From: Patrik Gornicz <Gornicz.P@gmail.com>
Date: Thu, 21 Aug 2008 20:06:23 +0000 (-0400)
Subject: changed to a better make header hack ... added position delta to screen collisions... 
X-Git-Tag: v0.05~2
X-Git-Url: http://gitweb.pgornicz.com/gitweb.cgi?p=physics.git;a=commitdiff_plain;h=5d5a6f3fc2e0bd7ef539cc7ac76c7650c8a80431

changed to a better make header hack ... added position delta to screen collisions to insure balls stay in the screen
---

diff --git a/src/Effects/Screen.cpp b/src/Effects/Screen.cpp
index 85759c8..e4ef901 100644
--- a/src/Effects/Screen.cpp
+++ b/src/Effects/Screen.cpp
@@ -34,6 +34,34 @@ Screen::~Screen()
 
 /// ***** Public Class Methods *****
 
+Vector2 Screen::positionDelta(const PhysicsEntity* e, float time_step) const
+{
+    const Vector2& pos = e->positionRaw();
+    const Vector2& velo = e->velocityRaw();
+
+    Vector2 acc(0,0);
+
+    float radius = 0;
+    const Ball* b = dynamic_cast<const Ball*>(e);
+    if( b != NULL )
+        radius = b->getRadius();
+
+
+    if(pos.y > 600-radius && velo.y > 0)
+        acc.y += 600-radius - pos.y;
+
+    if(pos.y < 0+radius && velo.y < 0)
+        acc.y += 0+radius - pos.y;
+
+    if(pos.x > 800-radius && velo.x > 0)
+        acc.x += 800-radius - pos.x;
+
+    if(pos.x < 0+radius && velo.x < 0)
+        acc.x += 0+radius - pos.x;
+
+    return acc;
+}
+
 Vector2 Screen::velocityDelta(const PhysicsEntity* e, float time_step) const
 {
     const Vector2& pos = e->positionRaw();
diff --git a/src/Effects/Screen.h b/src/Effects/Screen.h
index 890fae8..ff8111a 100644
--- a/src/Effects/Screen.h
+++ b/src/Effects/Screen.h
@@ -30,6 +30,7 @@ class Screen: public Effect
     Screen();
     ~Screen();
 
+    Vector2 positionDelta(const PhysicsEntity*, float) const;
     Vector2 velocityDelta(const PhysicsEntity*, float) const;
 };
 
diff --git a/src/Makefile b/src/Makefile
index 638655a..3ed4b86 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -60,7 +60,7 @@ DEPS := ${SRCS:.cpp=.d}
 DEPS := $(addprefix ${DEPSDIR},${DEPS})
 
 HRDS := ${SRCS:.cpp=.h}
-HRDS := ${HRDS:main.h=} # remove main.h
+HRDS := $(filter-out main.h,$HRDS) # remove main.h
 HRDS += debug.h
 
 HRDS += graphics/colors.h