OpenTTD-patches/clear_cmd.c
ludde 2123deff13 (svn r2560) Fix: various minor code changes.
Added RandomTile/RandomTileSeed functions to generate a random tile.
Changed landscape routines so they don't assume that the Y map side is a power of two. (support for this is not complete, though)
Changed some frequently used map macros to not compute the values each time.
Silence some warnings on MSVC.
2005-07-13 19:51:31 +00:00

863 lines
18 KiB
C

#include "stdafx.h"
#include "openttd.h"
#include "table/strings.h"
#include "map.h"
#include "tile.h"
#include "viewport.h"
#include "command.h"
typedef struct TerraformerHeightMod {
TileIndex tile;
byte height;
} TerraformerHeightMod;
typedef struct TerraformerState {
int height[4];
uint32 flags;
int direction;
int modheight_count;
int tile_table_count;
int32 cost;
TileIndex *tile_table;
TerraformerHeightMod *modheight;
} TerraformerState;
static int TerraformAllowTileProcess(TerraformerState *ts, TileIndex tile)
{
TileIndex *t;
int count;
if (TileX(tile) == MapMaxX() || TileY(tile) == MapMaxY())
return -1;
t = ts->tile_table;
for(count = ts->tile_table_count; count != 0; count--,t++) {
if (*t == tile)
return 0;
}
return 1;
}
static int TerraformGetHeightOfTile(TerraformerState *ts, TileIndex tile)
{
TerraformerHeightMod *mod = ts->modheight;
int count;
for(count = ts->modheight_count; count != 0; count--, mod++) {
if (mod->tile == tile)
return mod->height;
}
return TileHeight(tile);
}
static void TerraformAddDirtyTile(TerraformerState *ts, TileIndex tile)
{
int count;
TileIndex *t;
count = ts->tile_table_count;
if (count >= 625)
return;
for(t = ts->tile_table; count != 0; count--,t++) {
if (*t == tile)
return;
}
ts->tile_table[ts->tile_table_count++] = tile;
}
static void TerraformAddDirtyTileAround(TerraformerState *ts, TileIndex tile)
{
TerraformAddDirtyTile(ts, tile + TileDiffXY( 0, -1));
TerraformAddDirtyTile(ts, tile + TileDiffXY(-1, -1));
TerraformAddDirtyTile(ts, tile + TileDiffXY(-1, 0));
TerraformAddDirtyTile(ts, tile);
}
static int TerraformProc(TerraformerState *ts, TileIndex tile, int mode)
{
int r;
int32 ret;
assert(tile < MapSize());
if ((r=TerraformAllowTileProcess(ts, tile)) <= 0)
return r;
if (IsTileType(tile, MP_RAILWAY)) {
static const byte _railway_modes[4] = {8, 0x10, 4, 0x20};
static const byte _railway_dangslopes[4] = {0xd, 0xe, 7, 0xb};
static const byte _railway_dangslopes2[4] = {0x2, 0x1, 0x8, 0x4};
// Nothing could be built at the steep slope - this avoids a bug
// when you have a single diagonal track in one corner on a
// basement and then you raise/lower the other corner.
int tileh = GetTileSlope(tile, NULL) & 0xF;
if (tileh == _railway_dangslopes[mode] ||
tileh == _railway_dangslopes2[mode]) {
_terraform_err_tile = tile;
_error_message = STR_1008_MUST_REMOVE_RAILROAD_TRACK;
return -1;
}
// If we have a single diagonal track there, the other side of
// tile can be terraformed.
