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https://github.com/OpenTTD/OpenTTD.git
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863 lines
18 KiB
C
863 lines
18 KiB
C
#include "stdafx.h"
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#include "openttd.h"
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#include "table/strings.h"
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#include "map.h"
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#include "player.h"
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#include "tile.h"
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#include "viewport.h"
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#include "command.h"
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#include "variables.h"
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typedef struct TerraformerHeightMod {
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TileIndex tile;
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byte height;
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} TerraformerHeightMod;
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typedef struct TerraformerState {
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int height[4];
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uint32 flags;
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int direction;
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int modheight_count;
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int tile_table_count;
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int32 cost;
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TileIndex *tile_table;
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TerraformerHeightMod *modheight;
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} TerraformerState;
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static int TerraformAllowTileProcess(TerraformerState *ts, TileIndex tile)
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{
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TileIndex *t;
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int count;
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if (TileX(tile) == MapMaxX() || TileY(tile) == MapMaxY())
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return -1;
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t = ts->tile_table;
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for(count = ts->tile_table_count; count != 0; count--,t++) {
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if (*t == tile)
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return 0;
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}
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return 1;
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}
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static int TerraformGetHeightOfTile(TerraformerState *ts, TileIndex tile)
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{
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TerraformerHeightMod *mod = ts->modheight;
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int count;
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for(count = ts->modheight_count; count != 0; count--, mod++) {
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if (mod->tile == tile)
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return mod->height;
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}
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return TileHeight(tile);
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}
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static void TerraformAddDirtyTile(TerraformerState *ts, TileIndex tile)
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{
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int count;
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TileIndex *t;
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count = ts->tile_table_count;
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if (count >= 625)
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return;
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for(t = ts->tile_table; count != 0; count--,t++) {
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if (*t == tile)
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return;
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}
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ts->tile_table[ts->tile_table_count++] = tile;
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}
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static void TerraformAddDirtyTileAround(TerraformerState *ts, TileIndex tile)
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{
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TerraformAddDirtyTile(ts, tile + TileDiffXY( 0, -1));
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TerraformAddDirtyTile(ts, tile + TileDiffXY(-1, -1));
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TerraformAddDirtyTile(ts, tile + TileDiffXY(-1, 0));
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TerraformAddDirtyTile(ts, tile);
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}
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static int TerraformProc(TerraformerState *ts, TileIndex tile, int mode)
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{
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int r;
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int32 ret;
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assert(tile < MapSize());
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if ((r=TerraformAllowTileProcess(ts, tile)) <= 0)
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return r;
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if (IsTileType(tile, MP_RAILWAY)) {
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static const byte _railway_modes[4] = {8, 0x10, 4, 0x20};
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static const byte _railway_dangslopes[4] = {0xd, 0xe, 7, 0xb};
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static const byte _railway_dangslopes2[4] = {0x2, 0x1, 0x8, 0x4};
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// Nothing could be built at the steep slope - this avoids a bug
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// when you have a single diagonal track in one corner on a
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// basement and then you raise/lower the other corner.
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int tileh = GetTileSlope(tile, NULL) & 0xF;
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if (tileh == _railway_dangslopes[mode] ||
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tileh == _railway_dangslopes2[mode]) {
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_terraform_err_tile = tile;
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_error_message = STR_1008_MUST_REMOVE_RAILROAD_TRACK;
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return -1;
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}
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// If we have a single diagonal track there, the other side of
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// tile can be terraformed.
