Merge default into minor

--HG--
branch : minor

src/modules/physics/box2d/Joint.h

@@ -84,8 +84,8 @@ public:
 	 **/
 	Type getType() const;
 
-	Body *getBodyA() const;
-	Body *getBodyB() const;
+	virtual Body *getBodyA() const;
+	virtual Body *getBodyB() const;
 
 	/**
 	 * Gets the anchor positions of the Joint in world

src/modules/physics/box2d/MouseJoint.cpp

@@ -91,6 +91,16 @@ float MouseJoint::getDampingRatio() const
 	return joint->GetDampingRatio();
 }
 
+Body *MouseJoint::getBodyA() const
+{
+	return Joint::getBodyB();
+}
+
+Body *MouseJoint::getBodyB() const
+{
+	return nullptr;
+}
+
 } // box2d
 } // physics
 } // love

src/modules/physics/box2d/MouseJoint.h

@@ -95,6 +95,9 @@ public:
 	 **/
 	float getDampingRatio() const;
 
+	virtual Body *getBodyA() const;
+	virtual Body *getBodyB() const;
+
 private:
 	// The Box2D MouseJoint object.
 	b2MouseJoint *joint;

src/modules/physics/box2d/Physics.cpp

@@ -223,9 +223,9 @@ MouseJoint *Physics::newMouseJoint(Body *body, float x, float y)
 	return new MouseJoint(body, x, y);
 }
 
-RevoluteJoint *Physics::newRevoluteJoint(Body *body1, Body *body2, float x, float y, bool collideConnected)
+RevoluteJoint *Physics::newRevoluteJoint(Body *body1, Body *body2, float xA, float yA, float xB, float yB, bool collideConnected)
 {
-	return new RevoluteJoint(body1, body2, x, y, collideConnected);
+	return new RevoluteJoint(body1, body2, xA, yA, xB, yB, collideConnected);
 }
 
 PrismaticJoint *Physics::newPrismaticJoint(Body *body1, Body *body2, float xA, float yA, float xB, float yB, float ax, float ay, bool collideConnected)

src/modules/physics/box2d/Physics.h

@@ -171,11 +171,13 @@ public:
 
 	/**
 	 * Creates a new RevoluteJoint connecting body1 with body2.
-	 * @param x Anchor along the x-axis. (World coordinates)
-	 * @param y Anchor along the y-axis. (World coordinates)
+	 * @param xA Anchor for body 1 along the x-axis. (World coordinates)
+	 * @param yA Anchor for body 1 along the y-axis. (World coordinates)
+	 * @param xB Anchor for body 2 along the x-axis. (World coordinates)
+	 * @param yB Anchor for body 2 along the y-axis. (World coordinates)
 	 * @param collideConnected Whether the connected bodies should collide with each other. Defaults to false.
 	 **/
-	RevoluteJoint *newRevoluteJoint(Body *body1, Body *body2, float x, float y, bool collideConnected);
+	RevoluteJoint *newRevoluteJoint(Body *body1, Body *body2, float xA, float yA, float xB, float yB, bool collideConnected);
 
 	/**
 	 * Creates a new PrismaticJoint connecting body1 with body2.

src/modules/physics/box2d/PrismaticJoint.cpp

@@ -138,6 +138,12 @@ int PrismaticJoint::getLimits(lua_State *L)
 	return 2;
 }
 
+int PrismaticJoint::getAxis(lua_State *L)
+{
+	lua_pushnumber(L, joint->GetLocalAxisA().x);
+	lua_pushnumber(L, joint->GetLocalAxisA().y);
+	return 2;
+}
 
 } // box2d
 } // physics

src/modules/physics/box2d/PrismaticJoint.h

@@ -134,6 +134,13 @@ public:
 	 **/
 	int getLimits(lua_State *L);
 
+	/**
+	 * Gets the axis unit vector, relative to body1.
+	 * @returns The X component of the axis unit vector.
+	 * @returns The Y component of the axis unit vector.
+	 **/
+	int getAxis(lua_State *L);
+
 private:
 
 	// The Box2D prismatic joint object.

src/modules/physics/box2d/RevoluteJoint.cpp

@@ -34,12 +34,13 @@ namespace physics
 namespace box2d
 {
 
-RevoluteJoint::RevoluteJoint(Body *body1, Body *body2, float x, float y, bool collideConnected)
+RevoluteJoint::RevoluteJoint(Body *body1, Body *body2, float xA, float yA, float xB, float yB, bool collideConnected)
 	: Joint(body1, body2)
 	, joint(NULL)
 {
 	b2RevoluteJointDef def;
-	def.Initialize(body1->body, body2->body, Physics::scaleDown(b2Vec2(x,y)));
+	def.Initialize(body1->body, body2->body, Physics::scaleDown(b2Vec2(xA,yA)));
+	def.localAnchorB = body2->body->GetLocalPoint(Physics::scaleDown(b2Vec2(xB, yB)));
 	def.collideConnected = collideConnected;
 	joint = (b2RevoluteJoint *)createJoint(&def);
 }

src/modules/physics/box2d/RevoluteJoint.h

@@ -42,7 +42,7 @@ public:
 	/**
 	 * Creates a new RevoluteJoint connecting body1 and body2.
 	 **/
-	RevoluteJoint(Body *body1, Body *body2, float x, float y, bool collideConnected);
+	RevoluteJoint(Body *body1, Body *body2, float xA, float yA, float xB, float yB, bool collideConnected);
 
 	virtual ~RevoluteJoint();
 

src/modules/physics/box2d/WheelJoint.cpp

@@ -113,6 +113,12 @@ float WheelJoint::getSpringDampingRatio() const
 	return joint->GetSpringDampingRatio();
 }
 
