(svn r4166) Sprinkle several map accessors with assert()s

bridge_map.h

@@ -13,6 +13,7 @@
 
 static inline bool IsBridge(TileIndex t)
 {
+	assert(IsTileType(t, MP_TUNNELBRIDGE));
 	return HASBIT(_m[t].m5, 7);
 }
 
@@ -24,11 +25,13 @@ static inline bool IsBridgeTile(TileIndex t)
 
 static inline bool IsBridgeRamp(TileIndex t)
 {
+	assert(IsBridgeTile(t));
 	return !HASBIT(_m[t].m5, 6);
 }
 
 static inline bool IsBridgeMiddle(TileIndex t)
 {
+	assert(IsBridgeTile(t));
 	return HASBIT(_m[t].m5, 6);
 }
 
@@ -38,9 +41,10 @@ static inline bool IsBridgeMiddle(TileIndex t)
  * @param tile The tile to analyze
  * @return the piece
  */
-static inline uint GetBridgePiece(TileIndex tile)
+static inline uint GetBridgePiece(TileIndex t)
 {
-	return GB(_m[tile].m2, 0, 4);
+	assert(IsBridgeMiddle(t));
+	return GB(_m[t].m2, 0, 4);
 }
 
 
@@ -49,9 +53,10 @@ static inline uint GetBridgePiece(TileIndex tile)
  * @param tile The tile to analyze
  * @return The bridge type
  */
-static inline uint GetBridgeType(TileIndex tile)
+static inline uint GetBridgeType(TileIndex t)
 {
-	return GB(_m[tile].m2, 4, 4);
+	assert(IsBridgeTile(t));
+	return GB(_m[t].m2, 4, 4);
 }
 
 
@@ -60,6 +65,7 @@ static inline uint GetBridgeType(TileIndex tile)
  */
 static inline DiagDirection GetBridgeRampDirection(TileIndex t)
 {
+	assert(IsBridgeRamp(t));
 	/* Heavy wizardry to convert the X/Y (bit 0) + N/S (bit 5) encoding of
 	 * bridges to a DiagDirection
 	 */
@@ -69,44 +75,52 @@ static inline DiagDirection GetBridgeRampDirection(TileIndex t)
 
 static inline Axis GetBridgeAxis(TileIndex t)
 {
+	assert(IsBridgeMiddle(t));
 	return (Axis)GB(_m[t].m5, 0, 1);
 }
 
 
 static inline TransportType GetBridgeTransportType(TileIndex t)
 {
+	assert(IsBridgeTile(t));
 	return (TransportType)GB(_m[t].m5, 1, 2);
 }
 
 
 static inline bool IsClearUnderBridge(TileIndex t)
 {
+	assert(IsBridgeMiddle(t));
 	return GB(_m[t].m5, 3, 3) == 0;
 }
 
 static inline bool IsWaterUnderBridge(TileIndex t)
 {
+	assert(IsBridgeMiddle(t));
 	return GB(_m[t].m5, 3, 3) == 1;
 }
 
 
 static inline bool IsTransportUnderBridge(TileIndex t)
 {
+	assert(IsBridgeMiddle(t));
 	return HASBIT(_m[t].m5, 5);
 }
 
 static inline TransportType GetTransportTypeUnderBridge(TileIndex t)
 {
+	assert(IsTransportUnderBridge(t));
 	return (TransportType)GB(_m[t].m5, 3, 2);
 }
 
 static inline RoadBits GetRoadBitsUnderBridge(TileIndex t)
 {
+	assert(GetTransportTypeUnderBridge(t) == TRANSPORT_ROAD);
 	return GetBridgeAxis(t) == AXIS_X ? ROAD_Y : ROAD_X;
 }
 
 static inline TrackBits GetRailBitsUnderBridge(TileIndex t)
 {
+	assert(GetTransportTypeUnderBridge(t) == TRANSPORT_RAIL);
 	return GetBridgeAxis(t) == AXIS_X ? TRACK_BIT_Y : TRACK_BIT_X;
 }
 
