806 lines
25 KiB
C++
806 lines
25 KiB
C++
/* Copyright (C) 2015 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 "ps/CLogger.h"
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#include "simulation2/MessageTypes.h"
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#include "simulation2/components/ICmpObstructionManager.h"
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#include "simulation2/components/ICmpUnitMotion.h"
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#include "simulation2/serialization/SerializeTemplates.h"
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#define MAX(x,y) x>y ? x : y
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#define MIN(x,y) x>y ? y : x
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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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typedef ICmpObstructionManager::tag_t tag_t;
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typedef ICmpObstructionManager::flags_t flags_t;
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// Template state:
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enum {
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STATIC,
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UNIT,
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CLUSTER
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} m_Type;
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entity_pos_t m_Size0; // radius or width
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entity_pos_t m_Size1; // radius or depth
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flags_t m_TemplateFlags;
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entity_pos_t m_Clearance;
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typedef struct {
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entity_pos_t dx, dz;
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entity_angle_t da;
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entity_pos_t size0, size1;
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flags_t flags;
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} Shape;
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std::vector<Shape> m_Shapes;
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// Dynamic state:
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/// Whether the obstruction is actively obstructing or just an inactive placeholder.
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bool m_Active;
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/// Whether the entity associated with this obstruction is currently moving. Only applicable for
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/// UNIT-type obstructions.
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bool m_Moving;
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/// Whether an obstruction's control group should be kept consistent and
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/// used to set control groups for entities that collide with it.
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bool m_ControlPersist;
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/**
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* Primary control group identifier. Indicates to which control group this entity's shape belongs.
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* Typically used in combination with obstruction test filters to have member shapes ignore each
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* other during obstruction tests. Defaults to the entity's ID. Must never be set to INVALID_ENTITY.
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*/
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entity_id_t m_ControlGroup;
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/**
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* Optional secondary control group identifier. Similar to m_ControlGroup; if set to a valid value,
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* then this field identifies an additional, secondary control group to which this entity's shape
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* belongs. Set to INVALID_ENTITY to not assign any secondary group. Defaults to INVALID_ENTITY.
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*
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* These are only necessary in case it is not sufficient for an entity to belong to only one control
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* group. Otherwise, they can be ignored.
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*/
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entity_id_t m_ControlGroup2;
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/// Identifier of this entity's obstruction shape, as registered in the obstruction manager. Contains
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/// structure, but should be treated as opaque here.
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tag_t m_Tag;
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std::vector<tag_t> m_ClusterTags;
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/// Set of flags affecting the behaviour of this entity's obstruction shape.
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flags_t m_Flags;
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static std::string GetSchema()
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{
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return
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"<a:example/>"
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"<a:help>Causes this entity to obstruct the motion of other units.</a:help>"
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"<choice>"
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"<element name='Static'>"
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"<attribute name='width'>"
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"<data type='decimal'>"
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"<param name='minInclusive'>1.5</param>"
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"</data>"
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"</attribute>"
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"<attribute name='depth'>"
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"<data type='decimal'>"
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"<param name='minInclusive'>1.5</param>"
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"</data>"
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"</attribute>"
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"</element>"
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"<element name='Unit'>"
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"<empty/>"
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"</element>"
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"<element name='Obstructions'>"
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"<zeroOrMore>"
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"<element>"
