(svn r19816) -Codechange: use static const uint for the unnamed 'tile consts' enum as well

6 files changed, 31 insertions, 33 deletions

diff --git a/src/disaster_cmd.cpp b/src/disaster_cmd.cpp
index c4b00e458..adbc118b8 100644
--- a/src/disaster_cmd.cpp
+++ b/src/disaster_cmd.cpp
@@ -221,7 +221,7 @@ static bool DisasterTick_Zeppeliner(DisasterVehicle *v)
 			}
 		}
 
-		if (v->y_pos >= ((int)MapSizeY() + 9) * TILE_SIZE - 1) {
+		if (v->y_pos >= (int)((MapSizeY() + 9) * TILE_SIZE - 1)) {
 			delete v;
 			return false;
 		}
@@ -291,7 +291,7 @@ static bool DisasterTick_Ufo(DisasterVehicle *v)
 		/* Fly around randomly */
 		int x = TileX(v->dest_tile) * TILE_SIZE;
 		int y = TileY(v->dest_tile) * TILE_SIZE;
-		if (Delta(x, v->x_pos) + Delta(y, v->y_pos) >= TILE_SIZE) {
+		if (Delta(x, v->x_pos) + Delta(y, v->y_pos) >= (int)TILE_SIZE) {
 			v->direction = GetDirectionTowards(v, x, y);
 			GetNewVehiclePosResult gp = GetNewVehiclePos(v);
 			SetDisasterVehiclePos(v, gp.x, gp.y, v->z_pos);
@@ -389,7 +389,7 @@ static bool DisasterTick_Aircraft(DisasterVehicle *v, uint16 image_override, boo
 	GetNewVehiclePosResult gp = GetNewVehiclePos(v);
 	SetDisasterVehiclePos(v, gp.x, gp.y, v->z_pos);
 
-	if ((leave_at_top && gp.x < (-10 * TILE_SIZE)) || (!leave_at_top && gp.x > (int)MapSizeX() * TILE_SIZE + 9 * TILE_SIZE - 1)) {
+	if ((leave_at_top && gp.x < (-10 * (int)TILE_SIZE)) || (!leave_at_top && gp.x > (int)(MapSizeX() * TILE_SIZE + 9 * TILE_SIZE) - 1)) {
 		delete v;
 		return false;
 	}
@@ -505,7 +505,7 @@ static bool DisasterTick_Big_Ufo(DisasterVehicle *v)
 		Vehicle *target;
 		FOR_ALL_VEHICLES(target) {
 			if (target->type == VEH_TRAIN || target->type == VEH_ROAD) {
-				if (Delta(target->x_pos, v->x_pos) + Delta(target->y_pos, v->y_pos) <= 12 * TILE_SIZE) {
+				if (Delta(target->x_pos, v->x_pos) + Delta(target->y_pos, v->y_pos) <= 12 * (int)TILE_SIZE) {
 					target->breakdown_ctr = 5;
 					target->breakdown_delay = 0xF0;
 				}
@@ -536,7 +536,7 @@ static bool DisasterTick_Big_Ufo(DisasterVehicle *v)
 	} else if (v->current_order.GetDestination() == 0) {
 		int x = TileX(v->dest_tile) * TILE_SIZE;
 		int y = TileY(v->dest_tile) * TILE_SIZE;
-		if (Delta(x, v->x_pos) + Delta(y, v->y_pos) >= TILE_SIZE) {
+		if (Delta(x, v->x_pos) + Delta(y, v->y_pos) >= (int)TILE_SIZE) {
 			v->direction = GetDirectionTowards(v, x, y);
 			GetNewVehiclePosResult gp = GetNewVehiclePos(v);
 			SetDisasterVehiclePos(v, gp.x, gp.y, v->z_pos);
@@ -576,14 +576,14 @@ static bool DisasterTick_Big_Ufo_Destroyer(DisasterVehicle *v)
 	GetNewVehiclePosResult gp = GetNewVehiclePos(v);
 	SetDisasterVehiclePos(v, gp.x, gp.y, v->z_pos);
 
-	if (gp.x > (int)MapSizeX() * TILE_SIZE + 9 * TILE_SIZE - 1) {
+	if (gp.x > (int)(MapSizeX() * TILE_SIZE + 9 * TILE_SIZE) - 1) {
 		delete v;
 		return false;
 	}
 
 	if (v->current_order.GetDestination() == 0) {
 		Vehicle *u = Vehicle::Get(v->big_ufo_destroyer_target);
-		if (Delta(v->x_pos, u->x_pos) > TILE_SIZE) return true;
+		if (Delta(v->x_pos, u->x_pos) > (int)TILE_SIZE) return true;
 		v->current_order.SetDestination(1);
 
