mirror of https://github.com/axmolengine/axmol.git
239 lines
7.0 KiB
C++
239 lines
7.0 KiB
C++
/****************************************************************************
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Copyright (c) 2015-2016 Chukong Technologies Inc.
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Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.
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Copyright (c) 2019-present Axmol Engine contributors (see AUTHORS.md).
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https://axmolengine.github.io/
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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#ifndef __CCNAV_MESH_AGENT_H__
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#define __CCNAV_MESH_AGENT_H__
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#include "base/Config.h"
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#if defined(AX_ENABLE_NAVMESH)
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# include "2d/Component.h"
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# include "base/Object.h"
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# include "math/Vec3.h"
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# include "recast/DetourCrowd.h"
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class dtNavMeshQuery;
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NS_AX_BEGIN
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/**
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* @addtogroup 3d
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* @{
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*/
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struct AX_DLL NavMeshAgentParam
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{
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NavMeshAgentParam();
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float radius; ///< Agent radius. [Limit: >= 0]
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float height; ///< Agent height. [Limit: > 0]
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float maxAcceleration; ///< Maximum allowed acceleration. [Limit: >= 0]
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float maxSpeed; ///< Maximum allowed speed. [Limit: >= 0]
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/// Defines how close a collision element must be before it is considered for steering behaviors. [Limits: > 0]
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float collisionQueryRange;
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float pathOptimizationRange; ///< The path visibility optimization range. [Limit: > 0]
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/// How aggressive the agent manager should be at avoiding collisions with this agent. [Limit: >= 0]
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float separationWeight;
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/// Flags that impact steering behavior. (See: #UpdateFlags)
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unsigned char updateFlags;
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/// The index of the avoidance configuration to use for the agent.
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/// [Limits: 0 <= value <= #DT_CROWD_MAX_OBSTAVOIDANCE_PARAMS]
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unsigned char obstacleAvoidanceType;
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/// The index of the query filter used by this agent.
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unsigned char queryFilterType;
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};
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struct AX_DLL OffMeshLinkData
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{
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Vec3 startPosition; // position in local coordinate system.
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Vec3 endPosition; // position in local coordinate system.
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};
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/** @brief NavMeshAgent: The code wrapping of dtCrowdAgent, use component mode. */
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class AX_DLL NavMeshAgent : public Component
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{
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friend class NavMesh;
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public:
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enum NavMeshAgentSyncFlag
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{
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NONE = 0,
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NODE_TO_AGENT = 1,
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AGENT_TO_NODE = 2,
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NODE_AND_NODE = NODE_TO_AGENT | AGENT_TO_NODE,
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};
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typedef std::function<void(NavMeshAgent* agent, float totalTimeAfterMove)> MoveCallback;
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/**
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Create agent
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@param param The parameters of agent.
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*/
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static NavMeshAgent* create(const NavMeshAgentParam& param);
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static std::string_view getNavMeshAgentComponentName();
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virtual void onEnter() override;
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virtual void onExit() override;
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/** set agent radius */
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void setRadius(float radius);
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/** get agent radius */
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float getRadius() const;
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/** set agent height */
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void setHeight(float height);
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/** get agent height */
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float getHeight() const;
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/** set maximal acceleration of agent*/
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void setMaxAcceleration(float maxAcceleration);
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/** get maximal acceleration of agent*/
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float getMaxAcceleration() const;
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/** set maximal speed of agent */
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void setMaxSpeed(float maxSpeed);
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/** get maximal speed of agent */
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float getMaxSpeed() const;
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/** set separation weight */
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void setSeparationWeight(float weight);
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/** get separation weight */
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float getSeparationWeight() const;
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/** set obstacle avoidance type */
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void setObstacleAvoidanceType(unsigned char type);
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/** get obstacle avoidance type */
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unsigned char getObstacleAvoidanceType() const;
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/** get current velocity */
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Vec3 getCurrentVelocity() const;
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/**
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Move agent to a destination
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@param destination The position in world coordinate system.
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@param callback Use this function can catch movement state.
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*/
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void move(const Vec3& destination, const MoveCallback& callback = nullptr);
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/** pause movement */
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void pause();
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/** resume movement */
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void resume();
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/** stop movement */
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void stop();
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/**
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Set the reference axes of agent's orientation
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@param rotRefAxes The value of reference axes in local coordinate system.
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*/
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void setOrientationRefAxes(const Vec3& rotRefAxes);
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/**Set automatic Orientation */
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void setAutoOrientation(bool isAuto);
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/**Set automatic Traverse OffMeshLink */
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void setAutoTraverseOffMeshLink(bool isAuto);
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/**Check agent arrived OffMeshLink */
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bool isOnOffMeshLink();
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/**Traverse OffMeshLink manually*/
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void completeOffMeshLink();
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/**Get current OffMeshLink information*/
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OffMeshLinkData getCurrentOffMeshLinkData();
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void setUserData(void* data) { _userData = data; };
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void* getUserData() const { return _userData; };
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/**
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* synchronization between node and agent is time consuming, you can skip some synchronization using this function
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*/
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void setSyncFlag(const NavMeshAgentSyncFlag& flag) { _syncFlag = flag; }
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NavMeshAgentSyncFlag getSyncFlag() const { return _syncFlag; }
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/** synchronize parameter to agent. */
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void syncToAgent();
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/** synchronize parameter to node. */
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void syncToNode();
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/** get current velocity */
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Vec3 getVelocity() const;
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NavMeshAgent();
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virtual ~NavMeshAgent();
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private:
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bool initWith(const NavMeshAgentParam& param);
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void addTo(dtCrowd* crowed);
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void removeFrom(dtCrowd* crowed);
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void setNavMeshQuery(dtNavMeshQuery* query);
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void preUpdate(float delta);
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void postUpdate(float delta);
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static void convertTodtAgentParam(const NavMeshAgentParam& inParam, dtCrowdAgentParams& outParam);
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private:
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MoveCallback _moveCallback;
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NavMeshAgentParam _param;
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NavMeshAgentSyncFlag _syncFlag;
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Vec3 _origination;
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Vec3 _destination;
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Vec3 _rotRefAxes;
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unsigned char _state;
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bool _needAutoOrientation;
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int _agentID;
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bool _needUpdateAgent;
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bool _needMove;
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float _totalTimeAfterMove;
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void* _userData;
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dtCrowd* _crowd;
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dtNavMeshQuery* _navMeshQuery;
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};
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/** @} */
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NS_AX_END
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#endif // AX_ENABLE_NAVMESH
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#endif // __CCNAV_MESH_AGENT_H__
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