truelight@0: #include "stdafx.h"
truelight@0: #include "ttd.h"
tron@507: #include "table/strings.h"
tron@679: #include "map.h"
truelight@0: #include "viewport.h"
truelight@0: #include "command.h"
truelight@0: #include "town.h"
tron@337: #include "sound.h"
truelight@0: 
truelight@0: static int GetRandomTreeType(uint tile, uint seed)
truelight@0: {
truelight@0: 	byte i;
truelight@0: 
truelight@0: 	if (_opt.landscape == LT_NORMAL) {
truelight@0: 		return seed * 12 >> 8;
truelight@0: 	} else if (_opt.landscape == LT_HILLY) {
truelight@0: 		return (seed >> 5) + 12;
truelight@0: 	} else if (_opt.landscape == LT_DESERT) {
truelight@0: 		i = GetMapExtraBits(tile);
truelight@0: 		if (i == 0) {
truelight@0: 			return (seed >> 6) + 28;
truelight@0: 		} else if (i == 1) {
truelight@0: 			if (seed > 12)
truelight@193: 				return -1;
truelight@0: 			return 27;
truelight@0: 		} else {
truelight@0: 			return (seed * 7 >> 8) + 20;
truelight@0: 		}
truelight@0: 	} else {
truelight@0: 		return (seed * 9 >> 8) + 32;
truelight@0: 	}
truelight@0: }
truelight@0: 
truelight@0: static void PlaceTree(uint tile, uint32 r, byte m5_or)
truelight@0: {
truelight@0: 	int tree = GetRandomTreeType(tile, (r >> 24));
truelight@0: 	byte m5;
truelight@0: 
truelight@0: 	if (tree >= 0) {
truelight@0: 		m5 = (byte)(r >> 16);
tron@407: 		if ((m5 & 0x7) == 7) m5--; // there is no growth state 7
truelight@0: 
truelight@0: 		_map5[tile] = m5 & 0x07;	// growth state;
truelight@0: 		_map5[tile] |=  m5 & 0xC0;	// amount of trees
truelight@0: 
truelight@0: 		_map3_lo[tile] = tree;		// set type of tree
truelight@0: 		_map3_hi[tile] = 0;		// no hedge
truelight@0: 
truelight@0: 		// above snowline?
truelight@0: 		if( (_opt.landscape == LT_HILLY) && (GetTileZ(tile) - _opt.snow_line > 0) )
truelight@0: 		{
truelight@0: 			_map2[tile] = 0xE0;	// set land type to snow
truelight@0: 			_map2[tile] |= (byte)(r >> 24)&0x07; // randomize counter
truelight@0: 		}
truelight@0: 		else
truelight@0: 		{
truelight@0: 			_map2[tile] = (byte)(r >> 24)&0x1F; // randomize counter and ground
truelight@0: 		}
truelight@0: 
truelight@0: 
truelight@0: 		// make it tree class
truelight@0: 		_map_type_and_height[tile] |= MP_TREES << 4;
truelight@0: 	}
truelight@0: }
truelight@0: 
truelight@0: static void DoPlaceMoreTrees(uint tile)
truelight@0: {
truelight@0: 	int i = 1000;
truelight@0: 	int x,y;
truelight@0: 	uint cur_tile;
truelight@0: 	int dist;
truelight@0: 
truelight@0: 	do {
truelight@0: 		uint32 r = Random();
truelight@0: 		x = (r & 0x1F) - 16;
truelight@0: 		y = ((r>>8) & 0x1F) - 16;
truelight@0: 
truelight@0: 		dist = myabs(x) + myabs(y);
truelight@0: 
truelight@828: 		cur_tile = TILE_MASK(tile + TILE_XY(x,y));
truelight@0: 
truelight@828: 		/* Only on tiles within 13 squares from tile,
truelight@828: 		    on clear tiles, and NOT on farm-tiles */
