123 lines
4.0 KiB
JavaScript
123 lines
4.0 KiB
JavaScript
class BaseShape {
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constructor() {
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this.controls = []; // Keep track of created elements and event listeners
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}
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initialise(config) {
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for (let item of config) {
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const { element, listener } = addControl(item,this);
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this.controls.push({ element, listener });
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}
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}
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remove() {
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this.controls.forEach(({ element, listener }) => {
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if (element && listener) {
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element.removeEventListener("input", listener);
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}
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if (element && element.parentElement) {
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element.parentElement.removeChild(element);
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const titleElement = document.getElementById("elText" + element.id.slice(2));
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titleElement.parentElement.removeChild(titleElement);
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}
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});
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this.controls = [];
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}
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draw() {
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throw new Error("Draw function not implemented");
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}
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}
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class PolyTwistColourWidth extends BaseShape {
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constructor(sides, width, depth, rotation, colour1, colour2) {
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super();
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this.sides = sides;
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this.width = width;
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this.depth = depth;
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this.rotation = rotation;
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this.colour1 = colour1;
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this.colour2 = colour2;
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}
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draw(innerRotation) {
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let out_angle = 0;
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const innerAngle = 180 - ((this.sides - 2) * 180) / this.sides;
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const scopeAngle = innerRotation - (innerAngle * Math.floor(innerRotation / innerAngle));
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if (scopeAngle < innerAngle / 2) {
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out_angle = innerAngle / (2 * Math.cos((2 * Math.PI * scopeAngle) / (3 * innerAngle))) - innerAngle / 2;
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} else {
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out_angle = -innerAngle / (2 * Math.cos(((2 * Math.PI) / 3) - ((2 * Math.PI * scopeAngle) / (3 * innerAngle)))) + (innerAngle * 3) / 2;
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}
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let minWidth = Math.sin(rad(innerAngle / 2)) * (0.5 / Math.tan(rad(innerAngle / 2))) * 2;
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let widthMultiplier = minWidth / Math.sin(Math.PI / 180 * (90 + innerAngle / 2 - out_angle + innerAngle * Math.floor(out_angle / innerAngle)));
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for (let i = 0; i < this.depth; i++) {
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const fraction = i / this.depth;
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const ncolour = LerpHex(this.colour1, this.colour2, fraction);
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DrawPolygon(this.sides, this.width * widthMultiplier ** i, out_angle * i + this.rotation , ncolour);
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}
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}
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}
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class FloralPhyllo extends BaseShape {
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constructor(width, depth, colour1, colour2) {
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super();
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this.width = width;
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this.depth = depth;
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this.colour1 = colour1;
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this.colour2 = colour2;
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}
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draw(angle) {
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// var c = 24; //something to do with width. but not width
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var c = 1; //something to do with width. but not width
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//dont make larger than 270 unless altering the number of colours in lerpedColours
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for (let n = 200; n > 0; n -= 1) {
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const a = n * angle/1000; //137.5;
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const r = c * Math.sqrt(n);
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const x = r * Math.cos(a) + centerX;
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const y = r * Math.sin(a) + centerY;
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drawEyelid(n * 2.4 + 40, x, y, this.colour1);
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}
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}
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}
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class Spiral1 extends BaseShape {
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constructor(sides,width, colour) {
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super();
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this.sides = sides;
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this.width = width;
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this.colour = colour;
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}
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draw(rotation) {
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var rot = Math.round((this.sides - 2) * 180 / this.sides * 2)
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var piv = 360 / this.sides;
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var stt = 0.5 * Math.PI - rad(rot) //+ rad(rotation);
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var end = 0;
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var n = this.width / ((this.width / 10) * (this.width / 10)) //pixel correction for mid leaf
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for (let i = 1; i < this.sides + 1; i++) {
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end = stt + rad(rot);
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ctx.beginPath();
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ctx.arc(centerX + Math.cos(rad(90 + piv * i + rotation)) * this.width, centerY + Math.sin(rad(90 + piv * i + rotation)) * this.width, this.width, stt + rad(rotation) - (stt - end) / 2, end + rad(rotation) + rad(n), 0);
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ctx.strokeStyle = this.colour;
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ctx.stroke();
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ctx.beginPath();
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ctx.arc(centerX + Math.cos(rad(90 + piv * i - rotation)) * this.width, centerY + Math.sin(rad(90 + piv * i - rotation)) * this.width, this.width, stt - rad(rotation), end - (end - stt) / 2 + rad(n) - rad(rotation), 0);
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ctx.strokeStyle = this.colour;
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ctx.stroke();
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stt = end + -(rad(rot - piv)) //+rad(30);
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}
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}
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}
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