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202f59a410
Replace Canvas 2D-based territory rendering with a WebGPU implementation for improved performance and scalability. Major changes: - Remove TerrainLayer: territory and terrain now rendered together in WebGPU - Add TerritoryWebGLRenderer: new WebGPU-based renderer (1162 lines) - GPU-authoritative state management with compute shaders - Separate uniform buffers for compute and render passes - Efficient incremental updates via scatter/gather compute passes - Full rebuild compute pass for palette/theme changes - Add defense post management: - Track defended state in GameMap (bit 12 in tile state) - Update defended tiles when defense posts are added/removed/moved - Update defended state when tiles change ownership - Extract hover detection into HoverInfo utility: - Centralized logic for player/unit/wilderness detection - Used by PlayerInfoOverlay for cleaner separation of concerns - Canvas architecture changes: - Main canvas now transparent (alpha: true) - WebGPU canvas renders background and territory - Overlay canvas renders UI elements on top - Performance optimizations: - Compute shaders run at simulation rate (tick), not frame rate - Incremental tile updates via pending tiles set - Palette signature tracking to avoid unnecessary rebuilds - Defense posts signature tracking for efficient updates Files changed: - 10 files changed, 1447 insertions(+), 752 deletions(-) - New: TerritoryWebGLRenderer.ts, HoverInfo.ts - Removed: TerrainLayer.ts - Modified: TerritoryLayer.ts (simplified from 710 to 250 lines)