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authorrubidium <rubidium@openttd.org>2007-01-02 19:19:48 +0000
committerrubidium <rubidium@openttd.org>2007-01-02 19:19:48 +0000
commit66bbf336c6af7353ef0aeed58002c46543b30635 (patch)
treead4a63860df2626b22f77e7dac712e958bea54cb /src/tree_cmd.c
parentccc0a3f4dbf58c005b22341ac8874252924690cd (diff)
downloadopenttd-66bbf336c6af7353ef0aeed58002c46543b30635.tar.xz
(svn r7759) -Merge: makefile rewrite. This merge features:
- A proper ./configure, so everything needs to be configured only once, not for every make. - Usage of makedepend when available. This greatly reduces the time needed for generating the dependencies. - A generator for all project files. There is a single file with sources, which is used to generate Makefiles and the project files for MSVC. - Proper support for OSX universal binaries. - Object files for non-MSVC compiles are also placed in separate directories, making is faster to switch between debug and release compiles and it does not touch the directory with the source files. - Functionality to make a bundle of all needed files for for example a nightly or distribution of a binary with all needed GRFs and language files. Note: as this merge moves almost all files, it is recommended to make a backup of your working copy before updating your working copy.
Diffstat (limited to 'src/tree_cmd.c')
-rw-r--r--src/tree_cmd.c672
1 files changed, 672 insertions, 0 deletions
diff --git a/src/tree_cmd.c b/src/tree_cmd.c
new file mode 100644
index 000000000..ccdbcfbad
--- /dev/null
+++ b/src/tree_cmd.c
@@ -0,0 +1,672 @@
+/* $Id$ */
+
+#include "stdafx.h"
+#include "openttd.h"
+#include "bridge_map.h"
+#include "clear_map.h"
+#include "table/strings.h"
+#include "table/sprites.h"
+#include "table/tree_land.h"
+#include "functions.h"
+#include "map.h"
+#include "tile.h"
+#include "tree_map.h"
+#include "viewport.h"
+#include "command.h"
+#include "town.h"
+#include "sound.h"
+#include "variables.h"
+#include "genworld.h"
+
+enum TreePlacer {
+ TP_NONE,
+ TP_ORIGINAL,
+ TP_IMPROVED,
+};
+
+static TreeType GetRandomTreeType(TileIndex tile, uint seed)
+{
+ switch (_opt.landscape) {
+ case LT_NORMAL:
+ return seed * TREE_COUNT_TEMPERATE / 256 + TREE_TEMPERATE;
+
+ case LT_HILLY:
+ return seed * TREE_COUNT_SUB_ARCTIC / 256 + TREE_SUB_ARCTIC;
+
+ case LT_DESERT:
+ switch (GetTropicZone(tile)) {
+ case TROPICZONE_INVALID: return seed * TREE_COUNT_SUB_TROPICAL / 256 + TREE_SUB_TROPICAL;
+ case TROPICZONE_DESERT: return (seed > 12) ? TREE_INVALID : TREE_CACTUS;
+ default: return seed * TREE_COUNT_RAINFOREST / 256 + TREE_RAINFOREST;
+ }
+
+ default:
+ return seed * TREE_COUNT_TOYLAND / 256 + TREE_TOYLAND;
+ }
+}
+
+static void PlaceTree(TileIndex tile, uint32 r)
+{
+ TreeType tree = GetRandomTreeType(tile, GB(r, 24, 8));
+
+ if (tree != TREE_INVALID) {
+ MakeTree(tile, tree, GB(r, 22, 2), min(GB(r, 16, 3), 6), TREE_GROUND_GRASS, 0);
+
+ // above snowline?