if ((_m[tile].m5&~0x40) == _railway_modes[mode])
return 0;
}
ret = DoCommandByTile(tile, 0,0, ts->flags & ~DC_EXEC, CMD_LANDSCAPE_CLEAR);
if (ret == CMD_ERROR) {
_terraform_err_tile = tile;
return -1;
}
ts->cost += ret;
if (ts->tile_table_count >= 625)
return -1;
ts->tile_table[ts->tile_table_count++] = tile;
return 0;
}
static bool TerraformTileHeight(TerraformerState *ts, TileIndex tile, int height)
{
int nh;
TerraformerHeightMod *mod;
int count;
assert(tile < MapSize());
if (height < 0) {
_error_message = STR_1003_ALREADY_AT_SEA_LEVEL;
return false;
}
_error_message = STR_1004_TOO_HIGH;
if (height > 0xF)
return false;
nh = TerraformGetHeightOfTile(ts, tile);
if (nh < 0 || height == nh)
return false;
if (TerraformProc(ts, tile, 0) < 0) return false;
if (TerraformProc(ts, tile + TileDiffXY( 0, -1), 1) < 0) return false;
if (TerraformProc(ts, tile + TileDiffXY(-1, -1), 2) < 0) return false;
if (TerraformProc(ts, tile + TileDiffXY(-1, 0), 3) < 0) return false;
mod = ts->modheight;
count = ts->modheight_count;
for(;;) {
if (count == 0) {
if (ts->modheight_count >= 576)
return false;
ts->modheight_count++;
break;
}
if (mod->tile == tile) break;
mod++;
count--;
}
mod->tile = tile;
mod->height = (byte)height;
ts->cost += _price.terraform;
{
int direction = ts->direction, r;
const TileIndexDiffC *ttm;
static const TileIndexDiffC _terraform_tilepos[] = {
{ 1, 0},
{-2, 0},
{ 1, 1},
{ 0, -2}
};
for(ttm = _terraform_tilepos; ttm != endof(_terraform_tilepos); ttm++) {
tile += ToTileIndexDiff(*ttm);
r = TerraformGetHeightOfTile(ts, tile);
if (r != height && r-direction != height && r+direction != height) {
if (!TerraformTileHeight(ts, tile, r+direction))
return false;
}
}
}
return true;
}
/** Terraform land
* @param x,y coordinates to terraform
* @param p1 corners to terraform.
* @param p2 direction; eg up or down
*/
int32 CmdTerraformLand(int x, int y, uint32 flags, uint32 p1, uint32 p2)
{
TerraformerState ts;
TileIndex tile;
int direction;
TerraformerHeightMod modheight_data[576];
TileIndex tile_table_data[625];
SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
_error_message = INVALID_STRING_ID;
_terraform_err_tile = 0;
ts.direction = direction = p2 ? 1 : -1;
ts.flags = flags;
ts.modheight_count = ts.tile_table_count = 0;
ts.cost = 0;
ts.modheight = modheight_data;
ts.tile_table = tile_table_data;
tile = TileVirtXY(x, y);
/* Make an extra check for map-bounds cause we add tiles to the originating tile */
if (tile + TileDiffXY(1, 1) > MapSize()) return CMD_ERROR;
if (p1 & 1) {
if (!TerraformTileHeight(&ts, tile + TileDiffXY(1, 0),
TileHeight(tile + TileDiffXY(1, 0)) + direction))
return CMD_ERROR;
}
if (p1 & 2) {
if (!TerraformTileHeight(&ts, tile + TileDiffXY(1, 1),
TileHeight(tile + TileDiffXY(1, 1)) + direction))
return CMD_ERROR;
}
if (p1 & 4) {
if (!TerraformTileHeight(&ts, tile + TileDiffXY(0, 1),
TileHeight(tile + TileDiffXY(0, 1)) + direction))
return CMD_ERROR;
}
if (p1 & 8) {
if (!TerraformTileHeight(&ts, tile + TileDiffXY(0, 0),
TileHeight(tile + TileDiffXY(0, 0)) + direction))
