animate/webGl/circle fractal/js/index.js

149 lines
3.4 KiB
JavaScript

//jshint esversion:8
let c = document.getElementById("canvas");
const gl = canvas.getContext('webgl');
// canvas.width = 800;
// canvas.height = 800;
canvas.width = window.innerWidth;
canvas.height = window.innerHeight;
gl.viewport(0, 0, canvas.width, canvas.height);
// let ctx = c.getContext("2d");
// ctx.canvas.width = window.innerWidth;
// ctx.canvas.height = window.innerHeight;
// centerX = ctx.canvas.width / 2;
// centerY = ctx.canvas.height / 2;
window.addEventListener('resize', function () {
console.log('addEventListener - resize');
canvas.width = window.innerWidth;
canvas.height = window.innerHeight;
gl.viewport(0, 0, canvas.width, canvas.height);
}, true);
let deg_per_sec = 10;
let targetFps = 60;
let frameDuration = 1000 / targetFps;
let rotation = 0; //was = j = angle
let paused = true;
render_clear();
let drawObj = null;
function createInstance(className, args) {
const classMap = {
EyePrototype: EyePrototype,
// Add more class constructors here as needed
};
if (classMap.hasOwnProperty(className)) {
return new classMap[className](...args);
} else {
throw new Error(`Unknown class name: ${className}`);
}
}
async function updateDrawObj() {
const shapeSelector = document.getElementById("shape-selector");
const selectedShape = shapeSelector.value;
const config = await fetchConfig(selectedShape);
if (drawObj) {
drawObj.remove(); // Remove the previous instance
}
// Extract default values from the configuration
const defaultValues = config
// .filter((item) => item.type !== "color") // Exclude color inputs
.map((item) => item.defaultValue);
drawObj = createInstance(selectedShape, defaultValues);
// drawObj = await createShapeWithRandomProperties(813311281, config1);
console.log(drawObj)
drawObj.initialise(config);
}
updateDrawObj();
function render() {
setTimeout(() => {
requestAnimationFrame(() => {
render_clear();
if (drawObj) {
drawObj.draw(rotation);
}
if (!paused) {
rotation += deg_per_sec / targetFps;
}
// drawCenter(300)
});
render();
}, frameDuration);
}
document
.getElementById("shape-selector")
.addEventListener("change", updateDrawObj);
let toolbarShowing = true;
document.addEventListener("keydown", toggleSettings);
function manualToggleSettings() {
console.log("hi")
toolbarShowing = !toolbarShowing;
let tb = document.getElementById("toolbar");
if (toolbarShowing) {
tb.style.display = "flex";
} else {
tb.style.display = "none";
}
}
function toggleSettings(e) {
if (e.key == "p") {
toolbarShowing = !toolbarShowing;
}
if (e.code === "Space") {
paused = !paused;
}
let tb = document.getElementById("toolbar");
if (toolbarShowing) {
tb.style.display = "flex";
} else {
tb.style.display = "none";
}
}
function TogglePause() {
let pb = document.getElementById("pauseButton");
paused = !paused;
if (paused) {
pb.textContent = "Play";
} else {
pb.textContent = "Pause";
}
}
function Reset() {
rotation = 0; //was = j = angle
currentFrame = 0;
}
function ForwardFrame() {
rotation += deg_per_sec / fps; // was = j = innerRotation, now = rotation
currentFrame += 1; // was = i
}
function BackwardFrame() {
rotation -= deg_per_sec / fps; // was = j = innerRotation, now = rotation
currentFrame -= 1; // was = i
}
function ChangeDegPerSec(newValue) {
deg_per_sec = newValue;
}
window.onload = render;