truelight@828: 		if (dist <= 13 && IS_TILETYPE(cur_tile, MP_CLEAR) && (_map5[tile] & 0x1F) != 0x0F) {
truelight@0: 			PlaceTree(cur_tile, r, dist <= 6 ? 0xC0 : 0);
truelight@0: 		}
truelight@0: 	} while (--i);
truelight@0: }
truelight@0: 
truelight@0: static void PlaceMoreTrees()
truelight@0: {
truelight@0: 	int i = (Random() & 0x1F) + 25;
truelight@0: 	do {
truelight@0: 		DoPlaceMoreTrees(TILE_MASK(Random()));
truelight@0: 	} while (--i);
truelight@0: }
truelight@0: 
truelight@0: void PlaceTreesRandomly()
truelight@0: {
truelight@0: 	int i;
truelight@0: 	uint32 r;
truelight@0: 	uint tile;
truelight@0: 
truelight@0: 	i = 1000;
truelight@0: 	do {
truelight@0: 		r = Random();
truelight@0: 		tile = TILE_MASK(r);
truelight@828: 		/* Only on clear tiles, and NOT on farm-tiles */
truelight@828: 		if (IS_TILETYPE(tile, MP_CLEAR) && (_map5[tile] & 0x1F) != 0x0F) {
truelight@0: 			PlaceTree(tile, r, 0);
truelight@0: 		}
truelight@0: 	} while (--i);
truelight@0: 
truelight@0: 	/* place extra trees at rainforest area */
truelight@0: 	if (_opt.landscape == LT_DESERT) {
truelight@0: 		i = 15000;
truelight@0: 
truelight@0: 		do {
truelight@0: 			r = Random();
truelight@0: 			tile = TILE_MASK(r);
truelight@0: 			if (IS_TILETYPE(tile, MP_CLEAR) && GetMapExtraBits(tile) == 2) {
truelight@0: 				PlaceTree(tile, r, 0);
truelight@0: 			}
truelight@0: 		} while (--i);
truelight@0: 	}
truelight@0: }
truelight@0: 
truelight@0: void GenerateTrees()
truelight@0: {
truelight@0: 	int i;
truelight@0: 
truelight@0: 	if (_opt.landscape != LT_CANDY) {
truelight@0: 		PlaceMoreTrees();
truelight@0: 	}
truelight@0: 
truelight@0: 	i = _opt.landscape == LT_HILLY ? 15 : 6;
truelight@0: 	do {
truelight@0: 		PlaceTreesRandomly();
truelight@0: 	} while (--i);
truelight@0: }
truelight@0: 
truelight@0: /* Plant a tree
truelight@0:  * p1 = tree type, -1 means random.
truelight@0:  * p2 = end tile
truelight@0:  */
truelight@0: 
truelight@0: int32 CmdPlantTree(int ex, int ey, uint32 flags, uint32 p1, uint32 p2)
truelight@0: {
truelight@0: 	TileInfo ti;
truelight@0: 	int32 cost;
truelight@0: 	int sx,sy,x,y;
truelight@0: 	int treetype;
truelight@193: 
truelight@0: 	SET_EXPENSES_TYPE(EXPENSES_OTHER);
truelight@0: 
truelight@0: 	// make sure sx,sy are smaller than ex,ey
truelight@0: 	sx = GET_TILE_X(p2)*16;
truelight@0: 	sy = GET_TILE_Y(p2)*16;
truelight@0: 	if (ex < sx) intswap(ex, sx);
truelight@0: 	if (ey < sy) intswap(ey, sy);
truelight@193: 
truelight@0: 	cost = 0; // total cost
truelight@0: 
truelight@0: 	for(x=sx; x<=ex; x+=16) {
truelight@0: 		for(y=sy; y<=ey; y+=16) {
truelight@0: 			FindLandscapeHeight(&ti, x, y);
truelight@0: 			if (!EnsureNoVehicle(ti.tile))
truelight@0: 				continue;
truelight@0: 
truelight@0: 			if (ti.type == MP_TREES) {
truelight@0: 				// no more space for trees?