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"<anyName/>"
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"<optional>"
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"<attribute name='x'>"
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"<data type='decimal'/>"
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"</attribute>"
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"</optional>"
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"<optional>"
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"<attribute name='z'>"
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"<data type='decimal'/>"
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"</attribute>"
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"</optional>"
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"<attribute name='width'>"
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"<data type='decimal'>"
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"<param name='minInclusive'>1.5</param>"
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"</data>"
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"</attribute>"
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"<attribute name='depth'>"
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"<data type='decimal'>"
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"<param name='minInclusive'>1.5</param>"
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"</data>"
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"</attribute>"
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"</element>"
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"</zeroOrMore>"
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"</element>"
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"</choice>"
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"<element name='Active' a:help='If false, this entity will be ignored in collision tests by other units but can still perform its own collision tests'>"
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"<data type='boolean'/>"
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"</element>"
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"<element name='BlockMovement' a:help='Whether units should be allowed to walk through this entity'>"
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"<data type='boolean'/>"
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"</element>"
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"<element name='BlockPathfinding' a:help='Whether the long-distance pathfinder should avoid paths through this entity. This should only be set for large stationary obstructions'>"
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"<data type='boolean'/>"
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"</element>"
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"<element name='BlockFoundation' a:help='Whether players should be unable to place building foundations on top of this entity. If true, BlockConstruction should be true too'>"
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"<data type='boolean'/>"
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"</element>"
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"<element name='BlockConstruction' a:help='Whether players should be unable to begin constructing buildings placed on top of this entity'>"
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"<data type='boolean'/>"
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"</element>"
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"<element name='DisableBlockMovement' a:help='If true, BlockMovement will be overridden and treated as false. (This is a special case to handle foundations)'>"
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"<data type='boolean'/>"
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"</element>"
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"<element name='DisableBlockPathfinding' a:help='If true, BlockPathfinding will be overridden and treated as false. (This is a special case to handle foundations)'>"
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"<data type='boolean'/>"
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"</element>"
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"<optional>"
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"<element name='ControlPersist' a:help='If present, the control group of this entity will be given to entities that are colliding with it.'>"
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"<empty/>"
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"</element>"
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"</optional>";
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}
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virtual void Init(const CParamNode& paramNode)
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{
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// The minimum obstruction size is the navcell size * sqrt(2)
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// This is enforced in the schema as a minimum of 1.5
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fixed minObstruction = (Pathfinding::NAVCELL_SIZE.Square() * 2).Sqrt();
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m_TemplateFlags = 0;
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if (paramNode.GetChild("BlockMovement").ToBool())
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m_TemplateFlags |= ICmpObstructionManager::FLAG_BLOCK_MOVEMENT;
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if (paramNode.GetChild("BlockPathfinding").ToBool())
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m_TemplateFlags |= ICmpObstructionManager::FLAG_BLOCK_PATHFINDING;
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if (paramNode.GetChild("BlockFoundation").ToBool())
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m_TemplateFlags |= ICmpObstructionManager::FLAG_BLOCK_FOUNDATION;
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if (paramNode.GetChild("BlockConstruction").ToBool())
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m_TemplateFlags |= ICmpObstructionManager::FLAG_BLOCK_CONSTRUCTION;
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m_Flags = m_TemplateFlags;
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if (paramNode.GetChild("DisableBlockMovement").ToBool())
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m_Flags &= (flags_t)(~ICmpObstructionManager::FLAG_BLOCK_MOVEMENT);
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if (paramNode.GetChild("DisableBlockPathfinding").ToBool())
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m_Flags &= (flags_t)(~ICmpObstructionManager::FLAG_BLOCK_PATHFINDING);
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if (paramNode.GetChild("Unit").IsOk())
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{
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m_Type = UNIT;
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CmpPtr<ICmpUnitMotion> cmpUnitMotion(GetEntityHandle());
