(svn r1486) -Codechange: moved all 'signs' stuff to signs.c/h and prepared it for
dynamic arraysreplace/41b28d7194a279bdc17475d4fbe2ea6ec885a466
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ff23795f5b
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a243285af4
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#include "stdafx.h"
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#include "ttd.h"
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#include "table/strings.h"
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#include "signs.h"
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#include "saveload.h"
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#include "command.h"
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/**
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*
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* Update the coordinate of one sign
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*
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*/
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static void UpdateSignVirtCoords(SignStruct *ss)
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{
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Point pt = RemapCoords(ss->x, ss->y, ss->z);
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SetDParam(0, ss->str);
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UpdateViewportSignPos(&ss->sign, pt.x, pt.y - 6, STR_2806);
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}
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/**
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*
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* Update all coordinates of a sign
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*
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*/
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void UpdateAllSignVirtCoords()
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{
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SignStruct *ss;
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FOR_ALL_SIGNS(ss)
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if (ss->str != 0)
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UpdateSignVirtCoords(ss);
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}
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/**
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*
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* Marks the region of a sign as dirty
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*
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* @param ss Pointer to the SignStruct
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*/
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static void MarkSignDirty(SignStruct *ss)
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{
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MarkAllViewportsDirty(
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ss->sign.left - 6,
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ss->sign.top - 3,
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ss->sign.left + ss->sign.width_1 * 4 + 12,
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ss->sign.top + 45);
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}
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/**
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*
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* Allocates a new sign
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*
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* @return The pointer to the new sign, or NULL if there is no more free space
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*/
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static SignStruct *AllocateSign()
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{
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SignStruct *s;
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FOR_ALL_SIGNS(s)
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if (s->str == 0)
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return s;
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return NULL;
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}
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/**
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*
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* Place a sign at the giving x/y
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*
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* @param p1 not used
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* @param p2 not used
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*/
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int32 CmdPlaceSign(int x, int y, uint32 flags, uint32 p1, uint32 p2)
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{
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SignStruct *ss;
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/* Try to locate a new sign */
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ss = AllocateSign();
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if (ss == NULL)
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return_cmd_error(STR_2808_TOO_MANY_SIGNS);
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/* When we execute, really make the sign */
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if (flags & DC_EXEC) {
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ss->str = STR_280A_SIGN;
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ss->x = x;
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ss->y = y;
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ss->z = GetSlopeZ(x,y);
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UpdateSignVirtCoords(ss);
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MarkSignDirty(ss);
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_new_sign_struct = ss;
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}
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return 0;
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}
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/**
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* Rename a sign
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*
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* @param sign_id Index of the sign
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* @param remove If 1, sign will be removed
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*/
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int32 CmdRenameSign(int x, int y, uint32 flags, uint32 sign_id, uint32 remove)
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{
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StringID str;
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SignStruct *ss;
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/* If GetDParam(0) == nothing, we delete the sign */
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if (GetDParam(0) != 0 && remove != 1) {
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/* Create the name */
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str = AllocateName((byte*)_decode_parameters, 0);
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if (str == 0)
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return CMD_ERROR;
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if (flags & DC_EXEC) {
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ss = GetSign(sign_id);
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MarkSignDirty(ss);
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/* Delete the old name */
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DeleteName(ss->str);
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/* Assign the new one */
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ss->str = str;
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/* Update */
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UpdateSignVirtCoords(ss);
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MarkSignDirty(ss);
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} else {
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/* Free the name, because we did not assign it yet */
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DeleteName(str);
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}
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} else {
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/* Delete sign */
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if (flags & DC_EXEC) {
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ss = GetSign(sign_id);
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/* Delete the name */
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DeleteName(ss->str);
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ss->str = 0;
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MarkSignDirty(ss);
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}
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}
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return 0;
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}
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/**
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*
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* Callback function that is called after a sign is placed
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*
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*/
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void CcPlaceSign(bool success, uint tile, uint32 p1, uint32 p2)
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{
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if (success) {
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ShowRenameSignWindow(_new_sign_struct);
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ResetObjectToPlace();
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}
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}
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/**
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*
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* PlaceProc function, called when someone pressed the button if the
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* sign-tool is selected
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*
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*/
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void PlaceProc_Sign(uint tile)
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{
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DoCommandP(tile, 0, 0, CcPlaceSign, CMD_PLACE_SIGN | CMD_MSG(STR_2809_CAN_T_PLACE_SIGN_HERE));
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}
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/**
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*
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* Initialize the signs
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*
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*/
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void InitializeSigns()
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{
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SignStruct *s;
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int i;
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memset(_sign_list, 0, sizeof(_sign_list[0]) * _sign_size);
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i = 0;
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FOR_ALL_SIGNS(s)
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s->index = i++;
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}
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static const byte _sign_desc[] = {
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SLE_VAR(SignStruct,str, SLE_UINT16),
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SLE_CONDVAR(SignStruct,x, SLE_FILE_I16 | SLE_VAR_I32, 0, 4),
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SLE_CONDVAR(SignStruct,y, SLE_FILE_I16 | SLE_VAR_I32, 0, 4),
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SLE_CONDVAR(SignStruct,x, SLE_INT32, 5, 255),
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SLE_CONDVAR(SignStruct,y, SLE_INT32, 5, 255),
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SLE_VAR(SignStruct,z, SLE_UINT8),
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SLE_END()
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};
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/**
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*
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* Save all signs
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*
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*/
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static void Save_SIGN()
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{
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SignStruct *s;
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FOR_ALL_SIGNS(s) {
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/* Don't save empty signs */
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if (s->str != 0) {
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SlSetArrayIndex(s->index);
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SlObject(s, _sign_desc);
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}
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}
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}
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/**
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*
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* Load all signs
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*
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*/
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static void Load_SIGN()
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{
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int index;
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while ((index = SlIterateArray()) != -1) {
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SignStruct *s = GetSign(index);
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SlObject(s, _sign_desc);
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}
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}
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const ChunkHandler _sign_chunk_handlers[] = {
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{ 'SIGN', Save_SIGN, Load_SIGN, CH_ARRAY | CH_LAST},
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};
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@ -0,0 +1,33 @@
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#ifndef SIGNS_H
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#define SIGNS_H
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typedef struct SignStruct {
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StringID str;
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ViewportSign sign;
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int32 x;
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int32 y;
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byte z;
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uint16 index;
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} SignStruct;
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VARDEF SignStruct _sign_list[40];
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VARDEF uint _sign_size;
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static inline SignStruct *GetSign(uint index)
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{
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assert(index < _sign_size);
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return &_sign_list[index];
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}
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#define FOR_ALL_SIGNS(s) for(s = _sign_list; s != &_sign_list[_sign_size]; s++)
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VARDEF SignStruct *_new_sign_struct;
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void UpdateAllSignVirtCoords();
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void PlaceProc_Sign(uint tile);
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/* misc.c */
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void ShowRenameSignWindow(SignStruct *ss);
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#endif /* SIGNS_H */
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