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(svn r4553) int and magic numbers -> Slope and DiagDirection

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This commit is contained in:
tron
2006-04-23 19:08:33 +00:00
parent 72d3fabb58
commit 8ef2c13c65
5 changed files with 38 additions and 40 deletions
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42
ai/trolly/pathfinder.c
View File

@@ -314,17 +314,15 @@ static void AyStar_AiPathFinder_GetNeighbours(AyStar *aystar, OpenListNode *curr
// Next step, check for bridges and tunnels
if (current->path.parent != NULL && current->path.node.user_data[0] == 0) {
// First we get the dir from this tile and his parent
int dir = AiNew_GetDirection(current->path.parent->node.tile, current->path.node.tile);
DiagDirection dir = AiNew_GetDirection(current->path.parent->node.tile, current->path.node.tile);
// 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;
uint tileh;
tileh = GetTileSlope(tile, NULL);
Slope tileh = GetTileSlope(tile, NULL);
// Bridges can only be build on land that is not flat
// And if there is a road or rail blocking
if (tileh != 0 ||
if (tileh != SLOPE_FLAT ||
(PathFinderInfo->rail_or_road && IsTileType(tile + TileOffsByDir(dir), MP_STREET)) ||
(!PathFinderInfo->rail_or_road && IsTileType(tile + TileOffsByDir(dir), MP_RAILWAY))) {
for (;;) {
@@ -349,16 +347,16 @@ static void AyStar_AiPathFinder_GetNeighbours(AyStar *aystar, OpenListNode *curr
}
// Next, check for tunnels!
// Tunnels can only be build with tileh of 3, 6, 9 or 12, depending on the direction
// Tunnels can only be built on slopes corresponding to the direction
// For now, we check both sides for this tile.. terraforming gives fuzzy result
if ((dir == 0 && tileh == 12) ||
(dir == 1 && tileh == 6) ||
(dir == 2 && tileh == 3) ||
(dir == 3 && tileh == 9)) {
if ((dir == DIAGDIR_NE && tileh == SLOPE_NE) ||
(dir == DIAGDIR_SE && tileh == SLOPE_SE) ||
(dir == DIAGDIR_SW && tileh == SLOPE_SW) ||
(dir == DIAGDIR_NW && tileh == SLOPE_NW)) {
// Now simply check if a tunnel can be build
ret = AI_DoCommand(tile, (PathFinderInfo->rail_or_road?0:0x200), 0, DC_AUTO, CMD_BUILD_TUNNEL);
tileh = GetTileSlope(_build_tunnel_endtile, NULL);
if (!CmdFailed(ret) && (tileh == 3 || tileh == 6 || tileh == 9 || tileh == 12)) {
if (!CmdFailed(ret) && (tileh == SLOPE_SW || tileh == SLOPE_SE || tileh == SLOPE_NW || tileh == SLOPE_NE)) {
aystar->neighbours[aystar->num_neighbours].tile = _build_tunnel_endtile;
aystar->neighbours[aystar->num_neighbours].user_data[0] = AI_PATHFINDER_FLAG_TUNNEL + (dir << 8);
aystar->neighbours[aystar->num_neighbours++].direction = 0;
@@ -368,9 +366,9 @@ static void AyStar_AiPathFinder_GetNeighbours(AyStar *aystar, OpenListNode *curr
}
extern uint GetRailFoundation(uint tileh, TrackBits bits);
extern uint GetRoadFoundation(uint tileh, uint bits);
extern uint GetBridgeFoundation(uint tileh, Axis); // XXX function declaration in .c
extern uint GetRailFoundation(Slope tileh, TrackBits bits); // XXX function declaration in .c
extern uint GetRoadFoundation(Slope tileh, uint bits); // XXX function declaration in .c
extern uint GetBridgeFoundation(Slope tileh, Axis); // XXX function declaration in .c
enum {
BRIDGE_NO_FOUNDATION = 1 << 0 | 1 << 3 | 1 << 6 | 1 << 9 | 1 << 12,
};
@@ -380,8 +378,8 @@ static int32 AyStar_AiPathFinder_CalculateG(AyStar *aystar, AyStarNode *current,
{
Ai_PathFinderInfo *PathFinderInfo = (Ai_PathFinderInfo*)aystar->user_target;
int r, res = 0;
uint tileh = GetTileSlope(current->tile, NULL);
uint parent_tileh = GetTileSlope(parent->path.node.tile, NULL);
Slope tileh = GetTileSlope(current->tile, NULL);
Slope parent_tileh = GetTileSlope(parent->path.node.tile, NULL);
// Check if we hit the end-tile
if (TILES_BETWEEN(current->tile, PathFinderInfo->end_tile_tl, PathFinderInfo->end_tile_br)) {
@@ -411,13 +409,13 @@ static int32 AyStar_AiPathFinder_CalculateG(AyStar *aystar, AyStarNode *current,
// when there is a flat land all around, they are more expensive to build, and
// especially they essentially block the ability to connect or cross the road
// from one side.
if (parent_tileh != 0 && parent->path.parent != NULL) {
if (parent_tileh != SLOPE_FLAT && parent->path.parent != NULL) {
// Skip if the tile was from a bridge or tunnel
if (parent->path.node.user_data[0] == 0 && current->user_data[0] == 0) {
if (PathFinderInfo->rail_or_road) {
r = GetRailFoundation(parent_tileh, 1 << AiNew_GetRailDirection(parent->path.parent->node.tile, parent->path.node.tile, current->tile));
// Maybe is BRIDGE_NO_FOUNDATION a bit strange here, but it contains just the right information..
if (r >= 15 || (r == 0 && (BRIDGE_NO_FOUNDATION & (1 << tileh)))) {
if (r >= 15 || (r == 0 && HASBIT(BRIDGE_NO_FOUNDATION, tileh))) {
res += AI_PATHFINDER_TILE_GOES_UP_PENALTY;
} else {
res += AI_PATHFINDER_FOUNDATION_PENALTY;
@@ -448,17 +446,17 @@ static int32 AyStar_AiPathFinder_CalculateG(AyStar *aystar, AyStarNode *current,
res += AI_PATHFINDER_BRIDGE_PENALTY * GetBridgeLength(current->tile, parent->path.node.tile);
// Check if we are going up or down, first for the starting point
// In user_data[0] is at the 8th bit the direction
if (!(BRIDGE_NO_FOUNDATION & (1 << parent_tileh))) {
if (!HASBIT(BRIDGE_NO_FOUNDATION, parent_tileh)) {
if (GetBridgeFoundation(parent_tileh, (current->user_data[0] >> 8) & 1) < 15)
res += AI_PATHFINDER_BRIDGE_GOES_UP_PENALTY;
}
// Second for the end point
if (!(BRIDGE_NO_FOUNDATION & (1 << tileh))) {
if (!HASBIT(BRIDGE_NO_FOUNDATION, tileh)) {
if (GetBridgeFoundation(tileh, (current->user_data[0] >> 8) & 1) < 15)
res += AI_PATHFINDER_BRIDGE_GOES_UP_PENALTY;
}
if (parent_tileh == 0) res += AI_PATHFINDER_BRIDGE_GOES_UP_PENALTY;
if (tileh == 0) res += AI_PATHFINDER_BRIDGE_GOES_UP_PENALTY;
if (parent_tileh == SLOPE_FLAT) res += AI_PATHFINDER_BRIDGE_GOES_UP_PENALTY;
if (tileh == SLOPE_FLAT) res += AI_PATHFINDER_BRIDGE_GOES_UP_PENALTY;
}
// To prevent the AI from taking the fastest way in tiles, but not the fastest way

