kein branch lol aber ULTRA PERFORMANCE

IsometricMap/isometricMap.c

@@ -16,8 +16,8 @@ IsometricMap * IsometricMapInit(int layer){
     //map->tileTextures[0] = LoadTexture("assets/desert.png");
     //map->tileTextures[1] = LoadTexture("assets/bigtower.png");
 
-    map->width = 200;
-    map->height = 200;
+    map->width = 500;
+    map->height = 500;
     map->textureWidth = map->tileTextures[0].width;
     map->textureHeight = map->tileTextures[0].height;
     map->worldPixelWidth = map->width * map->textureWidth;
@@ -34,6 +34,8 @@ IsometricMap * IsometricMapInit(int layer){
 
     int i = 0;
     int j = 0;
+    int quarterTextureSize = map->textureWidth / 4;
+    int halfTextureSize = map->textureWidth / 2;
     for(i=0; i < map->width; i++){
         for(j=0; j < map->height; j++){
             Tile *tmp = (Tile *) malloc(sizeof(Tile));
@@ -42,6 +44,14 @@ IsometricMap * IsometricMapInit(int layer){
             tmp->x = i;
             tmp->y = j;
             tmp->z = layer;
+
+            Vector2 *offset = IsometricMapCalcOffsetForTileAtEfficient(i,j, halfTextureSize, quarterTextureSize);
+            // the higher the layer the higher it needs to be drawed
+            offset->y -= layer * quarterTextureSize;
+            tmp->offsetX = offset->x;
+            tmp->offsetY = offset->y;
+            free(offset);
+            
             tiles[i][j] = tmp;
         }
     }

IsometricMap/isometricRenderer.c

@@ -7,10 +7,10 @@
 #include "../game.h"
 
 // @param deprecated
-void IsometricRendererDrawMap(IsometricRenderer *renderer, int height){
+void IsometricRendererDrawMap(IsometricRenderer *renderer, int height)
+{
 
     printf("WARNING: Using deprecated Function IsometricRendererDrawMap!\n");
-    
 
     float originX = 0.0f;
     float originY = 0.0f;
@@ -19,28 +19,33 @@ void IsometricRendererDrawMap(IsometricRenderer *renderer, int height){
     int j = 0;
 
     int amount = 1;
-    for(i=0; i<=height; i++){
-        for(j=0; j<amount; j++){
-            float x = originX - amount/2 * renderer->texture->width  + j * renderer->texture->width;
-            if(amount%2 == 1){
-                x -= renderer->texture->width/2;
+    for (i = 0; i <= height; i++)
+    {
+        for (j = 0; j < amount; j++)
+        {
+            float x = originX - amount / 2 * renderer->texture->width + j * renderer->texture->width;
+            if (amount % 2 == 1)
+            {
+                x -= renderer->texture->width / 2;
             }
-            float y = i * renderer->texture->height/4;
+            float y = i * renderer->texture->height / 4;
             DrawTexture(*renderer->texture, x, y, WHITE);
-
         }
-        if(i < height/2){
+        if (i < height / 2)
+        {
             amount++;
         }
-        else{
+        else
+        {
             amount--;
         }
-
     }
 }
 
 // parameter could be changed to only IsometricMap[]
-void IsometricRendererRenderIsometricMap(Game *game){
+void IsometricRendererRenderIsometricMap(Game *game)
+{
+    /*
     int n = 0;
     int i = 0;
     int j = 0;
@@ -51,17 +56,74 @@ void IsometricRendererRenderIsometricMap(Game *game){
                 if(game->layers[n]->tiles[i][j]->textureId == -1){
                 }
                 else{
-                    int quarterTextureSize = game->layers[n]->textureWidth / 4;
-                    int halfTextureSize = game->layers[n]->textureWidth / 2;
-                    // SHOULD BE SET ONCE INITIALLY
-                    Vector2 *offset = IsometricMapCalcOffsetForTileAtEfficient(i,j, halfTextureSize, quarterTextureSize);
-                    // the higher the layer the higher it needs to be drawed
-                    offset->y -= n * quarterTextureSize;
-                
-                    int textureId = game->layers[n]->tiles[i][j]->textureId;
-                    
-                    DrawTexture(game->layers[n]->tileTextures[textureId], offset->x, offset->y, WHITE);
-                    free(offset);
+                    DrawTexture(
+                        game->layers[n]->tileTextures[game->layers[n]->tiles[i][j]->textureId],
+                        game->layers[n]->tiles[i][j]->offsetX,
+                        game->layers[n]->tiles[i][j]->offsetY,
+                        WHITE);
+                }
+            }
+        }
+    }
+    */
+
+   int windowWidth = GetScreenWidth();
+   int windowHeight = GetScreenHeight();
+
+    // HARDCODED
+    Vector2 topleft = {0, 0};
+    IsometricMapProject(game->layers[0], game->camera, topleft.x, topleft.y, &topleft);
+    Vector2 topright = {windowWidth, 0};
+    IsometricMapProject(game->layers[0], game->camera, topright.x, topright.y, &topright);
+    Vector2 botleft = {0, windowHeight};
+    IsometricMapProject(game->layers[0], game->camera, botleft.x, botleft.y, &botleft);
+    Vector2 botright = {windowWidth, windowHeight};
+    IsometricMapProject(game->layers[0], game->camera, botright.x, botright.y, &botright);
+
+    printf("%f\n", topright.y);
+    // drawing some extra corner tiles
+    // if extraTiles == 0 you can see flickering in the corners
+    int extraTiles = 1;
+    int n = 0;
+    int itmp = (int)(topleft.x / game->layers[0]->textureWidth) - extraTiles;
+    int jtmp = (int)(topright.y / game->layers[0]->textureHeight) - extraTiles;
+    int maxI = (int)(botright.x / game->layers[0]->textureWidth) + extraTiles;
+    int maxJ = (int)(botleft.y / game->layers[0]->textureHeight) + extraTiles;
+    if (itmp < 0)
+    {
+        itmp = 0;
+    }
+    if (jtmp < 0)
+    {
+        jtmp = 0;
+    }
+    if (maxI > game->layers[0]->width)
+    {
+        maxI = game->layers[0]->width;
+    }
+    if (maxJ > game->layers[0]->height)
+    {
+        maxJ = game->layers[0]->height;
+    }
+
+    int i = 0;
+    int j = 0;
+    for (n = 0; n < 10; n++)
+    {
+        for (i = itmp; i < maxI; i++)
+        {
+            for (j = jtmp; j < maxJ; j++)
+            {
+                if (game->layers[n]->tiles[i][j]->textureId == -1)
+                {
+                }
+                else
+                {
+                    DrawTexture(
+                        game->layers[n]->tileTextures[game->layers[n]->tiles[i][j]->textureId],
+                        game->layers[n]->tiles[i][j]->offsetX,
+                        game->layers[n]->tiles[i][j]->offsetY,
+                        WHITE);
                 }
             }
         }

IsometricMap/tile.h

@@ -8,6 +8,8 @@ typedef struct Tile{
     int x;
     int y;
     int z;
+    int offsetX;
+    int offsetY;
 } Tile;
 
 #endif