Initial commit

2026-10-24 02:12:36 +00:00 · 2018-09-30 06:17:31 +02:00
commit 96ce7c0dce
75 changed files with 10420 additions and 0 deletions
@@ -0,0 +1,145 @@
+ig.module(
+	'impact.system'
+)
+.requires(
+	'impact.timer',
+	'impact.image'
+)
+.defines(function(){ "use strict";
+
+ig.System = ig.Class.extend({
+	fps: 30,
+	width: 320,
+	height: 240,
+	realWidth: 320,
+	realHeight: 240,
+	scale: 1,
+	
+	tick: 0,
+	animationId: 0,
+	newGameClass: null,
+	running: false,
+	
+	delegate: null,
+	clock: null,
+	canvas: null,
+	context: null,
+	
+	init: function( canvasId, fps, width, height, scale ) {
+		this.fps = fps;
+		
+		this.clock = new ig.Timer();
+		this.canvas = ig.$(canvasId);
+		this.resize( width, height, scale );
+		this.context = this.canvas.getContext('2d');
+		
+		this.getDrawPos = ig.System.drawMode;
+
+		// Automatically switch to crisp scaling when using a scale
+		// other than 1
+		if( this.scale != 1 ) {
+			ig.System.scaleMode = ig.System.SCALE.CRISP;
+		}
+		ig.System.scaleMode( this.canvas, this.context );
+	},
+	
+	
+	resize: function( width, height, scale ) {
+		this.width = width;
+		this.height = height;
+		this.scale = scale || this.scale;
+		
+		this.realWidth = this.width * this.scale;
+		this.realHeight = this.height * this.scale;
+		this.canvas.width = this.realWidth;
+		this.canvas.height = this.realHeight;
+	},
+	
+	
+	setGame: function( gameClass ) {
+		if( this.running ) {
+			this.newGameClass = gameClass;
+		}
+		else {
+			this.setGameNow( gameClass );
+		}
+	},
+	
+	
+	setGameNow: function( gameClass ) {
+		ig.game = new (gameClass)();	
+		ig.system.setDelegate( ig.game );
+	},
+	
+	
+	setDelegate: function( object ) {
+		if( typeof(object.run) == 'function' ) {
+			this.delegate = object;
+			this.startRunLoop();
+		} else {
+			throw( 'System.setDelegate: No run() function in object' );
+		}
+	},
+	
+	
+	stopRunLoop: function() {
+		ig.clearAnimation( this.animationId );
+		this.running = false;
+	},
+	
+	
+	startRunLoop: function() {
+		this.stopRunLoop();
+		this.animationId = ig.setAnimation( this.run.bind(this), this.canvas );
+		this.running = true;
+	},
+	
+	
+	clear: function( color ) {
+		this.context.fillStyle = color;
+		this.context.fillRect( 0, 0, this.realWidth, this.realHeight );
+	},
+	
+	
+	run: function() {
+		ig.Timer.step();
+		this.tick = this.clock.tick();
+		
+		this.delegate.run();
+		ig.input.clearPressed();
+		
+		if( this.newGameClass ) {
+			this.setGameNow( this.newGameClass );
+			this.newGameClass = null;
+		}
+	},
+	
+	
+	getDrawPos: null // Set through constructor
+});
+
+ig.System.DRAW = {
+	AUTHENTIC: function( p ) { return Math.round(p) * this.scale; },
+	SMOOTH: function( p ) { return Math.round(p * this.scale); },
+	SUBPIXEL: function( p ) { return p * this.scale; }
+};
+ig.System.drawMode = ig.System.DRAW.SMOOTH;
+
+ig.System.SCALE = {
+	CRISP: function( canvas, context ) {
+		ig.setVendorAttribute( context, 'imageSmoothingEnabled', false );
+		canvas.style.imageRendering = '-moz-crisp-edges';
+		canvas.style.imageRendering = '-o-crisp-edges';
+		canvas.style.imageRendering = '-webkit-optimize-contrast';
+		canvas.style.imageRendering = 'crisp-edges';
+		canvas.style.msInterpolationMode = 'nearest-neighbor'; // No effect on Canvas :/
+	},
+	SMOOTH: function( canvas, context ) {
+		ig.setVendorAttribute( context, 'imageSmoothingEnabled', true );
+		canvas.style.imageRendering = '';
+		canvas.style.msInterpolationMode = '';
+	}
+};
+ig.System.scaleMode = ig.System.SCALE.SMOOTH;
+
+});