Let’s spec this puzzle game in C++ terms before we write code.
🎮 Game Concept
Board Size: 8 × 8 grid (64 tiles total).
Tiles: Numbered sequentially.
Hard (1 missing): Tiles 1–63 + 1 blank (0/64).
Medium (2 missing): Tiles 1–62 + 2 blanks.
Easy (3 missing): Tiles 1–61 + 3 blanks.
Blank Tiles: Represent “holes” where tiles can move.
🧩 Mechanics
Tiles slide into adjacent blank spaces (classic sliding puzzle rules).
Objective: Arrange tiles back into ascending order (1 → N), with blanks at the end (bottom-right).
📊 Data Structures
Represent the board as:
2D array: int board[8][8].
Or 1D vector: std::vector of size 64 for easier shuffling.
Blanks are represented by 0.
🔄 Gameplay Flow
Choose difficulty (easy, medium, hard → defines number of blanks).
Initialize board:
Fill with numbers 1..(64 – blanks).
Insert blanks (0s).
Shuffle into a solvable configuration.
Game loop:
Print board.
Ask player for a move (tile number or arrow direction).
Validate move (must be adjacent to a blank).
Swap tile ↔ blank.
Check win condition.
Win condition: Board is sorted ascending with blanks at the end. <<–Lets make sure to add a frame around the puzzle and radio buttons so the user can select the difficulty. We are mouseclicking to move tiles. If a tile has one of its faces is not touching another tile, move into that tile.
Here’s a clean **C++ spec** that covers all your points plus the GUI additions (frame, radio buttons, mouse clicks).
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## 🎮 Puzzle Game (C++ Spec)
### Board
– **Grid**: `8 × 8` (64 positions).
– **Tile Representation**:
– **Numbered tiles**: integers `1..(64 – blanks)`.
– **Blank tiles**: represented as `0`.
– **Data Structures**:
– Internal: `std::vector board(64)`.
– Optional: `int board[8][8]` for row/col logic.
– Coordinate mapping:
`row = index / 8`, `col = index % 8`.
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### Difficulty
– **Easy**: 61 tiles + 3 blanks.
– **Medium**: 62 tiles + 2 blanks.
– **Hard**: 63 tiles + 1 blank.
Chosen via **radio buttons** in the GUI before starting.
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### GUI Layer
– **Frame**: Drawn around puzzle area.
– **Tiles**:
– Rendered as squares with numbers centered.
– Blanks: drawn as empty space.
– **Controls**:
– Radio buttons → difficulty selection.
– “Start” button → initializes board + shuffle.
– **Input**: Mouse clicks.
– Player clicks a **tile**.
– If an adjacent blank exists (up, down, left, right), the clicked tile slides into it.
– Multiple blanks? Prioritize the one orthogonally adjacent.
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### Game Logic
1. **Initialization**
– Create board with correct number of blanks.
– Place numbers sequentially.
– Shuffle into a **solvable** permutation.
– Render.
2. **Gameplay Loop**
– Wait for mouse click.
– Identify clicked tile index.
– Check adjacency:
– If one of its 4 sides touches a blank, swap.
– Update board + redraw.
– Check win condition.
3. **Win Condition**
– Board tiles in ascending order.
– Blanks occupy the last positions (bottom-right corner, continuing left if multiple).
– Example: `[1, 2, 3, …, 61, 0, 0, 0]`.
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### Support Functions
– `shuffleBoard(board, blanks)` → produces a random but solvable layout.
– `isSolvable(board)` → parity check for inversions.
– `drawBoard(board)` → GUI render function.
– `handleClick(x, y)` → maps mouse coords to tile index.
– `canMove(tile)` → checks if adjacent to blank.
– `swapTiles(tile, blank)` → updates board.
– `checkWin(board)` → validates ascending order + blanks at end.
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This keeps the **logic decoupled** from the GUI:
– Core = pure C++ puzzle logic.
– GUI = wrapper for drawing + mouse input (SFML, SDL, or ImGui would work).
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Do you want me to **draft the C++ class structure** (e.g., `class PuzzleBoard`, `class PuzzleGame`, `class PuzzleGUI`) so we can drop into code cleanly?