truelight@0: 				if (_game_mode != GM_EDITOR && (ti.map5 & 0xC0) == 0xC0) {
truelight@0: 					_error_message = STR_2803_TREE_ALREADY_HERE;
truelight@0: 					continue;
truelight@0: 				}
truelight@0: 
truelight@0: 				if (flags & DC_EXEC) {
truelight@0: 					_map5[ti.tile] = ti.map5 + 0x40;
truelight@0: 					MarkTileDirtyByTile(ti.tile);
truelight@0: 				}
truelight@0: 				// 2x as expensive to add more trees to an existing tile
truelight@0: 				cost += _price.build_trees * 2;
truelight@193: 			} else {
darkvater@872: 				if (ti.type != MP_CLEAR || _map_owner[ti.tile] != OWNER_NONE) {
truelight@0: 					_error_message = STR_2804_SITE_UNSUITABLE;
truelight@0: 					continue;
truelight@0: 				}
truelight@0: 
truelight@0: 				// it's expensive to clear farmland
truelight@0: 				if ((ti.map5 & 0x1F) == 0xF) cost += _price.clear_3;
darkvater@872: 				else if ((ti.map5 & 0x1C) == 8) cost += _price.clear_2;
truelight@0: 
truelight@0: 				if (flags & DC_EXEC) {
truelight@0: 					int m2;
truelight@0: 
truelight@0: 					if (_game_mode != GM_EDITOR && _current_player < MAX_PLAYERS) {
truelight@0: 						Town *t = ClosestTownFromTile(ti.tile, _patches.dist_local_authority);
truelight@0: 						if (t != NULL)
truelight@0: 							ChangeTownRating(t, 7, 220);
truelight@0: 					}
truelight@0: 					m2 = 0;
truelight@0: 					if ( (ti.map5 & 0x1C) == 4 ) {
truelight@0: 						m2 = 16;
truelight@0: 					} else if ( (ti.map5 & 0x1C) == 16 ) {
darkvater@866: 						m2 = ((ti.map5 & 3) << 6) | 0x20;
truelight@0: 					}
truelight@0: 
truelight@0: 					treetype = p1;
truelight@0: 					if (treetype == -1) {
truelight@0: 						treetype = GetRandomTreeType(ti.tile, Random()>>24);
truelight@0: 						if (treetype==-1) treetype=27;
truelight@0: 					}
truelight@193: 
truelight@0: 					ModifyTile(ti.tile,
truelight@193: 						MP_SETTYPE(MP_TREES) |
truelight@0: 						MP_MAP2 | MP_MAP3LO | MP_MAP3HI_CLEAR | MP_MAP5,
truelight@0: 						m2, /* map2 */
truelight@0: 						treetype, /* map3lo */
truelight@0: 			 			_game_mode == GM_EDITOR ? 3 : 0 /* map5 */
truelight@0: 					);
truelight@0: 
truelight@0: 					if (_game_mode == GM_EDITOR && IS_BYTE_INSIDE(treetype, 0x14, 0x1B)) {
truelight@0: 						SetMapExtraBits(ti.tile, 2);
truelight@0: 					}
truelight@0: 				}
truelight@0: 				cost += _price.build_trees;
truelight@0: 			}
truelight@0: 		}
truelight@0: 	}
truelight@193: 
truelight@0: 	if (cost == 0) return CMD_ERROR;
truelight@0: 	return cost;
truelight@0: }
truelight@0: 
truelight@0: typedef struct TreeListEnt {
truelight@0: 	uint32 image;
truelight@0: 	byte x,y;
truelight@0: } TreeListEnt;
truelight@0: 
truelight@0: 
truelight@0: #include "table/tree_land.h"
truelight@0: 
truelight@0: 
truelight@0: static void DrawTile_Trees(TileInfo *ti)
truelight@0: {
