2026-04-10 15:25:25 +02:00
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# Chessistics — Prototype Roadmap
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## Phase 1: Core solvability (DONE)
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- Black Box Sim pattern: commands self-apply via `DoApply()`/`AssertApplicationConditions()`
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- 3 piece types: Rook (orthogonal range 2), Bishop (diagonal range 2), Knight (L-jump)
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- Relay chain mechanic with shared relay points (collision-free alternating)
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- Transfer system: production → pieces → demands, 4-adjacency, participation tracking
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- Victory/defeat: all demands met vs deadline expired
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2026-04-10 15:35:55 +02:00
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## Phase 2: Cargo-type aware transfers (DONE)
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- `CargoFilter` property on `PieceState`: optional `CargoType?` restricting accepted cargo
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- Auto-assigned at placement via relay chain tracing (adjacency to production, then shared
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relay points with filtered pieces)
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- `TransferResolver` enforces filter: receivers with mismatched `CargoFilter` are skipped
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- Forward-direction sorting uses cargo-type-aware `MinDistanceToProduction` to avoid
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wrong sorting when multiple productions exist
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- Level 3 restored to dual-cargo (Wood+Stone) with 10R+2K stock
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- GDD stock corrections: Level 2 = 6R+1B, Level 3 = 10R+2K
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- 60 tests passing including 2 new CargoFilter tests
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2026-04-10 15:25:25 +02:00
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Add Pion piece, surplus stock, and levels 4-6
- Pion (Pawn): orthogonal range 1, social status 1 (lowest), green color
- All existing levels get surplus stock including pawns for player choice
- Level 4 "Le Carrefour": 8x8, dual cargo diagonal routes, center wall block
- Level 5 "Le Labyrinthe": 8x6, wall corridors, knights essential for shortcuts
- Level 6 "Trois Royaumes": 10x8, 3 productions + 3 demands, full network puzzle
- Production interval concept removed (all produce every turn)
- GDD updated with Pion section and 6 level descriptions
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-10 22:03:36 +02:00
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## Phase 3: Pion, surplus stock, levels 4-6 (DONE)
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2026-04-10 15:25:25 +02:00
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Add Pion piece, surplus stock, and levels 4-6
- Pion (Pawn): orthogonal range 1, social status 1 (lowest), green color
- All existing levels get surplus stock including pawns for player choice
- Level 4 "Le Carrefour": 8x8, dual cargo diagonal routes, center wall block
- Level 5 "Le Labyrinthe": 8x6, wall corridors, knights essential for shortcuts
- Level 6 "Trois Royaumes": 10x8, 3 productions + 3 demands, full network puzzle
- Production interval concept removed (all produce every turn)
- GDD updated with Pion section and 6 level descriptions
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-10 22:03:36 +02:00
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- Pion: orthogonal range 1, status 1 (lowest), cheap relay maillon
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- Surplus stock on all levels (more pieces than minimum solution)
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- Levels 4-6: Le Carrefour (8x8), Le Labyrinthe (8x6), Trois Royaumes (10x8)
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- Production interval removed: all productions fire every turn
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- GDD updated with Pion, 6 levels
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2026-04-10 15:25:25 +02:00
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## Phase 5: Network levels and Dame (Queen)
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**Goal**: Open-ended logistics puzzles with interconnected supply networks.
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- Multiple productions feeding multiple demands through shared infrastructure.
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- Dame piece: combines Rook + Bishop movement (range 2, all 8 directions).
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- Powerful but expensive — forces cost/benefit tradeoffs.
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- Larger boards (12x12+) with complex wall configurations.
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- Potential for player-designed levels (level editor data format).
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## Phase 6: Godot integration
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**Goal**: Playable visual prototype.
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- Board renderer: grid, walls, buildings, pieces.
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- Drag-and-drop piece placement during Edit phase.
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- Step/play/pause simulation controls.
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- Event visualization: cargo movement, transfers, delivery animations.
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- Victory/defeat screens with Metrics display.
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