piskel/js/controller/AnimatedPreviewController.js

39 lines
1.2 KiB
JavaScript

(function () {
var ns = $.namespace("pskl.controller");
ns.AnimatedPreviewController = function (framesheet, container, dpi) {
this.framesheet = framesheet;
this.container = container;
this.elapsedTime = 0;
this.currentIndex = 0;
this.fps = parseInt($("#preview-fps")[0].value, 10);
var renderingOptions = {
"dpi": dpi
};
this.renderer = new pskl.rendering.FrameRenderer(this.container, renderingOptions);
};
ns.AnimatedPreviewController.prototype.init = function () {
$("#preview-fps")[0].addEventListener('change', this.onFPSSliderChange.bind(this));
};
ns.AnimatedPreviewController.prototype.onFPSSliderChange = function(evt) {
this.fps = parseInt($("#preview-fps")[0].value, 10);
};
ns.AnimatedPreviewController.prototype.render = function (delta) {
this.elapsedTime += delta;
var index = Math.floor(this.elapsedTime / (1000/this.fps));
if (index != this.currentIndex) {
this.currentIndex = index;
if (!this.framesheet.hasFrameAtIndex(this.currentIndex)) {
this.currentIndex = 0;
this.elapsedTime = 0;
}
this.renderer.render(this.framesheet.getFrameByIndex(this.currentIndex));
}
};
})();