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CM2030 Graphics Programming/Topic 2/2.3.3/sketch.js

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+let ball;
+
+function setup()
+{
+  createCanvas(900, 600);
+  ball = new Ball();
+}
+
+function draw()
+{
+  background(0);
+  ball.run();
+}
+
+class Ball
+{
+  constructor()
+  {
+    this.velocity = new createVector(0, 0);
+    this.location = new createVector(width/2, height/2);
+    this.acceleration = new createVector(0, 0);
+    this.maxVelocity = 10;
+  }
+
+  run()
+  {
+    this.draw();
+    this.move();
+    this.edges();
+  }
+
+  draw()
+  {
+    fill(125);
+    ellipse(this.location.x, this.location.y, 40, 40);
+  }
+
+  move()
+  {
+    let mouse = createVector(mouseX, mouseY);
+    let dir = p5.Vector.sub(mouse, this.location);
+    console.log(dir);
+    dir.normalize();
+    dir.mult(0.3);
+    this.acceleration = dir;
+
+    this.velocity.add(this.acceleration);
+    this.velocity.limit(this.maxVelocity);
+    this.location.add(this.velocity);
+  }
+
+  edges()
+  {
+    if (this.location.x < 0) this.location.x = width;
+    else if (this.location.x > width) this.location.x = 0;
+    else if (this.location.y < 0) this.location.y = height;
+    else if (this.location.y > height) this.location.y = 0;
+  }
+}