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-rw-r--r--ai_pathfinder.c46
1 files changed, 23 insertions, 23 deletions
diff --git a/ai_pathfinder.c b/ai_pathfinder.c
index 03439359f..f51f34b83 100644
--- a/ai_pathfinder.c
+++ b/ai_pathfinder.c
@@ -38,7 +38,7 @@ int32 AyStar_AiPathFinder_EndNodeCheck(AyStar *aystar, OpenListNode *current) {
if (IS_TILETYPE(current->path.node.tile, MP_CLEAR) || IS_TILETYPE(current->path.node.tile, MP_TREES))
if (current->path.parent == NULL || TestCanBuildStationHere(current->path.node.tile,AiNew_GetDirection(current->path.parent->node.tile, current->path.node.tile)))
return AYSTAR_FOUND_END_NODE;
-
+
return AYSTAR_DONE;
}
@@ -103,7 +103,7 @@ AyStar *new_AyStar_AiPathFinder(int max_tiles_around, Ai_PathFinderInfo *PathFin
void clean_AyStar_AiPathFinder(AyStar *aystar, Ai_PathFinderInfo *PathFinderInfo) {
PathNode start_node;
uint x,y;
-
+
aystar->clear(aystar);
// Set the user_data to the PathFinderInfo
@@ -149,7 +149,7 @@ static void AyStar_AiPathFinder_FoundEndNode(AyStar *aystar, OpenListNode *curre
Ai_PathFinderInfo *PathFinderInfo = (Ai_PathFinderInfo*)aystar->user_target;
int i = 0;
PathNode *parent = &current->path;
-
+
do {
PathFinderInfo->route_extra[i] = parent->node.user_data[0];
PathFinderInfo->route[i++] = parent->node.tile;
@@ -169,16 +169,16 @@ static void AyStar_AiPathFinder_FoundEndNode(AyStar *aystar, OpenListNode *curre
static void AyStar_AiPathFinder_GetNeighbours(AyStar *aystar, OpenListNode *current) {
int i, r, dir;
Ai_PathFinderInfo *PathFinderInfo = (Ai_PathFinderInfo*)aystar->user_target;
-
+
aystar->num_neighbours = 0;
-
+
// Go through all surrounding tiles and check if they are within the limits
for (i=0;i<4;i++) {
if (GET_TILE_X(_tiles_around[i] + current->path.node.tile) > 1 && GET_TILE_X(_tiles_around[i] + current->path.node.tile) < TILE_X_MAX - 1 &&
GET_TILE_Y(_tiles_around[i] + current->path.node.tile) > 1 && GET_TILE_Y(_tiles_around[i] + current->path.node.tile) < TILE_Y_MAX - 1) {
// We also directly test if the current tile can connect to this tile..
// We do this simply by just building the tile!
-
+
// If the next step is a bridge, we have to enter it the right way
if (!PathFinderInfo->rail_or_road && AI_PATHFINDER_IS_ROAD(current->path.node.tile + _tiles_around[i])) {
if (IS_TILETYPE(current->path.node.tile + _tiles_around[i], MP_TUNNELBRIDGE)) {
@@ -198,7 +198,7 @@ static void AyStar_AiPathFinder_GetNeighbours(AyStar *aystar, OpenListNode *curr
if ((_map5[current->path.node.tile] & 1) != (i & 1)) continue;
}
}
-
+
if ((AI_PATHFINDER_FLAG_BRIDGE & current->path.node.user_data[0]) != 0 ||
(AI_PATHFINDER_FLAG_TUNNEL & current->path.node.user_data[0]) != 0) {
// We are a bridge/tunnel, how cool!!