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if (cmpUnitMotion)
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m_Clearance = cmpUnitMotion->GetUnitClearance();
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}
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else if (paramNode.GetChild("Static").IsOk())
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{
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m_Type = STATIC;
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m_Size0 = paramNode.GetChild("Static").GetChild("@width").ToFixed();
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m_Size1 = paramNode.GetChild("Static").GetChild("@depth").ToFixed();
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ENSURE(m_Size0 > minObstruction);
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ENSURE(m_Size1 > minObstruction);
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}
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else
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{
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m_Type = CLUSTER;
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CFixedVector2D max = CFixedVector2D(fixed::FromInt(0), fixed::FromInt(0));
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CFixedVector2D min = CFixedVector2D(fixed::FromInt(0), fixed::FromInt(0));
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const CParamNode::ChildrenMap& clusterMap = paramNode.GetChild("Obstructions").GetChildren();
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for(CParamNode::ChildrenMap::const_iterator it = clusterMap.begin(); it != clusterMap.end(); ++it)
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{
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Shape b;
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b.size0 = it->second.GetChild("@width").ToFixed();
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b.size1 = it->second.GetChild("@depth").ToFixed();
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ENSURE(b.size0 > minObstruction);
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ENSURE(b.size1 > minObstruction);
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b.dx = it->second.GetChild("@x").ToFixed();
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b.dz = it->second.GetChild("@z").ToFixed();
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b.da = entity_angle_t::FromInt(0);
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b.flags = m_Flags;
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m_Shapes.push_back(b);
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max.X = MAX(max.X, b.dx + b.size0/2);
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max.Y = MAX(max.Y, b.dz + b.size1/2);
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min.X = MIN(min.X, b.dx - b.size0/2);
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min.Y = MIN(min.Y, b.dz - b.size1/2);
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}
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m_Size0 = fixed::FromInt(2).Multiply(MAX(max.X, -min.X));
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m_Size1 = fixed::FromInt(2).Multiply(MAX(max.Y, -min.Y));
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}
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m_Active = paramNode.GetChild("Active").ToBool();
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m_ControlPersist = paramNode.GetChild("ControlPersist").IsOk();
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m_Tag = tag_t();
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if (m_Type == CLUSTER)
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m_ClusterTags.clear();
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m_Moving = false;
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m_ControlGroup = GetEntityId();
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m_ControlGroup2 = INVALID_ENTITY;
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}
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virtual void Deinit()
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{
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}
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struct SerializeTag
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{
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template<typename S>
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void operator()(S& serialize, const char* UNUSED(name), tag_t& value)
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{
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serialize.NumberU32_Unbounded("tag", value.n);
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}
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};
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template<typename S>
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void SerializeCommon(S& serialize)
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{
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serialize.Bool("active", m_Active);
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serialize.Bool("moving", m_Moving);
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serialize.NumberU32_Unbounded("control group", m_ControlGroup);
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serialize.NumberU32_Unbounded("control group 2", m_ControlGroup2);
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serialize.NumberU32_Unbounded("tag", m_Tag.n);
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serialize.NumberU8_Unbounded("flags", m_Flags);
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if (m_Type == CLUSTER)
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SerializeVector<SerializeTag>()(serialize, "cluster tags", m_ClusterTags);
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if (m_Type == UNIT)
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serialize.NumberFixed_Unbounded("clearance", m_Clearance);
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}
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virtual void Serialize(ISerializer& serialize)
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{
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SerializeCommon(serialize);
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}
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virtual void Deserialize(const CParamNode& paramNode, IDeserializer& deserialize)
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{
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Init(paramNode);
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SerializeCommon(deserialize);
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}
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virtual void HandleMessage(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.valid())
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break; // nothing needs to change
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CmpPtr<ICmpObstructionManager> cmpObstructionManager(GetSystemEntity());
