From ff82253a66ee51fe2f0c088ca964402d53545845 Mon Sep 17 00:00:00 2001
From: Matthew Kosarek
Date: Thu, 24 Jun 2021 11:30:36 -0400
Subject: (mkosarek) Rigidbody with rotations
---
2d/_collisions/polygon_polygon.html.content | 23 ++++++++++++++++++++---
1 file changed, 20 insertions(+), 3 deletions(-)
(limited to '2d/_collisions/polygon_polygon.html.content')
diff --git a/2d/_collisions/polygon_polygon.html.content b/2d/_collisions/polygon_polygon.html.content
index 2d6f6b7..ffa9b15 100644
--- a/2d/_collisions/polygon_polygon.html.content
+++ b/2d/_collisions/polygon_polygon.html.content
@@ -41,18 +41,35 @@
Given two polygons A and B:
- - For each edge on A, get the normal n of that edge.
+ - For each edge on A, get the normal n of that edge.
- Project each vertex v of A onto n. Return the minimum and maximum projection of all vertices.
- Repeat Step 2 for polygon B.
- If the min and max projections found in Steps 2 and 3 do NOT overlap, the polygons are not intersecting. Return false.
- If the projections overlap for each edge of both shapes, the shapes are intersecting. Return true.
+
+ And that is all there is to finding the intersection between two convex polygons.
+
+
+
+ SAT Collision Resolution
+
+ Now that we know our objects have intersecting, we want to be able to send them tumbling away from each other to simulate a collision. To do this, we will need to find the following things:
+
+ - Collision Normal: in what direction, point towards object A, did the polygons intersect
+ - Point of Application: at what point on each object did the objects first intersect
+ - Relative Velocity: easily found by taking the difference between the two velocities.
+
+
+ Collision Normal
+
+
+
-
- Live Example
+ Live Example of Intersection Detection
--
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