truelight@817: 	uint16 m2;
truelight@0: 	const uint32 *s;
truelight@0: 	const byte *d;
truelight@0: 	byte z;
truelight@0: 	TreeListEnt te[4];
truelight@0: 
truelight@0: 	m2 = _map2[ti->tile];
truelight@0: 
truelight@0: 	if ( (m2&0x30) == 0) {
truelight@0: 		DrawClearLandTile(ti, 3);
truelight@0: 	} else if ((m2&0x30) == 0x20) {
truelight@0: 		DrawGroundSprite(_tree_sprites_1[m2 >> 6] + _tileh_to_sprite[ti->tileh]);
truelight@0: 	} else {
truelight@0: 		DrawHillyLandTile(ti);
truelight@0: 	}
truelight@0: 
truelight@0: 	DrawClearLandFence(ti, _map3_hi[ti->tile] >> 2);
truelight@0: 
truelight@0: 	z = ti->z;
truelight@0: 	if (ti->tileh != 0) {
truelight@0: 		z += 4;
truelight@0: 		if (ti->tileh & 0x10)
truelight@0: 			z += 4;
truelight@0: 	}
truelight@0: 
truelight@0: 	{
truelight@0: 		uint16 tmp = ti->x;
truelight@0: 		int index;
truelight@0: 
truelight@0: 		tmp = (tmp >> 2) | (tmp << 14);
truelight@0: 		tmp -= ti->y;
truelight@0: 		tmp = (tmp >> 3) | (tmp << 13);
truelight@0: 		tmp -= ti->x;
truelight@0: 		tmp = (tmp >> 1) | (tmp << 15);
truelight@0: 		tmp += ti->y;
truelight@0: 
truelight@0: 		d = _tree_layout_xy[(tmp & 0x30) >> 4];
truelight@0: 
truelight@0: 		index = ((tmp>>6)&3) + (_map3_lo[ti->tile]<<2);
truelight@193: 
truelight@0: 		/* different tree styles above one of the grounds */
truelight@0: 		if ((m2 & 0xB0) == 0xA0 && index >= 48 && index < 80)
truelight@0: 			index += 164 - 48;
truelight@193: 
truelight@193: 		assert(index < lengthof(_tree_layout_sprite));
truelight@0: 		s = _tree_layout_sprite[index];
truelight@0: 	}
truelight@0: 
truelight@0: 	StartSpriteCombine();
truelight@0: 
tron@497: 	if (!(_display_opt & DO_TRANS_BUILDINGS) || !_patches.invisible_trees)
truelight@0: 	{
truelight@0: 		int i;
truelight@0: 
truelight@0: 		/* put the trees to draw in a list */
truelight@0: 		i = (ti->map5 >> 6) + 1;
truelight@0: 		do {
truelight@0: 			uint32 image = s[0] + (--i==0 ? (ti->map5 & 7) : 3);
tron@497: 			if (_display_opt & DO_TRANS_BUILDINGS)
truelight@0: 				image = (image & 0x3FFF) | 0x3224000;
truelight@0: 			te[i].image = image;
truelight@0: 			te[i].x = d[0];
truelight@0: 			te[i].y = d[1];
truelight@0: 			s++;
truelight@0: 			d+=2;
truelight@0: 		} while (i);
truelight@0: 
truelight@0: 		/* draw them in a sorted way */
truelight@0: 		for(;;) {
truelight@0: 			byte min = 0xFF;
truelight@0: 			TreeListEnt *tep = NULL;
truelight@0: 
truelight@0: 			i = (ti->map5 >> 6) + 1;
truelight@0: 			do {
truelight@0: 				if (te[--i].image!=0 && (byte)(te[i].x + te[i].y) < min) {
truelight@0: 					min = te[i].x + te[i].y;
truelight@0: 					tep = &te[i];
truelight@0: 				}
truelight@0: 			} while (i);
truelight@0: 
truelight@0: 			if (tep == NULL)
truelight@0: 				break;
truelight@0: 