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if (!cmpObstructionManager)
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break; // error
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if (data.inWorld && m_Tag.valid())
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{
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cmpObstructionManager->MoveShape(m_Tag, data.x, data.z, data.a);
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if (m_Type == CLUSTER)
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{
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for (size_t i = 0; i < m_Shapes.size(); ++i)
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{
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Shape& b = m_Shapes[i];
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fixed s, c;
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sincos_approx(data.a, s, c);
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cmpObstructionManager->MoveShape(m_ClusterTags[i], data.x + b.dx.Multiply(c) + b.dz.Multiply(s), data.z + b.dz.Multiply(c) - b.dx.Multiply(s), data.a + b.da);
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}
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}
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}
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else if (data.inWorld && !m_Tag.valid())
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{
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// Need to create a new pathfinder shape:
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if (m_Type == STATIC)
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m_Tag = cmpObstructionManager->AddStaticShape(GetEntityId(),
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data.x, data.z, data.a, m_Size0, m_Size1, m_Flags, m_ControlGroup, m_ControlGroup2);
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else if (m_Type == UNIT)
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m_Tag = cmpObstructionManager->AddUnitShape(GetEntityId(),
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data.x, data.z, m_Clearance, (flags_t)(m_Flags | (m_Moving ? ICmpObstructionManager::FLAG_MOVING : 0)), m_ControlGroup);
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else
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AddClusterShapes(data.x, data.x, data.a);
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}
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else if (!data.inWorld && m_Tag.valid())
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{
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cmpObstructionManager->RemoveShape(m_Tag);
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m_Tag = tag_t();
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if(m_Type == CLUSTER)
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RemoveClusterShapes();
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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.valid())
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{
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CmpPtr<ICmpObstructionManager> cmpObstructionManager(GetSystemEntity());
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if (!cmpObstructionManager)
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break; // error
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cmpObstructionManager->RemoveShape(m_Tag);
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m_Tag = tag_t();
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if(m_Type == CLUSTER)
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RemoveClusterShapes();
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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 void SetActive(bool active)
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{
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if (active && !m_Active)
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{
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m_Active = true;
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// Construct the obstruction shape
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CmpPtr<ICmpObstructionManager> cmpObstructionManager(GetSystemEntity());
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if (!cmpObstructionManager)
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return; // error
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CmpPtr<ICmpPosition> cmpPosition(GetEntityHandle());
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if (!cmpPosition)
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return; // error
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if (!cmpPosition->IsInWorld())
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return; // don't need an obstruction
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// TODO: code duplication from message handlers
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CFixedVector2D pos = cmpPosition->GetPosition2D();
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if (m_Type == STATIC)
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m_Tag = cmpObstructionManager->AddStaticShape(GetEntityId(),
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pos.X, pos.Y, cmpPosition->GetRotation().Y, m_Size0, m_Size1, m_Flags, m_ControlGroup, m_ControlGroup2);
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else if (m_Type == UNIT)
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m_Tag = cmpObstructionManager->AddUnitShape(GetEntityId(),
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pos.X, pos.Y, m_Clearance, (flags_t)(m_Flags | (m_Moving ? ICmpObstructionManager::FLAG_MOVING : 0)), m_ControlGroup);
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else
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AddClusterShapes(pos.X, pos.Y, cmpPosition->GetRotation().Y);
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}
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else if (!active && m_Active)
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{
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m_Active = false;
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// Delete the obstruction shape
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// TODO: code duplication from message handlers
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if (m_Tag.valid())
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{
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CmpPtr<ICmpObstructionManager> cmpObstructionManager(GetSystemEntity());
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if (!cmpObstructionManager)
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return; // error
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cmpObstructionManager->RemoveShape(m_Tag);
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m_Tag = tag_t();
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if (m_Type == CLUSTER)
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RemoveClusterShapes();
