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ComplexSprite.js
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ComplexSprite.js
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/* Anything that needs complex user interaction, or multiple animations */
function ComplexSprite(imgName, animationMetrics){
if(arguments.length > 0){
SimpleSprite.call(this);
this.sequences = {};
this.active = "walk_down";
this.lastFrame = 0;
this.delayCounter = 0;
this.tileSheet = CURE.as.getAsset(imgName);
for(var i in animationMetrics){
this.sequences[i] = animationMetrics[i];
}
}
}
ComplexSprite.prototype = new SimpleSprite();
ComplexSprite.prototype.constructor = ComplexSprite;
// this doesn't do anything yet
ComplexSprite.prototype.setSequence = function(sequenceName){
if( this.sequences[sequenceName] !== undefined ){
this.active = sequenceName;
}
};
// ctx: 2d context
// mapX/Y: the xy of the map, relative to the canvas
// spriteObject: this, basically
ComplexSprite.prototype.draw = function(ctx, mapX, mapY, spriteObject){
if( spriteObject.animationMetrics[this.active] !== undefined ){
this.x = this.mapX - mapX;
this.y = this.mapY - mapY;
if(this.lastFrame >= spriteObject.animationMetrics[this.active].length){
this.lastFrame = 0;
}
ctx.globalAlpha = this.opacity;
ctx.drawImage(spriteObject.tileSheet,
spriteObject.animationMetrics[this.active][this.lastFrame]['xStart'],
spriteObject.animationMetrics[this.active][this.lastFrame]['yStart'],
spriteObject.animationMetrics[this.active][this.lastFrame]['width'],
spriteObject.animationMetrics[this.active][this.lastFrame]['height'],
this.x - spriteObject.animationMetrics[this.active][this.lastFrame]['xHSOffset'],
this.y - spriteObject.animationMetrics[this.active][this.lastFrame]['yHSOffset'],
spriteObject.animationMetrics[this.active][this.lastFrame]['width'],
spriteObject.animationMetrics[this.active][this.lastFrame]['height']);
ctx.globalAlpha = 1;
/*ctx.fillStyle = "rgb(200,0,0)";
ctx.fillRect (this.x, this.y, 2, 2);*/
/*ctx.fillStyle = "rgba(0, 0, 200, 0.5)";
ctx.fillRect (30, 30, 55, 50);*/
if(this.delayCounter > spriteObject.animationMetrics[this.active][this.lastFrame]['delay']){
this.lastFrame++;
this.delayCounter = 0;
} else
this.delayCounter++;
}
};
ComplexSprite.prototype.moveRight = function(inc){
this.mapX += inc;
};
ComplexSprite.prototype.moveLeft = function(inc){
this.mapX -= inc;
};
ComplexSprite.prototype.moveUp = function(inc){
this.mapY -= inc;
};
ComplexSprite.prototype.moveDown = function(inc){
this.mapY += inc;
};