truelight@0: 			AddSortableSpriteToDraw(tep->image, ti->x + tep->x, ti->y + tep->y, 5, 5, 0x10, z);
truelight@0: 			tep->image = 0;
truelight@0: 		}
truelight@0: 	}
truelight@0: 
truelight@0: 	EndSpriteCombine();
truelight@0: }
truelight@0: 
truelight@0: 
truelight@0: static uint GetSlopeZ_Trees(TileInfo *ti) {
truelight@0: 	return GetPartialZ(ti->x&0xF, ti->y&0xF, ti->tileh) + ti->z;
truelight@0: }
truelight@0: 
dominik@39: static uint GetSlopeTileh_Trees(TileInfo *ti) {
dominik@39: 	return ti->tileh;
dominik@39: }
dominik@39: 
truelight@0: static int32 ClearTile_Trees(uint tile, byte flags) {
truelight@0: 	int num;
truelight@0: 
truelight@0: 	if (flags & DC_EXEC && _current_player < MAX_PLAYERS) {
truelight@0: 		Town *t = ClosestTownFromTile(tile, _patches.dist_local_authority);
truelight@193: 		if (t != NULL)
truelight@0: 			ChangeTownRating(t, -35, -1000);
truelight@0: 	}
truelight@0: 
truelight@0: 	num = (_map5[tile] >> 6) + 1;
truelight@0: 	if ( (byte)(_map3_lo[tile]-0x14) <= (0x1A-0x14))
truelight@0: 		num <<= 2;
truelight@0: 
truelight@0: 	if (flags & DC_EXEC)
truelight@0: 		DoClearSquare(tile);
truelight@0: 
truelight@0: 	return num * _price.remove_trees;
truelight@0: }
truelight@0: 
tron@473: static void GetAcceptedCargo_Trees(uint tile, AcceptedCargo ac)
truelight@0: {
truelight@0: 	/* not used */
truelight@0: }
truelight@0: 
truelight@0: static void GetTileDesc_Trees(uint tile, TileDesc *td)
truelight@0: {
truelight@0: 	byte b;
truelight@0: 	StringID str;
truelight@0: 
truelight@0: 	td->owner = _map_owner[tile];
truelight@0: 
truelight@0: 	b = _map3_lo[tile];
truelight@0: 	(str=STR_2810_CACTUS_PLANTS, b==0x1B) ||
truelight@0: 	(str=STR_280F_RAINFOREST, IS_BYTE_INSIDE(b, 0x14, 0x1A+1)) ||
truelight@0: 	(str=STR_280E_TREES, true);
truelight@193: 	td->str = str;
truelight@0: }
truelight@0: 
truelight@0: static void AnimateTile_Trees(uint tile)
truelight@0: {
truelight@0: 	/* not used */
truelight@0: }
truelight@0: 
tron@541: static SoundFx _desert_sounds[] = {
tron@541: 	SND_42_LOON_BIRD,
tron@541: 	SND_43_LION,
tron@541: 	SND_44_MONKEYS,
tron@541: 	SND_48_DISTANT_BIRD
truelight@0: };
truelight@0: 
truelight@0: static void TileLoopTreesDesert(uint tile)
truelight@0: {
truelight@0: 	byte b;
truelight@0: 
truelight@0: 	if ((b=GetMapExtraBits(tile)) == 2) {
truelight@0: 		uint32 r;
truelight@0: 
truelight@0: 		if (CHANCE16I(1,200,r=Random())) {
truelight@0: 			SndPlayTileFx(_desert_sounds[(r >> 16) & 3], tile);
truelight@0: 		}
truelight@0: 	} else if (b == 1) {
truelight@0: 		if ((_map2[tile] & 0x30) != 0x20) {
truelight@0: 			_map2[tile] &= 0xF;
truelight@0: 			_map2[tile] |= 0xE0;
truelight@0: 			MarkTileDirtyByTile(tile);
truelight@0: 		}
truelight@0: 	}
truelight@0: }
truelight@0: 
truelight@0: static void TileLoopTreesAlps(uint tile)
