(svn r11526) -Codechange: Rename the function delta fitting to the naming style

src/core/math_func.hpp

@@ -175,7 +175,7 @@ static inline int32 ClampToI32(const int64 a)
  * @param b The second scalar
  * @return The absolute difference between the given scalars
  */
-template <typename T> static inline T delta(const T a, const T b) {
+template <typename T> static inline T Delta(const T a, const T b) {
 	return (a < b) ? b - a : a - b;
 }
 

src/disaster_cmd.cpp

@@ -311,7 +311,7 @@ static void DisasterTick_Ufo(Vehicle *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) >= TILE_SIZE) {
 			v->direction = GetDirectionTowards(v, x, y);
 			GetNewVehiclePosResult gp = GetNewVehiclePos(v);
 			SetDisasterVehiclePos(v, gp.x, gp.y, v->z_pos);
@@ -340,7 +340,7 @@ static void DisasterTick_Ufo(Vehicle *v)
 			return;
 		}
 
-		dist = delta(v->x_pos, u->x_pos) + delta(v->y_pos, u->y_pos);
+		dist = Delta(v->x_pos, u->x_pos) + Delta(v->y_pos, u->y_pos);
 
 		if (dist < TILE_SIZE && !(u->vehstatus & VS_HIDDEN) && u->breakdown_ctr == 0) {
 			u->breakdown_ctr = 3;
@@ -567,7 +567,7 @@ static void DisasterTick_Big_Ufo(Vehicle *v)
 	if (v->current_order.dest == 1) {
 		int x = TileX(v->dest_tile) * TILE_SIZE + TILE_SIZE / 2;
 		int y = TileY(v->dest_tile) * TILE_SIZE + TILE_SIZE / 2;
-		if (delta(v->x_pos, x) + delta(v->y_pos, y) >= 8) {
+		if (Delta(v->x_pos, x) + Delta(v->y_pos, y) >= 8) {
 			v->direction = GetDirectionTowards(v, x, y);
 
 			GetNewVehiclePosResult gp = GetNewVehiclePos(v);
@@ -585,7 +585,7 @@ static void DisasterTick_Big_Ufo(Vehicle *v)
 
 		FOR_ALL_VEHICLES(u) {
 			if (u->type == VEH_TRAIN || u->type == VEH_ROAD) {
-				if (delta(u->x_pos, v->x_pos) + delta(u->y_pos, v->y_pos) <= 12 * TILE_SIZE) {
+				if (Delta(u->x_pos, v->x_pos) + Delta(u->y_pos, v->y_pos) <= 12 * TILE_SIZE) {
 					u->breakdown_ctr = 5;
 					u->breakdown_delay = 0xF0;
 				}
@@ -617,7 +617,7 @@ static void DisasterTick_Big_Ufo(Vehicle *v)
 	} else if (v->current_order.dest == 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) >= TILE_SIZE) {
 			v->direction = GetDirectionTowards(v, x, y);
 			GetNewVehiclePosResult gp = GetNewVehiclePos(v);
 			SetDisasterVehiclePos(v, gp.x, gp.y, v->z_pos);
@@ -667,7 +667,7 @@ static void DisasterTick_Big_Ufo_Destroyer(Vehicle *v)
 
 	if (v->current_order.dest == 0) {
 		u = GetVehicle(v->u.disaster.big_ufo_destroyer_target);
-		if (delta(v->x_pos, u->x_pos) > TILE_SIZE) return;
+		if (Delta(v->x_pos, u->x_pos) > TILE_SIZE) return;
 		v->current_order.dest = 1;
 
 		CreateEffectVehicleRel(u, 0, 7, 8, EV_EXPLOSION_LARGE);

src/industry_cmd.cpp

@@ -1290,7 +1290,7 @@ static bool CheckCanTerraformSurroundingTiles(TileIndex tile, uint height, int i
 			return false;
 
 		/* Don't allow too big of a change if this is the sub-tile check */
-		if (internal != 0 && delta(curh, height) > 1) return false;
+		if (internal != 0 && Delta(curh, height) > 1) return false;
 
 		/* Different height, so the surrounding tiles of this tile
 		 *  has to be correct too (in level, or almost in level)

src/map.cpp

@@ -184,8 +184,8 @@ extern const TileIndexDiffC _tileoffs_by_dir[] = {
  */
 uint DistanceManhattan(TileIndex t0, TileIndex t1)
 {
-	const uint dx = delta(TileX(t0), TileX(t1));
-	const uint dy = delta(TileY(t0), TileY(t1));
+	const uint dx = Delta(TileX(t0), TileX(t1));
+	const uint dy = Delta(TileY(t0), TileY(t1));
 	return dx + dy;
 }
 
