From 9c8b526991b68439284bee0936b90079943b249b Mon Sep 17 00:00:00 2001
From: davidovski <david@davidovski.xyz>
Date: Mon, 10 Jul 2023 17:01:01 +0100
Subject: tidied code for tilefile

---
 src/tiledfile.c    | 46 +++++++++++++++++-----------------------------
 tools/createmap.py |  4 ++--
 2 files changed, 19 insertions(+), 31 deletions(-)

diff --git a/src/tiledfile.c b/src/tiledfile.c
index 0b37bae..ada29e5 100644
--- a/src/tiledfile.c
+++ b/src/tiledfile.c
@@ -5,19 +5,7 @@
 const int i = 1;
 #define is_bigendian() ( (*(char*)&i) == 0 )
 
-void processTilemapTexture(Texture2D *loc, int * tilelayout, int width, int height) {
-    Color *pixels = (Color*) malloc(width * height * sizeof(Color));
-    printf("%d x %d\n", width, height);
-
-    for (int y = 0; y < height; y++) {
-        for (int x = 0; x < width; x++) {
-            int tile = tilelayout[y*width + x];
-            pixels[y*width + x] = (Color){
-                (int) tile, 0, 0, 0
-            };
-        }
-    }
-
+void textureFromPixels(Texture2D *loc, Color *pixels, int width, int height) {
     Image checkedIm = {
         .data = pixels,
         .width = width,
@@ -28,25 +16,23 @@ void processTilemapTexture(Texture2D *loc, int * tilelayout, int width, int heig
 
     *loc = LoadTextureFromImage(checkedIm);
     UnloadImage(checkedIm);
-
 }
 
-void readrgba(Texture2D *loc, int width, int height, FILE *file) {
-    char *pixels = malloc(width*height*4);
-    printf("%d\n", width*height*4);
-    fread(pixels, (size_t) width*height*4, (size_t) 1, file);
+void processTilemapTexture(Texture2D *loc, int * tilelayout, int width, int height) {
+    Color *pixels = (Color*) malloc(width * height * sizeof(Color));
 
-    Image checkedIm = {
-        .data = pixels,
-        .width = width,
-        .height = height,
-        .format = PIXELFORMAT_UNCOMPRESSED_R8G8B8A8,
-        .mipmaps = 1
-    };
+    for (int i = 0; i < width*height; i++) {
+        pixels[i] = (Color){ tilelayout[i], 0, 0, 0 };
+    }
 
-    *loc = LoadTextureFromImage(checkedIm);
-    UnloadImage(checkedIm);
+    textureFromPixels(loc, pixels, width, height);
+}
 
+//! read rgba image from file
+void readrgba(Texture2D *loc, int width, int height, FILE *file) {
+    Color *pixels = malloc(width*height*4);
+    fread(pixels, (size_t) width*height*4, (size_t) 1, file);
+    textureFromPixels(loc, pixels, width, height);
 }
 
 
@@ -69,7 +55,7 @@ int readb(char * out, size_t noBytes, FILE * file) {
     return 0;
 }
 
-
+//! load tilemap data from file
 void loadTileMap(char * filename, Texture2D * tilemap, Texture2D * atlas, int * atlasSize) {
     int width, height, tilebytes, tilesize, atlasWidth, atlasHeight;
     int * tilelayout;
@@ -86,9 +72,11 @@ void loadTileMap(char * filename, Texture2D * tilemap, Texture2D * atlas, int *
     // 4 bytes saying how big each tile is
     readb((char *)&tilebytes, 4, file);
 
-    fprintf(stderr, "loading %d bytes per tile for %d tiles\n", tilebytes, width*height);
+    fprintf(stderr, "loading %d bytes per tile for %d (%dx%d) tiles\n", tilebytes, width*height, width, height);
     tilelayout = malloc(width*height*tilebytes);
     fread(tilelayout, tilebytes, width*height, file);
+
+    // create a texture from the tilelayout data
     processTilemapTexture(tilemap, tilelayout, width, height);
 
     // read the pixel size of each tile
diff --git a/tools/createmap.py b/tools/createmap.py
index 36f6ca9..6deb0aa 100755
--- a/tools/createmap.py
+++ b/tools/createmap.py
@@ -8,8 +8,8 @@ outfile = "map.tiles"
 ATLASFILE = "atlas.png"
 
 TILESIZE = 16
-WIDTH = 1024
-HEIGHT = 1024
+WIDTH = 2**10
+HEIGHT = 2**11
 
 # create atlas bytes
 image = Image.open(ATLASFILE).convert("RGBA")
-- 
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