+ if (_opt.landscape == LT_HILLY && GetTileZ(tile) > _opt.snow_line) {
+ SetTreeGroundDensity(tile, TREE_GROUND_SNOW_DESERT, 3);
+ SetTreeCounter(tile, GB(r, 24, 3));
+ } else {
+ SetTreeGroundDensity(tile, GB(r, 28, 1), 0);
+ SetTreeCounter(tile, GB(r, 24, 4));
+ }
+ }
+}
+
+static void DoPlaceMoreTrees(TileIndex tile)
+{
+ uint i;
+
+ for (i = 0; i < 1000; i++) {
+ uint32 r = Random();
+ int x = GB(r, 0, 5) - 16;
+ int y = GB(r, 8, 5) - 16;
+ uint dist = myabs(x) + myabs(y);
+ TileIndex cur_tile = TILE_MASK(tile + TileDiffXY(x, y));
+
+ if (dist <= 13 &&
+ IsTileType(cur_tile, MP_CLEAR) &&
+ !IsBridgeAbove(cur_tile) &&
+ !IsClearGround(cur_tile, CLEAR_FIELDS) &&
+ !IsClearGround(cur_tile, CLEAR_ROCKS)) {
+ PlaceTree(cur_tile, r);
+ }
+ }
+}
+
+static void PlaceMoreTrees(void)
+{
+ uint i = ScaleByMapSize(GB(Random(), 0, 5) + 25);
+ do {
+ DoPlaceMoreTrees(RandomTile());
+ } while (--i);
+}
+
+/**
+ * Place a tree at the same height as an existing tree.
+ * This gives cool effects to the map.
+ */
+void PlaceTreeAtSameHeight(TileIndex tile, uint height)
+{
+ uint i;
+
+ for (i = 0; i < 1000; i++) {
+ uint32 r = Random();
+ int x = GB(r, 0, 5) - 16;
+ int y = GB(r, 8, 5) - 16;
+ TileIndex cur_tile = TILE_MASK(tile + TileDiffXY(x, y));
+
+ /* Keep in range of the existing tree */
+ if (myabs(x) + myabs(y) > 16) continue;
+
+ /* Clear tile, no farm-tiles or rocks */
+ if (!IsTileType(cur_tile, MP_CLEAR) ||
+ IsClearGround(cur_tile, CLEAR_FIELDS) ||
+ IsClearGround(cur_tile, CLEAR_ROCKS))
+ continue;
+
+ /* Not too much height difference */
+ if (myabs(GetTileZ(cur_tile) - height) > 2) continue;
+
+ /* Place one tree and quit */
+ PlaceTree(cur_tile, r);
+ break;
+ }
+}
+
+void PlaceTreesRandomly(void)
+{
+ uint i, j, ht;
+
+ i = ScaleByMapSize(1000);
+ do {
+ uint32 r = Random();
+ TileIndex tile = RandomTileSeed(r);
+
+ IncreaseGeneratingWorldProgress(GWP_TREE);
+
+ if (IsTileType(tile, MP_CLEAR) &&
+ !IsBridgeAbove(tile) &&
+ !IsClearGround(tile, CLEAR_FIELDS) &&
+ !IsClearGround(tile, CLEAR_ROCKS)) {
+ PlaceTree(tile, r);
+ if (_patches.tree_placer != TP_IMPROVED) continue;
+
+ /* Place a number of trees based on the tile height.
+ * This gives a cool effect of multiple trees close together.
