From c33729e03174b12afe68663cfb286d2c1e4ce2b5 Mon Sep 17 00:00:00 2001
From: Lev <levdoescode@gmail.com>
Date: Wed, 9 Jun 2021 01:47:54 -0500
Subject: [PATCH] Add a circle and a polygon

---
 CM2030 Graphics Programming/Topic 4/4.2.3/sketch.js | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/CM2030 Graphics Programming/Topic 4/4.2.3/sketch.js b/CM2030 Graphics Programming/Topic 4/4.2.3/sketch.js
index 4c9a296..e296cb2 100644
--- a/CM2030 Graphics Programming/Topic 4/4.2.3/sketch.js	
+++ b/CM2030 Graphics Programming/Topic 4/4.2.3/sketch.js	
@@ -5,19 +5,25 @@ let Engine = Matter.Engine,
 let engine;
 let box1;
 let box2;
-let ground;
+let ground1;
+let ground2;
+let circle, polygon;
 
 function setup() {
   createCanvas(900, 600);
   // create engine
   engine = Engine.create();
   box1 = Bodies.rectangle(200, 200, 80, 80, {restitution: .8, friction: 0.5});
+  circle = Bodies.circle(80, 0, 20, {restitution: .8, friction: 0.5});
+  polygon = Bodies.polygon(100, 0, 5, 30, {restitution: .8, friction: 0.5, frictionAir: 0.1});
+  Matter.Body.setMass(polygon, 0.2);
+  Matter.Body.setMass(circle, 20);
 
   let options = {isStatic: true, angle: Math.PI * 0.06};
   ground1 = Bodies.rectangle(100, 350, 500, 10, {isStatic: true, angle: Math.PI * 0.06});
   ground2 = Bodies.rectangle(500, 500, 500, 10, {isStatic: true, angle: Math.PI * -0.06});
   // add bodies to world
-  World.add(engine.world, [box1, ground1, ground2]);
+  World.add(engine.world, [box1, ground1, ground2, circle, polygon]);
 }
 
 function draw() {
@@ -32,6 +38,8 @@ function draw() {
   
   fill(50, 150, 50);
   drawVertices(ground2.vertices);
+  drawVertices(circle.vertices);
+  drawVertices(polygon.vertices);
 }
 
 function drawVertices(vertices)