mirror of
https://github.com/love2d/love.git
synced 2026-08-12 16:40:57 +02:00
Bill Meltsner
136 lines
3.2 KiB
C++
136 lines
3.2 KiB
C++
/**
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* Copyright (c) 2006-2011 LOVE Development Team
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*
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* This software is provided 'as-is', without any express or implied
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* warranty. In no event will the authors be held liable for any damages
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* arising from the use of this software.
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*
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* Permission is granted to anyone to use this software for any purpose,
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* including commercial applications, and to alter it and redistribute it
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* freely, subject to the following restrictions:
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*
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* 1. The origin of this software must not be misrepresented; you must not
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* claim that you wrote the original software. If you use this software
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* in a product, an acknowledgment in the product documentation would be
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* appreciated but is not required.
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* 2. Altered source versions must be plainly marked as such, and must not be
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* misrepresented as being the original software.
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* 3. This notice may not be removed or altered from any source distribution.
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**/
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#include "RevoluteJoint.h"
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#include <common/math.h>
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// Module
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#include "Body.h"
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#include "World.h"
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#include "Physics.h"
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namespace love
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{
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namespace physics
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{
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namespace box2d
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{
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RevoluteJoint::RevoluteJoint(Body * body1, Body * body2, float x, float y, bool collideConnected)
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: Joint(body1, body2), joint(NULL)
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{
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b2RevoluteJointDef def;
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def.Initialize(body1->body, body2->body, Physics::scaleDown(b2Vec2(x,y)));
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def.collideConnected = collideConnected;
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joint = (b2RevoluteJoint*)createJoint(&def);
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}
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RevoluteJoint::~RevoluteJoint()
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{
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destroyJoint(joint);
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joint = 0;
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}
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float RevoluteJoint::getJointAngle() const
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{
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return joint->GetJointAngle();
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}
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float RevoluteJoint::getJointSpeed() const
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{
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return joint->GetJointSpeed();
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}
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void RevoluteJoint::enableMotor(bool motor)
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{
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return joint->EnableMotor(motor);
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}
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bool RevoluteJoint::isMotorEnabled() const
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{
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return joint->IsMotorEnabled();
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}
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void RevoluteJoint::setMaxMotorTorque(float torque)
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{
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joint->SetMaxMotorTorque(Physics::scaleDown(Physics::scaleDown(torque)));
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}
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void RevoluteJoint::setMotorSpeed(float speed)
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{
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joint->SetMotorSpeed(speed);
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}
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float RevoluteJoint::getMotorSpeed() const
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{
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return joint->GetMotorSpeed();
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}
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float RevoluteJoint::getMotorTorque(float inv_dt) const
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{
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return Physics::scaleUp(Physics::scaleUp(joint->GetMotorTorque(inv_dt)));
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}
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void RevoluteJoint::enableLimit(bool limit)
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{
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joint->EnableLimit(limit);
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}
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bool RevoluteJoint::isLimitEnabled() const
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{
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return joint->IsLimitEnabled();
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}
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void RevoluteJoint::setUpperLimit(float limit)
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{
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joint->SetLimits(joint->GetLowerLimit(), limit);
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}
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void RevoluteJoint::setLowerLimit(float limit)
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{
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joint->SetLimits(limit, joint->GetUpperLimit());
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}
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void RevoluteJoint::setLimits(float lower, float upper)
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{
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joint->SetLimits(lower, upper);
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}
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float RevoluteJoint::getLowerLimit() const
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{
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return joint->GetLowerLimit();
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}
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float RevoluteJoint::getUpperLimit() const
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{
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return joint->GetUpperLimit();
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}
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int RevoluteJoint::getLimits(lua_State * L)
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{
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lua_pushnumber(L, joint->GetLowerLimit());
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lua_pushnumber(L, joint->GetUpperLimit());
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return 2;
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}
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} // box2d
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} // physics
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} // love
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