return CMD_ERROR;
}
if (direction == -1) {
/* Check if tunnel would take damage */
int count;
TileIndex *ti = ts.tile_table;
for (count = ts.tile_table_count; count != 0; count--, ti++) {
uint z, t;
TileIndex tile = *ti;
z = TerraformGetHeightOfTile(&ts, tile + TileDiffXY(0, 0));
t = TerraformGetHeightOfTile(&ts, tile + TileDiffXY(1, 0));
if (t <= z) z = t;
t = TerraformGetHeightOfTile(&ts, tile + TileDiffXY(1, 1));
if (t <= z) z = t;
t = TerraformGetHeightOfTile(&ts, tile + TileDiffXY(0, 1));
if (t <= z) z = t;
if (!CheckTunnelInWay(tile, z*8))
return_cmd_error(STR_1002_EXCAVATION_WOULD_DAMAGE);
}
}
if (flags & DC_EXEC) {
/* Clear the landscape at the tiles */
{
int count;
TileIndex *ti = ts.tile_table;
for (count = ts.tile_table_count; count != 0; count--, ti++) {
DoCommandByTile(*ti, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
}
}
/* change the height */
{
int count;
TerraformerHeightMod *mod;
mod = ts.modheight;
for (count = ts.modheight_count; count != 0; count--, mod++) {
TileIndex til = mod->tile;
SetTileHeight(til, mod->height);
TerraformAddDirtyTileAround(&ts, til);
}
}
/* finally mark the dirty tiles dirty */
{
int count;
TileIndex *ti = ts.tile_table;
for (count = ts.tile_table_count; count != 0; count--, ti++) {
MarkTileDirtyByTile(*ti);
}
}
}
return ts.cost;
}
/** Levels a selected (rectangle) area of land
* @param x,y end tile of area-drag
* @param p1 start tile of area drag
* @param p2 unused
*/
int32 CmdLevelLand(int ex, int ey, uint32 flags, uint32 p1, uint32 p2)
{
int size_x, size_y;
int sx, sy;
uint h, curh;
TileIndex tile;
int32 ret, cost, money;
if (p1 > MapSize()) return CMD_ERROR;
SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
// remember level height
h = TileHeight(p1);
ex >>= 4; ey >>= 4;
// make sure sx,sy are smaller than ex,ey
sx = TileX(p1);
sy = TileY(p1);
if (ex < sx) intswap(ex, sx);
if (ey < sy) intswap(ey, sy);
tile = TileXY(sx, sy);
size_x = ex-sx+1;
size_y = ey-sy+1;
money = GetAvailableMoneyForCommand();
cost = 0;
BEGIN_TILE_LOOP(tile2, size_x, size_y, tile) {
curh = TileHeight(tile2);
while (curh != h) {
ret = DoCommandByTile(tile2, 8, (curh > h) ? 0 : 1, flags & ~DC_EXEC, CMD_TERRAFORM_LAND);
if (CmdFailed(ret)) break;
cost += ret;
if (flags & DC_EXEC) {
if ((money -= ret) < 0) {
_additional_cash_required = ret;
return cost - ret;
}
DoCommandByTile(tile2, 8, (curh > h) ? 0 : 1, flags, CMD_TERRAFORM_LAND);
}
curh += (curh > h) ? -1 : 1;
}
} END_TILE_LOOP(tile2, size_x, size_y, tile)
return (cost == 0) ? CMD_ERROR : cost;
}
/** Purchase a land area. Actually you only purchase one tile, so
* the name is a bit confusing ;p
* @param x,y the tile the player is purchasing
* @param p1 unused
* @param p2 unused
*/
int32 CmdPurchaseLandArea(int x, int y, uint32 flags, uint32 p1, uint32 p2)
{
TileIndex tile;
int32 cost;
SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
tile = TileVirtXY(x, y);
if (!EnsureNoVehicle(tile)) return CMD_ERROR;
if (IsTileType(tile, MP_UNMOVABLE) && _m[tile].m5 == 3 &&
