wraitii
913545aa41
Also make sure we don't include Geometry.h where it's not necessary. This was SVN commit r17238.
282 lines
8.9 KiB
C++
282 lines
8.9 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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#ifndef INCLUDED_CCMPPATHFINDER_COMMON
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#define INCLUDED_CCMPPATHFINDER_COMMON
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/**
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* @file
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* Declares CCmpPathfinder. Its implementation is mainly done in CCmpPathfinder.cpp,
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* but the short-range (vertex) pathfinding is done in CCmpPathfinder_Vertex.cpp.
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* This file provides common code needed for both files.
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*
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* The long-range pathfinding is done by a LongPathfinder object.
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*/
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#include "simulation2/system/Component.h"
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#include "ICmpPathfinder.h"
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#include "graphics/Overlay.h"
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#include "graphics/Terrain.h"
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#include "maths/MathUtil.h"
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#include "ps/CLogger.h"
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#include "simulation2/components/ICmpObstructionManager.h"
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#include "simulation2/helpers/LongPathfinder.h"
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class SceneCollector;
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class AtlasOverlay;
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#ifdef NDEBUG
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#define PATHFIND_DEBUG 0
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#else
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#define PATHFIND_DEBUG 1
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#endif
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struct AsyncLongPathRequest
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{
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u32 ticket;
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entity_pos_t x0;
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entity_pos_t z0;
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PathGoal goal;
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pass_class_t passClass;
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entity_id_t notify;
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};
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struct AsyncShortPathRequest
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{
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u32 ticket;
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entity_pos_t x0;
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entity_pos_t z0;
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entity_pos_t clearance;
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entity_pos_t range;
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PathGoal goal;
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pass_class_t passClass;
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bool avoidMovingUnits;
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entity_id_t group;
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entity_id_t notify;
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};
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/**
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* Implementation of ICmpPathfinder
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*/
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class CCmpPathfinder : public ICmpPathfinder
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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_Update);
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componentManager.SubscribeToMessageType(MT_RenderSubmit); // for debug overlays
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componentManager.SubscribeToMessageType(MT_TerrainChanged);
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componentManager.SubscribeToMessageType(MT_WaterChanged);
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componentManager.SubscribeToMessageType(MT_ObstructionMapShapeChanged);
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componentManager.SubscribeToMessageType(MT_TurnStart);
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}
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DEFAULT_COMPONENT_ALLOCATOR(Pathfinder)
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// Template state:
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std::map<std::string, pass_class_t> m_PassClassMasks;
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std::vector<PathfinderPassability> m_PassClasses;
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// Dynamic state:
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std::vector<AsyncLongPathRequest> m_AsyncLongPathRequests;
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std::vector<AsyncShortPathRequest> m_AsyncShortPathRequests;
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u32 m_NextAsyncTicket; // unique IDs for asynchronous path requests
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u16 m_SameTurnMovesCount; // current number of same turn moves we have processed this turn
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// Lazily-constructed dynamic state (not serialized):
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u16 m_MapSize; // tiles per side
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Grid<NavcellData>* m_Grid; // terrain/passability information
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Grid<NavcellData>* m_TerrainOnlyGrid; // same as m_Grid, but only with terrain, to avoid some recomputations
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// Update data, used for clever updates and then stored for the AI manager
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GridUpdateInformation m_ObstructionsDirty;
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bool m_TerrainDirty;
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// When other components request the passability grid and trigger an update,
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// the following regular update should not clean the dirtiness state.
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bool m_PreserveUpdateInformations;
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// Interface to the long-range pathfinder.
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LongPathfinder m_LongPathfinder;
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// For responsiveness we will process some moves in the same turn they were generated in
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u16 m_MaxSameTurnMoves; // max number of moves that can be created and processed in the same turn
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bool m_DebugOverlay;
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std::vector<SOverlayLine> m_DebugOverlayShortPathLines;
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AtlasOverlay* m_AtlasOverlay;
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static std::string GetSchema()
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{
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return "<a:component type='system'/><empty/>";
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}
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virtual void Init(const CParamNode& paramNode);
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virtual void Deinit();
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virtual void Serialize(ISerializer& serialize);
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virtual void Deserialize(const CParamNode& paramNode, IDeserializer& deserialize);
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virtual void HandleMessage(const CMessage& msg, bool global);
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virtual pass_class_t GetPassabilityClass(const std::string& name);
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virtual void GetPassabilityClasses(std::map<std::string, pass_class_t>& passClasses) const;
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virtual void GetPassabilityClasses(
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std::map<std::string, pass_class_t>& nonPathfindingPassClasses,
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std::map<std::string, pass_class_t>& pathfindingPassClasses) const;
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const PathfinderPassability* GetPassabilityFromMask(pass_class_t passClass) const;
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virtual entity_pos_t GetClearance(pass_class_t passClass) const
