Got rid of the wolf3d textures and now using 256px textures that are open source. Added a simple portal that can go on the floor.

sfmlcaster.cpp

@@ -11,23 +11,22 @@
 using matrix::Matrix;
 using namespace fmt;
 
-#define texWidth 64 // must be power of two
-#define texHeight 64 // must be power of two
+#define texWidth 256 // must be power of two
+#define texHeight 256 // must be power of two
 
-
-#define numSprites 3
+#define numSprites 1
 #define numTextures 11
 
 struct Sprite {
   double x;
   double y;
+  double elevation;
   int texture;
 };
 
 //parameters for scaling and moving the sprites
 #define uDiv 1
 #define vDiv 1
-#define vMove 0.0
 
 const int RAY_VIEW_WIDTH=1280;
 const int RAY_VIEW_HEIGHT=720;
@@ -75,9 +74,9 @@ double planeY = 0.66;
 #define gray_color(c) rgba_color(c, c, c, 255)
 
 Sprite SPRITE[numSprites] = {
-  {3.0, 4.5, 8},
-  {3.4, 1.95, 9},
-  {7.34, 5.5, 10}
+   {4.0, 3.55, 0, 8},
+//  {3.4, 1.95, 9},
+//  {7.34, 5.5, 10}
 };
 
 double ZBuffer[RAY_VIEW_WIDTH];
@@ -107,18 +106,15 @@ void load_textures() {
     texture[i].resize(texWidth * texHeight);
   }
 
-  loadImage(texture[0], "pics/eagle.png");
-  loadImage(texture[1], "pics/redbrick.png");
-  loadImage(texture[2], "pics/purplestone.png");
-  loadImage(texture[3], "pics/greystone.png");
-  loadImage(texture[4], "pics/bluestone.png");
-  loadImage(texture[5], "pics/mossy.png");
-  loadImage(texture[6], "pics/wood.png");
-  loadImage(texture[7], "pics/colorstone.png");
-
-  loadImage(texture[8], "pics/barrel.png");
-  loadImage(texture[9], "pics/pillar.png");
-  loadImage(texture[10], "pics/greenlight.png");
+  loadImage(texture[0], "pics/tile16.png");
+  loadImage(texture[1], "pics/tile02.png");
+  loadImage(texture[2], "pics/tile03.png");
+  loadImage(texture[3], "pics/tile32.png");
+  loadImage(texture[4], "pics/tile05.png");
+  loadImage(texture[5], "pics/tile17.png");
+  loadImage(texture[6], "pics/tile10.png");
+  loadImage(texture[7], "pics/tile01.png");
+  loadImage(texture[8], "pics/portal.png");
 }
 
 void draw_sfml_rect(sf::RenderWindow &window, sf::Vector2f pos, sf::Vector2f size, uint8_t color) {
@@ -318,9 +314,10 @@ void ray_casting(sf::RenderWindow &window, Matrix& map) {
   // after sorting the sprites, do the projection
   for(int i = 0; i < numSprites; i++) {
     int sprite_index = spriteOrder[i];
-    double spriteX = SPRITE[sprite_index].x - posX;
-    double spriteY = SPRITE[sprite_index].y - posY;
-    int sprite_texture_number = SPRITE[sprite_index].texture;
+    Sprite& sprite_rec = SPRITE[sprite_index];
+    double spriteX = sprite_rec.x - posX;
+    double spriteY = sprite_rec.y - posY;
+    int sprite_texture_number = sprite_rec.texture;
     auto sprite_texture = texture[sprite_texture_number];
 
     //transform sprite with the inverse camera matrix
@@ -337,7 +334,7 @@ void ray_casting(sf::RenderWindow &window, Matrix& map) {
 
     int spriteScreenX = int((w / 2) * (1 + transformX / transformY));
 
-    int vMoveScreen = int(vMove / transformY);
+    int vMoveScreen = int(sprite_rec.elevation * -1 / transformY);
 
     // calculate the height of the sprite on screen
     //using "transformY" instead of the real distance prevents fisheye