truelight@0: {
truelight@0: 	byte tmp, m2;
truelight@0: 	int k;
truelight@0: 
truelight@0: 	/* distance from snow line, in steps of 8 */
truelight@0: 	k = GetTileZ(tile) - _opt.snow_line;
truelight@0: 
truelight@0: 	tmp = _map5[tile] & 0xF0;
truelight@0: 
truelight@0: 	if (k < -8) {
truelight@0: 		/* snow_m2_down */
truelight@0: 		if ((tmp&0x30) != 0x20)
truelight@0: 			return;
truelight@0: 		m2 = 0;
truelight@0: 	} else if (k == -8) {
truelight@0: 		/* snow_m1 */
truelight@193: 		m2 = 0x20;
truelight@0: 		if (tmp == m2)
truelight@0: 			return;
truelight@0: 	} else if (k < 8) {
truelight@0: 		/* snow_0 */
truelight@0: 		m2 = 0x60;
truelight@0: 		if (tmp == m2)
truelight@0: 			return;
truelight@0: 	} else if (k == 8) {
truelight@0: 		/* snow_p1 */
truelight@0: 		m2 = 0xA0;
truelight@0: 		if (tmp == m2)
truelight@0: 			return;
truelight@0: 	} else {
truelight@0: 		/* snow_p2_up */
truelight@0: 		if (tmp == 0xC0) {
truelight@0: 			uint32 r;
truelight@0: 			if (CHANCE16I(1,200,r=Random())) {
tron@541: 				SndPlayTileFx((r & 0x80000000) ? SND_39_HEAVY_WIND : SND_34_WIND, tile);
truelight@0: 			}
truelight@0: 			return;
truelight@0: 		} else {
truelight@0: 			m2 = 0xE0;
truelight@0: 		}
truelight@0: 	}
truelight@0: 
truelight@0: 	_map2[tile] &= 0xF;
truelight@0: 	_map2[tile] |= m2;
truelight@0: 	MarkTileDirtyByTile(tile);
truelight@0: }
truelight@0: 
truelight@0: static void TileLoop_Trees(uint tile)
truelight@0: {
truelight@817: 	byte m5;
truelight@817: 	uint16 m2;
truelight@0: 
truelight@0: 	static const TileIndexDiff _tileloop_trees_dir[] = {
truelight@0: 		TILE_XY(-1,-1),
truelight@0: 		TILE_XY(0,-1),
truelight@0: 		TILE_XY(1,-1),
truelight@0: 		TILE_XY(-1,0),
truelight@0: 		TILE_XY(1,0),
truelight@0: 		TILE_XY(-1,1),
truelight@0: 		TILE_XY(0,1),
truelight@0: 		TILE_XY(1,1),
truelight@0: 	};
truelight@0: 
truelight@0: 	if (_opt.landscape == LT_DESERT) {
truelight@0: 		TileLoopTreesDesert(tile);
truelight@0: 	} else if (_opt.landscape == LT_HILLY) {
truelight@0: 		TileLoopTreesAlps(tile);
truelight@0: 	}
truelight@0: 
truelight@0: 	TileLoopClearHelper(tile);
truelight@0: 
truelight@0: 	/* increase counter */
truelight@0: 	{
truelight@817: 		uint16 m2 = _map2[tile];
truelight@0: 		_map2[tile] = m2 = (m2 & 0xF0) | ((m2+1)&0xF);
truelight@0: 		if (m2 & 0xF)
truelight@0: 			return;
truelight@0: 	}
truelight@0: 
truelight@0: 	m5 = _map5[tile];
truelight@0: 	if ((m5&7) == 3) {
truelight@0: 		/* regular sized tree */
truelight@0: 		if (_opt.landscape == LT_DESERT && _map3_lo[tile]!=0x1B && GetMapExtraBits(tile)==1) {
truelight@0: 			m5++; /* start destructing */
truelight@0: 		} else {
truelight@0: 			switch(Random() & 0x7) {
truelight@0: 			case 0: /* start destructing */
truelight@0: 				m5++;
truelight@0: 				break;
