
|
|
|
/* Map5 mode is 0x40 when there's signals */
|
|
if ((ti.map5 & RAIL_TYPE_MASK) != RAIL_TYPE_SIGNALS)
|
|
return CMD_ERROR;
|
|
|
|
/* Who owns the tile? */
|
|
if (_current_player != OWNER_WATER && !CheckTileOwnership(tile))
|
|
return CMD_ERROR;
|
|
|
|
/* Do it? */
|
|
if (flags & DC_EXEC) {
|
|
byte bits = _map5[tile];
|
|
_map5[tile] &= ~RAIL_TYPE_SIGNALS;
|
|
_map2[tile] &= ~0xF0;
|
|
CLRBIT(_map3_hi[tile], 2); // remove any possible semaphores
|
|
|
|
/* TTDBUG: this code contains a bug, if a tile contains 2 signals
|
|
* on separate tracks, it won't work properly for the 2nd track */
|
|
SetSignalsOnBothDir(tile, FIND_FIRST_BIT(bits & RAIL_BIT_MASK));
|
|
|
|
MarkTileDirtyByTile(tile);
|
|
}
|
|
|
|
return _price.remove_signals;
|
|
}
|
|
|
|
typedef int32 DoConvertRailProc(uint tile, uint totype, bool exec);
|
|
|
|
static int32 DoConvertRail(uint tile, uint totype, bool exec)
|
|
{
|
|
if (!CheckTileOwnership(tile) || !EnsureNoVehicle(tile))
|
|
return CMD_ERROR;
|
|
|
|
// tile is already of requested type?
|
|
if ( (uint)(_map3_lo[tile] & 0xF) == totype)
|
|
return CMD_ERROR;
|
|
|
|
// change type.
|
|
if (exec) {
|
|
_map3_lo[tile] = (_map3_lo[tile] & 0xF0) + totype;
|
|
MarkTileDirtyByTile(tile);
|
|
}
|
|
|
|
return _price.build_rail >> 1;
|
|
}
|
|
|
|
extern int32 DoConvertStationRail(uint tile, uint totype, bool exec);
|
|
extern int32 DoConvertStreetRail(uint tile, uint totype, bool exec);
|
|
extern int32 DoConvertTunnelBridgeRail(uint tile, uint totype, bool exec);
|
|
|
|
// p1 = start tile
|
|
// p2 = new railtype
|
|
int32 CmdConvertRail(int ex, int ey, uint32 flags, uint32 p1, uint32 p2)
|
|
{
|
|
int32 ret, cost, money;
|
|
int sx,sy,x,y;
|
|
|
|
// make sure sx,sy are smaller than ex,ey
|
|
sx = GET_TILE_X(p1)*16;
|
|
sy = GET_TILE_Y(p1)*16;
|
|
if (ex < sx) intswap(ex, sx);
|
|
if (ey < sy) intswap(ey, sy);
|
|
|
|
money = GetAvailableMoneyForCommand();
|
|
ret = false;
|
|
cost = 0;
|
|
for(x=sx; x<=ex; x+=16) {
|
|
for(y=sy; y<=ey; y+=16) {
|
|
uint tile = TILE_FROM_XY(x,y);
|
|
DoConvertRailProc *p;
|
|
|
|
if (IS_TILETYPE(tile, MP_RAILWAY)) p = DoConvertRail;
|
|
else if (IS_TILETYPE(tile, MP_STATION)) p = DoConvertStationRail;
|
|
else if (IS_TILETYPE(tile, MP_STREET)) p = DoConvertStreetRail;
|
|
else if (IS_TILETYPE(tile, MP_TUNNELBRIDGE)) p = DoConvertTunnelBridgeRail;
|
|
else continue;
|
|
|
|
ret = p(tile, p2, false);
|
|
if (ret == CMD_ERROR) continue;
|
|
cost += ret;
|
|
|
|
if (flags & DC_EXEC) {
|
|
if ( (money -= ret) < 0) { _additional_cash_required = ret; return cost - ret; }
|
|
p(tile, p2, true);
|
|
}
|
|
}
|
|
}
|
|
if (cost == 0) cost = CMD_ERROR;
|
|
return cost;
|
|
}
|
|
|
|
static int32 RemoveTrainDepot(uint tile, uint32 flags)
|
|
{
|
|
if (!CheckTileOwnership(tile) && _current_player != OWNER_WATER)
|
|
return CMD_ERROR;
|
|
|
|
if (!EnsureNoVehicle(tile))
|
|
return CMD_ERROR;
|
|
|
|
if (flags & DC_EXEC) {
|
|
int track = _map5[tile] & RAIL_DEPOT_TRACK_MASK;
|
|
|
|
DoDeleteDepot(tile);
|
|
SetSignalsOnBothDir(tile, track);
|
|
}
|
|
|
|
return _price.remove_train_depot;
|
|
}
|
|
|
|
static int32 ClearTile_Track(uint tile, byte flags) {
|
|
int32 cost,ret;
|
|
int i;
|
|
byte m5;
|
|
|
|
m5 = _map5[tile];
|
|
|
|
if (flags & DC_AUTO) {
|
|
if (m5 & RAIL_TYPE_SPECIAL)
|
|
return_cmd_error(STR_2004_BUILDING_MUST_BE_DEMOLISHED);
|
|
|
|
if (_map_owner[tile] != _current_player)
|
|