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}
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}
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// else we didn't change the active status
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}
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virtual void SetDisableBlockMovementPathfinding(bool movementDisabled, bool pathfindingDisabled, int32_t shape)
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{
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flags_t *flags = NULL;
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if (shape == -1)
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flags = &m_Flags;
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else if (m_Type == CLUSTER && shape < (int32_t)m_Shapes.size())
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flags = &m_Shapes[shape].flags;
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else
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return; // error
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// Remove the blocking / pathfinding flags or
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// Add the blocking / pathfinding flags if the template had enabled them
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if (movementDisabled)
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*flags &= (flags_t)(~ICmpObstructionManager::FLAG_BLOCK_MOVEMENT);
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else
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*flags |= (flags_t)(m_TemplateFlags & ICmpObstructionManager::FLAG_BLOCK_MOVEMENT);
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if (pathfindingDisabled)
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*flags &= (flags_t)(~ICmpObstructionManager::FLAG_BLOCK_PATHFINDING);
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else
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*flags |= (flags_t)(m_TemplateFlags & ICmpObstructionManager::FLAG_BLOCK_PATHFINDING);
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// Reset the shape with the new flags (kind of inefficiently - we
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// should have a ICmpObstructionManager::SetFlags function or something)
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if (m_Active)
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{
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SetActive(false);
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SetActive(true);
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}
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}
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virtual bool GetBlockMovementFlag()
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{
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return (m_TemplateFlags & ICmpObstructionManager::FLAG_BLOCK_MOVEMENT) != 0;
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}
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virtual ICmpObstructionManager::tag_t GetObstruction()
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{
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return m_Tag;
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}
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virtual bool GetPreviousObstructionSquare(ICmpObstructionManager::ObstructionSquare& out)
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{
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return GetObstructionSquare(out, true);
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}
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virtual bool GetObstructionSquare(ICmpObstructionManager::ObstructionSquare& out)
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{
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return GetObstructionSquare(out, false);
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}
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virtual bool GetObstructionSquare(ICmpObstructionManager::ObstructionSquare& out, bool previousPosition)
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{
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CmpPtr<ICmpPosition> cmpPosition(GetEntityHandle());
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if (!cmpPosition)
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return false; // error
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CmpPtr<ICmpObstructionManager> cmpObstructionManager(GetSystemEntity());
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if (!cmpObstructionManager)
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return false; // error
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if (!cmpPosition->IsInWorld())
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return false; // no obstruction square
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CFixedVector2D pos;
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if (previousPosition)
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pos = cmpPosition->GetPreviousPosition2D();
|
|
else
|
|
pos = cmpPosition->GetPosition2D();
|
|
if (m_Type == UNIT)
|
|
out = cmpObstructionManager->GetUnitShapeObstruction(pos.X, pos.Y, m_Clearance);
|
|
else
|
|
out = cmpObstructionManager->GetStaticShapeObstruction(pos.X, pos.Y, cmpPosition->GetRotation().Y, m_Size0, m_Size1);
|
|
return true;
|
|
}
|
|
|
|
virtual entity_pos_t GetUnitRadius()
|
|
{
|
|
if (m_Type == UNIT)
|
|
return m_Clearance;
|
|
else
|
|
return entity_pos_t::Zero();
|
|
}
|
|
|
|
virtual entity_pos_t GetSize()
|
|
{
|
|
if (m_Type == UNIT)
|
|
return m_Clearance;
|
|
else
|
|
return CFixedVector2D(m_Size0 / 2, m_Size1 / 2).Length();
|
|
}
|
|
|
|
virtual void SetUnitClearance(const entity_pos_t& clearance)
|
|
{
|
|
if (m_Type == UNIT)
|
|
m_Clearance = clearance;
|
|
}
|
|
|
|
virtual bool IsControlPersistent()
|
|
{
|
|
return m_ControlPersist;
|
|
}
|
|
|
|
virtual EFoundationCheck CheckFoundation(std::string className)
|
|
{
|
|
return CheckFoundation(className, false);
|
|
}
|
|
|
|
virtual EFoundationCheck CheckFoundation(std::string className, bool onlyCenterPoint)
|
|
{
|
|
CmpPtr<ICmpPosition> cmpPosition(GetEntityHandle());
|
|
if (!cmpPosition)
|
|
return FOUNDATION_CHECK_FAIL_ERROR; // error
|
|
|
|
if (!cmpPosition->IsInWorld())
|
|
return FOUNDATION_CHECK_FAIL_NO_OBSTRUCTION; // no obstruction
|
|
|
|
CFixedVector2D pos = cmpPosition->GetPosition2D();
|
|
|
|
CmpPtr<ICmpPathfinder> cmpPathfinder(GetSystemEntity());
|
|
if (!cmpPathfinder)
|
|
return FOUNDATION_CHECK_FAIL_ERROR; // error
|
|
|
|
// required precondition to use SkipControlGroupsRequireFlagObstructionFilter
|
|
if (m_ControlGroup == INVALID_ENTITY)
|
|
{
|
|
LOGERROR("[CmpObstruction] Cannot test for foundation obstructions; primary control group must be valid");
|
|
return FOUNDATION_CHECK_FAIL_ERROR;
|
|
}
|
|
|
|
// Get passability class
|
|
pass_class_t passClass = cmpPathfinder->GetPassabilityClass(className);
|
|
|
|
// Ignore collisions within the same control group, or with other non-foundation-blocking shapes.
