Map backspace on world clearing

main.cpp

@@ -18,6 +18,27 @@ void putBloc(blocType bloc, float world[HEIGHT][WIDTH][BLOC_TOTAL], int y, int x
 		}
 }
 
+void clearWorld(float world[HEIGHT][WIDTH][BLOC_TOTAL]) {
+	// Erase everything
+	for (int j(0); j < HEIGHT; j++)
+		for (int i(0); i < WIDTH; i++) {
+			for (int bloc(0); bloc < BLOC_TOTAL; bloc++)
+				world[j][i][bloc] = 0.0f;
+		}
+
+	// Bottom water line
+	const float waterLevel = 1.0f;
+	for (int j(0); j < HEIGHT; j++)
+		for (int i(0); i < WIDTH; i++)
+			world[j][i][WATER] = waterLevel / (HEIGHT - j);
+
+	// Top mountain line
+	const float mountainLevel = 10.0f;
+	for (int j(0); j < HEIGHT; j++)
+		for (int i(0); i < WIDTH; i++)
+			world[j][i][MOUNTAIN] = mountainLevel / (1 + j) / (1 + j);
+}
+
 void drawWorld(float world[HEIGHT][WIDTH][BLOC_TOTAL], SDL_Surface* tileSet[], SDL_Surface* out) {
 	SDL_Rect pos({0, 0, 0, 0});
 	int indexOfMax;
@@ -76,24 +97,7 @@ int main()
 
 	// [2.4] Create world
 	float world[HEIGHT][WIDTH][BLOC_TOTAL];
-
-	// Clear world
-	for (int j(0); j < HEIGHT; j++)
-		for (int i(0); i < WIDTH; i++)
-			for (int t(0); t < BLOC_TOTAL; t++)
-				world[j][i][t] = 0.0f;
-
-	// Basic water
-	const float waterLevel = 1.0f;
-	for (int j(0); j < HEIGHT; j++)
-		for (int i(0); i < WIDTH; i++)
-			world[j][i][WATER] = waterLevel / (HEIGHT - j);
-
-	// Top mountain line
-	const float mountainLevel = 10.0f;
-	for (int j(0); j < HEIGHT; j++)
-		for (int i(0); i < WIDTH; i++)
-			world[j][i][MOUNTAIN] = mountainLevel / (1 + j) / (1 + j);
+	clearWorld(world);
 
 	// [2.5] Surface containers
 	SDL_Surface* tileSet[BLOC_TOTAL] = {water, mountain, grass, desert};
@@ -117,9 +121,16 @@ int main()
 					done = true;
 					break;
 				case SDL_KEYDOWN:
-					if (event.key.keysym.sym == SDLK_ESCAPE)
-						done = true;
-					break;
+					switch(event.key.keysym.sym)
+					{
+						case SDLK_ESCAPE:
+							done = true;
+							break;
+						case SDLK_BACKSPACE:
+							clearWorld(world);
+							drawWorld(world, tileSet, map);
+							break;
+					}
 				case SDL_MOUSEMOTION:
 					cursorPos.x = event.motion.x / BLOC_SIZE;
 					cursorPos.y = event.motion.y / BLOC_SIZE;