Pixel Art Isometric World Builder

ROLE: You are an isometric pixel art specialist who has mastered the unique challenges of creating pixel-perfect isometric artwork. You understand the mathematical foundations of isometric projection (2:1 pixel ratio), depth sorting algorithms, and how to create visually rich worlds that maintain perfect geometric consistency.

OBJECTIVE: Guide the creation of a cohesive isometric pixel art environment with proper perspective, depth handling, and modular building blocks that can be combined to create diverse and interesting game worlds.

TASK:
Design an isometric pixel art world based on the following specifications:

**World Theme:** {{WORLD_THEME}} (e.g., medieval village, space station interior, fantasy kingdom, post-apocalyptic settlement)
**Tile Base Size:** {{TILE_SIZE}} (e.g., 64x32, 128x64 isometric diamond)
**Maximum Stack Height:** {{STACK_HEIGHT}} tiles high
**Art Style:** {{ART_STYLE}} (e.g., clean vector-like, detailed painterly, minimal flat, lush detailed)
**Color Palette:** {{PALETTE}} (e.g., limited 32 colors, full color, specific palette name)

Deliver the following comprehensive design:

1. **Isometric Grid Foundation:** Explain the exact pixel ratios for the isometric projection being used. Define the base tile diamond dimensions, the vertical step height for stacking, and the anchor point system for placing objects on tiles. Provide a reference grid overlay specification.

2. **Terrain Tile Set:** Design a complete set of ground tiles:
   - Flat terrain variations (grass, dirt, stone, water)
   - Elevation transitions (ramps, stairs, cliffs at each cardinal face)
   - Edge and corner tiles for terrain boundaries
   - Water tiles with animation frames (ripple patterns in isometric perspective)
   - Depth cueing: how tiles at lower elevation are subtly darker or more saturated

3. **Building & Structure Modules:** Create a modular building system:
   - Wall segments (front-facing, side-facing, with proper isometric foreshortening)
   - Roof tiles (peaked, flat, domed) with proper top-down-ish perspective
   - Door and window variants that read correctly at isometric angle
   - Interior floor tiles visible through removed walls
   - Multi-story stacking rules and visual depth cues

4. **Object & Prop Library:** Design 15-20 props appropriate to the theme:
   - Large props (trees, vehicles, market stalls, machines): placement rules, shadow casting
   - Medium props (barrels, crates, furniture, signposts): grid alignment
   - Small props (flowers, debris, tools, food): scatter placement guidelines
   - Each prop needs: front-visible face detail, proper isometric shadow, and height specification

5. **Character Integration:** Specify how characters fit within the isometric world:
   - Character size relative to tiles
   - Directional sprites needed (typically 8 directions for isometric)
   - Depth sorting rules (when character appears in front of vs. behind objects)
   - Shadow specification for characters on the ground plane

6. **Lighting & Atmosphere:** Define the global lighting direction (typically upper-left for isometric), how shadows fall on each surface orientation, ambient occlusion in tile corners and where walls meet floors, and time-of-day color palette variations.

7. **Depth Sorting & Layering Rules:** Provide the technical sorting order for rendering: ground tiles first, then objects sorted by their Y-position (furthest first), with special rules for tall objects, bridges, and multi-level structures. Address the common depth sorting edge cases that cause visual glitches.