|
|
// Note that, since the control group for each entity defaults to the entity's ID, this is typically
|
|
// equivalent to only ignoring the entity's own shape and other non-foundation-blocking shapes.
|
|
SkipControlGroupsRequireFlagObstructionFilter filter(m_ControlGroup, m_ControlGroup2,
|
|
ICmpObstructionManager::FLAG_BLOCK_FOUNDATION);
|
|
|
|
if (m_Type == UNIT)
|
|
return cmpPathfinder->CheckUnitPlacement(filter, pos.X, pos.Y, m_Clearance, passClass, onlyCenterPoint);
|
|
else
|
|
return cmpPathfinder->CheckBuildingPlacement(filter, pos.X, pos.Y, cmpPosition->GetRotation().Y, m_Size0, m_Size1, GetEntityId(), passClass, onlyCenterPoint);
|
|
}
|
|
|
|
virtual bool CheckDuplicateFoundation()
|
|
{
|
|
CmpPtr<ICmpPosition> cmpPosition(GetEntityHandle());
|
|
if (!cmpPosition)
|
|
return false; // error
|
|
|
|
if (!cmpPosition->IsInWorld())
|
|
return false; // no obstruction
|
|
|
|
CFixedVector2D pos = cmpPosition->GetPosition2D();
|
|
|
|
CmpPtr<ICmpObstructionManager> cmpObstructionManager(GetSystemEntity());
|
|
if (!cmpObstructionManager)
|
|
return false; // error
|
|
|
|
// required precondition to use SkipControlGroupsRequireFlagObstructionFilter
|
|
if (m_ControlGroup == INVALID_ENTITY)
|
|
{
|
|
LOGERROR("[CmpObstruction] Cannot test for foundation obstructions; primary control group must be valid");
|
|
return false;
|
|
}
|
|
|
|
// Ignore collisions with entities unless they block foundations and match both control groups.
|
|
SkipTagRequireControlGroupsAndFlagObstructionFilter filter(m_Tag, m_ControlGroup, m_ControlGroup2,
|
|
ICmpObstructionManager::FLAG_BLOCK_FOUNDATION);
|
|
|
|
if (m_Type == UNIT)
|
|
return !cmpObstructionManager->TestUnitShape(filter, pos.X, pos.Y, m_Clearance, NULL);
|
|
else
|
|
return !cmpObstructionManager->TestStaticShape(filter, pos.X, pos.Y, cmpPosition->GetRotation().Y, m_Size0, m_Size1, NULL );
|
|
}
|
|
|
|
virtual std::vector<entity_id_t> GetUnitCollisions()
|
|
{
|
|
std::vector<entity_id_t> ret;
|
|
|
|
CmpPtr<ICmpObstructionManager> cmpObstructionManager(GetSystemEntity());
|
|
if (!cmpObstructionManager)
|
|
return ret; // error
|
|
|
|
// There are four 'block' flags: construction, foundation, movement,
|
|
// and pathfinding. Structures have all of these flags, while units
|
|
// block only movement and construction.
|
|
flags_t flags = ICmpObstructionManager::FLAG_BLOCK_CONSTRUCTION;
|
|
|
|
// Ignore collisions within the same control group, or with other shapes that don't match the filter.
|
|
// Note that, since the control group for each entity defaults to the entity's ID, this is typically
|
|
// equivalent to only ignoring the entity's own shape and other shapes that don't match the filter.