return_cmd_error(STR_1024_AREA_IS_OWNED_BY_ANOTHER);
|
|
|
|
return_cmd_error(STR_1008_MUST_REMOVE_RAILROAD_TRACK);
|
|
}
|
|
|
|
cost = 0;
|
|
|
|
|
|
if ( (m5 & RAIL_TYPE_MASK) == RAIL_TYPE_NORMAL) {
|
|
regular_track:;
|
|
for(i=0; m5; i++, m5>>=1) {
|
|
if (m5 & 1) {
|
|
ret = DoCommandByTile(tile, 0, i, flags, CMD_REMOVE_SINGLE_RAIL);
|
|
if (ret == CMD_ERROR)
|
|
return CMD_ERROR;
|
|
cost += ret;
|
|
}
|
|
}
|
|
return cost;
|
|
|
|
} else if ((m5 & RAIL_TYPE_MASK)==RAIL_TYPE_SIGNALS) {
|
|
cost = DoCommandByTile(tile, 0, 0, flags, CMD_REMOVE_SIGNALS);
|
|
if (cost == CMD_ERROR)
|
|
return CMD_ERROR;
|
|
m5 &= RAIL_BIT_MASK;
|
|
if (flags & DC_EXEC)
|
|
goto regular_track;
|
|
return cost + _price.remove_rail;
|
|
} else if ( (m5 & (RAIL_TYPE_MASK|RAIL_DEPOT_UNUSED_BITS)) == RAIL_TYPE_DEPOT) {
|
|
return RemoveTrainDepot(tile, flags);
|
|
} else if ( (m5 & (RAIL_TYPE_MASK|RAIL_CHECKPOINT_UNUSED_BITS)) == RAIL_TYPE_CHECKPOINT) {
|
|
return RemoveTrainCheckpoint(tile, flags, false);
|
|
} else
|
|
return CMD_ERROR;
|
|
}
|
|
|
|
|
|
|
|
typedef struct DrawTrackSeqStruct {
|
|
uint16 image;
|
|
byte subcoord_x;
|
|
byte subcoord_y;
|
|
byte width;
|
|
byte height;
|
|
} DrawTrackSeqStruct;
|
|
|
|
#include "table/track_land.h"
|
|
|
|
// used for presignals
|
|
static const SpriteID _signal_base_sprites[16] = {
|
|
0x4FB,
|
|
0x1323,
|
|
0x1333,
|
|
0x1343,
|
|
|
|
// use semaphores instead of signals?
|
|
0x1353,
|
|
0x1363,
|
|
0x1373,
|
|
0x1383,
|
|
|
|
// mirrored versions
|
|
0x4FB,
|
|
0x1323,
|
|
0x1333,
|
|
0x1343,
|
|
|
|
0x13C6,
|
|
0x13D6,
|
|
0x13E6,
|
|
0x13F6,
|
|
};
|
|
|
|
// used to determine the side of the road for the signal
|
|
static const byte _signal_position[24] = {
|
|
/* original: left side position */
|
|
0x58,0x1E,0xE1,0xB9,0x01,0xA3,0x4B,0xEE,0x3B,0xD4,0x43,0xBD,
|
|
/* patch: ride side position */
|
|
0x1E,0xAC,0x64,0xE1,0x4A,0x10,0xEE,0xC5,0xDB,0x34,0x4D,0xB3
|
|
};
|
|
|
|
static void DrawSignalHelper(TileInfo *ti, byte condition, uint32 image_and_pos)
|
|
{
|
|
bool otherside = _opt.road_side & _patches.signal_side;
|
|
|
|
uint v = _signal_position[(image_and_pos & 0xF) + (otherside ? 12 : 0)];
|
|
uint x = ti->x | (v&0xF);
|
|
uint y = ti->y | (v>>4);
|
|
uint sprite = _signal_base_sprites[(_map3_hi[ti->tile] & 7) + (otherside ? 8 : 0)] + (image_and_pos>>4) + ((condition != 0) ? 1 : 0);
|
|
AddSortableSpriteToDraw(sprite, x, y, 1, 1, 10, GetSlopeZ(x,y));
|
|
}
|
|
|
|
static uint32 _drawtile_track_palette;
|
|
|
|
|
|
static void DrawTrackFence_NW(TileInfo *ti)
|
|
{
|
|
uint32 image = 0x515;
|
|
if (ti->tileh != 0) {
|
|
image = 0x519;
|
|
if (!(ti->tileh & 2)) {
|
|
image = 0x51B;
|
|
}
|
|
}
|
|
AddSortableSpriteToDraw(image | _drawtile_track_palette,
|
|
ti->x, ti->y+1, 16, 1, 4, ti->z);
|
|
}
|
|
|
|
static void DrawTrackFence_SE(TileInfo *ti)
|
|
{
|
|
uint32 image = 0x515;
|
|
if (ti->tileh != 0) {
|
|
image = 0x519;
|
|
if (!(ti->tileh & 2)) {
|
|
image = 0x51B;
|
|
}
|
|
}
|
|
AddSortableSpriteToDraw(image | _drawtile_track_palette,
|
|
ti->x, ti->y+15, 16, 1, 4, ti->z);
|
|
}
|
|
|
|
static void DrawTrackFence_NW_SE(TileInfo *ti)
|
|
{
|
|
DrawTrackFence_NW(ti);
|
|
DrawTrackFence_SE(ti);
|
|
}
|
|
|
|
static void DrawTrackFence_NE(TileInfo *ti)
|
|
{
|
|
uint32 image = 0x516;
|
|
if (ti->tileh != 0) {
|
|
image = 0x51A;
|
|
if (!(ti->tileh & 2)) {
|
|
image = 0x51C;
|
|
}
|
|
}
|
|