@@ -131,18 +145,21 @@ uint GetBridgeHeight(TileIndex t);
 
 static inline void SetClearUnderBridge(TileIndex t)
 {
+	assert(IsBridgeMiddle(t));
 	SetTileOwner(t, OWNER_NONE);
 	SB(_m[t].m5, 3, 3, 0 << 2 | 0);
 }
 
 static inline void SetWaterUnderBridge(TileIndex t)
 {
+	assert(IsBridgeMiddle(t));
 	SetTileOwner(t, OWNER_WATER);
 	SB(_m[t].m5, 3, 3, 0 << 2 | 1);
 }
 
 static inline void SetRailUnderBridge(TileIndex t, Owner o, RailType r)
 {
+	assert(IsBridgeMiddle(t));
 	SetTileOwner(t, o);
 	SB(_m[t].m5, 3, 3, 1 << 2 | TRANSPORT_RAIL);
 	SB(_m[t].m3, 0, 4, r);
@@ -150,6 +167,7 @@ static inline void SetRailUnderBridge(TileIndex t, Owner o, RailType r)
 
 static inline void SetRoadUnderBridge(TileIndex t, Owner o)
 {
+	assert(IsBridgeMiddle(t));
 	SetTileOwner(t, o);
 	SB(_m[t].m5, 3, 3, 1 << 2 | TRANSPORT_ROAD);
 }

clear_map.h

@@ -18,31 +18,96 @@ typedef enum ClearGround {
 	CL_DESERT = 5  // 1,3
 } ClearGround;
 
-static inline ClearGround GetClearGround(TileIndex t) { return GB(_m[t].m5, 2, 3); }
-static inline bool IsClearGround(TileIndex t, ClearGround ct) { return GetClearGround(t) == ct; }
 
-static inline void AddClearDensity(TileIndex t, int d) { _m[t].m5 += d; }
-static inline uint GetClearDensity(TileIndex t) { return GB(_m[t].m5, 0, 2); }
+static inline ClearGround GetClearGround(TileIndex t)
+{
+	assert(IsTileType(t, MP_CLEAR));
+	return GB(_m[t].m5, 2, 3);
+}
+
+static inline bool IsClearGround(TileIndex t, ClearGround ct)
+{
+	return GetClearGround(t) == ct;
+}
+
+
+static inline uint GetClearDensity(TileIndex t)
+{
+	assert(IsTileType(t, MP_CLEAR));
+	return GB(_m[t].m5, 0, 2);
+}
+
+static inline void AddClearDensity(TileIndex t, int d)
+{
+	assert(IsTileType(t, MP_CLEAR)); // XXX incomplete
+	_m[t].m5 += d;
+}
+
+
+static inline uint GetClearCounter(TileIndex t)
+{
+	assert(IsTileType(t, MP_CLEAR));
+	return GB(_m[t].m5, 5, 3);
+}
+
+static inline void AddClearCounter(TileIndex t, int c)
+{
+	assert(IsTileType(t, MP_CLEAR)); // XXX incomplete
+	_m[t].m5 += c << 5;
+}
+
+static inline void SetClearCounter(TileIndex t, uint c)
+{
+	assert(IsTileType(t, MP_CLEAR)); // XXX incomplete
+	SB(_m[t].m5, 5, 3, c);
+}
 
-static inline void AddClearCounter(TileIndex t, int c) { _m[t].m5 += c << 5; }
-static inline uint GetClearCounter(TileIndex t) { return GB(_m[t].m5, 5, 3); }
-static inline void SetClearCounter(TileIndex t, uint c) { SB(_m[t].m5, 5, 3, c); }
 
 /* Sets type and density in one go, also sets the counter to 0 */
 static inline void SetClearGroundDensity(TileIndex t, ClearGround type, uint density)
 {
+	assert(IsTileType(t, MP_CLEAR)); // XXX incomplete
 	_m[t].m5 = 0 << 5 | type << 2 | density;
 }
 
