cpp/openttd-patchpack/source Changeset - r2839:c302b8fc0717

Changeset - r2839:c302b8fc0717

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tron - 19 years ago 2006-01-07 16:30:49
tron@openttd.org

(svn r3387) Restructure the code, which places fences along railroad tracks.
This includes no functional changes, just some cleanup before some bugfix

1 file changed with 64 insertions and 35 deletions:

rail_cmd.c

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rail_cmd.c

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@@ @@ -1942,25 +1942,24 @@ static void GetAcceptedCargo_Track(TileI @@
 	/* not used */
+}
 static void AnimateTile_Track(TileIndex tile)
+{
 	/* not used */
+}
 static void TileLoop_Track(TileIndex tile)
+{
 	byte old_ground;
 	byte new_ground;
 	TrackBits rail;
 	old_ground = _m[tile].m5 & RAIL_TYPE_SPECIAL ? GB(_m[tile].m4, 0, 4) : GB(_m[tile].m2, 0, 4);
 	switch (_opt.landscape) {
 		case LT_HILLY:
 			if (GetTileZ(tile) > _opt.snow_line) { /* convert into snow? */
 				new_ground = RAIL_GROUND_ICE_DESERT;
 				goto modify_me;
+			}
 			break;
 		case LT_DESERT:
@@ @@ -1969,63 +1968,93 @@ static void TileLoop_Track(TileIndex til @@
 				goto modify_me;
+			}
 			break;
+	}
 	// Don't continue tile loop for depots
 	if (_m[tile].m5 & RAIL_TYPE_SPECIAL) return;
 	new_ground = RAIL_GROUND_GREEN;
 	if (old_ground != RAIL_GROUND_BROWN) { /* wait until bottom is green */
 		/* determine direction of fence */
 		rail = _m[tile].m5 & TRACK_BIT_MASK;
 		TrackBits rail = _m[tile].m5 & TRACK_BIT_MASK;
 		switch (rail) {
 			case TRACK_BIT_UPPER: new_ground = RAIL_GROUND_FENCE_HORIZ1; break;
 			case TRACK_BIT_LOWER: new_ground = RAIL_GROUND_FENCE_HORIZ2; break;
 			case TRACK_BIT_LEFT:  new_ground = RAIL_GROUND_FENCE_VERT1;  break;
 			case TRACK_BIT_RIGHT: new_ground = RAIL_GROUND_FENCE_VERT2;  break;
 			default: {
 				PlayerID owner = GetTileOwner(tile);
 		if (rail == TRACK_BIT_UPPER) {
 			new_ground = RAIL_GROUND_FENCE_HORIZ1;
 		} else if (rail == TRACK_BIT_LOWER) {
 			new_ground = RAIL_GROUND_FENCE_HORIZ2;
 		} else if (rail == TRACK_BIT_LEFT) {
 			new_ground = RAIL_GROUND_FENCE_VERT1;
 		} else if (rail == TRACK_BIT_RIGHT) {
 			new_ground = RAIL_GROUND_FENCE_VERT2;
 		} else {
 			PlayerID owner = GetTileOwner(tile);
 				if (rail == (TRACK_BIT_LOWER | TRACK_BIT_RIGHT) || (
 							!(rail & (TRACK_BIT_DIAG2 | TRACK_BIT_UPPER | TRACK_BIT_LEFT)) &&
 							(rail & TRACK_BIT_DIAG1)
 						)) {
 					TileIndex n = tile + TileDiffXY(0, -1);
 			if ( (!(rail&(TRACK_BIT_DIAG2|TRACK_BIT_UPPER|TRACK_BIT_LEFT)) && (rail&TRACK_BIT_DIAG1)) || rail==(TRACK_BIT_LOWER|TRACK_BIT_RIGHT)) {
 				if (!IsTileType(tile + TileDiffXY(0, -1), MP_RAILWAY) ||
 						!IsTileOwner(tile + TileDiffXY(0, -1), owner) ||
 						(_m[tile + TileDiffXY(0, -1)].m5 == TRACK_BIT_UPPER || _m[tile + TileDiffXY(0, -1)].m5 == TRACK_BIT_LEFT))
 							new_ground = RAIL_GROUND_FENCE_NW;
+			}
 					if (!IsTileType(n, MP_RAILWAY) ||
 							!IsTileOwner(n, owner) ||
 							_m[n].m5 == TRACK_BIT_UPPER ||
 							_m[n].m5 == TRACK_BIT_LEFT) {
 						new_ground = RAIL_GROUND_FENCE_NW;