AddSortableSpriteToDraw(image | _drawtile_track_palette,
|
|
ti->x+1, ti->y, 1, 16, 4, ti->z);
|
|
}
|
|
|
|
static void DrawTrackFence_SW(TileInfo *ti)
|
|
{
|
|
uint32 image = 0x516;
|
|
if (ti->tileh != 0) {
|
|
image = 0x51A;
|
|
if (!(ti->tileh & 2)) {
|
|
image = 0x51C;
|
|
}
|
|
}
|
|
AddSortableSpriteToDraw(image | _drawtile_track_palette,
|
|
ti->x+15, ti->y, 1, 16, 4, ti->z);
|
|
}
|
|
|
|
static void DrawTrackFence_NE_SW(TileInfo *ti)
|
|
{
|
|
DrawTrackFence_NE(ti);
|
|
DrawTrackFence_SW(ti);
|
|
}
|
|
|
|
static void DrawTrackFence_NS_1(TileInfo *ti)
|
|
{
|
|
int z = ti->z;
|
|
if (ti->tileh & 1)
|
|
z += 8;
|
|
AddSortableSpriteToDraw(0x517 | _drawtile_track_palette,
|
|
ti->x + 8, ti->y + 8, 1, 1, 4, z);
|
|
}
|
|
|
|
static void DrawTrackFence_NS_2(TileInfo *ti)
|
|
{
|
|
int z = ti->z;
|
|
if (ti->tileh & 4)
|
|
z += 8;
|
|
AddSortableSpriteToDraw(0x517 | _drawtile_track_palette,
|
|
ti->x + 8, ti->y + 8, 1, 1, 4, z);
|
|
}
|
|
|
|
static void DrawTrackFence_WE_1(TileInfo *ti)
|
|
{
|
|
int z = ti->z;
|
|
if (ti->tileh & 8)
|
|
z += 8;
|
|
AddSortableSpriteToDraw(0x518 | _drawtile_track_palette,
|
|
ti->x + 8, ti->y + 8, 1, 1, 4, z);
|
|
}
|
|
|
|
static void DrawTrackFence_WE_2(TileInfo *ti)
|
|
{
|
|
int z = ti->z;
|
|
if (ti->tileh & 2)
|
|
z += 8;
|
|
AddSortableSpriteToDraw(0x518 | _drawtile_track_palette,
|
|
ti->x + 8, ti->y + 8, 1, 1, 4, z);
|
|
}
|
|
|
|
static void DetTrackDrawProc_Null(TileInfo *ti)
|
|
{
|
|
/* nothing should be here */
|
|
}
|
|
|
|
typedef void DetailedTrackProc(TileInfo *ti);
|
|
DetailedTrackProc * const _detailed_track_proc[16] = {
|
|
DetTrackDrawProc_Null,
|
|
DetTrackDrawProc_Null,
|
|
|
|
DrawTrackFence_NW,
|
|
DrawTrackFence_SE,
|
|
DrawTrackFence_NW_SE,
|
|
|
|
DrawTrackFence_NE,
|
|
DrawTrackFence_SW,
|
|
DrawTrackFence_NE_SW,
|
|
|
|
DrawTrackFence_NS_1,
|
|
DrawTrackFence_NS_2,
|
|
|
|
DrawTrackFence_WE_1,
|
|
DrawTrackFence_WE_2,
|
|
|
|
DetTrackDrawProc_Null,
|
|
DetTrackDrawProc_Null,
|
|
DetTrackDrawProc_Null,
|
|
DetTrackDrawProc_Null,
|
|
};
|
|
|
|
static void DrawTile_Track(TileInfo *ti)
|
|
{
|
|
uint32 tracktype_offs, image;
|
|
byte m5;
|
|
|
|
_drawtile_track_palette = SPRITE_PALETTE(PLAYER_SPRITE_COLOR(_map_owner[ti->tile]));
|
|
|
|
tracktype_offs = (_map3_lo[ti->tile] & 0xF) * TRACKTYPE_SPRITE_PITCH;
|
|
|
|
m5 = (byte)ti->map5;
|
|
if (!(m5 & RAIL_TYPE_SPECIAL)) {
|
|
bool special;
|
|
|
|
m5 &= RAIL_BIT_MASK;
|
|
|
|
special = false;
|
|
|
|
// select the sprite to use based on the map5 byte.
|
|
(image = 0x3F3, m5 == RAIL_BIT_DIAG2) ||
|
|
(image++, m5 == RAIL_BIT_DIAG1) ||
|
|
(image++, m5 == RAIL_BIT_UPPER) ||
|
|
(image++, m5 == RAIL_BIT_LOWER) ||
|
|
(image++, m5 == RAIL_BIT_RIGHT) ||
|
|
(image++, m5 == RAIL_BIT_LEFT) ||
|
|
(image++, m5 == (RAIL_BIT_DIAG1|RAIL_BIT_DIAG2)) ||
|
|
|
|
(image = 0x40B, m5 == (RAIL_BIT_UPPER|RAIL_BIT_LOWER)) ||
|
|
(image++, m5 == (RAIL_BIT_LEFT|RAIL_BIT_RIGHT)) ||
|
|
|
|
(special=true, false) ||
|
|
|
|
(image = 0x3FA, !(m5 & (RAIL_BIT_RIGHT|RAIL_BIT_UPPER|RAIL_BIT_DIAG1))) ||
|
|
(image++, !(m5 & (RAIL_BIT_LEFT|RAIL_BIT_LOWER|RAIL_BIT_DIAG1))) ||
|
|
(image++, !(m5 & (RAIL_BIT_LEFT|RAIL_BIT_UPPER|RAIL_BIT_DIAG2))) ||
|
|
(image++, !(m5 & (RAIL_BIT_RIGHT|RAIL_BIT_LOWER|RAIL_BIT_DIAG2))) ||
|
|
(image++, true);
|
|
|
|
if (ti->tileh != 0) {
|
|
int f = GetRailFoundation(ti->tileh, ti->map5 & 0x3F);
|
|
if (f) DrawFoundation(ti, f);
|
|
|
|
// default sloped sprites..
