31 lines
1.3 KiB
Markdown
31 lines
1.3 KiB
Markdown
---
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description: Standards for Three.js integration, VoxelGrid, and the Game Loop.
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globs: src/core/*.js, src/grid/*.js**
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---
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# **Game Engine Standards**
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## **The Game Loop**
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- **Responsibility:** The GameLoop is the "God Object" responsible for tying systems together. It owns the Scene, Renderer, Grid, and Managers.
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- **Phases:** The loop must respect the current phase: INIT, DEPLOYMENT, COMBAT, RESOLUTION.
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- **Input Routing:** The loop routes raw inputs from InputManager to the appropriate system (e.g., MovementSystem vs SkillTargeting) based on the current Phase.
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## **Voxel System**
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1. **Separation of Concerns:**
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- VoxelGrid.js: **Pure Data**. Stores IDs in Uint8Array. Handles physics queries (isSolid). No Three.js dependencies.
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- VoxelManager.js: **Rendering**. Reads VoxelGrid and updates THREE.InstancedMesh. Handles materials and textures.
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2. **Performance:**
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- Never create individual THREE.Mesh objects for terrain. Use InstancedMesh.
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- Hide "Air" voxels by scaling them to 0 rather than removing them from the InstanceMatrix (unless refactoring for chunking).
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3. **Coordinates:**
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- Use {x, y, z} objects for positions.
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- Y is **Up**.
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- Grid coordinates are integers.
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## **Input**
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- Use InputManager for all hardware interaction.
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- Support Mouse, Keyboard, and Gamepad seamlessly.
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- Raycasting should return integer Grid Coordinates.
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