|
|
SkipControlGroupsRequireFlagObstructionFilter filter(false, m_ControlGroup, m_ControlGroup2, flags);
|
|
|
|
ICmpObstructionManager::ObstructionSquare square;
|
|
if (!GetObstructionSquare(square))
|
|
return ret; // error
|
|
|
|
cmpObstructionManager->GetUnitsOnObstruction(square, ret, filter);
|
|
|
|
return ret;
|
|
}
|
|
|
|
virtual void SetMovingFlag(bool enabled)
|
|
{
|
|
m_Moving = enabled;
|
|
|
|
if (m_Tag.valid() && m_Type == UNIT)
|
|
{
|
|
CmpPtr<ICmpObstructionManager> cmpObstructionManager(GetSystemEntity());
|
|
if (cmpObstructionManager)
|
|
cmpObstructionManager->SetUnitMovingFlag(m_Tag, m_Moving);
|
|
}
|
|
}
|
|
|
|
virtual void SetControlGroup(entity_id_t group)
|
|
{
|
|
m_ControlGroup = group;
|
|
UpdateControlGroups();
|
|
}
|
|
|
|
virtual void SetControlGroup2(entity_id_t group2)
|
|
{
|
|
m_ControlGroup2 = group2;
|
|
UpdateControlGroups();
|
|
}
|
|
|
|
virtual entity_id_t GetControlGroup()
|
|
{
|
|
return m_ControlGroup;
|
|
}
|
|
|
|
virtual entity_id_t GetControlGroup2()
|
|
{
|
|
return m_ControlGroup2;
|
|
}
|
|
|
|
void UpdateControlGroups()
|
|
{
|
|
if (m_Tag.valid())
|
|
{
|
|
CmpPtr<ICmpObstructionManager> cmpObstructionManager(GetSystemEntity());
|
|
if (cmpObstructionManager)
|
|
{
|
|
if (m_Type == UNIT)
|
|
{
|
|
cmpObstructionManager->SetUnitControlGroup(m_Tag, m_ControlGroup);
|
|
}
|
|
else if (m_Type == STATIC)
|
|
{
|
|
cmpObstructionManager->SetStaticControlGroup(m_Tag, m_ControlGroup, m_ControlGroup2);
|
|
}
|
|
else
|
|
{
|
|
cmpObstructionManager->SetStaticControlGroup(m_Tag, m_ControlGroup, m_ControlGroup2);
|
|
for (size_t i = 0; i < m_ClusterTags.size(); ++i)
|
|
{
|
|
cmpObstructionManager->SetStaticControlGroup(m_ClusterTags[i], m_ControlGroup, m_ControlGroup2);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void ResolveFoundationCollisions()
|
|
{
|
|
if (m_Type == UNIT)
|
|
return;
|
|
|
|
CmpPtr<ICmpObstructionManager> cmpObstructionManager(GetSystemEntity());
|
|
if (!cmpObstructionManager)
|
|
return;
|
|
|
|
CmpPtr<ICmpPosition> cmpPosition(GetEntityHandle());
|
|
if (!cmpPosition)
|
|
return; // error
|
|
|
|
if (!cmpPosition->IsInWorld())
|
|
return; // no obstruction
|
|
|
|
CFixedVector2D pos = cmpPosition->GetPosition2D();
|
|
|
|
// Ignore collisions within the same control group, or with other non-foundation-blocking shapes.
|
|
// Note that, since the control group for each entity defaults to the entity's ID, this is typically
|
|
// equivalent to only ignoring the entity's own shape and other non-foundation-blocking shapes.
|
|
SkipControlGroupsRequireFlagObstructionFilter filter(m_ControlGroup, m_ControlGroup2,
|
|
ICmpObstructionManager::FLAG_BLOCK_FOUNDATION);
|
|
|
|
std::vector<entity_id_t> collisions;
|
|
if (cmpObstructionManager->TestStaticShape(filter, pos.X, pos.Y, cmpPosition->GetRotation().Y, m_Size0, m_Size1, &collisions))
|
|
{
|
|
std::vector<entity_id_t> persistentEnts, normalEnts;
|
|
|
|
if (m_ControlPersist)
|
|
persistentEnts.push_back(m_ControlGroup);
|
|
else
|
|
normalEnts.push_back(GetEntityId());
|
|
|
|
for (std::vector<entity_id_t>::iterator it = collisions.begin(); it != collisions.end(); ++it)
|
|
{
|
|
entity_id_t ent = *it;
|
|
if (ent == INVALID_ENTITY)
|
|
continue;
|
|
|
|
CmpPtr<ICmpObstruction> cmpObstruction(GetSimContext(), ent);
|
|
if (!cmpObstruction->IsControlPersistent())
|
|
normalEnts.push_back(ent);
|
|
else
|
|
persistentEnts.push_back(cmpObstruction->GetControlGroup());
|
|
}
|
|
|
|
// The collision can't be resolved without usable persistent control groups.
