From d1b528b01796601c2bfea7b1a9813e5907e1c728 Mon Sep 17 00:00:00 2001
From: Matthew Kosarek <matthew.kosarek@vention.cc>
Date: Sat, 27 Feb 2021 17:32:32 -0500
Subject: Close to being done on line-circle collisions, but it appears we're
 running into a rotation problem. Going to work on square-line collisions in
 the meantime

---
 frontend/_shared/math/point2.js | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 frontend/_shared/math/point2.js

(limited to 'frontend/_shared/math/point2.js')

diff --git a/frontend/_shared/math/point2.js b/frontend/_shared/math/point2.js
new file mode 100644
index 0000000..eeacd91
--- /dev/null
+++ b/frontend/_shared/math/point2.js
@@ -0,0 +1,16 @@
+function point2(x = 0, y = 0) {
+    return { x: x, y: y };
+}
+
+function distanceFromPoint2ToLine2(pPoint, pLine) {
+    // Check out this wikapedia article for more information:
+    // https://en.wikipedia.org/wiki/Distance_from_a_point_to_a_line
+    var x0 = pPoint.x,
+        y0 = pPoint.y,
+        x1 = pLine.start.x,
+        y1 = pLine.start.y,
+        x2 = pLine.end.x,
+        y2 = pLine.end.y;
+
+    return Math.abs((x2 - x1) * (y1 - y0) - (x1 - x0) * (y2 - y1)) / Math.sqrt(Math.pow(x2 - x1, 2) + Math.pow(y2 - y1, 2));
+}
\ No newline at end of file
-- 
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