Fixed the map view on the left so it shows the correct visible squares.

raycaster.cpp

@@ -69,23 +69,12 @@ void draw_line(sf::RenderWindow &window, sf::Vector2f start, sf::Vector2f end) {
   window.draw(line, 2, sf::Lines);
 }
 
-void ray_casting(sf::RenderWindow &window, Matrix& map) {
-  float start_angle = player_angle - HALF_FOV;
-
-  for(int ray = 0; ray < CASTED_RAYS; ray++, start_angle += STEP_ANGLE)
-  {
-    for(int depth = 1; depth < MAX_DEPTH; depth++) {
-      float target_x = player_x - std::sin(start_angle) * depth;
-      float target_y = player_y + std::cos(start_angle) * depth;
-
-      int col = int(target_x / TILE_SIZE);
-      int row = int(target_y / TILE_SIZE);
-
-      if(map[row][col] == 1) {
-        draw_map_rect(window, col & TILE_SIZE, row * TILE_SIZE, 100);
-
-        draw_line(window, {player_x, player_y}, {target_x, target_y});
+void draw_map_rays(sf::RenderWindow &window, int col, int row, sf::Vector2f target) {
+  draw_map_rect(window, col, row, 100);
+  draw_line(window, {player_x, player_y}, target);
+}
 
+void draw_3d_view(sf::RenderWindow &window, int depth, float start_angle, int ray) {
   uint8_t color = 255 / (1 + depth * depth * 0.0001);
 
   float fixed_depth = depth * std::cos(player_angle - start_angle);
@@ -100,6 +89,23 @@ void ray_casting(sf::RenderWindow &window, Matrix& map) {
       {SCREEN_HEIGHT + ray * SCALE, (SCREEN_HEIGHT / 2) - wall_height / 2},
       {SCALE, wall_height},
       color);
+}
+
+void ray_casting(sf::RenderWindow &window, Matrix& map) {
+  float start_angle = player_angle - HALF_FOV;
+
+  for(int ray = 0; ray < CASTED_RAYS; ray++, start_angle += STEP_ANGLE)
+  {
+    for(int depth = 1; depth < MAX_DEPTH; depth++) {
+      float target_x = player_x - std::sin(start_angle) * depth;
+      float target_y = player_y + std::cos(start_angle) * depth;
+
+      int col = int(target_x / TILE_SIZE);
+      int row = int(target_y / TILE_SIZE);
+
+      if(map[row][col] == 1) {
+        draw_map_rays(window, col, row, {target_x, target_y});
+        draw_3d_view(window, depth, start_angle, ray);
         break;
       }
     }