IsTileOwner(tile, _current_player))
return_cmd_error(STR_5807_YOU_ALREADY_OWN_IT);
cost = DoCommandByTile(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
if (CmdFailed(cost)) return CMD_ERROR;
if (flags & DC_EXEC) {
ModifyTile(tile,
MP_SETTYPE(MP_UNMOVABLE) | MP_MAPOWNER_CURRENT | MP_MAP5,
3 /* map5 */
);
}
return cost + _price.purchase_land * 10;
}
static int32 ClearTile_Clear(TileIndex tile, byte flags)
{
static const int32 * _clear_price_table[] = {
NULL,
&_price.clear_1, &_price.clear_1,&_price.clear_1,
&_price.purchase_land,&_price.purchase_land,&_price.purchase_land,&_price.purchase_land,
&_price.clear_2,&_price.clear_2,&_price.clear_2,&_price.clear_2,
&_price.clear_3,&_price.clear_3,&_price.clear_3,&_price.clear_3,
&_price.purchase_land,&_price.purchase_land,&_price.purchase_land,&_price.purchase_land,
&_price.purchase_land,&_price.purchase_land,&_price.purchase_land,&_price.purchase_land,
&_price.clear_2,&_price.clear_2,&_price.clear_2,&_price.clear_2,
};
const int32 *price = _clear_price_table[_m[tile].m5 & 0x1F];
if (flags & DC_EXEC)
DoClearSquare(tile);
if (price == NULL)
return 0;
return *price;
}
/** Sell a land area. Actually you only sell one tile, so
* the name is a bit confusing ;p
* @param x,y the tile the player is selling
* @param p1 unused
* @param p2 unused
*/
int32 CmdSellLandArea(int x, int y, uint32 flags, uint32 p1, uint32 p2)
{
TileIndex tile;
SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
tile = TileVirtXY(x, y);
if (!IsTileType(tile, MP_UNMOVABLE) || _m[tile].m5 != 3) return CMD_ERROR;
if (!CheckTileOwnership(tile) && _current_player != OWNER_WATER) return CMD_ERROR;
if (!EnsureNoVehicle(tile)) return CMD_ERROR;
if (flags & DC_EXEC)
DoClearSquare(tile);
return - _price.purchase_land * 2;
}
#include "table/clear_land.h"
void DrawClearLandTile(TileInfo *ti, byte set)
{
DrawGroundSprite(0xF54 + _tileh_to_sprite[ti->tileh] + set * 19);
}
void DrawHillyLandTile(TileInfo *ti)
{
if (ti->tileh != 0) {
DrawGroundSprite(0xFA0 + _tileh_to_sprite[ti->tileh]);
} else {
DrawGroundSprite(_landscape_clear_sprites[((ti->x^ti->y) >> 4) & 0x7]);
}
}
void DrawClearLandFence(TileInfo *ti, byte img)
{
byte z = ti->z;
if (ti->tileh & 2) {
z += 8;
if (ti->tileh == 0x17)
z += 8;
}
if (img & 0x38) {
DrawGroundSpriteAt(_clear_land_fence_sprites_1[((img >> 3) & 7) - 1] + _fence_mod_by_tileh[ti->tileh], ti->x, ti->y, z);
}
if (img & 0x7) {
DrawGroundSpriteAt(_clear_land_fence_sprites_1[(img & 7) - 1] + _fence_mod_by_tileh_2[ti->tileh], ti->x, ti->y, z);
}
}
static void DrawTile_Clear(TileInfo *ti)
{
switch((ti->map5 & (7<<2)) >> 2) {
case 0:
DrawClearLandTile(ti, (ti->map5 & 3));
break;
case 1:
DrawHillyLandTile(ti);
break;
case 2:
DrawGroundSprite(0xFB7 + _tileh_to_sprite[ti->tileh]);
break;
case 3:
DrawGroundSprite( _clear_land_sprites_1[_m[ti->tile].m3&0xF] + _tileh_to_sprite[ti->tileh]);
break;
case 4:
DrawGroundSprite( _clear_land_sprites_2[ti->map5&3] + _tileh_to_sprite[ti->tileh]);
break;
case 5:
DrawGroundSprite( _clear_land_sprites_3[ti->map5&3] + _tileh_to_sprite[ti->tileh]);