-static inline uint GetFieldType(TileIndex t) { return GB(_m[t].m3, 0, 4); }
-static inline void SetFieldType(TileIndex t, uint f) { SB(_m[t].m3, 0, 4, f); }
+
+static inline uint GetFieldType(TileIndex t)
+{
+	assert(GetClearGround(t) == CL_FIELDS);
+	return GB(_m[t].m3, 0, 4);
+}
+
+static inline void SetFieldType(TileIndex t, uint f)
+{
+	assert(GetClearGround(t) == CL_FIELDS); // XXX incomplete
+	SB(_m[t].m3, 0, 4, f);
+}
+
 
 /* Is used by tree tiles, too */
-static inline uint GetFenceSE(TileIndex t) { return GB(_m[t].m4, 2, 3); }
-static inline void SetFenceSE(TileIndex t, uint h) { SB(_m[t].m4, 2, 3, h); }
+static inline uint GetFenceSE(TileIndex t)
+{
+	assert(IsTileType(t, MP_CLEAR) || IsTileType(t, MP_TREES));
+	return GB(_m[t].m4, 2, 3);
+}
 
-static inline uint GetFenceSW(TileIndex t) { return GB(_m[t].m4, 5, 3); }
-static inline void SetFenceSW(TileIndex t, uint h) { SB(_m[t].m4, 5, 3, h); }
+static inline void SetFenceSE(TileIndex t, uint h)
+{
+	assert(IsTileType(t, MP_CLEAR) || IsTileType(t, MP_TREES)); // XXX incomplete
+	SB(_m[t].m4, 2, 3, h);
+}
+
+static inline uint GetFenceSW(TileIndex t)
+{
+	assert(IsTileType(t, MP_CLEAR) || IsTileType(t, MP_TREES));
+	return GB(_m[t].m4, 5, 3);
+}
+
+static inline void SetFenceSW(TileIndex t, uint h)
+{
+	assert(IsTileType(t, MP_CLEAR) || IsTileType(t, MP_TREES)); // XXX incomplete
+	SB(_m[t].m4, 5, 3, h);
+}
 
 
 static inline void MakeClear(TileIndex t, ClearGround g, uint density)

industry_map.h

@@ -7,6 +7,7 @@
 
 static inline uint GetIndustryIndex(TileIndex t)
 {
+	assert(IsTileType(t, MP_INDUSTRY));
 	return _m[t].m2;
 }
 
@@ -16,19 +17,22 @@ static inline Industry* GetIndustryByTile(TileIndex t)
 }
 
 
-static inline bool IsIndustryCompleted(TileIndex tile)
+static inline bool IsIndustryCompleted(TileIndex t)
 {
-	return HASBIT(_m[tile].m1, 7);
+	assert(IsTileType(t, MP_INDUSTRY));
+	return HASBIT(_m[t].m1, 7);
 }
 
 
 static inline uint GetIndustryGfx(TileIndex t)
 {
+	assert(IsTileType(t, MP_INDUSTRY));
 	return _m[t].m5;
 }
 
 static inline void SetIndustryGfx(TileIndex t, uint gfx)
 {
+	assert(IsTileType(t, MP_INDUSTRY));
 	_m[t].m5 = gfx;
 }
 

road_map.h

@@ -28,20 +28,36 @@ static inline RoadBits DiagDirToRoadBits(DiagDirection d)
 }
 
 
-static inline RoadBits GetRoadBits(TileIndex tile)
-{
-	return GB(_m[tile].m5, 0, 4);
-}
+typedef enum RoadType {
+	ROAD_NORMAL,
+	ROAD_CROSSING,
+	ROAD_DEPOT
+} RoadType;
 
-static inline void SetRoadBits(TileIndex tile, RoadBits r)
+static inline RoadType GetRoadType(TileIndex t)
 {
-	SB(_m[tile].m5, 0, 4, r);
+	assert(IsTileType(t, MP_STREET));
+	return GB(_m[t].m5, 4, 4);
 }
 
