Initial Mercurial commit.

src/modules/physics/box2d/Contact.cpp

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+/**
+* Copyright (c) 2006-2009 LOVE Development Team
+* 
+* This software is provided 'as-is', without any express or implied
+* warranty.  In no event will the authors be held liable for any damages
+* arising from the use of this software.
+* 
+* Permission is granted to anyone to use this software for any purpose,
+* including commercial applications, and to alter it and redistribute it
+* freely, subject to the following restrictions:
+* 
+* 1. The origin of this software must not be misrepresented; you must not
+*    claim that you wrote the original software. If you use this software
+*    in a product, an acknowledgment in the product documentation would be
+*    appreciated but is not required.
+* 2. Altered source versions must be plainly marked as such, and must not be
+*    misrepresented as being the original software.
+* 3. This notice may not be removed or altered from any source distribution.
+**/
+
+#include "Contact.h"
+#include "World.h"
+
+namespace love
+{
+namespace physics
+{
+namespace box2d
+{
+	Contact::Contact(World * world, const b2ContactPoint * point)
+		: point(*point), world(world)
+	{
+		world->retain();
+	}
+
+	Contact::~Contact()
+	{
+		world->release();
+	}
+
+	int Contact::getPosition(lua_State * L)
+	{
+		love::luax_assert_argc(L, 0, 0);
+		lua_pushnumber(L, world->scaleUp(point.position.x));
+		lua_pushnumber(L, world->scaleUp(point.position.y));
+		return 2;
+	}
+
+	int Contact::getVelocity(lua_State * L)
+	{
+		love::luax_assert_argc(L, 0, 0);
+		lua_pushnumber(L, world->scaleUp(point.velocity.x));
+		lua_pushnumber(L, world->scaleUp(point.velocity.y));
+		return 2;
+	}
+
+	int Contact::getNormal(lua_State * L)
+	{
+		love::luax_assert_argc(L, 0, 0);
+		lua_pushnumber(L, world->scaleUp(point.normal.x));
+		lua_pushnumber(L, world->scaleUp(point.normal.y));
+		return 2;
+	}
+
+	float Contact::getSeparation() const
+	{
+		return world->scaleUp(point.separation);
+	}
+
+	float Contact::getFriction() const
+	{
+		return point.friction;
+	}
+
+	float Contact::getRestitution() const
+	{
+		return point.restitution;
+	}
+
+} // box2d
+} // physics
+} // love