|
|
if (ti->tileh != 0) image = _track_sloped_sprites[ti->tileh - 1] + 0x3F3;
|
|
}
|
|
|
|
if ((_map2[ti->tile] & RAIL_MAP2LO_GROUND_MASK)==RAIL_GROUND_BROWN)
|
|
image = (image & 0xFFFF) | 0x3178000; // use a brown palette
|
|
else if ((_map2[ti->tile] & RAIL_MAP2LO_GROUND_MASK)==RAIL_GROUND_ICE_DESERT)
|
|
image += 26;
|
|
|
|
DrawGroundSprite(image + tracktype_offs);
|
|
|
|
if (special) {
|
|
if (m5 & RAIL_BIT_DIAG1) DrawGroundSprite(0x3ED + tracktype_offs);
|
|
if (m5 & RAIL_BIT_DIAG2) DrawGroundSprite(0x3EE + tracktype_offs);
|
|
if (m5 & RAIL_BIT_UPPER) DrawGroundSprite(0x3EF + tracktype_offs);
|
|
if (m5 & RAIL_BIT_LOWER) DrawGroundSprite(0x3F0 + tracktype_offs);
|
|
if (m5 & RAIL_BIT_LEFT) DrawGroundSprite(0x3F2 + tracktype_offs);
|
|
if (m5 & RAIL_BIT_RIGHT) DrawGroundSprite(0x3F1 + tracktype_offs);
|
|
}
|
|
|
|
if (_display_opt & DO_FULL_DETAIL) {
|
|
_detailed_track_proc[_map2[ti->tile] & RAIL_MAP2LO_GROUND_MASK](ti);
|
|
}
|
|
|
|
/* draw signals also? */
|
|
if (!(ti->map5 & RAIL_TYPE_SIGNALS))
|
|
return;
|
|
|
|
{
|
|
byte m23;
|
|
|
|
m23 = (_map3_lo[ti->tile] >> 4) | (_map2[ti->tile] & 0xF0);
|
|
|
|
#define HAS_SIGNAL(x) (m23 & (byte)(0x1 << (x)))
|
|
#define ISON_SIGNAL(x) (m23 & (byte)(0x10 << (x)))
|
|
#define MAYBE_DRAW_SIGNAL(x,y,z) if (HAS_SIGNAL(x)) DrawSignalHelper(ti, ISON_SIGNAL(x), ((y-0x4FB) << 4)|(z))
|
|
|
|
if (!(m5 & RAIL_BIT_DIAG2)) {
|
|
if (!(m5 & RAIL_BIT_DIAG1)) {
|
|
if (m5 & RAIL_BIT_LEFT) {
|
|
MAYBE_DRAW_SIGNAL(2, 0x509, 0);
|
|
MAYBE_DRAW_SIGNAL(3, 0x507, 1);
|
|
}
|
|
if (m5 & RAIL_BIT_RIGHT) {
|
|
MAYBE_DRAW_SIGNAL(0, 0x509, 2);
|
|
MAYBE_DRAW_SIGNAL(1, 0x507, 3);
|
|
}
|
|
if (m5 & RAIL_BIT_UPPER) {
|
|
MAYBE_DRAW_SIGNAL(3, 0x505, 4);
|
|
MAYBE_DRAW_SIGNAL(2, 0x503, 5);
|
|
}
|
|
if (m5 & RAIL_BIT_LOWER) {
|
|
MAYBE_DRAW_SIGNAL(1, 0x505, 6);
|
|
MAYBE_DRAW_SIGNAL(0, 0x503, 7);
|
|
}
|
|
} else {
|
|
MAYBE_DRAW_SIGNAL(3, 0x4FB, 8);
|
|
MAYBE_DRAW_SIGNAL(2, 0x4FD, 9);
|
|
}
|
|
} else {
|
|
MAYBE_DRAW_SIGNAL(3, 0x4FF, 10);
|
|
MAYBE_DRAW_SIGNAL(2, 0x501, 11);
|
|
}
|
|
}
|
|
} else {
|
|
const byte *s;
|
|
const DrawTrackSeqStruct *drss;
|
|
|
|
if (!(m5 & (RAIL_TYPE_MASK&~RAIL_TYPE_SPECIAL)))
|
|
return;
|
|
|
|
if (ti->tileh != 0) { DrawFoundation(ti, ti->tileh); }
|
|
|
|
s = _track_depot_layout_table[m5 & 0x3F];
|
|
|
|
image = *(const uint16*)s;
|
|
if (image & 0x8000) image = (image & 0x7FFF) + tracktype_offs;
|
|
|
|
// adjust ground tile for desert
|
|
// (don't adjust for arctic, because snow in depots looks weird)
|
|
if ((_map2[ti->tile] & RAIL_MAP2LO_GROUND_MASK)==RAIL_GROUND_ICE_DESERT && _opt.landscape == LT_DESERT)
|
|
{
|
|
if(image!=3981)
|
|
image += 26; // tile with tracks
|
|
else
|
|
image = 4550; // flat ground
|
|
}
|
|
|
|
DrawGroundSprite(image);
|
|
|
|
drss = (const DrawTrackSeqStruct*)(s + sizeof(uint16));
|
|
|
|
while ((image=drss->image) != 0) {
|
|
if (image & 0x8000)
|
|
image |= _drawtile_track_palette;
|
|
image += tracktype_offs;
|
|
if (!(_display_opt & DO_TRANS_BUILDINGS)) // show transparent depots
|
|
image = (image & 0x3FFF) | 0x3224000;
|
|
AddSortableSpriteToDraw(image, ti->x | drss->subcoord_x,
|
|
ti->y | drss->subcoord_y, drss->width, drss->height, 0x17, ti->z);
|
|
drss++;
|
|
}
|
|
}
|
|
}
|
|
|
|
void DrawTrainDepotSprite(int x, int y, int image, int railtype)
|
|
{
|
|
uint32 ormod, img;
|
|
const DrawTrackSeqStruct *dtss;
|
|
const byte *t;
|
|
|
|
/* baseimage */
|
|
railtype *= TRACKTYPE_SPRITE_PITCH;
|
|
|
|
ormod = PLAYER_SPRITE_COLOR(_local_player);
|
|
|
|
t = _track_depot_layout_table[image];
|
|
|
|
x+=33;
|
|
y+=17;
|
|
|
|
img = *(const uint16*)t;
|
|
if (img & 0x8000) img = (img & 0x7FFF) + railtype;
|
|
DrawSprite(img, x, y);
|
|
|
|
for(dtss = (const DrawTrackSeqStruct *)(t + sizeof(uint16)); dtss->image != 0; dtss++) {
|
|
Point pt = RemapCoords(dtss->subcoord_x, dtss->subcoord_y, 0);
|
|
image = dtss->image;
|
|
if (image & 0x8000) image |= ormod;
|
|
DrawSprite(image + railtype, x + pt.x, y + pt.y);
|
|
}
|
|
}
|
|
|
|
#define NUM_SSD_ENTRY 256
|
|
#define NUM_SSD_STACK 32
|
|
|
|
typedef struct SetSignalsData {
|
|
int cur;
|
|
int cur_stack;
|
|
bool stop;
|
|
bool has_presignal;
|
|
|
|
// presignal info
|
|
int presignal_exits;
|
|
int presignal_exits_free;
|
|
|
|
// these are used to keep track of the signals that change.