+ * It is almost real life ;) */
+ ht = GetTileZ(tile);
+ /* The higher we get, the more trees we plant */
+ j = GetTileZ(tile) / TILE_HEIGHT * 2;
+ while (j--) {
+ /* Above snowline more trees! */
+ if (_opt.landscape == LT_HILLY && ht > _opt.snow_line) {
+ PlaceTreeAtSameHeight(tile, ht);
+ PlaceTreeAtSameHeight(tile, ht);
+ };
+
+ PlaceTreeAtSameHeight(tile, ht);
+ }
+ }
+ } while (--i);
+
+ /* place extra trees at rainforest area */
+ if (_opt.landscape == LT_DESERT) {
+ i = ScaleByMapSize(15000);
+
+ do {
+ uint32 r = Random();
+ TileIndex tile = RandomTileSeed(r);
+
+ IncreaseGeneratingWorldProgress(GWP_TREE);
+
+ if (IsTileType(tile, MP_CLEAR) &&
+ !IsBridgeAbove(tile) &&
+ !IsClearGround(tile, CLEAR_FIELDS) &&
+ GetTropicZone(tile) == TROPICZONE_RAINFOREST) {
+ PlaceTree(tile, r);
+ }
+ } while (--i);
+ }
+}
+
+void GenerateTrees(void)
+{
+ uint i, total;
+
+ if (_patches.tree_placer == TP_NONE) return;
+
+ if (_opt.landscape != LT_CANDY) PlaceMoreTrees();
+
+ switch (_patches.tree_placer) {
+ case TP_ORIGINAL: i = _opt.landscape == LT_HILLY ? 15 : 6; break;
+ case TP_IMPROVED: i = _opt.landscape == LT_HILLY ? 4 : 2; break;
+ default: NOT_REACHED(); return;
+ }
+
+ total = ScaleByMapSize(1000);
+ if (_opt.landscape == LT_DESERT) total += ScaleByMapSize(15000);
+ total *= i;
+ SetGeneratingWorldProgress(GWP_TREE, total);
+
+ for (; i != 0; i--) {
+ PlaceTreesRandomly();
+ }
+}
+
+/** Plant a tree.
+ * @param tile start tile of area-drag of tree plantation
+ * @param p1 tree type, -1 means random.
+ * @param p2 end tile of area-drag
+ */
+int32 CmdPlantTree(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
+{
+ StringID msg = INVALID_STRING_ID;
+ int32 cost;
+ int ex;
+ int ey;
+ int sx, sy, x, y;
+
+ if (p2 >= MapSize()) return CMD_ERROR;
+ /* Check the tree type. It can be random or some valid value within the current climate */
+ if (p1 != (uint)-1 && p1 - _tree_base_by_landscape[_opt.landscape] >= _tree_count_by_landscape[_opt.landscape]) return CMD_ERROR;
+
+ SET_EXPENSES_TYPE(EXPENSES_OTHER);
+
+ // make sure sx,sy are smaller than ex,ey
+ ex = TileX(tile);
+ ey = TileY(tile);
+ sx = TileX(p2);
+ sy = TileY(p2);
+ if (ex < sx) intswap(ex, sx);
+ if (ey < sy) intswap(ey, sy);
+
+ cost = 0; // total cost
+
+ for (x = sx; x <= ex; x++) {
+ for (y = sy; y <= ey; y++) {
+ TileIndex tile = TileXY(x, y);
+
+ if (!EnsureNoVehicle(tile)) continue;
+
+ switch (GetTileType(tile)) {
+ case MP_TREES:
+ // no more space for trees?
