185875430 / dart-lemon-engine Goto Github PK

// main.dart

import 'package:flutter/material.dart';
import 'package:lemon_engine/lemon_engine.dart';

void main() {
  var circleX = 0.0;
  var circleY = 100.0;

  Engine.run(
    init: (sharedPreferences) {
      // load assets etc
    }, 
    update: () {
      circleX++;
      if (Engine.keyPressed(KeyCode.Arrow_Down)) {
        circleY += 1;
      }
    }, 
    render: (Canvas canvas, Size size) {
      canvas.drawCircle(Offset(circleX, circleY), 100, Engine.paint);
    }, 
    buildUI: (BuildContext context) {
      return Stack(
        children: [
          Positioned(
              bottom: 16,
              right: 16,
              child: Engine.buildOnPressed(
                child: const Text(
                  "RESET",
                  style: TextStyle(color: Colors.white70, fontSize: 60),
                ),
                action: () => circleX = 0,
              )),
        ],
      );
  });
}