57 lines
No EOL
1.7 KiB
JavaScript
57 lines
No EOL
1.7 KiB
JavaScript
var parabola;
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var start = function () {
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document.getElementById('myCanvas').width = window.innerWidth; //Sets size of Width
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document.getElementById('myCanvas').height = window.innerHeight; //Sets size of Height
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//Creates graph
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myGraph = new Graph({
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centerY: window.innerHeight / 2,
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centerX: window.innerWidth / 2,
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minX: 0,
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minY: 0,
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maxX: window.innerWidth / (window.innerHeight / 10),
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maxY: 10,
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unitsPerTick: 1
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});
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playLevel();
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}
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var playLevel = function () {
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Game.parabula.h = Game.parabula.fh();
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Game.parabula.k = Game.parabula.fk();
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parabola = new Line({
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equation: function (x) {
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return Math.pow((x + Game.parabula.h), 2) + Game.parabula.k;
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},
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//positive, shift left to origin
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hShift: Game.parabula.h,
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vShift: Game.parabula.k,
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graph: myGraph
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})
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myGraph.animateLine(parabola, 0, Game.level * 2 + 5);
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}
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//document object checks for arrow key presses
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$(document).on('keyup', function (e) {
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//only works if a current line is set, and said line is falling (animating)
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if (Game.currentLine.falling) {
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switch (e.which) {
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case 37: //left arrow
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//shift the line one unit left
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Game.currentLine.hShift += 1;
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break;
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case 38: //up arrow
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//only if line is sliding horizontally
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Game.currentLine.shiftAmount += 1;
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break;
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case 39: //right arrow
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Game.currentLine.hShift -= 1;
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break;
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case 40: //down arrow
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Game.currentLine.shiftAmount -= 1;
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break;
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default:
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}
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}
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});
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$(document).ready(start); |