|
|
byte bit[NUM_SSD_ENTRY];
|
|
TileIndex tile[NUM_SSD_ENTRY];
|
|
|
|
// these are used to keep track of the stack that modifies presignals recursively
|
|
TileIndex next_tile[NUM_SSD_STACK];
|
|
byte next_dir[NUM_SSD_STACK];
|
|
|
|
} SetSignalsData;
|
|
|
|
static bool SetSignalsEnumProc(uint tile, SetSignalsData *ssd, int track, uint length, byte *state)
|
|
{
|
|
// the tile has signals?
|
|
if (IS_TILETYPE(tile, MP_RAILWAY)) {
|
|
if ((_map5[tile]&RAIL_TYPE_MASK) == RAIL_TYPE_SIGNALS) {
|
|
if ((_map3_lo[tile] & _signals_table_both[track]) != 0) {
|
|
|
|
// is the signal pointing in to the segment existing?
|
|
if ((_map3_lo[tile] & _signals_table[track]) != 0) {
|
|
// yes, add the signal to the list of signals
|
|
if (ssd->cur != NUM_SSD_ENTRY) {
|
|
ssd->tile[ssd->cur] = tile; // remember the tile index
|
|
ssd->bit[ssd->cur] = track; // and the controlling bit number
|
|
ssd->cur++;
|
|
}
|
|
|
|
// remember if this block has a presignal.
|
|
ssd->has_presignal |= (_map3_hi[tile]&1);
|
|
}
|
|
|
|
// is this an exit signal that points out from the segment?
|
|
if ((_map3_hi[tile]&2) && _map3_lo[tile]&_signals_table_other[track]) {
|
|
ssd->presignal_exits++;
|
|
if ((_map2[tile]&_signals_table_other[track]) != 0)
|
|
ssd->presignal_exits_free++;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
} else if (IS_RAIL_DEPOT(_map5[tile]))
|
|
return true; // don't look further if the tile is a depot
|
|
}
|
|
return false;
|
|
}
|
|
|
|
static void SetSignalsAfterProc(TrackPathFinder *tpf)
|
|
{
|
|
SetSignalsData *ssd = tpf->userdata;
|
|
Vehicle *v;
|
|
uint tile, hash, val, offs;
|
|
TrackPathFinderLink *link;
|
|
|
|
ssd->stop = false;
|
|
|
|
// for each train, check if it is in the segment.
|
|
// then we know that the signal should be red.
|
|
FOR_ALL_VEHICLES(v) {
|
|
if (v->type != VEH_Train)
|
|
continue;
|
|
|
|
tile = v->tile;
|
|
if (v->u.rail.track == 0x40) { tile = GetVehicleOutOfTunnelTile(v); }
|
|
|
|
hash = PATHFIND_HASH_TILE(tile);
|
|
|
|
val = tpf->hash_head[hash];
|
|
if (val == 0)
|
|
continue;
|
|
|
|
if (!(val & 0x8000)) {
|
|
if ((TileIndex)tile == tpf->hash_tile[hash])
|
|
goto check_val;
|
|
} else {
|
|
offs = tpf->hash_tile[hash];
|
|
do {
|
|
link = PATHFIND_GET_LINK_PTR(tpf, offs);
|
|
if ( (TileIndex)tile == link->tile) {
|
|
val = link->flags;
|
|
check_val:;
|
|
// the train is on the track, in either direction?
|
|
if (val & (v->u.rail.track + (v->u.rail.track<<8))) {
|
|
ssd->stop = true;
|
|
return;
|
|
}
|
|
break;
|
|
}
|
|
} while ((offs=link->next) != 0xFFFF);
|
|
}
|
|
}
|
|
}
|
|
|
|
static const byte _dir_from_track[14] = {
|
|
0,1,0,1,2,1, 0,0,
|
|
2,3,3,2,3,0,
|
|
};
|
|
|
|
|
|
static void ChangeSignalStates(SetSignalsData *ssd)
|
|
{
|
|
int i;
|
|
|
|
// thinking about presignals...
|
|
// the presignal is green if,
|
|
// if no train is in the segment AND
|
|
// there is at least one green exit signal OR
|
|
// there are no exit signals in the segment
|
|
|
|
// then mark the signals in the segment accordingly
|
|
for(i=0; i!=ssd->cur; i++) {
|
|
uint tile = ssd->tile[i];
|
|
byte bit = _signals_table[ssd->bit[i]];
|
|
byte m2 = _map2[tile];
|
|
|
|
// presignals don't turn green if there is at least one presignal exit and none are free
|
|
if (_map3_hi[tile] & 1) {
|
|
int ex = ssd->presignal_exits, exfree = ssd->presignal_exits_free;
|
|
|
|
// subtract for dual combo signals so they don't count themselves
|
|
if (_map3_hi[tile]&2 && _map3_lo[tile]&_signals_table_other[ssd->bit[i]]) {
|
|
ex--;
|
|
if ((_map2[tile]&_signals_table_other[ssd->bit[i]]) != 0) exfree--;
|
|
}
|
|
|
|
// if we have exits and none are free, make red.
|
|
if (ex && !exfree) goto make_red;
|
|
}
|
|
|
|
// check if the signal is unaffected.
