am1goo / playdate4j

Java framework to create games for Playdate console made by Panic Inc.

playdate4j

Java framework to create games on Playdate console.
ATTENTION: it is an experimental version, I don't sure that you should to use it in production purposes right now.

What inside?

• full support of Playdate API
• pretty good works in Playdate Simulator
• easy-to-use Localization API for system languages and any others

C API support

=100%= Logging API
=100%= System Menu API
=100%= Time and Date API
=100%= Miscellaneous API
=100%= Audio API
=100%= Display API
=100%= Graphics API
=100%= Video API
=100%= Input API
=100%= Device Auto Lock API
=100%= System Sounds API
=100%= Sprites API
=100%= Sprite Collisions API
BUT
=000%= JSON API (skipped API, package com.google.code.gson would be better)

Let me explain what it looks like:

public class ExampleGameCycle implements GameCycle {

    private Graphics.LCDBitmap playerBitmap;
    private Sprite.LCDSprite player;

    @Override
    public void start() {
        playerBitmap = Graphics.loadBitmap("images/player");
        player = Sprite.newSprite();
        player.setPosition(lcd_columns / 2, lcd_rows / 2);
        player.setImage(playerBitmap, Graphics.LCDBitmapFlip.Unflipped);
        Sprite.addSprite(player);
    }

    @Override
    public void loop() {
        Graphics.clear(Graphics.LCDSolidColor.White);
        int xDir = 0;
        int yDir = 0;
        if (Input.isButton(Input.PDButtons.Up)) {
            yDir--;
        }
        if (Input.isButton(Input.PDButtons.Down)) {
            yDir++;
        }
        if (Input.isButton(Input.PDButtons.Left)) {
            xDir--;
        }
        if (Input.isButton(Input.PDButtons.Right)) {
            xDir++;
        }

        float deltaTime = Game.getDeltaTime();
        float dx = 100 * xDir * deltaTime;
        float dy = 100 * yDir * deltaTime;
        player.moveBy(dx, dy);

        Sprite.updateAndDrawSprites();
    }

    @Override
    public void stop() {
        if (player != null) {
            Sprite.removeSprite(player);
            Sprite.freeSprite(player);
            player = null;
        }
        if (playerBitmap != null) {
            Graphics.freeBitmap(playerBitmap);
            playerBitmap = null;
        }
    }
}

Roadmap

• full C API coverage
• well-automated app creation process
• using Java-to-C code conversion instead of JavaVM on device

Requirements

• Playdate SDK 2.3.x version or higher from official site
• g++ compiler, like mingw64
• Java Development Kit 1.6 version or higher

Contribute

Contribution in any form is very welcome. Bugs, feature requests or feedback can be reported in form of Issues.