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if ((_m[tile].m5&~0x40) == _railway_modes[mode])
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return 0;
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}
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ret = DoCommandByTile(tile, 0,0, ts->flags & ~DC_EXEC, CMD_LANDSCAPE_CLEAR);
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if (ret == CMD_ERROR) {
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_terraform_err_tile = tile;
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return -1;
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}
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ts->cost += ret;
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if (ts->tile_table_count >= 625)
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return -1;
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ts->tile_table[ts->tile_table_count++] = tile;
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return 0;
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}
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static bool TerraformTileHeight(TerraformerState *ts, TileIndex tile, int height)
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{
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int nh;
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TerraformerHeightMod *mod;
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int count;
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assert(tile < MapSize());
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if (height < 0) {
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_error_message = STR_1003_ALREADY_AT_SEA_LEVEL;
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return false;
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}
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_error_message = STR_1004_TOO_HIGH;
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if (height > 0xF)
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return false;
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nh = TerraformGetHeightOfTile(ts, tile);
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if (nh < 0 || height == nh)
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return false;
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if (TerraformProc(ts, tile, 0) < 0) return false;
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if (TerraformProc(ts, tile + TileDiffXY( 0, -1), 1) < 0) return false;
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if (TerraformProc(ts, tile + TileDiffXY(-1, -1), 2) < 0) return false;
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if (TerraformProc(ts, tile + TileDiffXY(-1, 0), 3) < 0) return false;
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mod = ts->modheight;
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count = ts->modheight_count;
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for(;;) {
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if (count == 0) {
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if (ts->modheight_count >= 576)
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return false;
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ts->modheight_count++;
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break;
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}
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if (mod->tile == tile) break;
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mod++;
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count--;
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}
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mod->tile = tile;
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mod->height = (byte)height;
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ts->cost += _price.terraform;
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{
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int direction = ts->direction, r;
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const TileIndexDiffC *ttm;
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static const TileIndexDiffC _terraform_tilepos[] = {
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{ 1, 0},
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{-2, 0},
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{ 1, 1},
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{ 0, -2}
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};
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for(ttm = _terraform_tilepos; ttm != endof(_terraform_tilepos); ttm++) {
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tile += ToTileIndexDiff(*ttm);
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r = TerraformGetHeightOfTile(ts, tile);
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if (r != height && r-direction != height && r+direction != height) {
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if (!TerraformTileHeight(ts, tile, r+direction))
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return false;
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}
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}
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}
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return true;
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}
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/** Terraform land
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* @param x,y coordinates to terraform
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* @param p1 corners to terraform.
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* @param p2 direction; eg up or down
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*/
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int32 CmdTerraformLand(int x, int y, uint32 flags, uint32 p1, uint32 p2)
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{
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TerraformerState ts;
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TileIndex tile;
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int direction;
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TerraformerHeightMod modheight_data[576];
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TileIndex tile_table_data[625];
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SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
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_error_message = INVALID_STRING_ID;
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_terraform_err_tile = 0;
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ts.direction = direction = p2 ? 1 : -1;
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ts.flags = flags;
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ts.modheight_count = ts.tile_table_count = 0;
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ts.cost = 0;
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ts.modheight = modheight_data;
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ts.tile_table = tile_table_data;
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tile = TileVirtXY(x, y);
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/* Make an extra check for map-bounds cause we add tiles to the originating tile */
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if (tile + TileDiffXY(1, 1) > MapSize()) return CMD_ERROR;
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if (p1 & 1) {
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if (!TerraformTileHeight(&ts, tile + TileDiffXY(1, 0),
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TileHeight(tile + TileDiffXY(1, 0)) + direction))
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return CMD_ERROR;
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}
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if (p1 & 2) {
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if (!TerraformTileHeight(&ts, tile + TileDiffXY(1, 1),
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TileHeight(tile + TileDiffXY(1, 1)) + direction))
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return CMD_ERROR;
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}
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if (p1 & 4) {
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if (!TerraformTileHeight(&ts, tile + TileDiffXY(0, 1),
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TileHeight(tile + TileDiffXY(0, 1)) + direction))
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return CMD_ERROR;
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}
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if (p1 & 8) {
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if (!TerraformTileHeight(&ts, tile + TileDiffXY(0, 0),
