multiple textures

const.h

@@ -19,7 +19,7 @@ typedef struct Vertex2 {
 #define CHUNK_RADIUS_V 4 // 4
 
 #define TEXT_GAP_H 1 / 3.0
-#define TEXT_GAP_V 1 / 1.0
+#define TEXT_GAP_V 1 / 6.0
 
 #define CHUNK_DIAMETER_H (CHUNK_RADIUS_H * 2 + 1)
 #define CHUNK_DIAMETER_V (CHUNK_RADIUS_V * 2 + 1)

cubes.c

@@ -32,11 +32,12 @@ void gen_face(Vertex *cube, int i, int x, int y, int z, int x2, int y2, int z2,
   if (is_text) {
     a.pos[i]--;
     int exists = 0;
-    exists = (cube_exists(x, y, z, dat, ci, read_order) !=
+    int type = cube_exists(x, y, z, dat, ci, read_order);
-              cube_exists(a.pos[0], a.pos[1], a.pos[2], dat, ci, read_order));
+    int typeB = cube_exists(a.pos[0], a.pos[1], a.pos[2], dat, ci, read_order);
+    exists = ((!!type) != (!!typeB));
 
-    a2.pos[0] = exists ? TEXT_GAP_H * i : -1.0;
+    a2.pos[0] = exists ? TEXT_GAP_H * (type ? (type - 1) : (typeB-1)) : -1.0;
-    a2.pos[1] = exists ? TEXT_GAP_V * i : -1.0;
+    a2.pos[1] = exists ? TEXT_GAP_V * (i + (!!type) * 3) : -1.0;
     a2.pos[2] = 0;
     if (!exists) {
       *j = (*j - 6 * a3);
@@ -213,7 +214,7 @@ int gen_cubes(Vertex *cube, Vertex *text, Vertex *cubeO, Vertex *textO, int x,
         if (cached) {
           thread_return[a2] = i2[a2 / a3];
           thread_id[a2] = -1;
-        } else if (pos.pos[0] < 0 || pos.pos[1] < 0 || pos.pos[2] < 0 || pos.pos[1] < (y * 0.93)) {
+        } else if (pos.pos[0] < 0 || pos.pos[1] < 0 || pos.pos[2] < 0 || pos.pos[1] < ((y - CHUNK_LENGTH*CHUNK_RADIUS_V) * 1.1)) {
           thread_return[a2] = -1;
           thread_id[a2] = -1;
         } else {

gen.c

@@ -139,7 +139,7 @@ Chunk fetch_chunk(int x, int y, int z, int ci, int h, int r_order) {
 
       for (int y2 = 0; y2 < CHUNK_LENGTH; y2++) {
         int y3 = y2 + y * CHUNK_LENGTH;
-        chunk.blocks[c] = (y3 < h);
+        chunk.blocks[c] = (y3 < h) ? (((int)((hp + 64.0) * 2.98) % 3) + 1) : 0;
         c++;
       }
     }
@@ -182,5 +182,5 @@ int cube_exists(int x, int y, int z, Chunk dat, int ci, int r_order) {
   int h = dat.blocks[(y % CHUNK_LENGTH) + (z % CHUNK_LENGTH) * CHUNK_LENGTH +
                      (x % CHUNK_LENGTH) * CHUNK_LENGTH * CHUNK_LENGTH];
 
-  return !!h;
+  return h;
 }