 		CreateEffectVehicleRel(u, 0, 7, 8, EV_EXPLOSION_LARGE);
diff --git a/src/smallmap_gui.cpp b/src/smallmap_gui.cpp
index 68a9a056c..16ce51369 100644
--- a/src/smallmap_gui.cpp
+++ b/src/smallmap_gui.cpp
@@ -1304,7 +1304,7 @@ public:
 			sx = -hv.x;
 			sub = 0;
 		}
-		if (sx > (int)MapMaxX() * TILE_SIZE - hv.x) {
+		if (sx > (int)(MapMaxX() * TILE_SIZE) - hv.x) {
 			sx = MapMaxX() * TILE_SIZE - hv.x;
 			sub = 0;
 		}
@@ -1312,7 +1312,7 @@ public:
 			sy = -hv.y;
 			sub = 0;
 		}
-		if (sy > (int)MapMaxY() * TILE_SIZE - hv.y) {
+		if (sy > (int)(MapMaxY() * TILE_SIZE) - hv.y) {
 			sy = MapMaxY() * TILE_SIZE - hv.y;
 			sub = 0;
 		}
diff --git a/src/terraform_cmd.cpp b/src/terraform_cmd.cpp
index 2c45bcc45..424aa9f37 100644
--- a/src/terraform_cmd.cpp
+++ b/src/terraform_cmd.cpp
@@ -156,7 +156,7 @@ static CommandCost TerraformTileHeight(TerraformerState *ts, TileIndex tile, int
 
 	/* Check range of destination height */
 	if (height < 0) return_cmd_error(STR_ERROR_ALREADY_AT_SEA_LEVEL);
-	if (height > MAX_TILE_HEIGHT) return_cmd_error(STR_ERROR_TOO_HIGH);
+	if (height > (int)MAX_TILE_HEIGHT) return_cmd_error(STR_ERROR_TOO_HIGH);
 
 	/*
 	 * Check if the terraforming has any effect.
diff --git a/src/tile_type.h b/src/tile_type.h
index 82e4146e0..26b0fa1f0 100644
--- a/src/tile_type.h
+++ b/src/tile_type.h
@@ -12,18 +12,16 @@
 #ifndef TILE_TYPE_H
 #define TILE_TYPE_H
 
+static const uint TILE_SIZE      = 16;            ///< Tiles are 16x16 "units" in size
+static const uint TILE_UNIT_MASK = TILE_SIZE - 1; ///< for masking in/out the inner-tile units.
+static const uint TILE_PIXELS    = 32;            ///< a tile is 32x32 pixels
+static const uint TILE_HEIGHT    =  8;            ///< The standard height-difference between tiles on two levels is 8 (z-diff 8)
 
-enum {
-	TILE_SIZE      = 16,            ///< Tiles are 16x16 "units" in size
-	TILE_UNIT_MASK = TILE_SIZE - 1, ///< for masking in/out the inner-tile units.
-	TILE_PIXELS    = 32,            ///< a tile is 32x32 pixels
-	TILE_HEIGHT    =  8,            ///< The standard height-difference between tiles on two levels is 8 (z-diff 8)
+static const uint MAX_TILE_HEIGHT     = 15;                    ///< Maximum allowed tile height
 
-	MAX_TILE_HEIGHT     = 15,                    ///< Maximum allowed tile height
-	MIN_SNOWLINE_HEIGHT = 2,                     ///< Minimum snowline height
-	DEF_SNOWLINE_HEIGHT = 7,                     ///< Default snowline height
-	MAX_SNOWLINE_HEIGHT = (MAX_TILE_HEIGHT - 2), ///< Maximum allowed snowline height
-};
+static const uint MIN_SNOWLINE_HEIGHT = 2;                     ///< Minimum snowline height
+static const uint DEF_SNOWLINE_HEIGHT = 7;                     ///< Default snowline height
+static const uint MAX_SNOWLINE_HEIGHT = (MAX_TILE_HEIGHT - 2); ///< Maximum allowed snowline height
 
 
 /**
diff --git a/src/tunnelbridge_cmd.cpp b/src/tunnelbridge_cmd.cpp
index 5823ff679..a08410eb5 100644
--- a/src/tunnelbridge_cmd.cpp
+++ b/src/tunnelbridge_cmd.cpp
@@ -861,7 +861,7 @@ static void DrawBridgePillars(const PalSpriteID *psid, const TileInfo *ti, Axis
 			}
 
 			/* Draw back facing pillar, but not the highest part directly under the bridge-floor */
-			if (drawfarpillar && cur_z >= back_height && cur_z < z_bridge - TILE_HEIGHT) {
+			if (drawfarpillar && cur_z >= back_height && cur_z < z_bridge - (int)TILE_HEIGHT) {
 				AddSortableSpriteToDraw(image, psid->pal, x_back, y_back, w, h, BB_HEIGHT_UNDER_BRIDGE - 5, cur_z, IsTransparencySet(TO_BRIDGES), 0, 0, -5);
 			}
 		}
diff --git a/src/viewport.cpp b/src/viewport.cpp
index 00ef9f6cc..87023c958 100644
--- a/src/viewport.cpp
+++ b/src/viewport.cpp
@@ -1017,8 +1017,8 @@ static void ViewportAddLandscape()
 
 	do {
 		int width_cur = width;
-		int x_cur = x;
-		int y_cur = y;
+		uint x_cur = x;
+		uint y_cur = y;
 
 		do {
 			TileType tt = MP_VOID;
@@ -1031,8 +1031,8 @@ static void ViewportAddLandscape()
 			ti.tileh = SLOPE_FLAT;
 			ti.tile = INVALID_TILE;
 