 
-static inline Axis GetCrossingRoadAxis(TileIndex tile)
+static inline RoadBits GetRoadBits(TileIndex t)
 {
-	return (Axis)GB(_m[tile].m5, 3, 1);
+	assert(GetRoadType(t) == ROAD_NORMAL);
+	return GB(_m[t].m5, 0, 4);
+}
+
+static inline void SetRoadBits(TileIndex t, RoadBits r)
+{
+	assert(GetRoadType(t) == ROAD_NORMAL); // XXX incomplete
+	SB(_m[t].m5, 0, 4, r);
+}
+
+
+static inline Axis GetCrossingRoadAxis(TileIndex t)
+{
+	assert(GetRoadType(t) == ROAD_CROSSING);
+	return (Axis)GB(_m[t].m5, 3, 1);
 }
 
 static inline RoadBits GetCrossingRoadBits(TileIndex tile)
@@ -58,44 +74,39 @@ static inline TrackBits GetCrossingRailBits(TileIndex tile)
 // TODO swap owner of road and rail
 static inline Owner GetCrossingRoadOwner(TileIndex t)
 {
+	assert(GetRoadType(t) == ROAD_CROSSING);
 	return (Owner)_m[t].m3;
 }
 
 static inline void SetCrossingRoadOwner(TileIndex t, Owner o)
 {
+	assert(GetRoadType(t) == ROAD_CROSSING);
 	_m[t].m3 = o;
 }
 
 static inline void UnbarCrossing(TileIndex t)
 {
+	assert(GetRoadType(t) == ROAD_CROSSING);
 	CLRBIT(_m[t].m5, 2);
 }
 
 static inline void BarCrossing(TileIndex t)
 {
+	assert(GetRoadType(t) == ROAD_CROSSING);
 	SETBIT(_m[t].m5, 2);
 }
 
 static inline bool IsCrossingBarred(TileIndex t)
 {
+	assert(GetRoadType(t) == ROAD_CROSSING);
 	return HASBIT(_m[t].m5, 2);
 }
 
-typedef enum RoadType {
-	ROAD_NORMAL,
-	ROAD_CROSSING,
-	ROAD_DEPOT
-} RoadType;
 
-static inline RoadType GetRoadType(TileIndex tile)
+static inline DiagDirection GetRoadDepotDirection(TileIndex t)
 {
-	return GB(_m[tile].m5, 4, 4);
-}
-
-
-static inline DiagDirection GetRoadDepotDirection(TileIndex tile)
-{
-	return (DiagDirection)GB(_m[tile].m5, 0, 2);
+	assert(GetRoadType(t) == ROAD_DEPOT);
+	return (DiagDirection)GB(_m[t].m5, 0, 2);
 }
 
 

station_map.h

@@ -9,6 +9,7 @@
 
 static inline StationID GetStationIndex(TileIndex t)
 {
+	assert(IsTileType(t, MP_STATION));
 	return (StationID)_m[t].m2;
 }
 
@@ -68,11 +69,13 @@ static inline RoadStopType GetRoadStopType(TileIndex t)
 
 static inline bool IsRailwayStation(TileIndex t)
 {
+	assert(IsTileType(t, MP_STATION));
 	return _m[t].m5 < RAILWAY_BASE + RAILWAY_SIZE;
 }
 
 static inline bool IsHangar(TileIndex t)
 {
+	assert(IsTileType(t, MP_STATION));
 	return
 		_m[t].m5 == HANGAR_TILE_0 ||
 		_m[t].m5 == HANGAR_TILE_1 ||
@@ -81,6 +84,7 @@ static inline bool IsHangar(TileIndex t)
 
 static inline bool IsAirport(TileIndex t)
 {
+	assert(IsTileType(t, MP_STATION));
 	return
 		IS_INT_INSIDE(_m[t].m5, AIRPORT_BASE, AIRPORT_BASE + AIRPORT_SIZE) ||
 		IS_INT_INSIDE(_m[t].m5, AIRPORT_BASE_EXTENDED, AIRPORT_BASE_EXTENDED + AIRPORT_SIZE_EXTENDED);
@@ -88,11 +92,13 @@ static inline bool IsAirport(TileIndex t)
 
 static inline bool IsTruckStop(TileIndex t)
 {
+	assert(IsTileType(t, MP_STATION));
 	return IS_INT_INSIDE(_m[t].m5, TRUCK_BASE, TRUCK_BASE + TRUCK_SIZE);
 }
 
 static inline bool IsBusStop(TileIndex t)
 {
+	assert(IsTileType(t, MP_STATION));
 	return IS_INT_INSIDE(_m[t].m5, BUS_BASE, BUS_BASE + BUS_SIZE);
 }
 
