diff --git a/html/images/space.svg b/html/images/space.svg
index 8e893eb..7b572c6 100644
--- a/html/images/space.svg
+++ b/html/images/space.svg
@@ -140,14 +140,14 @@
     const pt = svg.createSVGPoint();
     const cornerPt = svg.createSVGPoint();
 
-    const points = wall.getAttribute('points').split(' ').map(coords => {
+    const wallCorners = wall.getAttribute('points').split(' ').map(coords => {
       const [x, y] = coords.split(',');
       return [+x, +y];
     });
 
     const triangleContainer = document.querySelector('#triangles');
     const lineContainer = document.querySelector('#lines');
-    const edgePts = points.map((pt, i) => [pt, points[(i + 1) % points.length]]);
+    const edgePts = wallCorners.map((pt, i) => [pt, wallCorners[(i + 1) % wallCorners.length]]);
     const drawCollisionLines = false;
 
     function drawEdges(lpts) {
@@ -339,8 +339,8 @@
       });
     }
 
-    function detectCollision(points, [xc, yc], edges) {
-      const cornerCollision = points.some(([x, y]) => {
+    function detectCollision(corners, [xc, yc], edges) {
+      const cornerCollision = corners.some(([x, y]) => {
         cornerPt.x = x - xc;
         cornerPt.y = y - yc;
 
@@ -466,7 +466,7 @@
         drawEdges(edgePts);
       }
 
-      const collision = detectCollision(points, position, findEdges(edgePts, position));
+      const collision = detectCollision(wallCorners, position, findEdges(edgePts, position));
       wall.setAttribute('fill', collision ? 'red' : 'black');
 
       if (collision) {