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TileHeight(tile + TileDiffXY(0, 0)) + direction))
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return CMD_ERROR;
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}
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if (direction == -1) {
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/* Check if tunnel would take damage */
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int count;
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TileIndex *ti = ts.tile_table;
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for (count = ts.tile_table_count; count != 0; count--, ti++) {
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uint z, t;
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TileIndex tile = *ti;
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z = TerraformGetHeightOfTile(&ts, tile + TileDiffXY(0, 0));
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t = TerraformGetHeightOfTile(&ts, tile + TileDiffXY(1, 0));
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if (t <= z) z = t;
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t = TerraformGetHeightOfTile(&ts, tile + TileDiffXY(1, 1));
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if (t <= z) z = t;
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t = TerraformGetHeightOfTile(&ts, tile + TileDiffXY(0, 1));
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if (t <= z) z = t;
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if (!CheckTunnelInWay(tile, z*8))
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return_cmd_error(STR_1002_EXCAVATION_WOULD_DAMAGE);
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}
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}
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if (flags & DC_EXEC) {
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/* Clear the landscape at the tiles */
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{
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int count;
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TileIndex *ti = ts.tile_table;
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for (count = ts.tile_table_count; count != 0; count--, ti++) {
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DoCommandByTile(*ti, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
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}
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}
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/* change the height */
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{
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int count;
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TerraformerHeightMod *mod;
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mod = ts.modheight;
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for (count = ts.modheight_count; count != 0; count--, mod++) {
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TileIndex til = mod->tile;
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SetTileHeight(til, mod->height);
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TerraformAddDirtyTileAround(&ts, til);
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}
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}
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/* finally mark the dirty tiles dirty */
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{
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int count;
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TileIndex *ti = ts.tile_table;
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for (count = ts.tile_table_count; count != 0; count--, ti++) {
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MarkTileDirtyByTile(*ti);
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}
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}
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}
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return ts.cost;
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}
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/** Levels a selected (rectangle) area of land
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* @param x,y end tile of area-drag
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* @param p1 start tile of area drag
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* @param p2 unused
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*/
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int32 CmdLevelLand(int ex, int ey, uint32 flags, uint32 p1, uint32 p2)
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{
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int size_x, size_y;
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int sx, sy;
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uint h, curh;
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TileIndex tile;
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int32 ret, cost, money;
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if (p1 > MapSize()) return CMD_ERROR;
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SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
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// remember level height
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h = TileHeight(p1);
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ex >>= 4; ey >>= 4;
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// make sure sx,sy are smaller than ex,ey
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sx = TileX(p1);
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sy = TileY(p1);
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if (ex < sx) intswap(ex, sx);
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if (ey < sy) intswap(ey, sy);
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tile = TileXY(sx, sy);
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size_x = ex-sx+1;
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size_y = ey-sy+1;
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money = GetAvailableMoneyForCommand();
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cost = 0;
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BEGIN_TILE_LOOP(tile2, size_x, size_y, tile) {
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curh = TileHeight(tile2);
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while (curh != h) {
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ret = DoCommandByTile(tile2, 8, (curh > h) ? 0 : 1, flags & ~DC_EXEC, CMD_TERRAFORM_LAND);
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if (CmdFailed(ret)) break;
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cost += ret;
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if (flags & DC_EXEC) {
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if ((money -= ret) < 0) {
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_additional_cash_required = ret;
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return cost - ret;
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}
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DoCommandByTile(tile2, 8, (curh > h) ? 0 : 1, flags, CMD_TERRAFORM_LAND);
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}
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curh += (curh > h) ? -1 : 1;
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}
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} END_TILE_LOOP(tile2, size_x, size_y, tile)
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return (cost == 0) ? CMD_ERROR : cost;
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}
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/** Purchase a land area. Actually you only purchase one tile, so
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* the name is a bit confusing ;p
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* @param x,y the tile the player is purchasing
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* @param p1 unused
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* @param p2 unused
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*/
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int32 CmdPurchaseLandArea(int x, int y, uint32 flags, uint32 p1, uint32 p2)
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{
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TileIndex tile;
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int32 cost;
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SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
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tile = TileVirtXY(x, y);
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if (!EnsureNoVehicle(tile)) return CMD_ERROR;
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if (IsTileType(tile, MP_UNMOVABLE) && _m[tile].m5 == 3 &&
