mirror of
https://github.com/love2d/love.git
synced 2026-08-15 15:51:12 +02:00
Alex Szpakowski
138 lines
3.0 KiB
C++
138 lines
3.0 KiB
C++
/**
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* Copyright (c) 2006-2016 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 "ChainShape.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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#include "common/Memoizer.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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ChainShape::ChainShape(b2ChainShape *c, bool loop, bool own)
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: Shape(c, own), loop(loop)
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{
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}
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ChainShape::~ChainShape()
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{
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}
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void ChainShape::setNextVertex(float x, float y)
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{
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if (loop)
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{
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throw love::Exception("Physics error: Can't call setNextVertex on a loop ChainShape");
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return;
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}
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b2Vec2 v(x, y);
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b2ChainShape *c = (b2ChainShape *)shape;
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c->SetNextVertex(Physics::scaleDown(v));
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}
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void ChainShape::setPreviousVertex(float x, float y)
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{
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if (loop)
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{
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throw love::Exception("Physics error: Can't call setPreviousVertex on a loop ChainShape");
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return;
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}
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b2Vec2 v(x, y);
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b2ChainShape *c = (b2ChainShape *)shape;
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c->SetPrevVertex(Physics::scaleDown(v));
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}
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bool ChainShape::hasNextVertex() const
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{
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b2ChainShape *c = (b2ChainShape *)shape;
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return c->m_hasNextVertex;
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}
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bool ChainShape::hasPreviousVertex() const
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{
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b2ChainShape *c = (b2ChainShape *)shape;
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return c->m_hasPrevVertex;
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}
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b2Vec2 ChainShape::getNextVertex() const
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{
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b2ChainShape *c = (b2ChainShape *)shape;
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const b2Vec2 &v = c->m_nextVertex;
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return Physics::scaleUp(v);
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}
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b2Vec2 ChainShape::getPreviousVertex() const
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{
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b2ChainShape *c = (b2ChainShape *)shape;
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const b2Vec2 &v = c->m_prevVertex;
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return Physics::scaleUp(v);
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}
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EdgeShape *ChainShape::getChildEdge(int index) const
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{
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b2ChainShape *c = (b2ChainShape *)shape;
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b2EdgeShape *e = new b2EdgeShape;
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try
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{
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c->GetChildEdge(e, index);
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}
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catch (love::Exception &)
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{
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delete e;
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throw;
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}
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return new EdgeShape(e, true);
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}
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int ChainShape::getVertexCount() const
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{
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b2ChainShape *c = (b2ChainShape *)shape;
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return c->m_count;
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}
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b2Vec2 ChainShape::getPoint(int index) const
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{
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b2ChainShape *c = (b2ChainShape *)shape;
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if (index < 0 || index >= c->m_count)
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throw love::Exception("Physics error: index out of bounds");
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const b2Vec2 &v = c->m_vertices[index];
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return Physics::scaleUp(v);
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}
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const b2Vec2 *ChainShape::getPoints() const
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{
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b2ChainShape *c = (b2ChainShape *)shape;
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return c->m_vertices;
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}
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} // box2d
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} // physics
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} // love
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