Amiblitz 3 Platformer

A multi-level platformer game written in Amiblitz 3 (Blitz Basic 2) for the Amiga. Levels are designed in Tiled and converted to Amiblitz 3 data using Tiled2Retro. The initial game loop was bootstrapped via the exporter for a quick start, but all gameplay code has since been rewritten by hand.

Features

• 3 playable levels
• 16×16 pixel tiles on a 20×16 grid (320×256 screen)
• 3-bitplane graphics (8 colors)
• Tile-based collision (floors, walls, ladders)
• Player physics: gravity, jumping, ladder climbing
• Joystick input (port 1)
• Double-buffered rendering

Requirements

• Amiga with 68000+ processor (or an emulator like WinUAE / FS-UAE)
• Amiblitz 3 compiler (Blitz Basic 2 compatible)
• Kickstart 2.0+

How to Run

1. Open Amiblitz 3 on your Amiga or emulator.
2. Load game.ab3 as the main source file.
3. Ensure the includes/ folder is in the same directory.
4. Compile and run via Run → Compile & Run (or press F5).

The game will start immediately. Use a joystick in port 1 to move, and press Q to quit.

Level Selection

Open game.ab3 and change the constant near the top:

#CURRENT_LEVEL = 0   ; change to 0, 1, or 2

Then recompile.

Project Structure

├── game.ab3              Main game source (game loop, init)
├── assets/
│   └── tiles_3bp.iff     Tileset image (3 bitplanes)
├── includes/
│   ├── map.ab3           Tile map loader & renderer
│   ├── mapdata.ab3       Level data (tile indices + flags)
│   ├── player.ab3        Player newtype & physics
└── README.md

Controls

Input	Action
Joystick Left/Right	Move
Joystick Up	Climb ladder
Joystick Fire	Jump
Q	Quit game

License

Open source — do whatever you like with it.