+					}
+				}
 				if (rail == (TRACK_BIT_UPPER | TRACK_BIT_LEFT) || (
 							!(rail & (TRACK_BIT_DIAG2 | TRACK_BIT_LOWER | TRACK_BIT_RIGHT)) &&
 							(rail & TRACK_BIT_DIAG1)
 						)) {
 					TileIndex n = tile + TileDiffXY(0, 1);
 			if ( (!(rail&(TRACK_BIT_DIAG2|TRACK_BIT_LOWER|TRACK_BIT_RIGHT)) && (rail&TRACK_BIT_DIAG1)) || rail==(TRACK_BIT_UPPER|TRACK_BIT_LEFT)) {
 				if (!IsTileType(tile + TileDiffXY(0, 1), MP_RAILWAY) ||
 						!IsTileOwner(tile + TileDiffXY(0, 1), owner) ||
 						(_m[tile + TileDiffXY(0, 1)].m5 == TRACK_BIT_LOWER || _m[tile + TileDiffXY(0, 1)].m5 == TRACK_BIT_RIGHT))
 							new_ground = (new_ground == RAIL_GROUND_FENCE_NW) ? RAIL_GROUND_FENCE_SENW : RAIL_GROUND_FENCE_SE;
+			}
 					if (!IsTileType(n, MP_RAILWAY) ||
 							!IsTileOwner(n, owner) ||
 							_m[n].m5 == TRACK_BIT_LOWER ||
 							_m[n].m5 == TRACK_BIT_RIGHT) {
 						new_ground = (new_ground == RAIL_GROUND_FENCE_NW) ?
 							RAIL_GROUND_FENCE_SENW : RAIL_GROUND_FENCE_SE;
+					}
+				}
 				if (rail == (TRACK_BIT_LOWER | TRACK_BIT_LEFT) || (
 							!(rail & (TRACK_BIT_DIAG1 | TRACK_BIT_UPPER | TRACK_BIT_RIGHT)) &&
 							(rail & TRACK_BIT_DIAG2)
 						)) {
 					TileIndex n = tile + TileDiffXY(-1, 0);
 			if ( (!(rail&(TRACK_BIT_DIAG1|TRACK_BIT_UPPER|TRACK_BIT_RIGHT)) && (rail&TRACK_BIT_DIAG2)) || rail==(TRACK_BIT_LOWER|TRACK_BIT_LEFT)) {
 				if (!IsTileType(tile + TileDiffXY(-1, 0), MP_RAILWAY) ||
 						!IsTileOwner(tile + TileDiffXY(-1, 0), owner) ||
 						(_m[tile + TileDiffXY(-1, 0)].m5 == TRACK_BIT_UPPER || _m[tile + TileDiffXY(-1, 0)].m5 == TRACK_BIT_RIGHT))
 							new_ground = RAIL_GROUND_FENCE_NE;
+			}
 					if (!IsTileType(n, MP_RAILWAY) ||
 							!IsTileOwner(n, owner) ||
 							_m[n].m5 == TRACK_BIT_UPPER ||
 							_m[n].m5 == TRACK_BIT_RIGHT) {
 						new_ground = RAIL_GROUND_FENCE_NE;
+					}
+				}
 			if ( (!(rail&(TRACK_BIT_DIAG1|TRACK_BIT_LOWER|TRACK_BIT_LEFT)) && (rail&TRACK_BIT_DIAG2)) || rail==(TRACK_BIT_UPPER|TRACK_BIT_RIGHT)) {
 				if (!IsTileType(tile + TileDiffXY(1, 0), MP_RAILWAY) ||
 						!IsTileOwner(tile + TileDiffXY(1, 0), owner) ||
 						(_m[tile + TileDiffXY(1, 0)].m5 == TRACK_BIT_LOWER || _m[tile + TileDiffXY(1, 0)].m5 == TRACK_BIT_LEFT))
 							new_ground = (new_ground == RAIL_GROUND_FENCE_NE) ? RAIL_GROUND_FENCE_NESW : RAIL_GROUND_FENCE_SW;
 				if (rail == (TRACK_BIT_UPPER | TRACK_BIT_RIGHT) || (
 							!(rail & (TRACK_BIT_DIAG1 | TRACK_BIT_LOWER | TRACK_BIT_LEFT)) &&
 							(rail & TRACK_BIT_DIAG2)
 						)) {
 					TileIndex n = tile + TileDiffXY(1, 0);
 					if (!IsTileType(n, MP_RAILWAY) ||
 							!IsTileOwner(n, owner) ||
 							_m[n].m5 == TRACK_BIT_LOWER ||
 							_m[n].m5 == TRACK_BIT_LEFT) {
 						new_ground = (new_ground == RAIL_GROUND_FENCE_NE) ?
 							RAIL_GROUND_FENCE_NESW : RAIL_GROUND_FENCE_SW;
+					}
+				}
 				break;
+			}
+		}
+	}
 modify_me:;
 	/* tile changed? */
 	if (old_ground != new_ground) {
 		if (_m[tile].m5 & RAIL_TYPE_SPECIAL) {
 			SB(_m[tile].m4, 0, 4, new_ground);
 		} else {
 			SB(_m[tile].m2, 0, 4, new_ground);
+		}

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