From a00c0aab1eb5a7a55bef8ca08115bdd722ab5699 Mon Sep 17 00:00:00 2001
From: Matthew Kosarek <mattkae@protonmail.com>
Date: Sun, 16 May 2021 19:50:15 -0400
Subject: Moved the frontend directory up so that it no longer exists

---
 _shared/math/collision.js | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 _shared/math/collision.js

(limited to '_shared/math/collision.js')

diff --git a/_shared/math/collision.js b/_shared/math/collision.js
new file mode 100644
index 0000000..8e4be7d
--- /dev/null
+++ b/_shared/math/collision.js
@@ -0,0 +1,26 @@
+/// <reference path="vec2.js" />
+/// <reference path="line2.js" />
+/// <reference path="circle.js" />
+/// <reference path="mat4.js" />
+/// <reference path="point2.js" />
+
+/**
+ * 
+ * @param {circle} pCircle 
+ * @param {line2} pLine 
+ */
+function lineCircleCollision2(pCircle, pLine) {
+    return distanceFromPoint2ToLine2(pCircle.position, pLine) <= pCircle.radius;
+}
+
+function getLineCircleCollison2Data(pCircle, pLine) {
+    const lCollisionNormal = pLine.normal,
+        lCollisionPoint = addVec2(pCircle.position, scaleVec2(negate2(lCollisionNormal), pCircle.radius));
+        
+    return {
+        relativeVelocity:           subVec2(pCircle.velocity, pLine.velocity),
+        collisionNormal:            lCollisionNormal,
+        firstPointOfApplication:    subVec2(lCollisionPoint, pCircle.position),
+        secondPointOfApplication:   subVec2(lCollisionPoint, pLine.start)
+    }
+}
\ No newline at end of file
-- 
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