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HTML5 drawing lib working

This commit is contained in:
Skyler Lehmkuhl 2012-01-08 22:17:32 -05:00
parent 76b1ad99de
commit f742148195
1 changed files with 79 additions and 17 deletions
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92
base.js
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@ -1,11 +1,61 @@
<html>
<head>
<style type="text/css">
canvas { border: 2px solid #000; position:absolute; top:0;left:0;
visibility: hidden; }
</style>
</head>
<body>
<canvas id="canvas" width=500 height=500></canvas>
<canvas id="canvas1" width=500 height=500></canvas>
<canvas id="canvas2" width=500 height=500></canvas>
<script>
//-------------------------- BEGIN JAVASCRIPT --------------------------------\\
var fps = 50
var cr;
var canvas;
function _timerBase () {
/* This provides the 'tick' by which all animations are run.
Playing animations should have their ._draw() method added here;
to stop them, call remove() on it. */
this.funcs = {}
this.add = function (item) {
this.funcs[item]=item;
}
this.remove = function (item) {
delete this.funcs[item];
}
this.iterate = function() {
canvas = Buffers[DrawingBuffer];
if (canvas.getContext) {
cr = canvas.getContext("2d");
cr.clearRect(0, 0, canvas.width, canvas.height);
cr.beginPath()
DrawingBuffer=1-DrawingBuffer;
//canvas = Buffers[DrawingBuffer];
draw()
for (i in this.funcs){
this.funcs[i]._draw()
}
Buffers[1-DrawingBuffer].style.visibility='hidden';
Buffers[DrawingBuffer].style.visibility='visible';
}
}
setInterval('Timer.iterate()', 1000/fps)
}
var Timer = new _timerBase()
function Frame () {
this.actions = ''
this.run_script = function() {
eval(this.actions)
}
}
function MovieClip() {
/* From the ActionScript reference:
@ -20,16 +70,27 @@ function MovieClip() {
The duplicateMovieClip() method allows you to create a movie clip instance based on
another movie clip.
*/
this._frames = [[]]
this._frames = [new Frame()]
this._currentframe = 1;
this._draw = function () {
this._draw = function (sttc) {
for (i in this) {
if (this._frames[this._currentframe-1][i]) {
this[i]._draw(this._frames[this._currentframe-1][i]);
}
}
if (!sttc) {
this._frames[this._currentframe-1].run_script()
this._currentframe++;
if (this._currentframe>this._frames.length) {
this._currentframe = 1;
}
}
}
this.play = function () {
Timer.add(this)
}
this.stop = function () {
Timer.remove(this)
}
}
@ -72,26 +133,30 @@ var Stage = {
}
var root = {}
var cr
/*if (canvas.getContext) {
cr = canvas.getContext("2d");
}*/
var Buffers = [document.getElementById("canvas1"), document.getElementById("canvas2")]
var DrawingBuffer = 0
function draw() {
var canvas = document.getElementById("canvas");
if (canvas.getContext) {
cr = canvas.getContext("2d");
cr.strokeSyle = "#0000FF"
for (i in root) {
if (root[i]._draw) {
root[i]._draw()
//root[i]._draw(true)
}
}
}
}
function play() {
}
var a = new Shape()
@ -101,17 +166,14 @@ b.a = a
b._frames[0].a = {}
b._frames[0].a._x = 100
b._frames[0].a._y = 20
b._frames[0].a._xscale = 1
b._frames[0].a._xscale = 1
b._frames[0].a._rotation = 0
b._frames[0].actions = 'this.a._x = this.a._x + 1'
root.b = b
b._frames[1] = new Frame()
b._frames[1].a = {}
b._frames[1].a._x = 50
b._frames[1].a._y = 40
b._frames[1].a._xscale = 1
b._frames[1].a._xscale = 1
b._frames[1].a._rotation = 0
play()
setTimeout('b.play()',2000)
//------------------- END OF JAVASCRIPT ------------------------\\
</script>