+int WheelJoint::getAxis(lua_State *L)
+{
+	lua_pushnumber(L, joint->GetLocalAxisA().x);
+	lua_pushnumber(L, joint->GetLocalAxisA().y);
+	return 2;
+}
 
 } // box2d
 } // physics

src/modules/physics/box2d/WheelJoint.h

@@ -114,6 +114,13 @@ public:
 	 **/
 	float getSpringDampingRatio() const;
 
+	/**
+	 * Gets the axis unit vector, relative to body1.
+	 * @returns The X component of the axis unit vector.
+	 * @returns The Y component of the axis unit vector.
+	 **/
+	int getAxis(lua_State *L);
+
 private:
 
 	// The Box2D wheel joint object.

src/modules/physics/box2d/wrap_Physics.cpp

@@ -215,12 +215,25 @@ int w_newRevoluteJoint(lua_State *L)
 {
 	Body *body1 = luax_checkbody(L, 1);
 	Body *body2 = luax_checkbody(L, 2);
-	float x = (float)luaL_checknumber(L, 3);
-	float y = (float)luaL_checknumber(L, 4);
-	bool collideConnected = luax_optboolean(L, 5, false);
+	float xA = (float)luaL_checknumber(L, 3);
+	float yA = (float)luaL_checknumber(L, 4);
+	float xB, yB;
+	bool collideConnected;
+	if (lua_gettop(L) >= 6)
+	{
+		xB = (float)luaL_checknumber(L, 5);
+		yB = (float)luaL_checknumber(L, 6);
+		collideConnected = luax_optboolean(L, 7, false);
+	}
+	else
+	{
+		xB = xA;
+		yB = yA;
+		collideConnected = luax_optboolean(L, 5, false);
+	}
 	RevoluteJoint *j;
 	luax_catchexcept(L, [&]() {
-		j = instance()->newRevoluteJoint(body1, body2, x, y, collideConnected);
+		j = instance()->newRevoluteJoint(body1, body2, xA, yA, xB, yB, collideConnected);
 	});
 	luax_pushtype(L, PHYSICS_REVOLUTE_JOINT_ID, j);
 	j->release();

src/modules/physics/box2d/wrap_PrismaticJoint.cpp

@@ -164,6 +164,13 @@ int w_PrismaticJoint_getLimits(lua_State *L)
 	return t->getLimits(L);
 }
 
+int w_PrismaticJoint_getAxis(lua_State *L)
+{
+	PrismaticJoint *t = luax_checkprismaticjoint(L, 1);
+	lua_remove(L, 1);
+	return t->getAxis(L);
+}
+
 static const luaL_Reg w_PrismaticJoint_functions[] =
 {
 	{ "getJointTranslation", w_PrismaticJoint_getJointTranslation },
@@ -183,6 +190,7 @@ static const luaL_Reg w_PrismaticJoint_functions[] =
 	{ "getLowerLimit", w_PrismaticJoint_getLowerLimit },
 	{ "getUpperLimit", w_PrismaticJoint_getUpperLimit },
 	{ "getLimits", w_PrismaticJoint_getLimits },
+	{ "getAxis", w_PrismaticJoint_getAxis },
 	{ 0, 0 }
 };
 

src/modules/physics/box2d/wrap_WheelJoint.cpp

@@ -132,6 +132,13 @@ int w_WheelJoint_getSpringDampingRatio(lua_State *L)
 	return 1;
 }
 
+int w_WheelJoint_getAxis(lua_State *L)
+{
+	WheelJoint *t = luax_checkwheeljoint(L, 1);
+	lua_remove(L, 1);
+	return t->getAxis(L);
+}
+
 static const luaL_Reg w_WheelJoint_functions[] =
 {
 	{ "getJointTranslation", w_WheelJoint_getJointTranslation },
@@ -147,6 +154,7 @@ static const luaL_Reg w_WheelJoint_functions[] =
 	{ "getSpringFrequency", w_WheelJoint_getSpringFrequency },
 	{ "setSpringDampingRatio", w_WheelJoint_setSpringDampingRatio },
 	{ "getSpringDampingRatio", w_WheelJoint_getSpringDampingRatio },
+	{ "getAxis", w_WheelJoint_getAxis },
 	{ 0, 0 }
 };