10
ai/trolly/shared.c
View File

@@ -79,12 +79,12 @@ int AiNew_GetRoadDirection(TileIndex tile_a, TileIndex tile_b, TileIndex tile_c)
}
// Get's the direction between 2 tiles seen from tile_a
int AiNew_GetDirection(TileIndex tile_a, TileIndex tile_b)
DiagDirection AiNew_GetDirection(TileIndex tile_a, TileIndex tile_b)
{
if (TileY(tile_a) < TileY(tile_b)) return 1;
if (TileY(tile_a) > TileY(tile_b)) return 3;
if (TileX(tile_a) < TileX(tile_b)) return 2;
return 0;
if (TileY(tile_a) < TileY(tile_b)) return DIAGDIR_SE;
if (TileY(tile_a) > TileY(tile_b)) return DIAGDIR_NW;
if (TileX(tile_a) < TileX(tile_b)) return DIAGDIR_SW;
return DIAGDIR_NE;
}
// This functions looks up if this vehicle is special for this AI

4
ai/trolly/trolly.c
View File

@@ -838,8 +838,8 @@ static void AiNew_State_FindDepot(Player *p)
if (IsTileType(tile, MP_TUNNELBRIDGE)) continue;
// Is the terrain clear?
if (IsTileType(t, MP_CLEAR) || IsTileType(t, MP_TREES)) {
// If the current tile is on a slope (tileh != 0) then we do not allow this
if (GetTileSlope(tile, NULL) != 0) continue;
// If the current tile is on a slope then we do not allow this
if (GetTileSlope(tile, NULL) != SLOPE_FLAT) continue;
// Check if everything went okay..
r = AiNew_Build_Depot(p, t, ReverseDiagDir(j), 0);
if (CmdFailed(r)) continue;

2
ai/trolly/trolly.h
View File

@@ -245,7 +245,7 @@ void clean_AyStar_AiPathFinder(AyStar *aystar, Ai_PathFinderInfo *PathFinderInfo
// ai_shared.c
int AiNew_GetRailDirection(TileIndex tile_a, TileIndex tile_b, TileIndex tile_c);
int AiNew_GetRoadDirection(TileIndex tile_a, TileIndex tile_b, TileIndex tile_c);
int AiNew_GetDirection(TileIndex tile_a, TileIndex tile_b);
DiagDirection AiNew_GetDirection(TileIndex tile_a, TileIndex tile_b);
bool AiNew_SetSpecialVehicleFlag(Player *p, Vehicle *v, uint flag);
uint AiNew_GetSpecialVehicleFlag(Player *p, Vehicle *v);