@@ -103,16 +109,19 @@ static inline bool IsRoadStop(TileIndex t)
 
 static inline bool IsOilRig(TileIndex t)
 {
+	assert(IsTileType(t, MP_STATION));
 	return _m[t].m5 == OILRIG_BASE;
 }
 
 static inline bool IsDock(TileIndex t)
 {
+	assert(IsTileType(t, MP_STATION));
 	return IS_INT_INSIDE(_m[t].m5, DOCK_BASE, DOCK_BASE + DOCK_SIZE_TOTAL);
 }
 
 static inline bool IsBuoy_(TileIndex t) // XXX _ due to naming conflict
 {
+	assert(IsTileType(t, MP_STATION));
 	return _m[t].m5 == BUOY_BASE;
 }
 
@@ -147,17 +156,20 @@ static inline DiagDirection GetDockDirection(TileIndex t)
 
 static inline bool IsCustomStationSprite(TileIndex t)
 {
+	assert(IsTileType(t, MP_STATION));
 	return HASBIT(_m[t].m3, 4);
 }
 
 static inline void SetCustomStationSprite(TileIndex t, byte sprite)
 {
+	assert(IsTileType(t, MP_STATION));
 	SETBIT(_m[t].m3, 4);
 	_m[t].m4 = sprite;
 }
 
 static inline uint GetCustomStationSprite(TileIndex t)
 {
+	assert(IsTileType(t, MP_STATION));
 	return _m[t].m4;
 }
 

town_map.h

@@ -5,6 +5,7 @@
 
 static inline uint GetTownIndex(TileIndex t)
 {
+	assert(IsTileType(t, MP_HOUSE) || IsTileType(t, MP_STREET)); // XXX incomplete
 	return _m[t].m2;
 }
 

tree_map.h

@@ -31,30 +31,91 @@ typedef enum TreeGround {
 	TR_SNOW_DESERT = 2  // 0-3 for snow, 3 for desert
 } TreeGround;
 
-static inline TreeType GetTreeType(TileIndex t) { return _m[t].m3; }
-static inline void SetTreeType(TileIndex t, TreeType r) { _m[t].m3 = r; }
 
-static inline TreeGround GetTreeGround(TileIndex t) { return GB(_m[t].m2, 4, 2); }
+static inline TreeType GetTreeType(TileIndex t)
+{
+	assert(IsTileType(t, MP_TREES));
+	return _m[t].m3;
+}
+
+
+static inline TreeGround GetTreeGround(TileIndex t)
+{
+	assert(IsTileType(t, MP_TREES));
+	return GB(_m[t].m2, 4, 2);
+}
+
+
+static inline uint GetTreeDensity(TileIndex t)
+{
+	assert(IsTileType(t, MP_TREES));
+	return GB(_m[t].m2, 6, 2);
+}
 
-static inline uint GetTreeDensity(TileIndex t) { return GB(_m[t].m2, 6, 2); }
 
 static inline void SetTreeGroundDensity(TileIndex t, TreeGround g, uint d)
 {
+	assert(IsTileType(t, MP_TREES)); // XXX incomplete
 	SB(_m[t].m2, 4, 2, g);
 	SB(_m[t].m2, 6, 2, d);
 }
 
-static inline void AddTreeCount(TileIndex t, int c) { _m[t].m5 += c << 6; }
-static inline uint GetTreeCount(TileIndex t) { return GB(_m[t].m5, 6, 2); }
-static inline void SetTreeCount(TileIndex t, uint c) { SB(_m[t].m5, 6, 2, c); }
 
