1 files changed, 9 insertions, 1 deletions
diff --git a/frontend/_shared/math/line2.js b/frontend/_shared/math/line2.js
index a9e72be..8b30c1c 100644
--- a/frontend/_shared/math/line2.js
+++ b/frontend/_shared/math/line2.js
@@ -32,7 +32,8 @@ function line2(pStart, pEnd, pGl, pColor, pMass) {
         length: length2(lDiffVector),
         mass: pMass,
         direction: normalize2(lDiffVector),
-        velocity: vec2(0, 0)
+        velocity: vec2(0, 0),
+        position: vec2()
     };
 }
 
@@ -40,6 +41,13 @@ function getLine2MomentOfInertia(pLine) {
     return (1.0 / 12.0) * pLine.mass * Math.pow(pLine.length, 2);
 }
 
+function getLine2MidPoint(pLine) {
+    return {
+        x: (pLine.end.x + pLine.start.x) / 2.0,
+        y: (pLine.end.y + pLine.start.y) / 2.0
+    }
+}
+
 function renderLine2(pGl, pProgramInfo, pLine) {
     pGl.uniformMatrix4fv(pProgramInfo.uniformLocations.model, false, mat4()); // Model on a line is always default matrix
     pGl.bindBuffer(pGl.ARRAY_BUFFER, pLine.buffer);