|
|
if (ssd->stop) {
|
|
make_red:
|
|
// turn red
|
|
if ( (bit&m2) == 0 )
|
|
continue;
|
|
} else {
|
|
// turn green
|
|
if ( (bit&m2) != 0 )
|
|
continue;
|
|
}
|
|
|
|
// Update signals on the other side of this exit signal, it changed.
|
|
// If this segment has presignals, then we treat exit signals going into the segment as normal signals.
|
|
if (_map3_hi[tile]&2 && (_map3_hi[tile]&1 || !ssd->has_presignal)) {
|
|
if (ssd->cur_stack != NUM_SSD_STACK) {
|
|
ssd->next_tile[ssd->cur_stack] = tile;
|
|
ssd->next_dir[ssd->cur_stack] = _dir_from_track[ssd->bit[i]];
|
|
ssd->cur_stack++;
|
|
} else {
|
|
printf("NUM_SSD_STACK too small\n");
|
|
}
|
|
}
|
|
|
|
// it changed, so toggle it
|
|
_map2[tile] = m2 ^ bit;
|
|
MarkTileDirtyByTile(tile);
|
|
}
|
|
}
|
|
|
|
|
|
bool UpdateSignalsOnSegment(uint tile, byte direction)
|
|
{
|
|
SetSignalsData ssd;
|
|
int result = -1;
|
|
|
|
ssd.cur_stack = 0;
|
|
direction>>=1;
|
|
|
|
for(;;) {
|
|
// go through one segment and update all signals pointing into that segment.
|
|
ssd.cur = ssd.presignal_exits = ssd.presignal_exits_free = 0;
|
|
ssd.has_presignal = false;
|
|
|
|
FollowTrack(tile, 0xC000 | TRANSPORT_RAIL, direction, (TPFEnumProc*)SetSignalsEnumProc, SetSignalsAfterProc, &ssd);
|
|
ChangeSignalStates(&ssd);
|
|
|
|
// remember the result only for the first iteration.
|
|
if (result < 0) result = ssd.stop;
|
|
|
|
// if any exit signals were changed, we need to keep going to modify the stuff behind those.
|
|
if(!ssd.cur_stack)
|
|
break;
|
|
|
|
// one or more exit signals were changed, so we need to update another segment too.
|
|
tile = ssd.next_tile[--ssd.cur_stack];
|
|
direction = ssd.next_dir[ssd.cur_stack];
|
|
}
|
|
|
|
return (bool)result;
|
|
}
|
|
|
|
void SetSignalsOnBothDir(uint tile, byte track)
|
|
{
|
|
static const byte _search_dir_1[6] = {1, 3, 1, 3, 5, 3};
|
|
static const byte _search_dir_2[6] = {5, 7, 7, 5, 7, 1};
|
|
|
|
UpdateSignalsOnSegment(tile, _search_dir_1[track]);
|
|
UpdateSignalsOnSegment(tile, _search_dir_2[track]);
|
|
}
|
|
|
|
uint GetSlopeZ_Track(TileInfo *ti)
|
|
{
|
|
uint z = ti->z;
|
|
int th = ti->tileh;
|
|
|
|
// check if it's a foundation
|
|
if (ti->tileh != 0) {
|
|
if ((ti->map5 & 0x80) == 0) {
|
|
uint f = GetRailFoundation(ti->tileh, ti->map5 & 0x3F);
|
|
if (f != 0) {
|
|
if (f < 15) {
|
|
// leveled foundation
|
|
return z + 8;
|
|
}
|
|
// inclined foundation
|
|
th = _inclined_tileh[f - 15];
|
|
}
|
|
} else if ((ti->map5 & 0xC0) == 0xC0) {
|
|
// depot or checkpoint
|
|
return z + 8;
|
|
}
|
|
return GetPartialZ(ti->x&0xF, ti->y&0xF, th) + z;
|
|
}
|
|
return z;
|
|
}
|
|
|
|
uint GetSlopeTileh_Track(TileInfo *ti)
|
|
{
|
|
// check if it's a foundation
|
|
if (ti->tileh != 0) {
|
|
if ((ti->map5 & 0x80) == 0) {
|
|
uint f = GetRailFoundation(ti->tileh, ti->map5 & 0x3F);
|
|
if (f != 0) {
|
|
if (f < 15) {
|
|
// leveled foundation
|
|
return 0;
|
|
}
|
|
// inclined foundation
|
|
return _inclined_tileh[f - 15];
|
|
}
|
|
} else if ((ti->map5 & 0xC0) == 0xC0) {
|
|
// depot or checkpoint
|
|
return 0;
|
|
}
|
|
}
|
|
return ti->tileh;
|
|
}
|
|
|
|
static void GetAcceptedCargo_Track(uint tile, AcceptedCargo *ac)
|
|
{
|
|
/* not used */
|
|
}
|
|
|
|
static void AnimateTile_Track(uint tile)
|
|
{
|
|
/* not used */
|
|
}
|
|
|
|
static void TileLoop_Track(uint tile)
|
|
{
|
|
byte a2;
|
|
byte rail;
|
|
byte m2;
|
|
byte owner;
|
|
|
|
m2 = _map2[tile] & 0xF;
|
|
|
|
/* special code for alps landscape */
|
|
if (_opt.landscape == LT_HILLY) {
|
|
/* convert into snow? */
|
|
if (GetTileZ(tile) > _opt.snow_line) {
|
|
a2 = RAIL_GROUND_ICE_DESERT;
|
|
goto modify_me;
|
|
}
|
|
|
|
/* special code for desert landscape */