break;
}
DrawClearLandFence(ti, _m[ti->tile].m4 >> 2);
}
static uint GetSlopeZ_Clear(TileInfo *ti)
{
return GetPartialZ(ti->x & 0xF, ti->y & 0xF, ti->tileh) + ti->z;
}
static uint GetSlopeTileh_Clear(TileInfo *ti)
{
return ti->tileh;
}
static void GetAcceptedCargo_Clear(TileIndex tile, AcceptedCargo ac)
{
/* unused */
}
static void AnimateTile_Clear(TileIndex tile)
{
/* unused */
}
void TileLoopClearHelper(TileIndex tile)
{
byte img_1;
byte img_2;
static const byte img_by_map5[] = { 0, 0, 0, 2, 1, 1, 0, 0 };
TileIndex dirty = INVALID_TILE;
switch (GetTileType(tile)) {
case MP_CLEAR:
img_1 = img_by_map5[(_m[tile].m5 & 0x1C) >> 2];
break;
case MP_TREES:
if ((_m[tile].m2 & 0x30) == 0x20)
img_1 = 1;
else
img_1 = 0;
break;
default:
img_1 = 0;
break;
}
switch (GetTileType(TILE_ADDXY(tile, 1, 0))) {
case MP_CLEAR:
img_2 = img_by_map5[(_m[TILE_ADDXY(tile, 1, 0)].m5 & 0x1C) >> 2];
break;
case MP_TREES:
if ((_m[TILE_ADDXY(tile, 1, 0)].m2 & 0x30) == 0x20)
img_2 = 1;
else
img_2 = 0;
break;
default:
img_2 = 0;
break;
}
if ((_m[tile].m4 & 0xE0) == 0) {
if ((img_1 & 2) != (img_2 & 2)) {
_m[tile].m4 |= 3 << 5;
dirty = tile;
}
} else {
if (img_1 == 1 && img_2 == 1) {
_m[tile].m4 &= ~(3 << 5);
dirty = tile;
}
}
switch (GetTileType(TILE_ADDXY(tile, 0, 1))) {
case MP_CLEAR:
img_2 = img_by_map5[(_m[TILE_ADDXY(tile, 0, 1)].m5 & 0x1C) >> 2];
break;
case MP_TREES:
if ((_m[TILE_ADDXY(tile, 0, 1)].m2 & 0x30) == 0x20)
img_2 = 1;
else
img_2 = 0;
break;
default:
img_2 = 0;
break;
}
if ((_m[tile].m4 & 0x1C) == 0) {
if ((img_1 & 2) != (img_2 & 2)) {
_m[tile].m4 |= 3 << 2;
dirty = tile;
}
} else {
if (img_1 == 1 && img_2 == 1) {
_m[tile].m4 &= ~(3 << 2);
dirty = tile;
}
}
if (dirty != INVALID_TILE)
MarkTileDirtyByTile(dirty);
}
/* convert into snowy tiles */
static void TileLoopClearAlps(TileIndex tile)
{
int k;
byte m5,tmp;
/* distance from snow line, in steps of 8 */
k = GetTileZ(tile) - _opt.snow_line;
m5 = _m[tile].m5 & 0x1C;
tmp = _m[tile].m5 & 3;
if (k < -8) {
/* snow_m2_down */
if (m5 != 0x10)
return;
if (tmp == 0)
m5 = 3;
} else if (k == -8) {
/* snow_m1 */
if (m5 != 0x10) {
m5 = 0x10;
} else if (tmp != 0) {
m5 = (tmp - 1) + 0x10;
} else
return;
} else if (k < 8) {
/* snow_0 */
if (m5 != 0x10) {
m5 = 0x10;
} else if (tmp != 1) {
m5 = 1;
if (tmp != 0)
m5 = tmp - 1;
m5 += 0x10;
} else
return;
} else if (k == 8) {
/* snow_p1 */
if (m5 != 0x10) {
m5 = 0x10;
} else if (tmp != 2) {
m5 = 2;
if (tmp <= 2)
m5 = tmp + 1;
m5 += 0x10;
} else
return;
} else {
/* snow_p2_up */
if (m5 != 0x10) {
m5 = 0x10;
} else if (tmp != 3) {
m5 = tmp + 1 + 0x10;
} else
return;
}
_m[tile].m5 = m5;
MarkTileDirtyByTile(tile);
}
static void TileLoopClearDesert(TileIndex tile)
{
if ( (_m[tile].m5 & 0x1C) == 0x14)
return;
if (GetMapExtraBits(tile) == 1) {
_m[tile].m5 = 0x17;
} else {
if (GetMapExtraBits(tile + TileDiffXY( 1, 0)) != 1 &&
GetMapExtraBits(tile + TileDiffXY(-1, 0)) != 1 &&
GetMapExtraBits(tile + TileDiffXY( 0, 1)) != 1 &&
GetMapExtraBits(tile + TileDiffXY( 0, -1)) != 1)
return;
_m[tile].m5 = 0x15;