+ if (_game_mode != GM_EDITOR && GetTreeCount(tile) == 3) {
+ msg = STR_2803_TREE_ALREADY_HERE;
+ continue;
+ }
+
+ if (flags & DC_EXEC) {
+ AddTreeCount(tile, 1);
+ MarkTileDirtyByTile(tile);
+ }
+ // 2x as expensive to add more trees to an existing tile
+ cost += _price.build_trees * 2;
+ break;
+
+ case MP_CLEAR:
+ if (!IsTileOwner(tile, OWNER_NONE) ||
+ IsBridgeAbove(tile)) {
+ msg = STR_2804_SITE_UNSUITABLE;
+ continue;
+ }
+
+ switch (GetClearGround(tile)) {
+ case CLEAR_FIELDS: cost += _price.clear_3; break;
+ case CLEAR_ROCKS: cost += _price.clear_2; break;
+ default: break;
+ }
+
+ if (flags & DC_EXEC) {
+ TreeType treetype;
+ uint growth;
+
+ if (_game_mode != GM_EDITOR && IsValidPlayer(_current_player)) {
+ Town *t = ClosestTownFromTile(tile, _patches.dist_local_authority);
+ if (t != NULL)
+ ChangeTownRating(t, RATING_TREE_UP_STEP, RATING_TREE_MAXIMUM);
+ }
+
+ treetype = p1;
+ if (treetype == TREE_INVALID) {
+ treetype = GetRandomTreeType(tile, GB(Random(), 24, 8));
+ if (treetype == TREE_INVALID) treetype = TREE_CACTUS;
+ }
+
+ growth = _game_mode == GM_EDITOR ? 3 : 0;
+ switch (GetClearGround(tile)) {
+ case CLEAR_ROUGH: MakeTree(tile, treetype, 0, growth, TREE_GROUND_ROUGH, 0); break;
+ case CLEAR_SNOW: MakeTree(tile, treetype, 0, growth, TREE_GROUND_SNOW_DESERT, GetClearDensity(tile)); break;
+ default: MakeTree(tile, treetype, 0, growth, TREE_GROUND_GRASS, 0); break;
+ }
+ MarkTileDirtyByTile(tile);
+
+ if (_game_mode == GM_EDITOR && IS_INT_INSIDE(treetype, TREE_RAINFOREST, TREE_CACTUS))
+ SetTropicZone(tile, TROPICZONE_RAINFOREST);
+ }
+ cost += _price.build_trees;
+ break;
+
+ default:
+ msg = STR_2804_SITE_UNSUITABLE;
+ break;
+ }
+ }
+ }
+
+ if (cost == 0) {
+ return_cmd_error(msg);
+ } else {
+ return cost;
+ }
+}
+
+typedef struct TreeListEnt {
+ uint32 image;
+ byte x,y;
+} TreeListEnt;
+
+static void DrawTile_Trees(TileInfo *ti)
+{
+ const uint32 *s;
+ const TreePos* d;
+ byte z;
+
+ switch (GetTreeGround(ti->tile)) {
+ case TREE_GROUND_GRASS: DrawClearLandTile(ti, 3); break;
+ case TREE_GROUND_ROUGH: DrawHillyLandTile(ti); break;
+ default: DrawGroundSprite(_tree_sprites_1[GetTreeDensity(ti->tile)] + _tileh_to_sprite[ti->tileh]); break;
+ }
+
+ DrawClearLandFence(ti);
+
+ z = ti->z;
+ if (ti->tileh != SLOPE_FLAT) {
+ z += 4;
+ if (IsSteepSlope(ti->tileh)) z += 4;
+ }
+
+ {
+ uint16 tmp = ti->x;
+ uint index;
+
+ tmp = ROR(tmp, 2);
+ tmp -= ti->y;
+ tmp = ROR(tmp, 3);
+ tmp -= ti->x;
+ tmp = ROR(tmp, 1);
+ tmp += ti->y;
+
+ d = _tree_layout_xy[GB(tmp, 4, 2)];
+
+ index = GB(tmp, 6, 2) + (GetTreeType(ti->tile) << 2);
+
+ /* different tree styles above one of the grounds */
