286 lines
9.7 KiB
C++
286 lines
9.7 KiB
C++
/*
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* Copyright (C) 2008-2018 TrinityCore <https://www.trinitycore.org/>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef Trinity_game_Position_h__
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#define Trinity_game_Position_h__
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#include "Define.h"
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#include <string>
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#include <cmath>
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class ByteBuffer;
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struct TC_GAME_API Position
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{
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Position(float x = 0, float y = 0, float z = 0, float o = 0)
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: m_positionX(x), m_positionY(y), m_positionZ(z), m_orientation(NormalizeOrientation(o)) { }
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Position(Position const& loc) { Relocate(loc); }
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// streamer tags
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struct XY;
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struct XYZ;
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struct XYZO;
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struct PackedXYZ;
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template <class Tag>
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struct ConstStreamer
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{
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explicit ConstStreamer(Position const& pos) : Pos(&pos) { }
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Position const* Pos;
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};
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template <class Tag>
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struct Streamer
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{
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explicit Streamer(Position& pos) : Pos(&pos) { }
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operator ConstStreamer<Tag>() const { return ConstStreamer<Tag>(*Pos); }
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Position* Pos;
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};
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float m_positionX;
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float m_positionY;
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float m_positionZ;
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// Better to limit access to _orientation field, to guarantee the value is normalized
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private:
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float m_orientation;
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public:
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bool operator==(Position const& a);
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inline bool operator!=(Position const& a)
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{
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return !(operator==(a));
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}
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void Relocate(float x, float y)
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{
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m_positionX = x; m_positionY = y;
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}
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void Relocate(float x, float y, float z)
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{
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m_positionX = x; m_positionY = y; m_positionZ = z;
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}
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void Relocate(float x, float y, float z, float orientation)
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{
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m_positionX = x; m_positionY = y; m_positionZ = z; SetOrientation(orientation);
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}
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void Relocate(Position const& pos)
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{
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m_positionX = pos.m_positionX; m_positionY = pos.m_positionY; m_positionZ = pos.m_positionZ; SetOrientation(pos.m_orientation);
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}
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void Relocate(Position const* pos)
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{
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m_positionX = pos->m_positionX; m_positionY = pos->m_positionY; m_positionZ = pos->m_positionZ; SetOrientation(pos->m_orientation);
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}
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void RelocateOffset(Position const& offset);
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void SetOrientation(float orientation)
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{
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m_orientation = NormalizeOrientation(orientation);
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}
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float GetPositionX() const { return m_positionX; }
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float GetPositionY() const { return m_positionY; }
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float GetPositionZ() const { return m_positionZ; }
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float GetOrientation() const { return m_orientation; }
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void GetPosition(float &x, float &y) const
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{
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x = m_positionX; y = m_positionY;
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}
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void GetPosition(float &x, float &y, float &z) const
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{
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x = m_positionX; y = m_positionY; z = m_positionZ;
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}
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void GetPosition(float &x, float &y, float &z, float &o) const
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{
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x = m_positionX; y = m_positionY; z = m_positionZ; o = m_orientation;
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}
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Position GetPosition() const { return *this; }
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Streamer<XY> PositionXYStream() { return Streamer<XY>(*this); }
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ConstStreamer<XY> PositionXYStream() const { return ConstStreamer<XY>(*this); }
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Streamer<XYZ> PositionXYZStream() { return Streamer<XYZ>(*this); }
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ConstStreamer<XYZ> PositionXYZStream() const { return ConstStreamer<XYZ>(*this); }
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Streamer<XYZO> PositionXYZOStream() { return Streamer<XYZO>(*this); }
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ConstStreamer<XYZO> PositionXYZOStream() const { return ConstStreamer<XYZO>(*this); }
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Streamer<PackedXYZ> PositionPackedXYZStream() { return Streamer<PackedXYZ>(*this); }
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ConstStreamer<PackedXYZ> PositionPackedXYZStream() const { return ConstStreamer<PackedXYZ>(*this); }
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bool IsPositionValid() const;
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float GetExactDist2dSq(float x, float y) const
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{
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float dx = m_positionX - x; float dy = m_positionY - y; return dx*dx + dy*dy;
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}
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float GetExactDist2d(float x, float y) const;
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float GetExactDist2dSq(Position const& pos) const
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{
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float dx = m_positionX - pos.m_positionX; float dy = m_positionY - pos.m_positionY; return dx*dx + dy*dy;
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}
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float GetExactDist2d(Position const& pos) const
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{
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return std::sqrt(GetExactDist2dSq(pos));
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}
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float GetExactDist2dSq(Position const* pos) const
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{
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float dx = m_positionX - pos->m_positionX; float dy = m_positionY - pos->m_positionY; return dx*dx + dy*dy;
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}
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float GetExactDist2d(Position const* pos) const;
