168 lines
4.4 KiB
C++
168 lines
4.4 KiB
C++
/* Copyright (C) 2010 Wildfire Games.
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* This file is part of 0 A.D.
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*
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* 0 A.D. is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* 0 A.D. is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "precompiled.h"
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#include "simulation2/system/Component.h"
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#include "ICmpObstruction.h"
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#include "ICmpFootprint.h"
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#include "ICmpObstructionManager.h"
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#include "simulation2/MessageTypes.h"
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/**
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* Obstruction implementation. This keeps the ICmpPathfinder's model of the world updated when the
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* entities move and die, with shapes derived from ICmpFootprint.
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*/
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class CCmpObstruction : public ICmpObstruction
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{
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public:
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static void ClassInit(CComponentManager& componentManager)
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{
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componentManager.SubscribeToMessageType(MT_PositionChanged);
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componentManager.SubscribeToMessageType(MT_Destroy);
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}
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DEFAULT_COMPONENT_ALLOCATOR(Obstruction)
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const CSimContext* m_Context;
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bool m_Active; // whether the obstruction is obstructing or just an inactive placeholder
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ICmpObstructionManager::tag_t m_Tag;
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virtual void Init(const CSimContext& context, const CParamNode& paramNode)
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{
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m_Context = &context;
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if (paramNode.GetChild("Inactive").IsOk())
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m_Active = false;
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else
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m_Active = true;
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m_Tag = 0;
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}
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virtual void Deinit(const CSimContext& UNUSED(context))
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{
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}
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virtual void Serialize(ISerializer& UNUSED(serialize))
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{
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// TODO: Coordinate with CCmpObstructionManager serialisation
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}
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virtual void Deserialize(const CSimContext& context, const CParamNode& paramNode, IDeserializer& UNUSED(deserialize))
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{
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Init(context, paramNode);
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// TODO: Coordinate with CCmpObstructionManager serialisation
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}
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virtual void HandleMessage(const CSimContext& context, const CMessage& msg, bool UNUSED(global))
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{
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switch (msg.GetType())
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{
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case MT_PositionChanged:
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{
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if (!m_Active)
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break;
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const CMessagePositionChanged& data = static_cast<const CMessagePositionChanged&> (msg);
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if (!data.inWorld && !m_Tag)
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break; // nothing needs to change
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CmpPtr<ICmpObstructionManager> cmpObstructionManager(context, SYSTEM_ENTITY);
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if (cmpObstructionManager.null())
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break;
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if (data.inWorld && m_Tag)
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{
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cmpObstructionManager->MoveShape(m_Tag, data.x, data.z, data.a);
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}
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else if (data.inWorld && !m_Tag)
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{
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// Need to create a new pathfinder shape:
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CmpPtr<ICmpFootprint> cmpFootprint(context, GetEntityId());
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if (cmpFootprint.null())
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break;
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ICmpFootprint::EShape shape;
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entity_pos_t size0, size1, height;
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cmpFootprint->GetShape(shape, size0, size1, height);
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if (shape == ICmpFootprint::SQUARE)
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m_Tag = cmpObstructionManager->AddSquare(data.x, data.z, data.a, size0, size1);
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else
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m_Tag = cmpObstructionManager->AddCircle(data.x, data.z, size0);
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}
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else if (!data.inWorld && m_Tag)
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{
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cmpObstructionManager->RemoveShape(m_Tag);
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m_Tag = 0;
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}
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break;
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}
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case MT_Destroy:
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{
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if (m_Tag)
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{
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CmpPtr<ICmpObstructionManager> cmpObstructionManager(context, SYSTEM_ENTITY);
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if (cmpObstructionManager.null())
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break;
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cmpObstructionManager->RemoveShape(m_Tag);
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m_Tag = 0;
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}
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break;
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}
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}
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}
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virtual bool CheckCollisions()
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{
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CmpPtr<ICmpFootprint> cmpFootprint(*m_Context, GetEntityId());
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if (cmpFootprint.null())
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return false;
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CmpPtr<ICmpPosition> cmpPosition(*m_Context, GetEntityId());
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if (cmpPosition.null())
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return false;
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ICmpFootprint::EShape shape;
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entity_pos_t size0, size1, height;
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cmpFootprint->GetShape(shape, size0, size1, height);
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CFixedVector3D pos = cmpPosition->GetPosition();
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CmpPtr<ICmpObstructionManager> cmpObstructionManager(*m_Context, SYSTEM_ENTITY);
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SkipTagObstructionFilter filter(m_Tag); // ignore collisions with self
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if (shape == ICmpFootprint::SQUARE)
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return !cmpObstructionManager->TestSquare(filter, pos.X, pos.Z, cmpPosition->GetRotation().Y, size0, size1);
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else
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return !cmpObstructionManager->TestCircle(filter, pos.X, pos.Z, size0);
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}
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};
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REGISTER_COMPONENT_TYPE(Obstruction)
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