proto: patching robot movement

1 files changed, 11 insertions, 1 deletions

diff --git a/index.js b/index.js
index 58617f1..b4b6154 100644
--- a/index.js
+++ b/index.js
@@ -43,6 +43,8 @@ canvas.addEventListener('mousedown', (e) => {
     cross.style.left = e.layerX - canvasOffsetX + "px"
     cross.style.top = e.layerY - canvasOffsetY + "px"
 
+    
+    temp = angle
     angle = Math.atan(x/Math.abs(y))
 
     sym = 1
@@ -53,9 +55,14 @@ canvas.addEventListener('mousedown', (e) => {
     if (y > 0) {
         angle = sym*Math.PI - angle
     }
+    console.log(temp)
+    console.log(angle)
 
     robot.style.transform = 'translate(-50%, -50%) rotate('+ angle +'rad)';
-    moveTo(x * scale,y * scale)
+    a = -(e.layerX - canvasOffsetX - canvas.width/2) * scale
+    b = -(e.layerY - canvasOffsetY - canvas.height/2) * scale
+    rot = (angle - temp)
+    moveTo(a*Math.cos(-rot)- b * Math.sin(-rot),a * Math.sin(-rot) + b*Math.cos(-rot))
     
     moveAll(x,y)
 });
@@ -109,6 +116,9 @@ reset.onclick = () => {
     drawings = [];
     angle = 0
     robot.style.transform = 'translate(-50%, -50%) rotate(0deg)';
+    a = canvas.width/2 + canvasOffsetX;
+    b = canvas.height/2 + canvasOffsetY;
+    ctx.clearRect(-a,-b,canvas.width,canvas.height);
 }
 
 function resizeCanvas() {