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float GetExactDistSq(float x, float y, float z) const
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{
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float dz = m_positionZ - z; return GetExactDist2dSq(x, y) + dz*dz;
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}
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float GetExactDist(float x, float y, float z) const;
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float GetExactDistSq(Position const& pos) const
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{
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float dx = m_positionX - pos.m_positionX; float dy = m_positionY - pos.m_positionY; float dz = m_positionZ - pos.m_positionZ; return dx*dx + dy*dy + dz*dz;
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}
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float GetExactDist(Position const& pos) const
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{
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return std::sqrt(GetExactDistSq(pos));
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}
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float GetExactDistSq(Position const* pos) const
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{
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float dx = m_positionX - pos->m_positionX; float dy = m_positionY - pos->m_positionY; float dz = m_positionZ - pos->m_positionZ; return dx*dx + dy*dy + dz*dz;
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}
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float GetExactDist(Position const* pos) const;
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void GetPositionOffsetTo(Position const& endPos, Position& retOffset) const;
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Position GetPositionWithOffset(Position const& offset) const;
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float GetAngle(Position const* pos) const;
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float GetAngle(Position const& pos) const
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{
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return GetAngle(pos.m_positionX, pos.m_positionY);
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}
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float GetAngle(float x, float y) const;
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float GetRelativeAngle(Position const* pos) const
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{
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return GetAngle(pos) - m_orientation;
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}
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float GetRelativeAngle(float x, float y) const { return GetAngle(x, y) - m_orientation; }
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void GetSinCos(float x, float y, float &vsin, float &vcos) const;
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bool IsInDist2d(float x, float y, float dist) const
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{
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return GetExactDist2dSq(x, y) < dist * dist;
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}
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bool IsInDist2d(Position const* pos, float dist) const
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{
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return GetExactDist2dSq(pos) < dist * dist;
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}
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bool IsInDist(float x, float y, float z, float dist) const { return GetExactDistSq(x, y, z) < dist * dist; }
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bool IsInDist(Position const& pos, float dist) const { return GetExactDistSq(pos) < dist * dist; }
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bool IsInDist(Position const* pos, float dist) const { return GetExactDistSq(pos) < dist * dist; }
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bool IsWithinBox(const Position& center, float xradius, float yradius, float zradius) const;
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bool HasInArc(float arcangle, Position const* pos, float border = 2.0f) const;
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bool HasInLine(Position const* pos, float width) const;
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std::string ToString() const;
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// modulos a radian orientation to the range of 0..2PI
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static float NormalizeOrientation(float o);
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};
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#define MAPID_INVALID 0xFFFFFFFF
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class WorldLocation : public Position
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{
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public:
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explicit WorldLocation(uint32 _mapId = MAPID_INVALID, float _x = 0.f, float _y = 0.f, float _z = 0.f, float _o = 0.f)
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: Position(_x, _y, _z, _o), m_mapId(_mapId) { }
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WorldLocation(uint32 mapId, Position const& position)
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: Position(position), m_mapId(mapId) { }
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WorldLocation(WorldLocation const& loc)
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: Position(loc), m_mapId(loc.GetMapId()) { }
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void WorldRelocate(WorldLocation const& loc) { m_mapId = loc.GetMapId(); Relocate(loc); }
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void WorldRelocate(WorldLocation const* loc) { m_mapId = loc->GetMapId(); Relocate(loc); }
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void WorldRelocate(uint32 mapId, Position const& pos) { m_mapId = mapId; Relocate(pos); }
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void WorldRelocate(uint32 mapId = MAPID_INVALID, float x = 0.f, float y = 0.f, float z = 0.f, float o = 0.f)
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{
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m_mapId = mapId;
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Relocate(x, y, z, o);
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}
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WorldLocation GetWorldLocation() const
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{
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return *this;
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}
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uint32 GetMapId() const { return m_mapId; }
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uint32 m_mapId;
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};
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TC_GAME_API ByteBuffer& operator<<(ByteBuffer& buf, Position::ConstStreamer<Position::XY> const& streamer);
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TC_GAME_API ByteBuffer& operator>>(ByteBuffer& buf, Position::Streamer<Position::XY> const& streamer);
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TC_GAME_API ByteBuffer& operator<<(ByteBuffer& buf, Position::ConstStreamer<Position::XYZ> const& streamer);
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TC_GAME_API ByteBuffer& operator>>(ByteBuffer& buf, Position::Streamer<Position::XYZ> const& streamer);
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TC_GAME_API ByteBuffer& operator<<(ByteBuffer& buf, Position::ConstStreamer<Position::XYZO> const& streamer);
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TC_GAME_API ByteBuffer& operator>>(ByteBuffer& buf, Position::Streamer<Position::XYZO> const& streamer);
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TC_GAME_API ByteBuffer& operator<<(ByteBuffer& buf, Position::ConstStreamer<Position::PackedXYZ> const& streamer);
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template <class Tag>
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struct TaggedPosition
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{
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TaggedPosition(float x = 0.0f, float y = 0.0f, float z = 0.0f, float o = 0.0f) : Pos(x, y, z, o) { }
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TaggedPosition(Position const& pos) : Pos(pos) { }
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TaggedPosition& operator=(Position const& pos)
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{
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Pos.Relocate(pos);
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return *this;
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}
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operator Position() const { return Pos; }
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friend ByteBuffer& operator<<(ByteBuffer& buf, TaggedPosition const& tagged) { return buf << Position::ConstStreamer<Tag>(tagged.Pos); }
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friend ByteBuffer& operator>>(ByteBuffer& buf, TaggedPosition& tagged) { return buf >> Position::Streamer<Tag>(tagged.Pos); }
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Position Pos;
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};
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#endif // Trinity_game_Position_h__
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