@@ -206,7 +206,7 @@ static void AyStar_AiPathFinder_GetNeighbours(AyStar *aystar, OpenListNode *curr
if (i != (current->path.node.user_data[0] >> 8)) continue;
}
dir = 0;
-
+
// First, check if we have a parent
if (current->path.parent == NULL && current->path.node.user_data[0] == 0) {
// If not, this means we are at the starting station
@@ -254,16 +254,16 @@ static void AyStar_AiPathFinder_GetNeighbours(AyStar *aystar, OpenListNode *curr
if (r == CMD_ERROR) continue;
}
}
-
+
}
-
+
// The tile can be connected
aystar->neighbours[aystar->num_neighbours].tile = _tiles_around[i] + current->path.node.tile;
aystar->neighbours[aystar->num_neighbours].user_data[0] = 0;
aystar->neighbours[aystar->num_neighbours++].direction = 0;
}
}
-
+
// Next step, check for bridges and tunnels
if (current->path.parent != NULL && current->path.node.user_data[0] == 0) {
@@ -273,9 +273,9 @@ static void AyStar_AiPathFinder_GetNeighbours(AyStar *aystar, OpenListNode *curr
// It means we can only walk with the track, so the bridge has to be in the same direction
TileIndex tile = current->path.node.tile;
TileIndex new_tile = tile;
-
+
FindLandscapeHeightByTile(&ti, tile);
-
+
// Bridges can only be build on land that is not flat
// And if there is a road or rail blocking
if (ti.tileh != 0 ||
@@ -284,10 +284,10 @@ static void AyStar_AiPathFinder_GetNeighbours(AyStar *aystar, OpenListNode *curr
for (;;) {
new_tile += _tiles_around[dir];
-
+
// Precheck, is the length allowed?
if (!CheckBridge_Stuff(0,GetBridgeLength(tile, new_tile))) break;
-
+
// Check if we hit the station-tile.. we don't like that!
if (TILES_BETWEEN(new_tile,PathFinderInfo->end_tile_tl,PathFinderInfo->end_tile_br)) break;
@@ -302,7 +302,7 @@ static void AyStar_AiPathFinder_GetNeighbours(AyStar *aystar, OpenListNode *curr
if (aystar->num_neighbours == 11) break;
}
}
-
+
// Next, check for tunnels!
// Tunnels can only be build with tileh of 3, 6, 9 or 12, depending on the direction
// For now, we check both sides for this tile.. terraforming gives fuzzy result
@@ -334,11 +334,11 @@ static int32 AyStar_AiPathFinder_CalculateG(AyStar *aystar, AyStarNode *current,
Ai_PathFinderInfo *PathFinderInfo = (Ai_PathFinderInfo*)aystar->user_target;
int r, res = 0;
TileInfo ti, parent_ti;
-
+
// Gather some information about the tile..
FindLandscapeHeightByTile(&ti, current->tile);
FindLandscapeHeightByTile(&parent_ti, parent->path.node.tile);
-
+
// Check if we hit the end-tile
if (TILES_BETWEEN(current->tile,PathFinderInfo->end_tile_tl,PathFinderInfo->end_tile_br)) {
// We are at the end-tile, check if we had a direction or something...
@@ -348,7 +348,7 @@ static int32 AyStar_AiPathFinder_CalculateG(AyStar *aystar, AyStarNode *current,
// If it was valid, drop out.. we don't build on the endtile
return 0;
}
-
+
// Give everything a small penalty
res += AI_PATHFINDER_PENALTY;
@@ -359,7 +359,7 @@ static int32 AyStar_AiPathFinder_CalculateG(AyStar *aystar, AyStarNode *current,
res -= AI_PATHFINDER_ROAD_ALREADY_EXISTS_BONUS;
}
}
-
+
// We should give a penalty when the tile is going up or down.. this is one way to do so!
// Too bad we have to count it from the parent.. but that is not so bad
if (parent_ti.tileh != 0 && parent->path.parent != NULL) {
@@ -380,7 +380,7 @@ static int32 AyStar_AiPathFinder_CalculateG(AyStar *aystar, AyStarNode *current,
}
}
}
-
+
// Are we part of a tunnel?
if ((AI_PATHFINDER_FLAG_TUNNEL & current->user_data[0]) != 0) {
// Tunnels are very expensive when build on long routes..
@@ -409,7 +409,7 @@ static int32 AyStar_AiPathFinder_CalculateG(AyStar *aystar, AyStarNode *current,
if (ti.tileh == 0)
res += AI_PATHFINDER_BRIDGE_GOES_UP_PENALTY;
}
-
+
// To prevent the AI from taking the fastest way in tiles, but not the fastest way
// in speed, we have to give a good penalty to direction changing
// This way, we get almost the fastest way in tiles, and a very good speed on the track
@@ -448,7 +448,7 @@ static int32 AyStar_AiPathFinder_CalculateG(AyStar *aystar, AyStarNode *current,
}
}
}
-
+
// Res should never be below zero.. if so, make it zero!
if (res < 0) { res = 0; }
generated by cgit v1.2.3-70-g09d2 (git 2.47.1) at 2024-12-25 01:55:48 +0000