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Add propeller with speed and angular speed

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Lev
2021-06-09 19:50:26 -05:00
parent dd7128f113
commit 3e2a64e708
6 changed files with 10529 additions and 0 deletions
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CM2030 Graphics Programming/Topic 4/4.4.1/index.html Normal file
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<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>graphicsProgramming - Coursera</title>
<script src="libraries/p5.min.js" type="text/javascript"></script>
<script src="libraries/p5.sound.min.js" type="text/javascript"></script>
<script language="javascript" type="text/javascript" src="libraries/matter.js"></script>
<script src="sketch.js" type="text/javascript"></script>
<style> body {padding: 0; margin: 0;} canvas {vertical-align: top;} </style>
</head>
<body>
</body>
</html>

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CM2030 Graphics Programming/Topic 4/4.4.1/libraries/.DS_Store vendored Normal file
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CM2030 Graphics Programming/Topic 4/4.4.1/libraries/matter.js Normal file
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CM2030 Graphics Programming/Topic 4/4.4.1/libraries/p5.min.js vendored Normal file
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CM2030 Graphics Programming/Topic 4/4.4.1/libraries/p5.sound.min.js vendored Normal file
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CM2030 Graphics Programming/Topic 4/4.4.1/sketch.js Normal file
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let Engine = Matter.Engine,
Render = Matter.Render,
World = Matter.World,
Bodies = Matter.Bodies,
Body = Matter.Body;
let engine;
let box1;
let box2;
let ground1;
let ground2;
let ground3;
let circle, polygon;
let boxes = [];
let circles = [];
let colorBoxes = [];
let colorCircles = [];
let angle = 0;
let angleSpeed = 0.1;
let propeller;
function setup() {
createCanvas(900, 600);
// create engine
engine = Engine.create();
box1 = Bodies.rectangle(200, 200, 80, 80, {
restitution: 0.8,
friction: 0.5,
});
propeller = Bodies.rectangle(width/2, height/2, 300, 15, {isStatic: true});
ground1 = Bodies.rectangle(200, 450, 200, 10, {
isStatic: true
});
ground2 = Bodies.rectangle(500, 500, 200, 10, {
isStatic: true
});
ground3 = Bodies.rectangle(850, 450, 200, 10, {
isStatic: true
});
// add bodies to world
World.add(engine.world, [box1, ground1, ground2, ground3, propeller]);
}
function draw() {
background(0);
Engine.update(engine);
fill(50, 150, 50);
drawVertices(ground1.vertices);
drawVertices(ground2.vertices);
drawVertices(ground3.vertices);
drawVertices(propeller.vertices);
Body.setAngle(propeller, angle += angleSpeed);
Body.setAngularVelocity(propeller, angleSpeed);
generateRect(width / 2, 0);
generateEllipse(width/2, -50);
for (let i = 0; i < boxes.length; i++) {
fill(colorBoxes[i]);
drawVertices(boxes[i].vertices);
if (isOffScreen(boxes[i])) {
World.remove(engine.world, boxes[i]);
boxes.splice(i, 1);
colorBoxes.splice(i, 1);
i--;
}
}
for (let i = 0; i < circles.length; i++) {
fill(colorCircles[i]);
drawVertices(circles[i].vertices);
if (isOffScreen(circles[i])) {
World.remove(engine.world, circles[i]);
circles.splice(i, 1);
colorCircles.splice(i, 1);
i--;
}
}
console.log("Boxes: " + boxes.length);
console.log("Circles: " + circles.length);
console.log("Engine bodies: " + engine.world.bodies.length);
}
function isOffScreen(body) {
let pos = body.position;
return pos.y > height || pos.x < 0 || pos.x > width;
}
function generateRect(x, y) {
let b = Bodies.rectangle(x, y, random(10, 30), random(10, 30), {
restitution: 1.2,
friction: 0.5,
});
Matter.Body.setMass(b, 1);
boxes.push(b);
World.add(engine.world, [b]);
colorBoxes.push("rgba(" + Math.trunc(random(100, 250)).toString() + "," + Math.trunc(random(100, 250)).toString() + "," + Math.trunc(random(100, 250)).toString() + ", 0.5)");
}
function generateEllipse(x, y) {
let b = Bodies.circle(x, y, random(10, 30), {
restitution: 1.2,
friction: 0.5,
});
Matter.Body.setMass(b, 1);
circles.push(b);
World.add(engine.world, [b]);
colorCircles.push("rgba(" + Math.trunc(random(100, 250)).toString() + "," + Math.trunc(random(100, 250)).toString() + "," + Math.trunc(random(100, 250)).toString() + ", 0.5)");
}
function drawVertices(vertices) {
beginShape();
for (let i = 0; i < vertices.length; i++) {
vertex(vertices[i].x, vertices[i].y);
}
endShape();
}