+ if (GetTreeGround(ti->tile) == TREE_GROUND_SNOW_DESERT &&
+ GetTreeDensity(ti->tile) >= 2 &&
+ IS_INT_INSIDE(index, TREE_SUB_ARCTIC << 2, TREE_RAINFOREST << 2)) {
+ index += 164 - (TREE_SUB_ARCTIC << 2);
+ }
+
+ assert(index < lengthof(_tree_layout_sprite));
+ s = _tree_layout_sprite[index];
+ }
+
+ StartSpriteCombine();
+
+ if (!(_display_opt & DO_TRANS_BUILDINGS) || !_patches.invisible_trees) {
+ TreeListEnt te[4];
+ uint i;
+
+ /* put the trees to draw in a list */
+ i = GetTreeCount(ti->tile) + 1;
+ do {
+ uint32 image = s[0] + (--i == 0 ? GetTreeGrowth(ti->tile) : 3);
+ if (_display_opt & DO_TRANS_BUILDINGS) MAKE_TRANSPARENT(image);
+ te[i].image = image;
+ te[i].x = d->x;
+ te[i].y = d->y;
+ s++;
+ d++;
+ } while (i);
+
+ /* draw them in a sorted way */
+ for (;;) {
+ byte min = 0xFF;
+ TreeListEnt *tep = NULL;
+
+ i = GetTreeCount(ti->tile) + 1;
+ do {
+ if (te[--i].image != 0 && te[i].x + te[i].y < min) {
+ min = te[i].x + te[i].y;
+ tep = &te[i];
+ }
+ } while (i);
+
+ if (tep == NULL) break;
+
+ AddSortableSpriteToDraw(tep->image, ti->x + tep->x, ti->y + tep->y, 5, 5, 0x10, z);
+ tep->image = 0;
+ }
+ }
+
+ EndSpriteCombine();
+}
+
+
+static uint GetSlopeZ_Trees(TileIndex tile, uint x, uint y)
+{
+ uint z;
+ uint tileh = GetTileSlope(tile, &z);
+
+ return z + GetPartialZ(x & 0xF, y & 0xF, tileh);
+}
+
+static Slope GetSlopeTileh_Trees(TileIndex tile, Slope tileh)
+{
+ return tileh;
+}
+
+static int32 ClearTile_Trees(TileIndex tile, byte flags)
+{
+ uint num;
+
+ if ((flags & DC_EXEC) && IsValidPlayer(_current_player)) {
+ Town *t = ClosestTownFromTile(tile, _patches.dist_local_authority);
+ if (t != NULL)
+ ChangeTownRating(t, RATING_TREE_DOWN_STEP, RATING_TREE_MINIMUM);
+ }
+
+ num = GetTreeCount(tile) + 1;
+ if (IS_INT_INSIDE(GetTreeType(tile), TREE_RAINFOREST, TREE_CACTUS)) num *= 4;
+
+ if (flags & DC_EXEC) DoClearSquare(tile);
+
+ return num * _price.remove_trees;
+}
+
+static void GetAcceptedCargo_Trees(TileIndex tile, AcceptedCargo ac)
+{
+ /* not used */
+}
+
+static void GetTileDesc_Trees(TileIndex tile, TileDesc *td)
+{
+ TreeType tt = GetTreeType(tile);
+
+ if (IS_INT_INSIDE(tt, TREE_RAINFOREST, TREE_CACTUS)) {
+ td->str = STR_280F_RAINFOREST;
+ } else if (tt == TREE_CACTUS) {
+ td->str = STR_2810_CACTUS_PLANTS;
+ } else {
+ td->str = STR_280E_TREES;
+ }
+
+ td->owner = GetTileOwner(tile);
+}
+
+static void AnimateTile_Trees(TileIndex tile)
+{
+ /* not used */
+}
+
+static void TileLoopTreesDesert(TileIndex tile)
+{
+ switch (GetTropicZone(tile)) {
+ case TROPICZONE_DESERT:
+ if (GetTreeGround(tile) != TREE_GROUND_SNOW_DESERT) {