@@ -216,8 +216,8 @@ uint DistanceSquare(TileIndex t0, TileIndex t1)
  */
 uint DistanceMax(TileIndex t0, TileIndex t1)
 {
-	const uint dx = delta(TileX(t0), TileX(t1));
-	const uint dy = delta(TileY(t0), TileY(t1));
+	const uint dx = Delta(TileX(t0), TileX(t1));
+	const uint dy = Delta(TileY(t0), TileY(t1));
 	return max(dx, dy);
 }
 
@@ -232,8 +232,8 @@ uint DistanceMax(TileIndex t0, TileIndex t1)
  */
 uint DistanceMaxPlusManhattan(TileIndex t0, TileIndex t1)
 {
-	const uint dx = delta(TileX(t0), TileX(t1));
-	const uint dy = delta(TileY(t0), TileY(t1));
+	const uint dx = Delta(TileX(t0), TileX(t1));
+	const uint dy = Delta(TileY(t0), TileY(t1));
 	return dx > dy ? 2 * dx + dy : 2 * dy + dx;
 }
 

src/news_gui.cpp

@@ -220,7 +220,7 @@ static void NewsWindowProc(Window *w, WindowEvent *e)
 		if (w->viewport != NULL)
 			w->viewport->top += y - w->top;
 
-		diff = delta(w->top, y);
+		diff = Delta(w->top, y);
 		w->top = y;
 
 		SetDirtyBlocks(w->left, w->top - diff, w->left + w->width, w->top + w->height);

src/npf.cpp

@@ -40,8 +40,8 @@ static const uint _trackdir_length[TRACKDIR_END] = {
  */
 static uint NPFDistanceTrack(TileIndex t0, TileIndex t1)
 {
-	const uint dx = delta(TileX(t0), TileX(t1));
-	const uint dy = delta(TileY(t0), TileY(t1));
+	const uint dx = Delta(TileX(t0), TileX(t1));
+	const uint dy = Delta(TileY(t0), TileY(t1));
 
 	const uint straightTracks = 2 * min(dx, dy); /* The number of straight (not full length) tracks */
 	/* OPTIMISATION:

src/pathfind.cpp

@@ -663,8 +663,8 @@ static const uint16 _is_upwards_slope[15] = {
 
 static uint DistanceMoo(TileIndex t0, TileIndex t1)
 {
-	const uint dx = delta(TileX(t0), TileX(t1));
-	const uint dy = delta(TileY(t0), TileY(t1));
+	const uint dx = Delta(TileX(t0), TileX(t1));
+	const uint dy = Delta(TileY(t0), TileY(t1));
 
 	const uint straightTracks = 2 * min(dx, dy); // The number of straight (not full length) tracks
 	/* OPTIMISATION:

src/tree_cmd.cpp

@@ -164,7 +164,7 @@ void PlaceTreeAtSameHeight(TileIndex tile, uint height)
 			continue;
 
 		/* Not too much height difference */
-		if (delta(GetTileZ(cur_tile), height) > 2) continue;
+		if (Delta(GetTileZ(cur_tile), height) > 2) continue;
 
 		/* Place one tree and quit */
 		PlaceTree(cur_tile, r);

src/viewport.cpp

@@ -967,7 +967,7 @@ static void DrawTileSelection(const TileInfo *ti)
 				side = 0;
 			} else {
 				TileIndex start = TileVirtXY(_thd.selstart.x, _thd.selstart.y);
-				side = delta(delta(TileX(start), TileX(ti->tile)), delta(TileY(start), TileY(ti->tile)));
+				side = Delta(Delta(TileX(start), TileX(ti->tile)), Delta(TileY(start), TileY(ti->tile)));
 			}
 
 			DrawAutorailSelection(ti, _AutorailType[dir][side]);
@@ -2730,8 +2730,8 @@ calc_heightdiff_single_direction:;
 
 				TileIndex t0 = TileVirtXY(sx, sy);
 				TileIndex t1 = TileVirtXY(x, y);
-				uint dx = delta(TileX(t0), TileX(t1)) + 1;
-				uint dy = delta(TileY(t0), TileY(t1)) + 1;
+				uint dx = Delta(TileX(t0), TileX(t1)) + 1;
+				uint dy = Delta(TileY(t0), TileY(t1)) + 1;
 				byte index = 0;
 				uint64 params[3];