}
MarkTileDirtyByTile(tile);
}
static void TileLoop_Clear(TileIndex tile)
{
byte m5,m3;
TileLoopClearHelper(tile);
if (_opt.landscape == LT_DESERT) {
TileLoopClearDesert(tile);
} else if (_opt.landscape == LT_HILLY) {
TileLoopClearAlps(tile);
}
m5 = _m[tile].m5;
if ( (m5 & 0x1C) == 0x10 || (m5 & 0x1C) == 0x14)
return;
if ( (m5 & 0x1C) != 0xC) {
if ( (m5 & 3) == 3)
return;
if (_game_mode != GM_EDITOR) {
m5 += 0x20;
if (m5 >= 0x20) {
// Didn't overflow
_m[tile].m5 = m5;
return;
}
/* did overflow, so continue */
} else {
m5 = ((byte)Random() > 21) ? (2) : (6);
}
m5++;
} else if (_game_mode != GM_EDITOR) {
/* handle farm field */
m5 += 0x20;
if (m5 >= 0x20) {
// Didn't overflow
_m[tile].m5 = m5;
return;
}
/* overflowed */
m3 = _m[tile].m3 + 1;
assert( (m3 & 0xF) != 0);
if ( (m3 & 0xF) >= 9) /* NOTE: will not work properly if m3&0xF == 0xF */
m3 &= ~0xF;
_m[tile].m3 = m3;
}
_m[tile].m5 = m5;
MarkTileDirtyByTile(tile);
}
void GenerateClearTile(void)
{
int i,j;
TileIndex tile;
uint32 r;
/* add hills */
i = ScaleByMapSize((Random() & 0x3FF) + 0x400);
do {
tile = RandomTile();
if (IsTileType(tile, MP_CLEAR))
_m[tile].m5 = (byte)((_m[tile].m5 & ~(3<<2)) | (1<<2));
} while (--i);
/* add grey squares */
i = ScaleByMapSize((Random() & 0x7F) + 0x80);
do {
r = Random();
tile = RandomTileSeed(r);
if (IsTileType(tile, MP_CLEAR)) {
j = ((r >> 16) & 0xF) + 5;
for(;;) {
TileIndex tile_new;
_m[tile].m5 = (byte)((_m[tile].m5 & ~(3<<2)) | (2<<2));
do {
if (--j == 0) goto get_out;
tile_new = tile + TileOffsByDir(Random() & 3);
} while (!IsTileType(tile_new, MP_CLEAR));
tile = tile_new;
}
get_out:;
}
} while (--i);
}
static void ClickTile_Clear(TileIndex tile)
{
/* not used */
}
static uint32 GetTileTrackStatus_Clear(TileIndex tile, TransportType mode)
{
return 0;
}
static const StringID _clear_land_str[4+8-1] = {
STR_080B_ROUGH_LAND,
STR_080A_ROCKS,
STR_080E_FIELDS,
STR_080F_SNOW_COVERED_LAND,
STR_0810_DESERT,
0,
0,
STR_080C_BARE_LAND,
STR_080D_GRASS,
STR_080D_GRASS,
STR_080D_GRASS,
};
static void GetTileDesc_Clear(TileIndex tile, TileDesc *td)
{
int i = (_m[tile].m5>>2) & 7;
if (i == 0)
i = (_m[tile].m5 & 3) + 8;
td->str = _clear_land_str[i - 1];
td->owner = GetTileOwner(tile);
}
static void ChangeTileOwner_Clear(TileIndex tile, byte old_player, byte new_player)
{
return;
}
void InitializeClearLand(void)
{
_opt.snow_line = _patches.snow_line_height * 8;
}
const TileTypeProcs _tile_type_clear_procs = {
DrawTile_Clear, /* draw_tile_proc */
GetSlopeZ_Clear, /* get_slope_z_proc */
ClearTile_Clear, /* clear_tile_proc */
GetAcceptedCargo_Clear, /* get_accepted_cargo_proc */
GetTileDesc_Clear, /* get_tile_desc_proc */
GetTileTrackStatus_Clear, /* get_tile_track_status_proc */
ClickTile_Clear, /* click_tile_proc */
AnimateTile_Clear, /* animate_tile_proc */
TileLoop_Clear, /* tile_loop_clear */
ChangeTileOwner_Clear, /* change_tile_owner_clear */
NULL, /* get_produced_cargo_proc */
NULL, /* vehicle_enter_tile_proc */
NULL, /* vehicle_leave_tile_proc */
GetSlopeTileh_Clear, /* get_slope_tileh_proc */
};