+ SetTreeGroundDensity(tile, TREE_GROUND_SNOW_DESERT, 3);
+ MarkTileDirtyByTile(tile);
+ }
+ break;
+
+ case TROPICZONE_RAINFOREST: {
+ static const SoundFx forest_sounds[] = {
+ SND_42_LOON_BIRD,
+ SND_43_LION,
+ SND_44_MONKEYS,
+ SND_48_DISTANT_BIRD
+ };
+ uint32 r = Random();
+
+ if (CHANCE16I(1, 200, r)) SndPlayTileFx(forest_sounds[GB(r, 16, 2)], tile);
+ break;
+ }
+
+ default: break;
+ }
+}
+
+static void TileLoopTreesAlps(TileIndex tile)
+{
+ int k = GetTileZ(tile) - _opt.snow_line + TILE_HEIGHT;
+
+ if (k < 0) {
+ if (GetTreeGround(tile) != TREE_GROUND_SNOW_DESERT) return;
+ SetTreeGroundDensity(tile, TREE_GROUND_GRASS, 0);
+ } else {
+ uint density = min((uint)k / TILE_HEIGHT, 3);
+
+ if (GetTreeGround(tile) != TREE_GROUND_SNOW_DESERT ||
+ GetTreeDensity(tile) != density) {
+ SetTreeGroundDensity(tile, TREE_GROUND_SNOW_DESERT, density);
+ } else {
+ if (GetTreeDensity(tile) == 3) {
+ uint32 r = Random();
+ if (CHANCE16I(1, 200, r)) {
+ SndPlayTileFx((r & 0x80000000) ? SND_39_HEAVY_WIND : SND_34_WIND, tile);
+ }
+ }
+ return;
+ }
+ }
+ MarkTileDirtyByTile(tile);
+}
+
+static void TileLoop_Trees(TileIndex tile)
+{
+ switch (_opt.landscape) {
+ case LT_DESERT: TileLoopTreesDesert(tile); break;
+ case LT_HILLY: TileLoopTreesAlps(tile); break;
+ }
+
+ TileLoopClearHelper(tile);
+
+ if (GetTreeCounter(tile) < 15) {
+ AddTreeCounter(tile, 1);
+ return;
+ }
+ SetTreeCounter(tile, 0);
+
+ switch (GetTreeGrowth(tile)) {
+ case 3: /* regular sized tree */
+ if (_opt.landscape == LT_DESERT &&
+ GetTreeType(tile) != TREE_CACTUS &&
+ GetTropicZone(tile) == TROPICZONE_DESERT) {
+ AddTreeGrowth(tile, 1);
+ } else {
+ switch (GB(Random(), 0, 3)) {
+ case 0: /* start destructing */
+ AddTreeGrowth(tile, 1);
+ break;
+
+ case 1: /* add a tree */
+ if (GetTreeCount(tile) < 3) {
+ AddTreeCount(tile, 1);
+ SetTreeGrowth(tile, 0);
+ break;
+ }
+ /* FALL THROUGH */
+
+ case 2: { /* add a neighbouring tree */
+ TreeType treetype = GetTreeType(tile);
+
+ tile += TileOffsByDir(Random() & 7);
+
+ if (!IsTileType(tile, MP_CLEAR) || IsBridgeAbove(tile)) return;
+
+ switch (GetClearGround(tile)) {
+ case CLEAR_GRASS:
+ if (GetClearDensity(tile) != 3) return;
+ MakeTree(tile, treetype, 0, 0, TREE_GROUND_GRASS, 0);
+ break;
+
+ case CLEAR_ROUGH: MakeTree(tile, treetype, 0, 0, TREE_GROUND_ROUGH, 0); break;
+ case CLEAR_SNOW: MakeTree(tile, treetype, 0, 0, TREE_GROUND_SNOW_DESERT, GetClearDensity(tile)); break;
+ default: return;
+ }
+ break;
+ }
+
+ default:
+ return;
+ }
+ }
+ break;
+
+ case 6: /* final stage of tree destruction */
+ if (GetTreeCount(tile) > 0) {
+ /* more than one tree, delete it */
+ AddTreeCount(tile, -1);
