WIP: found collision position

html/images/space.svg

@@ -88,6 +88,8 @@
 
     #lines circle {
       fill: purple;
+      opacity: 0.2;
+      r: 5px;
     }
   </style>
 
@@ -758,7 +760,7 @@
         const baseVelIntxn = lineIntxnPt(baseLine, velocityLine);
         const baseSegLength = distance(baseNrmlIntxn.x, baseNrmlIntxn.y , baseVelIntxn.x, baseVelIntxn.y);
         const normalSegLength = distance(baseNrmlIntxn.x, baseNrmlIntxn.y, s.position.x, s.position.y);
-        console.log("distance", distance(baseNrmlIntxn.x, baseNrmlIntxn.y , baseVelIntxn.x, baseVelIntxn.y));
+        console.log("distance", baseSegLength);
         const theta = Math.atan(normalSegLength / baseSegLength);
         console.log("theta", theta);
         // const contactPos = { x: Math.acos() }
@@ -786,6 +788,19 @@
         g.appendChild(el);
         g.appendChild(star);
         linesContainer.appendChild(g);
+
+        const cl = document.createElementNS(namespaceURIsvg, 'line');
+        cl.setAttribute('x1', baseVelIntxn.x);
+        cl.setAttribute('y1', baseVelIntxn.y);
+        cl.setAttribute('x2', s.position.x);
+        cl.setAttribute('y2', s.position.y);
+        const clPt = cl.getPointAtLength(h);
+        console.log(clPt);
+
+        star.setAttribute('cx', clPt.x);
+        star.setAttribute('cy', clPt.y);
+
+
         return g;
       });
     }