From ab6501461a12894795661914096704451c343344 Mon Sep 17 00:00:00 2001
From: davidovski <david@davidovski.xyz>
Date: Mon, 10 Jul 2023 00:22:35 +0100
Subject: load tilemap from file

---
 tiled.c | 52 +++++++++++-----------------------------------------
 1 file changed, 11 insertions(+), 41 deletions(-)

(limited to 'tiled.c')

diff --git a/tiled.c b/tiled.c
index 220043d..715a91d 100644
--- a/tiled.c
+++ b/tiled.c
@@ -1,66 +1,35 @@
 #include <raylib.h>
-#include <stdlib.h>
 #include <stdio.h>
-#include <wctype.h>
+
+#include "tiledfile.h"
 
 #define SCREEN_W 1280
 #define SCREEN_H 720
 
-#define MAP_W 16
-#define MAP_H 4
-
-const int tilemap[MAP_H * MAP_W] = {
-   0, 0, 0, 0, 0, 0, 3, 3, 3, 0, 0, 0, 0, 0, 0, 0,
-   0, 3, 3, 0, 0, 3, 1, 1, 1, 3, 0, 0, 0, 0, 0, 0,
-   3, 1, 1, 3, 3, 1, 2, 2, 2, 1, 3, 3, 3, 0, 0, 3,
-   1, 2, 2, 1, 1, 2, 4, 4, 4, 2, 1, 1, 1, 3, 3, 1
-};                          
-
 const int atlasSize[2] = {2, 2};
 
-Texture2D processTilemapTexture(const int * tilemap, int width, int height) {
-    Color *pixels = (Color*) malloc(width * height * sizeof(Color));
-
-    for (int y = 0; y < height; y++) {
-        for (int x = 0; x < width; x++) {
-            int tile = tilemap[y*width + x];
-            pixels[y*width + x] = (Color){
-                (int) tile, 0, 0, 0
-            };
-        }
-    }
-
-    Image checkedIm = {
-        .data = pixels,
-        .width = width,
-        .height = height,
-        .format = PIXELFORMAT_UNCOMPRESSED_R8G8B8A8,
-        .mipmaps = 1
-    };
-
-    Texture2D checked = LoadTextureFromImage(checkedIm);
-    UnloadImage(checkedIm);
-
-    return checked;
-}
-
 int main() {
     InitWindow(SCREEN_W, SCREEN_H, "tiled");
 
     Shader shader = LoadShader(0, "tiled.glsl");
 
-    Texture2D processedTilemap = processTilemapTexture(tilemap, MAP_W, MAP_H);
+    Texture2D tilemap = loadTileMap("map.tiles");
+
     Texture atlas = LoadTexture("tiled.png");
     RenderTexture2D target = LoadRenderTexture(SCREEN_W, SCREEN_H);
 
     float resolution[2] = {SCREEN_W, SCREEN_H};
     float offset[2] = {0, 0};
     float zoom = 16.0f;
+    int mapSize[2] = {tilemap.width, tilemap.height};
+
 
     int resolutionLoc = GetShaderLocation(shader, "resolution");
     int locationLoc = GetShaderLocation(shader, "offset");
     int zoomLoc = GetShaderLocation(shader, "zoom");
+
     int atlasSizeLoc = GetShaderLocation(shader, "atlasSize");
+    int mapSizeLoc = GetShaderLocation(shader, "mapSize");
 
     int textureLoc = GetShaderLocation(shader, "texture1");
     int tilemapLoc = GetShaderLocation(shader, "texture2");
@@ -77,7 +46,9 @@ int main() {
         SetShaderValue(shader, resolutionLoc, resolution, SHADER_UNIFORM_VEC2);
         SetShaderValue(shader, locationLoc, &offset, SHADER_UNIFORM_VEC2);
         SetShaderValue(shader, zoomLoc, &zoom, SHADER_UNIFORM_FLOAT);
+
         SetShaderValue(shader, atlasSizeLoc, &atlasSize, SHADER_UNIFORM_IVEC2);
+        SetShaderValue(shader, mapSizeLoc, &tilemap.width, SHADER_UNIFORM_IVEC2);
 
         BeginDrawing();
 
@@ -89,12 +60,11 @@ int main() {
 
         BeginShaderMode(shader);
             SetShaderValueTexture(shader, textureLoc, atlas);
-            SetShaderValueTexture(shader, tilemapLoc, processedTilemap);
+            SetShaderValueTexture(shader, tilemapLoc, tilemap);
 
             // draw the base image to texture0
             DrawTexture(target.texture, 0, 0, WHITE);
         EndShaderMode();
-            DrawTexture(processedTilemap, 0, 0, WHITE);
 
             DrawText(TextFormat("FPS: %d", GetFPS()), 12, 12, 24, DARKGRAY);
 
-- 
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