From: Patrik Gornicz <Gornicz.P@gmail.com>
Date: Sat, 9 Aug 2008 17:37:30 +0000 (-0400)
Subject: changed CoR to 0.8, and implemented it for the screen effect
X-Git-Tag: physics-premerge~164
X-Git-Url: http://gitweb.pgornicz.com/gitweb.cgi?a=commitdiff_plain;h=d69c6a21342e11452960f3dd9be93ff0adacea39;p=libbear.git

changed CoR to 0.8, and implemented it for the screen effect
---

diff --git a/src/Effects/Screen.cpp b/src/Effects/Screen.cpp
index 44cce18..85759c8 100644
--- a/src/Effects/Screen.cpp
+++ b/src/Effects/Screen.cpp
@@ -41,6 +41,7 @@ Vector2 Screen::velocityDelta(const PhysicsEntity* e, float time_step) const
 
     Vector2 acc(0,0);
 
+    float CoR = e->CoR;
     float radius = 0;
     const Ball* b = dynamic_cast<const Ball*>(e);
     if( b != NULL )
@@ -48,16 +49,16 @@ Vector2 Screen::velocityDelta(const PhysicsEntity* e, float time_step) const
 
 
     if(pos.y > 600-radius && velo.y > 0)
-        acc.y += velo.y * -2;
+        acc.y += velo.y * -(1 + CoR);
 
     if(pos.y < 0+radius && velo.y < 0)
-        acc.y += velo.y * -2;
+        acc.y += velo.y * -(1 + CoR);
 
     if(pos.x > 800-radius && velo.x > 0)
-        acc.x += velo.x * -2;
+        acc.x += velo.x * -(1 + CoR);
 
     if(pos.x < 0+radius && velo.x < 0)
-        acc.x += velo.x * -2;
+        acc.x += velo.x * -(1 + CoR);
 
     return acc;
 }
diff --git a/src/Entities/PhysicsEntity.cpp b/src/Entities/PhysicsEntity.cpp
index 3354fe2..88c3525 100644
--- a/src/Entities/PhysicsEntity.cpp
+++ b/src/Entities/PhysicsEntity.cpp
@@ -25,7 +25,7 @@
 /// ***** Constructors/Destructors *****
 
 PhysicsEntity::PhysicsEntity(const Vector2& pos)
-    : Entity(pos), force(0,0), mass(1), CoR(1)
+    : Entity(pos), force(0,0), mass(1), CoR(0.8)
 {
 
 }