|
|
if (persistentEnts.empty())
|
|
return;
|
|
|
|
// Attempt to replace colliding entities' control groups with a persistent one.
|
|
for (std::vector<entity_id_t>::iterator it = normalEnts.begin(); it != normalEnts.end(); ++it)
|
|
{
|
|
entity_id_t ent = *it;
|
|
|
|
CmpPtr<ICmpObstruction> cmpObstruction(GetSimContext(), ent);
|
|
for (std::vector<entity_id_t>::iterator it = persistentEnts.begin(); it != persistentEnts.end(); ++it)
|
|
{
|
|
entity_id_t persistent = *it;
|
|
entity_id_t group = cmpObstruction->GetControlGroup();
|
|
|
|
// Only clobber 'default' control groups.
|
|
if (group == ent)
|
|
cmpObstruction->SetControlGroup(persistent);
|
|
else if (cmpObstruction->GetControlGroup2() == INVALID_ENTITY && group != persistent)
|
|
cmpObstruction->SetControlGroup2(persistent);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
protected:
|
|
|
|
inline void AddClusterShapes(entity_pos_t x, entity_pos_t z, entity_angle_t a)
|
|
{
|
|
CmpPtr<ICmpObstructionManager> cmpObstructionManager(GetSystemEntity());
|
|
if (!cmpObstructionManager)
|
|
return; // error
|
|
|
|
flags_t flags = m_Flags;
|
|
// Disable block movement and block pathfinding for the obstruction shape
|
|
flags &= (flags_t)(~ICmpObstructionManager::FLAG_BLOCK_MOVEMENT);
|
|
flags &= (flags_t)(~ICmpObstructionManager::FLAG_BLOCK_PATHFINDING);
|
|
|
|
m_Tag = cmpObstructionManager->AddStaticShape(GetEntityId(),
|
|
x, z, a, m_Size0, m_Size1, flags, m_ControlGroup, m_ControlGroup2);
|
|
|
|
fixed s, c;
|
|
sincos_approx(a, s, c);
|
|
|
|
for (size_t i = 0; i < m_Shapes.size(); ++i)
|
|
{
|
|
Shape& b = m_Shapes[i];
|
|
tag_t tag = cmpObstructionManager->AddStaticShape(GetEntityId(),
|
|
x + b.dx.Multiply(c) + b.dz.Multiply(s), z + b.dz.Multiply(c) - b.dx.Multiply(s), a + b.da, b.size0, b.size1, b.flags, m_ControlGroup, m_ControlGroup2);
|
|
m_ClusterTags.push_back(tag);
|
|
}
|
|
}
|
|
|
|
inline void RemoveClusterShapes()
|
|
{
|
|
CmpPtr<ICmpObstructionManager> cmpObstructionManager(GetSystemEntity());
|
|
if (!cmpObstructionManager)
|
|
return; // error
|
|
|
|
for (size_t i = 0; i < m_ClusterTags.size(); ++i)
|
|
{
|
|
if (m_ClusterTags[i].valid())
|
|
{
|
|
cmpObstructionManager->RemoveShape(m_ClusterTags[i]);
|
|
}
|
|
}
|
|
m_ClusterTags.clear();
|
|
}
|
|
|
|
};
|
|
|
|
REGISTER_COMPONENT_TYPE(Obstruction)
|