From 8db51f8870d8c78ed8f35e5ea35ea566a9fe0a3b Mon Sep 17 00:00:00 2001
From: Catalin Constantin Mititiuc <webdevcat@proton.me>
Date: Sat, 3 Jan 2026 13:53:05 -0800
Subject: [PATCH] Refactor

---
 html/images/space.svg | 48 +++++++++++++++++++++++++------------------
 1 file changed, 28 insertions(+), 20 deletions(-)

diff --git a/html/images/space.svg b/html/images/space.svg
index a1e02e2..145018f 100644
--- a/html/images/space.svg
+++ b/html/images/space.svg
@@ -194,8 +194,8 @@
     const s = {
       position: { x: 0, y: 0 },
       // velocity: { x: 5, y: -10 },
+      velocity: { x: 5*mult, y: -10*mult },
       // velocity: { x: -5*mult, y: 10*mult },
-      velocity: { x: -5*mult, y: 10*mult },
       // velocity: { x: 0, y: -10 },
       // velocity: { x: 10, y: 10 },
       // velocity: { x: -10, y: -10 },
@@ -749,6 +749,24 @@
       };
     }
 
+    function cornerContactPosition(xc, yc, x, y, corner, radius) {
+      const diffx = xc - x;
+      const diffy = yc - y;
+      const detv = xc * y - yc * x;
+      const dv = Math.sqrt(diffy ** 2 + diffx ** 2);
+      const slopep = slope({ xa: x, ya: y, xb: xc, yb: yc });
+      const posNormIntxn = perpIntxn(slopep, x, y, corner.x, corner.y);
+      const d = Math.abs(diffy * corner.x - diffx * corner.y + detv) / dv;
+      const b = Math.sqrt(Math.max(radius, d) ** 2 - Math.min(radius, d) ** 2);
+
+      const cl = document.createElementNS(namespaceURIsvg, 'line');
+      cl.setAttribute('x1', posNormIntxn.x);
+      cl.setAttribute('y1', posNormIntxn.y);
+      cl.setAttribute('x2', x);
+      cl.setAttribute('y2', y);
+      return cl.getPointAtLength(b);
+    }
+
     function collisionPosition(edge, position, velocity, radius) {
       const baseSlope = slope(edge);
       // if (Object.is(baseSlope, 0)) s.isLanded = true;
@@ -872,11 +890,11 @@
         const t = -((x2-x1)*(y3-y1)-(x3-x1)*(y2-y1))/((x2-x1)*(y4-y3)-(x4-x3)*(y2-y1));
         const roundedT = +t.toFixed(2);
 
-        console.log("corner", c.corner);
-        console.log("positionSeg", positionSeg);
-        console.log("cornerSeg", cornerSeg);
-        console.log("s", s, "t", t);
-        console.log("d", d, "shipRadius", shipRadius);
+        // console.log("corner", c.corner);
+        // console.log("positionSeg", positionSeg);
+        // console.log("cornerSeg", cornerSeg);
+        // console.log("s", s, "t", t);
+        // console.log("d", d, "shipRadius", shipRadius);
 
         return d <= shipRadius || (s >= 0 && roundedT <= 1);
       });
@@ -888,22 +906,12 @@
         // const baseSlope = slope(s.collision.edge);
         // if (Object.is(baseSlope, 0) && s.gearDown) s.isLanded = true;
         // const clPos = collisionPosition(s.collision.edge, s.position, s.velocity, s.gearDown && Object.is(baseSlope, 0) ? shipRadius + 1 : shipRadius);
-        const diffx = xc - x;
-        const diffy = yc - y;
-        const detv = xc * y - yc * x;
-        const dv = Math.sqrt(diffy ** 2 + diffx ** 2);
-        const slopep = slope({ xa: x, ya: y, xb: xc, yb: yc });
-        const posNormIntxn = perpIntxn(slopep, x, y, s.collision.corner.x, s.collision.corner.y);
-        const d = Math.abs(diffy * s.collision.corner.x - diffx * s.collision.corner.y + detv) / dv;
-        const b = Math.sqrt(Math.max(shipRadius, d) ** 2 - Math.min(shipRadius, d) ** 2);
 
-        const cl = document.createElementNS(namespaceURIsvg, 'line');
-        cl.setAttribute('x1', posNormIntxn.x);
-        cl.setAttribute('y1', posNormIntxn.y);
-        cl.setAttribute('x2', x);
-        cl.setAttribute('y2', y);
+        let posP;
+        if (s.collision.corner) {
+          posP = cornerContactPosition(xc, yc, x, y, s.collision.corner, shipRadius);
+        }
 
-        const posP = cl.getPointAtLength(b);
         s.velocity = { x: 0, y: 0 };
         s.position = { x: posP.x, y: posP.y }
         s.node.style.transform = `translate(${s.position.x}px, ${s.position.y}px)`;