truelight@193: 
truelight@0: 			case 1: /* add a tree */
truelight@0: 				if (m5 < 0xC0) {
truelight@0: 					m5 = (m5 + 0x40) & ~7;
truelight@0: 					break;
truelight@0: 				}
truelight@0: 				/* fall through */
truelight@0: 
truelight@0: 			case 2: { /* add a neighbouring tree */
truelight@0: 				byte m3 = _map3_lo[tile];
truelight@193: 
truelight@0: 				tile += _tileloop_trees_dir[Random() & 7];
truelight@0: 
truelight@0: 				if (!IS_TILETYPE(tile, MP_CLEAR))
truelight@0: 					return;
truelight@0: 
truelight@0: 				if ( (_map5[tile] & 0x1C) == 4) {
truelight@0: 					_map2[tile] = 0x10;
truelight@0: 				} else if ((_map5[tile] & 0x1C) == 16) {
tron@864: 					_map2[tile] = ((_map5[tile] & 3) << 6) | 0x20;
truelight@0: 				} else {
truelight@0: 					if ((_map5[tile] & 0x1F) != 3)
truelight@0: 						return;
truelight@0: 					_map2[tile] = 0;
truelight@0: 				}
truelight@0: 
truelight@0: 				_map3_lo[tile] = m3;
truelight@0: 				_map3_hi[tile] = 0;
truelight@0: 				_map_type_and_height[tile] &= 0xF;
truelight@0: 				_map_type_and_height[tile] |= MP_TREES << 4;
truelight@0: 
truelight@0: 				m5 = 0;
truelight@0: 				break;
truelight@193: 			}
truelight@0: 
truelight@0: 			default:
truelight@0: 				return;
truelight@0: 			}
truelight@0: 		}
truelight@0: 	} else if ((m5&7) == 6) {
truelight@0: 		/* final stage of tree destruction */
truelight@0: 		if (m5 & 0xC0) {
truelight@0: 			/* more than one tree, delete it? */
truelight@0: 			m5 = ((m5 - 6) - 0x40) + 3;
truelight@0: 		} else {
truelight@0: 			/* just one tree, change type into MP_CLEAR */
truelight@0: 			_map_type_and_height[tile] = (_map_type_and_height[tile]&~0xF0) | (MP_CLEAR<<4);
truelight@0: 
truelight@0: 			m5 = 3;
truelight@0: 			m2 = _map2[tile];
truelight@0: 			if ((m2&0x30) != 0) {
truelight@0: 				m5 = (m2 >> 6) | 0x10;
truelight@0: 				if (m2 != 0x20)
truelight@0: 					m5 = 7;
truelight@0: 			}
truelight@0: 			_map_owner[tile] = OWNER_NONE;
truelight@0: 		}
truelight@0: 	} else {
truelight@0: 		/* in the middle of a transition, change to next */
truelight@0: 		m5++;
truelight@0: 	}
truelight@0: 
truelight@0: 	_map5[tile] = m5;
truelight@0: 	MarkTileDirtyByTile(tile);
truelight@0: }
truelight@0: 
truelight@0: void OnTick_Trees()
truelight@0: {
truelight@0: 	uint32 r;
truelight@0: 	uint tile;
truelight@0: 	byte m;
truelight@0: 	int tree;
truelight@0: 
truelight@0: 	/* place a tree at a random rainforest spot */
truelight@193: 	if (_opt.landscape == LT_DESERT &&
truelight@0: 			(r=Random(),tile=TILE_MASK(r),GetMapExtraBits(tile)==2) &&
truelight@0: 			IS_TILETYPE(tile, MP_CLEAR) &&
truelight@0: 			(m=_map5[tile]&0x1C, m<=4) &&
truelight@0: 			(tree=GetRandomTreeType(tile, r>>24)) >= 0) {
truelight@193: 
truelight@0: 		ModifyTile(tile,