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{
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const PathfinderPassability* passability = GetPassabilityFromMask(passClass);
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if (!passability)
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return fixed::Zero();
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return passability->m_Clearance;
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}
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virtual entity_pos_t GetMaximumClearance() const
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{
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entity_pos_t max = fixed::Zero();
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for (const PathfinderPassability& passability : m_PassClasses)
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if (passability.m_Clearance > max)
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max = passability.m_Clearance;
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return max;
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}
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virtual const Grid<NavcellData>& GetPassabilityGrid();
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virtual const GridUpdateInformation& GetDirtinessData() const;
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virtual Grid<u16> ComputeShoreGrid(bool expandOnWater = false);
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virtual void ComputePath(entity_pos_t x0, entity_pos_t z0, const PathGoal& goal, pass_class_t passClass, WaypointPath& ret)
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{
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m_LongPathfinder.ComputePath(x0, z0, goal, passClass, ret);
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}
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virtual u32 ComputePathAsync(entity_pos_t x0, entity_pos_t z0, const PathGoal& goal, pass_class_t passClass, entity_id_t notify);
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virtual void ComputeShortPath(const IObstructionTestFilter& filter, entity_pos_t x0, entity_pos_t z0, entity_pos_t clearance, entity_pos_t range, const PathGoal& goal, pass_class_t passClass, WaypointPath& ret);
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virtual u32 ComputeShortPathAsync(entity_pos_t x0, entity_pos_t z0, entity_pos_t clearance, entity_pos_t range, const PathGoal& goal, pass_class_t passClass, bool avoidMovingUnits, entity_id_t controller, entity_id_t notify);
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virtual void SetDebugPath(entity_pos_t x0, entity_pos_t z0, const PathGoal& goal, pass_class_t passClass)
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{
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m_LongPathfinder.SetDebugPath(x0, z0, goal, passClass);
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}
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virtual void SetDebugOverlay(bool enabled)
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{
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m_DebugOverlay = enabled;
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m_LongPathfinder.SetDebugOverlay(enabled);
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}
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virtual void SetHierDebugOverlay(bool enabled)
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{
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m_LongPathfinder.SetHierDebugOverlay(enabled, &GetSimContext());
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}
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virtual void GetDebugData(u32& steps, double& time, Grid<u8>& grid)
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{
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m_LongPathfinder.GetDebugData(steps, time, grid);
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}
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virtual void SetAtlasOverlay(bool enable, pass_class_t passClass = 0);
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virtual bool CheckMovement(const IObstructionTestFilter& filter, entity_pos_t x0, entity_pos_t z0, entity_pos_t x1, entity_pos_t z1, entity_pos_t r, pass_class_t passClass);
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virtual ICmpObstruction::EFoundationCheck CheckUnitPlacement(const IObstructionTestFilter& filter, entity_pos_t x, entity_pos_t z, entity_pos_t r, pass_class_t passClass, bool onlyCenterPoint);
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virtual ICmpObstruction::EFoundationCheck CheckBuildingPlacement(const IObstructionTestFilter& filter, entity_pos_t x, entity_pos_t z, entity_pos_t a, entity_pos_t w, entity_pos_t h, entity_id_t id, pass_class_t passClass);
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virtual ICmpObstruction::EFoundationCheck CheckBuildingPlacement(const IObstructionTestFilter& filter, entity_pos_t x, entity_pos_t z, entity_pos_t a, entity_pos_t w, entity_pos_t h, entity_id_t id, pass_class_t passClass, bool onlyCenterPoint);
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virtual void FinishAsyncRequests();
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void ProcessLongRequests(const std::vector<AsyncLongPathRequest>& longRequests);
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void ProcessShortRequests(const std::vector<AsyncShortPathRequest>& shortRequests);
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virtual void ProcessSameTurnMoves();
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/**
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* Regenerates the grid based on the current obstruction list, if necessary
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*/
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virtual void UpdateGrid();
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/**
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* Updates the terrain-only grid without updating the dirtiness informations.
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* Useful for fast passability updates in Atlas.
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*/
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void MinimalTerrainUpdate();
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/**
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* Regenerates the terrain-only grid.
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* Atlas doesn't need to have passability cells expanded.
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*/
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void TerrainUpdateHelper(bool expandPassability = true);
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void RenderSubmit(SceneCollector& collector);
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};
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class AtlasOverlay : public TerrainTextureOverlay
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{
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public:
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const CCmpPathfinder* m_Pathfinder;
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pass_class_t m_PassClass;
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AtlasOverlay(const CCmpPathfinder* pathfinder, pass_class_t passClass) :
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TerrainTextureOverlay(Pathfinding::NAVCELLS_PER_TILE), m_Pathfinder(pathfinder), m_PassClass(passClass)
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{
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}
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virtual void BuildTextureRGBA(u8* data, size_t w, size_t h)
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{
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// Render navcell passability, based on the terrain-only grid
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u8* p = data;
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for (size_t j = 0; j < h; ++j)
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{
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for (size_t i = 0; i < w; ++i)
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{
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SColor4ub color(0, 0, 0, 0);
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if (!IS_PASSABLE(m_Pathfinder->m_TerrainOnlyGrid->get((int)i, (int)j), m_PassClass))
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color = SColor4ub(255, 0, 0, 127);
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*p++ = color.R;
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*p++ = color.G;
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*p++ = color.B;
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*p++ = color.A;
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}
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}
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}
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};
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#endif // INCLUDED_CCMPPATHFINDER_COMMON
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