|
|
} else if (_opt.landscape == LT_DESERT) {
|
|
/* convert into desert? */
|
|
if (GetMapExtraBits(tile) == 1) {
|
|
a2 = RAIL_GROUND_ICE_DESERT;
|
|
goto modify_me;
|
|
}
|
|
}
|
|
|
|
// Don't continue tile loop for depots
|
|
if (_map5[tile] & RAIL_TYPE_SPECIAL)
|
|
return;
|
|
|
|
a2 = RAIL_GROUND_GREEN;
|
|
|
|
if (m2 != RAIL_GROUND_BROWN) { /* wait until bottom is green */
|
|
/* determine direction of fence */
|
|
rail = _map5[tile] & RAIL_BIT_MASK;
|
|
|
|
if (rail == RAIL_BIT_UPPER) {
|
|
a2 = RAIL_GROUND_FENCE_HORIZ1;
|
|
} else if (rail == RAIL_BIT_LOWER) {
|
|
a2 = RAIL_GROUND_FENCE_HORIZ2;
|
|
} else if (rail == RAIL_BIT_LEFT) {
|
|
a2 = RAIL_GROUND_FENCE_VERT1;
|
|
} else if (rail == RAIL_BIT_RIGHT) {
|
|
a2 = RAIL_GROUND_FENCE_VERT2;
|
|
} else {
|
|
owner = _map_owner[tile];
|
|
|
|
if ( (!(rail&(RAIL_BIT_DIAG2|RAIL_BIT_UPPER|RAIL_BIT_LEFT)) && (rail&RAIL_BIT_DIAG1)) || rail==(RAIL_BIT_LOWER|RAIL_BIT_RIGHT)) {
|
|
if (!IS_TILETYPE(tile + TILE_XY(0,-1), MP_RAILWAY) ||
|
|
owner != _map_owner[tile + TILE_XY(0,-1)] ||
|
|
(_map5[tile + TILE_XY(0,-1)]==RAIL_BIT_UPPER || _map5[tile + TILE_XY(0,-1)]==RAIL_BIT_LEFT))
|
|
a2 = RAIL_GROUND_FENCE_NW;
|
|
}
|
|
|
|
if ( (!(rail&(RAIL_BIT_DIAG2|RAIL_BIT_LOWER|RAIL_BIT_RIGHT)) && (rail&RAIL_BIT_DIAG1)) || rail==(RAIL_BIT_UPPER|RAIL_BIT_LEFT)) {
|
|
if (!IS_TILETYPE(tile + TILE_XY(0,1), MP_RAILWAY) ||
|
|
owner != _map_owner[tile + TILE_XY(0,1)] ||
|
|
(_map5[tile + TILE_XY(0,1)]==RAIL_BIT_LOWER || _map5[tile + TILE_XY(0,1)]==RAIL_BIT_RIGHT))
|
|
a2 = (a2 == RAIL_GROUND_FENCE_NW) ? RAIL_GROUND_FENCE_SENW : RAIL_GROUND_FENCE_SE;
|
|
}
|
|
|
|
if ( (!(rail&(RAIL_BIT_DIAG1|RAIL_BIT_UPPER|RAIL_BIT_RIGHT)) && (rail&RAIL_BIT_DIAG2)) || rail==(RAIL_BIT_LOWER|RAIL_BIT_LEFT)) {
|
|
if (!IS_TILETYPE(tile + TILE_XY(-1,0), MP_RAILWAY) ||
|
|
owner != _map_owner[tile + TILE_XY(-1,0)] ||
|
|
(_map5[tile + TILE_XY(-1,0)]==RAIL_BIT_UPPER || _map5[tile + TILE_XY(-1,0)]==RAIL_BIT_RIGHT))
|
|
a2 = RAIL_GROUND_FENCE_NE;
|
|
}
|
|
|
|
if ( (!(rail&(RAIL_BIT_DIAG1|RAIL_BIT_LOWER|RAIL_BIT_LEFT)) && (rail&RAIL_BIT_DIAG2)) || rail==(RAIL_BIT_UPPER|RAIL_BIT_RIGHT)) {
|
|
if (!IS_TILETYPE(tile + TILE_XY(1,0), MP_RAILWAY) ||
|
|
owner != _map_owner[tile + TILE_XY(1,0)] ||
|
|
(_map5[tile + TILE_XY(1,0)]==RAIL_BIT_LOWER || _map5[tile + TILE_XY(1,0)]==RAIL_BIT_LEFT))
|
|
a2 = (a2 == RAIL_GROUND_FENCE_NE) ? RAIL_GROUND_FENCE_NESW : RAIL_GROUND_FENCE_SW;
|
|
}
|
|
}
|
|
}
|
|
|
|
modify_me:;
|
|
/* tile changed? */
|
|
if ( m2 != a2) {
|
|
_map2[tile] = (_map2[tile] & ~RAIL_MAP2LO_GROUND_MASK) | a2;
|
|
MarkTileDirtyByTile(tile);
|
|
}
|
|
}
|
|
|
|
|
|
static uint32 GetTileTrackStatus_Track(uint tile, TransportType mode) {
|
|
byte m5, a, b;
|
|
uint32 ret;
|
|
|
|
if (mode != TRANSPORT_RAIL)
|
|
return 0;
|
|
|
|
m5 = _map5[tile];
|
|
|
|
if (!(m5 & RAIL_TYPE_SPECIAL)) {
|
|
ret = (m5 | (m5 << 8)) & 0x3F3F;
|
|
if (!(m5 & RAIL_TYPE_SIGNALS)) {
|
|
if ( (ret & 0xFF) == 3)
|
|
/* Diagonal crossing? */
|
|
ret |= 0x40;
|
|
} else {
|
|
/* has_signals */
|
|
|
|
a = _map3_lo[tile];
|
|
b = _map2[tile];
|
|
|
|
b &= a;
|
|
|
|
/* When signals are not present (in neither
|
|
* direction), we pretend them to be green. (So if
|
|
* signals are only one way, the other way will
|
|
* implicitely become `red' */
|
|
if ((a & 0xC0) == 0) { b |= 0xC0; }
|
|
if ((a & 0x30) == 0) { b |= 0x30; }
|
|
|
|
if ( (b & 0x80) == 0) ret |= 0x10070000;
|
|
if ( (b & 0x40) == 0) ret |= 0x7100000;
|
|
if ( (b & 0x20) == 0) ret |= 0x20080000;
|
|
if ( (b & 0x10) == 0) ret |= 0x8200000;
|
|
}
|
|
} else if (m5 & 0x40) {
|
|
static const byte _train_spec_tracks[6] = {1,2,1,2,1,2};
|
|
m5 = _train_spec_tracks[m5 & 0x3F];
|
|