-			if (0 <= x_cur && x_cur < (int)MapMaxX() * TILE_SIZE &&
-					0 <= y_cur && y_cur < (int)MapMaxY() * TILE_SIZE) {
+			if (x_cur < MapMaxX() * TILE_SIZE &&
+					y_cur < MapMaxY() * TILE_SIZE) {
 				TileIndex tile = TileVirtXY(x_cur, y_cur);
 
 				if (!_settings_game.construction.freeform_edges || (TileX(tile) != 0 && TileY(tile) != 0)) {
@@ -2318,7 +2318,7 @@ static void CalcRaildirsDrawstyle(TileHighlightData *thd, int x, int y, int meth
 				} else {
 					/* We are not on a straight line. Determine the rail to build
 					 * based on whether we are above or below it. */
-					b = dx + dy >= TILE_SIZE ? HT_LINE | HT_DIR_HU : HT_LINE | HT_DIR_HL;
+					b = dx + dy >= (int)TILE_SIZE ? HT_LINE | HT_DIR_HU : HT_LINE | HT_DIR_HL;
 
 					/* Calculate where a horizontal line through the start point and
 					 * a vertical line from the selected end point intersect and
@@ -2329,7 +2329,7 @@ static void CalcRaildirsDrawstyle(TileHighlightData *thd, int x, int y, int meth
 
 					/* 'Build' the last half rail tile if needed */
 					if ((offset & TILE_UNIT_MASK) > (TILE_SIZE / 2)) {
-						if (dx + dy >= TILE_SIZE) {
+						if (dx + dy >= (int)TILE_SIZE) {
 							x += (dx + dy < 0) ? TILE_SIZE : -TILE_SIZE;
 						} else {
 							y += (dx + dy < 0) ? TILE_SIZE : -TILE_SIZE;
@@ -2341,7 +2341,7 @@ static void CalcRaildirsDrawstyle(TileHighlightData *thd, int x, int y, int meth
 					CheckUnderflow(y, x, 1);
 					CheckOverflow(x, y, (MapMaxX() - 1) * TILE_SIZE, 1);
 					CheckOverflow(y, x, (MapMaxY() - 1) * TILE_SIZE, 1);
-					assert(x >= 0 && y >= 0 && x <= (int)MapMaxX() * TILE_SIZE && y <= (int)MapMaxY() * TILE_SIZE);
+					assert(x >= 0 && y >= 0 && x <= (int)(MapMaxX() * TILE_SIZE) && y <= (int)(MapMaxY() * TILE_SIZE));
 				}
 				break;
 
@@ -2376,7 +2376,7 @@ static void CalcRaildirsDrawstyle(TileHighlightData *thd, int x, int y, int meth
 					CheckUnderflow(y, x, -1);
 					CheckOverflow(x, y, (MapMaxX() - 1) * TILE_SIZE, -1);
 					CheckOverflow(y, x, (MapMaxY() - 1) * TILE_SIZE, -1);
-					assert(x >= 0 && y >= 0 && x <= (int)MapMaxX() * TILE_SIZE && y <= (int)MapMaxY() * TILE_SIZE);
+					assert(x >= 0 && y >= 0 && x <= (int)(MapMaxX() * TILE_SIZE) && y <= (int)(MapMaxY() * TILE_SIZE));
 				}
 				break;
 
@@ -2390,18 +2390,18 @@ static void CalcRaildirsDrawstyle(TileHighlightData *thd, int x, int y, int meth
 			b = HT_RECT;
 		}
 	} else if (h == TILE_SIZE) { // Is this in X direction?
-		if (dx == TILE_SIZE) { // 2x1 special handling
+		if (dx == (int)TILE_SIZE) { // 2x1 special handling
 			b = (Check2x1AutoRail(3)) | HT_LINE;
-		} else if (dx == -TILE_SIZE) {
+		} else if (dx == -(int)TILE_SIZE) {
 			b = (Check2x1AutoRail(2)) | HT_LINE;
 		} else {
 			b = HT_LINE | HT_DIR_X;
 		}
 		y = thd->selstart.y;
 	} else if (w == TILE_SIZE) { // Or Y direction?
-		if (dy == TILE_SIZE) { // 2x1 special handling
+		if (dy == (int)TILE_SIZE) { // 2x1 special handling
 			b = (Check2x1AutoRail(1)) | HT_LINE;
-		} else if (dy == -TILE_SIZE) { // 2x1 other direction
+		} else if (dy == -(int)TILE_SIZE) { // 2x1 other direction
 			b = (Check2x1AutoRail(0)) | HT_LINE;
 		} else {
 			b = HT_LINE | HT_DIR_Y;