Add World and multi-chunk rendering

- More than 1 chunk can now be rendered with the help of the world
  struct
- Block coords are now in world space, not local space
- Engine init code cleaned up for cleaner world/chunk handling

1 files changed, 11 insertions, 5 deletions

diff --git a/src/chunk.h b/src/chunk.h
index 87c33fa..4d06f5f 100644
--- a/src/chunk.h
+++ b/src/chunk.h
@@ -1,21 +1,27 @@
 #pragma once
 #include "block.h"
 #include "world.h"
-#include "junk/vector.h"
 #include <stdint.h>
-enum biome {
-    JUNK_BIOME_PLAINS,
-};
 #define CHUNK_WIDTH 16
 #define CHUNK_LENGTH 16
 #define CHUNK_HEIGHT 128
 
+enum biome {
+    JUNK_BIOME_PLAINS,
+};
+
+
+//NOTE: Forward declare world here. There is a circular dependency between 
+// chunk and world, and the order in which compiler sees them causes issues.
+// World.c compiles -> includes world.h -> first line is include chunk.h -> struct world
+// is used here, which messes it up. Forward declare to avoid errors
+struct world;
 struct chunk {
     struct block* blocks[CHUNK_WIDTH][CHUNK_LENGTH][CHUNK_HEIGHT];
     enum biome biome;
     vec2 coord;
 };
 
-int chunk_gen(struct world* world, struct chunk* chunk);
+int chunk_gen(struct world* wld, vec2 coord, struct chunk** chunk);
 int chunk_gen_structures(void* neighbor_data, struct chunk* chunk);
 int chunk_gen_terrain(void* neighbor_data, struct chunk* chunk);