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animate
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time is handled differently now. truetimestamp is now all meausred in ms

This commit is contained in:
Sam 2024-07-13 00:45:24 +12:00
parent 7458d3188e
commit ea9134bfdc
2 changed files with 35 additions and 19 deletions
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19
Larry the snail/js/index.js
View File

@ -11,9 +11,11 @@ ctx.imageSmoothingEnabled = false;
let deg_per_sec = 60;
let targetFps = 60;
let frameDuration = 1000 / targetFps;
let lastTimestamp = 0;
let trueTimestamp = 0;
let rotation = 0; //was = j = angle
let paused = true;
let paused = false;
render_clear();
let drawObj = null;
@ -63,15 +65,26 @@ updateDrawObj();
function render() {
setTimeout(() => {
requestAnimationFrame(() => {
requestAnimationFrame((timestamp) => {
if (!lastTimestamp) lastTimestamp = timestamp;
const elapsed = timestamp - lastTimestamp;
lastTimestamp = timestamp;
render_clear();
if (drawObj) {
drawObj.draw(rotation);
// drawObj.draw(rotation);
drawObj.draw(elapsed,trueTimestamp);
}
if (!paused) {
rotation += deg_per_sec / targetFps;
trueTimestamp += elapsed;
}
ctx.font = "48px serif";
ctx.fillStyle = "white"
ctx.fillText( Math.floor(trueTimestamp) + "ms", centerX-150, centerY+400);
// drawCenter(300)
});
render();

25
Larry the snail/js/objects.js
View File

@ -53,7 +53,7 @@ class Larry extends BaseShape {
this.headHeight = 24;
this.headOffsetX = 54 - this.headWidth * this.magnitude / 2;
this.headOffsetY = this.bodyHeight * this.magnitude - 7; // Bottom of the body minus 7 pixels
this.globalX = Math.random() * 1000;
this.globalX = Math.random() * 1000 + 600;
this.globalY = centerY;
this.localX = 0;
this.localY = 0;
@ -87,7 +87,7 @@ class Larry extends BaseShape {
this.lastTimestamp = 0;
}
draw(timestamp) {
draw(elapsed, timestamp) {
timestamp *= (this.speedMultiplier / 100);
// console.log(timestamp - this.lastTimestamp)
this.lastTimestamp = timestamp;
@ -111,18 +111,20 @@ class Larry extends BaseShape {
//eating
if (timestamp < this.eatEndTimestamp) {
console.log("eating")
const adjustedTimestamp = this.eatEndTimestamp - timestamp + parseInt(this.eatDuration) / (1000 / 60);
// const adjustedTimestamp = this.eatEndTimestamp - timestamp + parseInt(this.eatDuration) / (1000 / 60);
const adjustedTimestamp = (timestamp - (this.eatEndTimestamp - parseInt(this.eatDuration * 1000) / (this.eatSpeed / 100)));
console.log(adjustedTimestamp)
const eatMaxHeight = 20;
// const eatingYOffset = ((Math.cos((adjustedTimestamp -Math.PI/2+ 0.5 * Math.PI) * (this.eatSpeed/100)*0.1 - Math.PI / 2) + 1) / 2) * eatMaxHeight;
const eatingYOffset = ((Math.sin((adjustedTimestamp * 2 * Math.PI * this.eatSpeed / 100 * 0.1) - Math.PI / 2) + 1) / 2) * eatMaxHeight;
// const eatingYOffset = ((Math.sin((adjustedTimestamp/1000 * 2 * Math.PI * this.eatSpeed / 100 * 0.1) - Math.PI / 2) + 1) / 2) * eatMaxHeight;
const eatingYOffset = (Math.sin(((adjustedTimestamp/1000)* (this.eatSpeed/100))* Math.PI * 2 - (Math.PI/2))*0.5+0.5) * eatMaxHeight;
headY -= eatingYOffset;
const n = this.eatDuration
console.log(adjustedTimestamp)
console.log((-adjustedTimestamp + 10 * n) / 10)
console.log(Math.floor((-adjustedTimestamp + (10 / (this.eatSpeed / 100)) * n) / (10 / (this.eatSpeed / 100))))
const frame = Math.floor((-adjustedTimestamp + (10 / (this.eatSpeed / 100)) * n) / (10 / (this.eatSpeed / 100)))
// console.log(adjustedTimestamp)
// console.log((-adjustedTimestamp + 10 * n) / 10)
// console.log(Math.floor((-adjustedTimestamp + (10 / (this.eatSpeed / 100)) * n) / (10 / (this.eatSpeed / 100))))
const frame = Math.floor((adjustedTimestamp / 1000) * (this.eatSpeed / 100))
this.foodImage.src = "larry_photos/foods/" + document.getElementById('elselectedFood').value + frame + ".png";
this.drawCrosshair(bodyX + this.foodXoffset, bodyY + this.foodYoffset, 30)
ctx.drawImage(this.foodImage, bodyX + this.foodXoffset, bodyY + this.foodYoffset, this.foodImage.width * this.foodSizeMuliplier, this.foodImage.height * this.foodSizeMuliplier)
@ -159,8 +161,9 @@ class Larry extends BaseShape {
console.log("Larry starts eating");
const foodSelection = document.getElementById('elselectedFood').value
this.isEating = true;
this.eatEndTimestamp = this.lastTimestamp + (parseInt(this.eatDuration) / (6 * (this.eatSpeed / 100))) * 1000 / (1000 / 60);
// this.eatEndTimestamp = this.lastTimestamp + (parseInt(this.eatDuration) / (6 * (this.eatSpeed / 100))) * 1000 / (1000 / 60);
this.eatEndTimestamp = trueTimestamp + parseInt(this.eatDuration * 1000) / (this.eatSpeed / 100);
console.log("start:" + trueTimestamp + " end: " + this.eatEndTimestamp)
if (foodSelection === "") {
this.foodXoffset = 0;
this.foodYoffset = 0;