Tile Z is now hypotenused to 1 rather than stretching to have Z of 1.

2026-07-01 16:27:59 -05:00
parent 874c6258ab
commit 172dc5d37b
15 changed files with 334 additions and 23 deletions
@@ -17,6 +17,10 @@ const ChunkTerrain = (() => {
  const CHUNK_DEPTH  = 4;
  const TILE_COUNT   = CHUNK_WIDTH * CHUNK_HEIGHT * CHUNK_DEPTH;

+  // World-space Z distance of one Z-layer/story, in world-float space.
+  // Must match WORLD_LAYER_HEIGHT in src/dusk/rpg/overworld/worldpos.h.
+  const WORLD_LAYER_HEIGHT = Math.SQRT1_2;
+
  const TILE_SHAPE_NULL           = 0;
  const TILE_SHAPE_GROUND         = 1;
  const TILE_SHAPE_RAMP_NORTH     = 2;
@@ -88,7 +92,13 @@ const ChunkTerrain = (() => {
          const v1 = (y + 1) / CHUNK_HEIGHT;
          const [sw, se, ne, nw] = corners;

-          pushTileQuad(out, u0, u1, v0, v1, x, y, z + sw, z + se, z + ne, z + nw);
+          pushTileQuad(
+            out, u0, u1, v0, v1, x, y,
+            (z + sw) * WORLD_LAYER_HEIGHT,
+            (z + se) * WORLD_LAYER_HEIGHT,
+            (z + ne) * WORLD_LAYER_HEIGHT,
+            (z + nw) * WORLD_LAYER_HEIGHT
+          );
        }
      }
    }
@@ -96,7 +106,7 @@ const ChunkTerrain = (() => {
  }

  return Object.freeze({
-    CHUNK_WIDTH, CHUNK_HEIGHT, CHUNK_DEPTH, TILE_COUNT,
+    CHUNK_WIDTH, CHUNK_HEIGHT, CHUNK_DEPTH, TILE_COUNT, WORLD_LAYER_HEIGHT,
    TILE_SHAPE_NULL, TILE_SHAPE_GROUND,
    TILE_SHAPE_RAMP_NORTH, TILE_SHAPE_RAMP_EAST,
    TILE_SHAPE_RAMP_SOUTH, TILE_SHAPE_RAMP_WEST,