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+Subproject commit b1f425c6d5748822877776ec12c8c92ee086364e
diff --git a/javascript/polygonCollision/index.html b/javascript/polygonCollision/index.html
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+ Back to Portfolio
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diff --git a/javascript/polygonCollision/script.js b/javascript/polygonCollision/script.js
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+class Box {
+ constructor(x, y, w, h, rotation = 0.0) {
+ this.x = x //box center x
+ this.y = x //box center y
+ this.w = w //box width
+ this.h = h //box height
+ this.rotation = rotation % 360 * Math.PI / 180
+ }
+
+ setRotation(degrees) {
+ this.rotation = degrees % 360 * Math.PI / 180
+ }
+
+ render(ctx) {
+ ctx.fillStyle = "rgb(0,0,255)"
+ ctx.fillRect(this.x - 1.5, this.y - 1.5, 3, 3)
+ let hw = this.w/2
+ let hh = this.h/2
+
+ let tl = {x: -hw, y: -hh}
+ ctx.fillStyle = "rgb(255,0,0)"
+ ctx.fillRect(this.x + tl.x - 1.5,this.y + tl.y - 1.5, 3, 3)
+ let tlm = Math.sqrt(tl.x*tl.x + tl.y*tl.y)
+ let tlr = this.rotation + Math.tan(-tl.y / tl.x) - Math.PI / 4
+ tl = {x: this.x + tlm * Math.cos(tlr), y: this.y + tlm * Math.sin(tlr)}
+ ctx.fillStyle = "rgb(0,0,255)"
+ ctx.fillRect(tl.x - 1.5, tl.y - 1.5, 3, 3)
+
+ let tr = {x: +hw, y: -hh}
+ ctx.fillStyle = "rgb(255,0,0)"
+ ctx.fillRect(this.x + tr.x - 1.5,this.y + tr.y - 1.5, 3, 3)
+ let trm = Math.sqrt(tr.x*tr.x + tr.y*tr.y)
+ let trr = this.rotation + Math.tan(-tr.y / tr.x) - Math.PI * 3 / 4
+ tr = {x: this.x + trm * Math.cos(trr), y: this.y + trm * Math.sin(trr)}
+ ctx.fillStyle = "rgb(0,0,255)"
+ ctx.fillRect(tr.x - 1.5, tr.y - 1.5, 3, 3)
+
+ let bl = {x: -hw, y: +hh}
+ ctx.fillStyle = "rgb(255,0,0)"
+ ctx.fillRect(this.x + bl.x - 1.5,this.y + bl.y - 1.5, 3, 3)
+ let blm = Math.sqrt(bl.x*bl.x + bl.y*bl.y)
+ let blr = this.rotation + Math.tan(-bl.y / bl.x)
+ bl = {x: this.x + blm * Math.cos(blr), y: this.y + blm * Math.sin(blr)}
+ ctx.fillStyle = "rgb(0,0,255)"
+ ctx.fillRect(bl.x - 1.5, bl.y - 1.5, 3, 3)
+
+ let br = {x: +hw, y: +hh}
+ ctx.fillStyle = "rgb(255,0,0)"
+ ctx.fillRect(this.x + br.x - 1.5,this.y + br.y - 1.5, 3, 3)
+ let brm = Math.sqrt(br.x*br.x + br.y*br.y)
+ let brr = this.rotation + Math.tan(-br.y / br.x) - Math.PI * 3 / 4
+ br = {x: this.x + brm * Math.cos(brr), y: this.y + brm * Math.sin(brr)}
+ ctx.fillStyle = "rgb(0,0,255)"
+ ctx.fillRect(br.x - 1.5, br.y - 1.5, 3, 3)
+
+ // let tr = {x: +hw, y: +hh}
+ // let bl = {x: -hw, y: -hh}
+ // let br = {x: +hw, y: +hh}
+
+ ctx.lineWidth = 1
+ ctx.strokeStyle = "rgb(0,0,0)"
+ ctx.beginPath();
+ ctx.moveTo(this.x, this.y)
+ ctx.lineTo(tl.x, tl.y)
+ ctx.stroke();
+
+ ctx.moveTo(tl.x, tl.y)
+ ctx.lineTo(tr.x, tr.y)
+ ctx.stroke()
+
+ }
+
+}
+
+function startup() {
+ console.log("Starting simulation")
+
+ let newBox = new Box(width / 2, height / 2, 50, 50, 10)
+ newBox.render(ctx)
+
+ // window.requestAnimationFrame(loop)
+}
+
+window.addEventListener('load', (event) => {
+ startup()
+})
+
+const width = 1000
+const height = 1000
+
+const canvas = document.getElementById("source");
+const ctx = canvas.getContext("2d");
+ctx.canvas.width = width
+ctx.canvas.height = height
+
+