truelight@193: 			MP_SETTYPE(MP_TREES) |
truelight@0: 			MP_MAP2 | MP_MAP3LO | MP_MAP3HI | MP_MAP5,
truelight@0: 			(m == 4 ? 0x10 : 0),
truelight@0: 			tree,
truelight@0: 			_map3_hi[tile] & ~3,
truelight@0: 			0
truelight@0: 		);
truelight@0: 	}
truelight@0: 
truelight@0: 	// byte underflow
truelight@0: 	if (--_trees_tick_ctr)
truelight@0: 		return;
truelight@193: 
truelight@0: 	/* place a tree at a random spot */
truelight@0: 	r = Random();
truelight@0: 	tile = TILE_MASK(r);
truelight@0: 	if (IS_TILETYPE(tile, MP_CLEAR) &&
truelight@0: 			(m=_map5[tile]&0x1C, m==0 || m==4 || m==0x10) &&
truelight@0: 			(tree=GetRandomTreeType(tile, r>>24)) >= 0) {
truelight@0: 		int m2;
truelight@193: 
truelight@0: 		if (m == 0) {
truelight@0: 			m2 = 0;
truelight@0: 		} else if (m == 4) {
truelight@0: 			m2 = 0x10;
truelight@0: 		} else {
darkvater@866: 			m2 = ((_map5[tile] & 3) << 6) | 0x20;
truelight@0: 		}
truelight@0: 
truelight@0: 		ModifyTile(tile,
truelight@193: 			MP_SETTYPE(MP_TREES) |
truelight@0: 			MP_MAP2 | MP_MAP3LO | MP_MAP3HI | MP_MAP5,
truelight@0: 			m2,
truelight@0: 			tree,
truelight@0: 			_map3_hi[tile] & ~3,
truelight@0: 			0
truelight@0: 		);
truelight@0: 	}
truelight@0: }
truelight@0: 
truelight@0: static void ClickTile_Trees(uint tile)
truelight@0: {
truelight@0: 	/* not used */
truelight@0: }
truelight@0: 
darkvater@160: static uint32 GetTileTrackStatus_Trees(uint tile, TransportType mode)
truelight@0: {
truelight@0: 	return 0;
truelight@0: }
truelight@0: 
truelight@0: static void ChangeTileOwner_Trees(uint tile, byte old_player, byte new_player)
truelight@0: {
truelight@0: 	/* not used */
truelight@0: }
truelight@0: 
truelight@0: void InitializeTrees()
truelight@0: {
truelight@0: 	memset(_sign_list, 0, sizeof(_sign_list));
truelight@0: 	_trees_tick_ctr = 0;
truelight@0: }
truelight@0: 
truelight@0: 
truelight@0: const TileTypeProcs _tile_type_trees_procs = {
truelight@0: 	DrawTile_Trees,						/* draw_tile_proc */
truelight@0: 	GetSlopeZ_Trees,					/* get_slope_z_proc */
truelight@0: 	ClearTile_Trees,					/* clear_tile_proc */
truelight@0: 	GetAcceptedCargo_Trees,		/* get_accepted_cargo_proc */
truelight@0: 	GetTileDesc_Trees,				/* get_tile_desc_proc */
truelight@0: 	GetTileTrackStatus_Trees,	/* get_tile_track_status_proc */
truelight@0: 	ClickTile_Trees,					/* click_tile_proc */
truelight@0: 	AnimateTile_Trees,				/* animate_tile_proc */
truelight@0: 	TileLoop_Trees,						/* tile_loop_clear */
truelight@0: 	ChangeTileOwner_Trees,		/* change_tile_owner_clear */
truelight@0: 	NULL,											/* get_produced_cargo_proc */
truelight@0: 	NULL,											/* vehicle_enter_tile_proc */
truelight@0: 	NULL,											/* vehicle_leave_tile_proc */
dominik@39: 	GetSlopeTileh_Trees,			/* get_slope_tileh_proc */
truelight@0: };