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IsTileOwner(tile, _current_player))
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return_cmd_error(STR_5807_YOU_ALREADY_OWN_IT);
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cost = DoCommandByTile(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
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if (CmdFailed(cost)) return CMD_ERROR;
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if (flags & DC_EXEC) {
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ModifyTile(tile,
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MP_SETTYPE(MP_UNMOVABLE) | MP_MAPOWNER_CURRENT | MP_MAP5,
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3 /* map5 */
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);
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}
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return cost + _price.purchase_land * 10;
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}
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static int32 ClearTile_Clear(TileIndex tile, byte flags)
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{
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static const int32 * _clear_price_table[] = {
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NULL,
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&_price.clear_1, &_price.clear_1,&_price.clear_1,
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&_price.purchase_land,&_price.purchase_land,&_price.purchase_land,&_price.purchase_land,
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&_price.clear_2,&_price.clear_2,&_price.clear_2,&_price.clear_2,
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&_price.clear_3,&_price.clear_3,&_price.clear_3,&_price.clear_3,
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&_price.purchase_land,&_price.purchase_land,&_price.purchase_land,&_price.purchase_land,
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&_price.purchase_land,&_price.purchase_land,&_price.purchase_land,&_price.purchase_land,
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&_price.clear_2,&_price.clear_2,&_price.clear_2,&_price.clear_2,
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};
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const int32 *price = _clear_price_table[_m[tile].m5 & 0x1F];
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if (flags & DC_EXEC)
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DoClearSquare(tile);
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if (price == NULL)
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return 0;
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return *price;
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}
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/** Sell a land area. Actually you only sell one tile, so
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* the name is a bit confusing ;p
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* @param x,y the tile the player is selling
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* @param p1 unused
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* @param p2 unused
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*/
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int32 CmdSellLandArea(int x, int y, uint32 flags, uint32 p1, uint32 p2)
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{
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TileIndex tile;
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SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
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tile = TileVirtXY(x, y);
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if (!IsTileType(tile, MP_UNMOVABLE) || _m[tile].m5 != 3) return CMD_ERROR;
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if (!CheckTileOwnership(tile) && _current_player != OWNER_WATER) return CMD_ERROR;
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if (!EnsureNoVehicle(tile)) return CMD_ERROR;
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if (flags & DC_EXEC)
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DoClearSquare(tile);
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return - _price.purchase_land * 2;
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}
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#include "table/clear_land.h"
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void DrawClearLandTile(TileInfo *ti, byte set)
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{
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DrawGroundSprite(0xF54 + _tileh_to_sprite[ti->tileh] + set * 19);
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}
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void DrawHillyLandTile(TileInfo *ti)
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{
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if (ti->tileh != 0) {
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DrawGroundSprite(0xFA0 + _tileh_to_sprite[ti->tileh]);
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} else {
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DrawGroundSprite(_landscape_clear_sprites[GB(ti->x ^ ti->y, 4, 3)]);
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}
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}
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void DrawClearLandFence(TileInfo *ti, byte img)
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{
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byte z = ti->z;
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if (ti->tileh & 2) {
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z += 8;
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if (ti->tileh == 0x17)
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z += 8;
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}
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if (img & 0x38) {
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DrawGroundSpriteAt(_clear_land_fence_sprites_1[GB(img, 3, 3) - 1] + _fence_mod_by_tileh[ti->tileh], ti->x, ti->y, z);
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}
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if (img & 0x7) {
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DrawGroundSpriteAt(_clear_land_fence_sprites_1[GB(img, 0, 3) - 1] + _fence_mod_by_tileh_2[ti->tileh], ti->x, ti->y, z);
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}
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}
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static void DrawTile_Clear(TileInfo *ti)
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{
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switch((ti->map5 & (7<<2)) >> 2) {
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case 0:
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DrawClearLandTile(ti, (ti->map5 & 3));
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break;
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case 1:
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DrawHillyLandTile(ti);
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break;
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case 2:
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DrawGroundSprite(0xFB7 + _tileh_to_sprite[ti->tileh]);
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break;
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case 3:
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DrawGroundSprite( _clear_land_sprites_1[_m[ti->tile].m3&0xF] + _tileh_to_sprite[ti->tileh]);
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break;
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case 4:
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DrawGroundSprite( _clear_land_sprites_2[ti->map5&3] + _tileh_to_sprite[ti->tileh]);
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break;
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case 5:
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DrawGroundSprite( _clear_land_sprites_3[ti->map5&3] + _tileh_to_sprite[ti->tileh]);
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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 = (GB(Random(), 0, 8) > 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)
|
|
{
|
|
uint i;
|
|
TileIndex tile;
|
|
|
|
/* add hills */
|
|
i = ScaleByMapSize((Random() & 0x3FF) + 0x400);
|
|
do {
|
|
tile = RandomTile();
|
|
if (IsTileType(tile, MP_CLEAR)) SB(_m[tile].m5, 2, 2, 1);
|
|
} while (--i);
|
|
|
|
/* add grey squares */
|
|
i = ScaleByMapSize((Random() & 0x7F) + 0x80);
|
|
do {
|
|
uint32 r = Random();
|
|
tile = RandomTileSeed(r);
|
|
if (IsTileType(tile, MP_CLEAR)) {
|
|
uint j = GB(r, 16, 4) + 5;
|
|
for(;;) {
|
|
TileIndex tile_new;
|
|
|
|
SB(_m[tile].m5, 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 */
|
|
};
|