110 lines
No EOL
3 KiB
Dart
110 lines
No EOL
3 KiB
Dart
import 'dart:html';
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import 'package:browserloop/game/Game.dart';
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import 'package:browserloop/game/LoopExample.dart';
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import 'package:browserloop/src/03-FixedLoopVariableRender.dart';
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import 'package:browserloop/src/02-AnimationFrameWhile.dart';
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List<Example> examples = [
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Example("While Loop Example","#while_output"),
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Example("Fixed Update, Variable Render","#variable_output")
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];
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LoopExample active;
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class Example {
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final String query;
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final String name;
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CanvasElement canvas = CanvasElement(width: 480, height: 480);
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LoopExample loop;
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Example(this.name, this.query);
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}
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void main() {
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examples.forEach((ex) {
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appendToDOM(ex);
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});
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resetPlaceHolders();
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}
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void appendToDOM(Example example) {
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querySelector(example.query).append(example.canvas);
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example.canvas.onClick.forEach(activate);
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print("${example.query} appended");
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}
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void readdToDOM(Example example) {
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querySelector(example.query).children.clear();
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print("${example.query} removed");
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appendToDOM(example);
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}
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void resetPlaceHolders([Example current]) {
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examples.forEach((Example ex) {
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if(current == null || ex != current) {
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if(ex.loop != null) {
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ex.loop.stop();
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ex.loop = null;
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}
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ex.canvas = new CanvasElement(width: ex.canvas.width,height: ex.canvas.height);
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readdToDOM(ex);
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CanvasRenderingContext2D ctx = ex.canvas.context2D;
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Point c = Point(ex.canvas.width/2, ex.canvas.height/2);
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ctx.setFillColorRgb(255, 150, 10);
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ctx.fillRect(0, 0, ex.canvas.width, ex.canvas.height);
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ctx.beginPath();
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ctx.moveTo(c.x-25, c.y-25);
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ctx.lineTo(c.x+25, c.y+25);
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ctx.lineTo(c.x-25, c.y+75);
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ctx.closePath();
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ctx.lineWidth = 10;
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ctx.setStrokeColorRgb(155, 155, 155);
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ctx.setFillColorRgb(255, 255, 255);
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ctx.stroke();
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ctx.fill();
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ctx.fillText(ex.name, c.x - ctx.measureText(ex.name).width/2, c.y - 50);
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print("reset ${ex.query}");
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}
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});
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}
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void activate(MouseEvent e) {
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if(e.target is! CanvasElement) return;
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CanvasElement c = (e.target as CanvasElement);
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examples.forEach((Example ex) {
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if (ex.canvas == c) {
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resetPlaceHolders(ex);
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switch (ex.query) {
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case "#while_output":
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ex.loop = new WhileLoop(new Game(c));
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break;
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case "#variable_output":
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ex.loop = new FixedLoopVariableRender(new Game(c));
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break;
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}
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querySelector(ex.query).append(new ButtonElement()
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..text = "start"
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..onClick.listen((e) {
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ex.loop.stop();
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ex.loop.start();
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}));
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querySelector(ex.query).append(new ButtonElement()
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..text = "stop"
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..onClick.listen((e) {
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ex.loop.stop();
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}));
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// querySelector('#reset').onClick.listen((e) => ex.loop.game.reset());
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// querySelector('#plus').onClick.listen((e) => _changeGrid(-5));
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// querySelector('#minus').onClick.listen((e) => _changeGrid(5));
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}
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});
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}
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//when a button is clicked delete all the other Loops containing games and replace them with a canvas (fn above) |