-static inline void AddTreeGrowth(TileIndex t, int a) { _m[t].m5 += a; }
-static inline uint GetTreeGrowth(TileIndex t) { return GB(_m[t].m5, 0, 3); }
-static inline void SetTreeGrowth(TileIndex t, uint g) { SB(_m[t].m5, 0, 3, g); }
+static inline uint GetTreeCount(TileIndex t)
+{
+	assert(IsTileType(t, MP_TREES));
+	return GB(_m[t].m5, 6, 2);
+}
 
-static inline void AddTreeCounter(TileIndex t, int a) { _m[t].m2 += a; }
-static inline uint GetTreeCounter(TileIndex t) { return GB(_m[t].m2, 0, 4); }
-static inline void SetTreeCounter(TileIndex t, uint c) { SB(_m[t].m2, 0, 4, c); }
+static inline void AddTreeCount(TileIndex t, int c)
+{
+	assert(IsTileType(t, MP_TREES)); // XXX incomplete
+	_m[t].m5 += c << 6;
+}
+
+static inline void SetTreeCount(TileIndex t, uint c)
+{
+	assert(IsTileType(t, MP_TREES)); // XXX incomplete
+	SB(_m[t].m5, 6, 2, c);
+}
+
+
+static inline uint GetTreeGrowth(TileIndex t)
+{
+	assert(IsTileType(t, MP_TREES));
+	return GB(_m[t].m5, 0, 3);
+}
+
+static inline void AddTreeGrowth(TileIndex t, int a)
+{
+	assert(IsTileType(t, MP_TREES)); // XXX incomplete
+	_m[t].m5 += a;
+}
+
+static inline void SetTreeGrowth(TileIndex t, uint g)
+{
+	assert(IsTileType(t, MP_TREES)); // XXX incomplete
+	SB(_m[t].m5, 0, 3, g);
+}
+
+
+static inline uint GetTreeCounter(TileIndex t)
+{
+	assert(IsTileType(t, MP_TREES));
+	return GB(_m[t].m2, 0, 4);
+}
+
+static inline void AddTreeCounter(TileIndex t, int a)
+{
+	assert(IsTileType(t, MP_TREES)); // XXX incomplete
+	_m[t].m2 += a;
+}
+
+static inline void SetTreeCounter(TileIndex t, uint c)
+{
+	assert(IsTileType(t, MP_TREES)); // XXX incomplete
+	SB(_m[t].m2, 0, 4, c);
+}
 
 
 static inline void MakeTree(TileIndex t, TreeType type, uint count, uint growth, TreeGround ground, uint density)

tunnel_map.h

@@ -11,6 +11,7 @@
 
 static inline bool IsTunnel(TileIndex t)
 {
+	assert(IsTileType(t, MP_TUNNELBRIDGE));
 	return !HASBIT(_m[t].m5, 7);
 }
 
@@ -23,12 +24,14 @@ static inline bool IsTunnelTile(TileIndex t)
 
 static inline DiagDirection GetTunnelDirection(TileIndex t)
 {
+	assert(IsTunnelTile(t));
 	return (DiagDirection)GB(_m[t].m5, 0, 2);
 }
 
 
 static inline TransportType GetTunnelTransportType(TileIndex t)
 {
+	assert(IsTunnelTile(t));
 	return (TransportType)GB(_m[t].m5, 2, 2);
 }
 

unmovable_map.h

@@ -10,6 +10,7 @@ typedef enum UnmovableType {
 
 static inline UnmovableType GetUnmovableType(TileIndex t)
 {
+	assert(IsTileType(t, MP_UNMOVABLE));
 	return _m[t].m5;
 }
 
@@ -24,6 +25,7 @@ static inline bool IsTransmitterTile(TileIndex t)
 
 static inline bool IsOwnedLand(TileIndex t)
 {
+	assert(IsTileType(t, MP_UNMOVABLE));
 	return GetUnmovableType(t) == UNMOVABLE_OWNED_LAND;
 }