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, 28 insertions, 0 deletions

diff --git a/src/world.c b/src/world.c
new file mode 100644
index 0000000..e81f100
--- /dev/null
+++ b/src/world.c
@@ -0,0 +1,28 @@
+#include "world.h"
+#include <stdlib.h>
+#include <string.h>
+
+int world_init(int32_t seed, struct world** world) {
+    srand(seed);
+    struct world* wld = malloc(sizeof(struct world));
+    memset(wld, 0, sizeof(struct world));
+    wld->seed = seed;
+    for (int i = 0; i < WORLD_WIDTH; i++) {
+        for (int j = 0; j < WORLD_LENGTH; j++) {
+            struct chunk* chunk;
+            vec2 coords = { i, j };
+            chunk_gen(wld, coords, &chunk);
+            wld->chunks[i][j] = chunk;
+
+        }
+    }
+    *world = wld;
+    return 0;
+}
+
+int world_get_chunk(struct world* world, vec2 coord, struct chunk** chunk) {
+    int x = (int)coord[0] % WORLD_WIDTH;
+    int y = (int)coord[1] % WORLD_LENGTH;
+    *chunk = world->chunks[x][y];
+    return 0;
+}