+ SetTreeGrowth(tile, 3);
+ } else {
+ /* just one tree, change type into MP_CLEAR */
+ switch (GetTreeGround(tile)) {
+ case TREE_GROUND_GRASS: MakeClear(tile, CLEAR_GRASS, 3); break;
+ case TREE_GROUND_ROUGH: MakeClear(tile, CLEAR_ROUGH, 3); break;
+ default: MakeClear(tile, CLEAR_SNOW, GetTreeDensity(tile)); break;
+ }
+ ClearBridgeMiddle(tile);
+ }
+ break;
+
+ default:
+ AddTreeGrowth(tile, 1);
+ break;
+ }
+
+ MarkTileDirtyByTile(tile);
+}
+
+void OnTick_Trees(void)
+{
+ uint32 r;
+ TileIndex tile;
+ ClearGround ct;
+ TreeType tree;
+
+ /* place a tree at a random rainforest spot */
+ if (_opt.landscape == LT_DESERT &&
+ (r = Random(), tile = RandomTileSeed(r), GetTropicZone(tile) == TROPICZONE_RAINFOREST) &&
+ IsTileType(tile, MP_CLEAR) &&
+ !IsBridgeAbove(tile) &&
+ (ct = GetClearGround(tile), ct == CLEAR_GRASS || ct == CLEAR_ROUGH) &&
+ (tree = GetRandomTreeType(tile, GB(r, 24, 8))) != TREE_INVALID) {
+ MakeTree(tile, tree, 0, 0, ct == CLEAR_ROUGH ? TREE_GROUND_ROUGH : TREE_GROUND_GRASS, 0);
+ }
+
+ // byte underflow
+ if (--_trees_tick_ctr != 0) return;
+
+ /* place a tree at a random spot */
+ r = Random();
+ tile = TILE_MASK(r);
+ if (IsTileType(tile, MP_CLEAR) &&
+ !IsBridgeAbove(tile) &&
+ (ct = GetClearGround(tile), ct == CLEAR_GRASS || ct == CLEAR_ROUGH || ct == CLEAR_SNOW) &&
+ (tree = GetRandomTreeType(tile, GB(r, 24, 8))) != TREE_INVALID) {
+ switch (ct) {
+ case CLEAR_GRASS: MakeTree(tile, tree, 0, 0, TREE_GROUND_GRASS, 0); break;
+ case CLEAR_ROUGH: MakeTree(tile, tree, 0, 0, TREE_GROUND_ROUGH, 0); break;
+ default: MakeTree(tile, tree, 0, 0, TREE_GROUND_SNOW_DESERT, GetClearDensity(tile)); break;
+ }
+ }
+}
+
+static void ClickTile_Trees(TileIndex tile)
+{
+ /* not used */
+}
+
+static uint32 GetTileTrackStatus_Trees(TileIndex tile, TransportType mode)
+{
+ return 0;
+}
+
+static void ChangeTileOwner_Trees(TileIndex tile, PlayerID old_player, PlayerID new_player)
+{
+ /* not used */
+}
+
+void InitializeTrees(void)
+{
+ _trees_tick_ctr = 0;
+}
+
+
+const TileTypeProcs _tile_type_trees_procs = {
+ DrawTile_Trees, /* draw_tile_proc */
+ GetSlopeZ_Trees, /* get_slope_z_proc */
+ ClearTile_Trees, /* clear_tile_proc */
+ GetAcceptedCargo_Trees, /* get_accepted_cargo_proc */
+ GetTileDesc_Trees, /* get_tile_desc_proc */
+ GetTileTrackStatus_Trees, /* get_tile_track_status_proc */
+ ClickTile_Trees, /* click_tile_proc */
+ AnimateTile_Trees, /* animate_tile_proc */
+ TileLoop_Trees, /* tile_loop_clear */
+ ChangeTileOwner_Trees, /* change_tile_owner_clear */
+ NULL, /* get_produced_cargo_proc */
+ NULL, /* vehicle_enter_tile_proc */
+ GetSlopeTileh_Trees, /* get_slope_tileh_proc */
+};