ret = (m5 << 8) + m5;
|
|
} else
|
|
return 0;
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void ClickTile_Track(uint tile)
|
|
{
|
|
if (IS_RAIL_DEPOT(_map5[tile]))
|
|
ShowTrainDepotWindow(tile);
|
|
else if (IS_RAIL_CHECKPOINT(_map5[tile]))
|
|
ShowRenameCheckpointWindow(&_checkpoints[GetCheckpointByTile(tile)]);
|
|
|
|
}
|
|
|
|
static void GetTileDesc_Track(uint tile, TileDesc *td)
|
|
{
|
|
byte m5 = _map5[tile];
|
|
if (!(m5 & 0x80)) {
|
|
if(!(m5 & 0x40)) // no signals
|
|
td->str = STR_1021_RAILROAD_TRACK;
|
|
else
|
|
{
|
|
switch(_map3_hi[tile] & 0x03)
|
|
{
|
|
case 0: td->str = STR_RAILROAD_TRACK_WITH_NORMAL_SIGNALS;
|
|
break;
|
|
case 1: td->str = STR_RAILROAD_TRACK_WITH_PRESIGNALS;
|
|
break;
|
|
case 2: td->str = STR_RAILROAD_TRACK_WITH_EXITSIGNALS;
|
|
break;
|
|
case 3: td->str = STR_RAILROAD_TRACK_WITH_COMBOSIGNALS;
|
|
break;
|
|
}
|
|
}
|
|
} else {
|
|
td->str = m5 < 0xC4 ? STR_1023_RAILROAD_TRAIN_DEPOT : STR_LANDINFO_CHECKPOINT;
|
|
}
|
|
td->owner = _map_owner[tile];
|
|
}
|
|
|
|
static void ChangeTileOwner_Track(uint tile, byte old_player, byte new_player)
|
|
{
|
|
if (_map_owner[tile] != old_player)
|
|
return;
|
|
|
|
if (new_player != 255) {
|
|
_map_owner[tile] = new_player;
|
|
} else {
|
|
DoCommandByTile(tile, 0, 0, DC_EXEC, CMD_LANDSCAPE_CLEAR);
|
|
}
|
|
}
|
|
|
|
static const byte _fractcoords_behind[4] = { 0x8F, 0x8, 0x80, 0xF8 };
|
|
static const byte _fractcoords_enter[4] = { 0x8A, 0x48, 0x84, 0xA8 };
|
|
static const byte _fractcoords_leave[4] = { 0x81, 0xD8, 0x8D, 0x18 };
|
|
static const byte _enter_directions[4] = {5, 7, 1, 3};
|
|
static const byte _leave_directions[4] = {1, 3, 5, 7};
|
|
static const byte _depot_track_mask[4] = {1, 2, 1, 2};
|
|
|
|
uint32 VehicleEnter_Track(Vehicle *v, uint tile, int x, int y)
|
|
{
|
|
byte fract_coord;
|
|
int dir;
|
|
|
|
// this routine applies only to trains in depot tiles
|
|
if (v->type != VEH_Train || !IS_RAIL_DEPOT(_map5[tile]))
|
|
return 0;
|
|
|
|
/* depot direction */
|
|
dir = _map5[tile] & RAIL_DEPOT_DIR;
|
|
|
|
fract_coord = (x & 0xF) + ((y & 0xF) << 4);
|
|
if (_fractcoords_behind[dir] == fract_coord) {
|
|
/* make sure a train is not entering the tile from behind */
|
|
return 8;
|
|
} else if (_fractcoords_enter[dir] == fract_coord) {
|
|
if (_enter_directions[dir] == v->direction) {
|
|
/* enter the depot */
|
|
v->u.rail.track = 0x80,
|
|
v->vehstatus |= VS_HIDDEN; /* hide it */
|
|
v->direction ^= 4;
|
|
if (v->next == NULL)
|
|
TrainEnterDepot(v, tile);
|
|
v->tile = tile;
|
|
InvalidateWindow(WC_VEHICLE_DEPOT, tile);
|
|
return 4;
|
|
}
|
|
} else if (_fractcoords_leave[dir] == fract_coord) {
|
|
if (_leave_directions[dir] == v->direction) {
|
|
/* leave the depot? */
|
|
if ((v=v->next) != NULL) {
|
|
v->vehstatus &= ~VS_HIDDEN;
|
|
v->u.rail.track = _depot_track_mask[dir];
|
|
}
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void InitializeRail()
|
|
{
|
|
_last_built_train_depot_tile = 0;
|
|
}
|
|
|
|
const TileTypeProcs _tile_type_rail_procs = {
|
|
DrawTile_Track, /* draw_tile_proc */
|
|
GetSlopeZ_Track, /* get_slope_z_proc */
|
|
ClearTile_Track, /* clear_tile_proc */
|
|
GetAcceptedCargo_Track, /* get_accepted_cargo_proc */
|
|
GetTileDesc_Track, /* get_tile_desc_proc */
|
|
GetTileTrackStatus_Track, /* get_tile_track_status_proc */
|
|
ClickTile_Track, /* click_tile_proc */
|
|
AnimateTile_Track, /* animate_tile_proc */
|
|
TileLoop_Track, /* tile_loop_clear */
|
|
ChangeTileOwner_Track, /* change_tile_owner_clear */
|
|
NULL, /* get_produced_cargo_proc */
|
|
VehicleEnter_Track, /* vehicle_enter_tile_proc */
|
|
NULL, /* vehicle_leave_tile_proc */
|
|
GetSlopeTileh_Track, /* get_slope_tileh_proc */
|
|
};
|