First Commit
For Azeroth!
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Yehonal
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/*
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* Copyright (C)
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* Copyright (C)
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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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#include "Creature.h"
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#include "CreatureAI.h"
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#include "MapManager.h"
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#include "FleeingMovementGenerator.h"
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#include "ObjectAccessor.h"
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#include "MoveSplineInit.h"
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#include "MoveSpline.h"
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#include "Player.h"
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#define MIN_QUIET_DISTANCE 28.0f
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#define MAX_QUIET_DISTANCE 43.0f
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template<class T>
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void FleeingMovementGenerator<T>::_setTargetLocation(T* owner)
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{
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if (!owner)
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return;
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if (owner->HasUnitState(UNIT_STATE_ROOT | UNIT_STATE_STUNNED))
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return;
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if (!_setMoveData(owner))
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return;
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float x, y, z;
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if (!_getPoint(owner, x, y, z))
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return;
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owner->AddUnitState(UNIT_STATE_FLEEING_MOVE);
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Movement::MoveSplineInit init(owner);
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init.MoveTo(x,y,z);
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init.SetWalk(false);
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init.Launch();
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}
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template<class T>
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bool FleeingMovementGenerator<T>::_getPoint(T* owner, float &x, float &y, float &z)
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{
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if (!&owner)
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return false;
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x = owner->GetPositionX();
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y = owner->GetPositionY();
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z = owner->GetPositionZ();
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float temp_x, temp_y, angle;
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const Map* _map = owner->GetBaseMap();
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// primitive path-finding
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for (uint8 i = 0; i < 18; ++i)
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{
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if (i_only_forward && i > 2)
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break;
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float distance = 5.0f;
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switch (i)
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{
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case 0:
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angle = i_cur_angle;
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break;
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case 1:
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angle = i_cur_angle;
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distance /= 2;
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break;
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case 2:
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angle = i_cur_angle;
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distance /= 4;
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break;
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case 3:
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angle = i_cur_angle + static_cast<float>(M_PI/4);
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break;
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case 4:
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angle = i_cur_angle - static_cast<float>(M_PI/4);
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break;
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case 5:
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angle = i_cur_angle + static_cast<float>(M_PI/4);
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distance /= 2;
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break;
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case 6:
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angle = i_cur_angle - static_cast<float>(M_PI/4);
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distance /= 2;
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break;
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case 7:
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angle = i_cur_angle + static_cast<float>(M_PI/2);
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break;
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case 8:
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angle = i_cur_angle - static_cast<float>(M_PI/2);
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break;
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case 9:
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angle = i_cur_angle + static_cast<float>(M_PI/2);
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distance /= 2;
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break;
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case 10:
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angle = i_cur_angle - static_cast<float>(M_PI/2);
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distance /= 2;
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break;
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case 11:
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angle = i_cur_angle + static_cast<float>(M_PI/4);
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distance /= 4;
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break;
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case 12:
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angle = i_cur_angle - static_cast<float>(M_PI/4);
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distance /= 4;
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break;
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case 13:
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angle = i_cur_angle + static_cast<float>(M_PI/2);
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distance /= 4;
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break;
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case 14:
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angle = i_cur_angle - static_cast<float>(M_PI/2);
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distance /= 4;
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break;
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case 15:
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angle = i_cur_angle + static_cast<float>(3*M_PI/4);
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distance /= 2;
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break;
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case 16:
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angle = i_cur_angle - static_cast<float>(3*M_PI/4);
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distance /= 2;
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break;
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case 17:
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angle = i_cur_angle + static_cast<float>(M_PI);
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distance /= 2;
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break;
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default:
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angle = 0.0f;
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distance = 0.0f;
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break;
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}
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temp_x = x + distance * cos(angle);
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temp_y = y + distance * sin(angle);
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Trinity::NormalizeMapCoord(temp_x);
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Trinity::NormalizeMapCoord(temp_y);
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if (owner->IsWithinLOS(temp_x, temp_y, z))
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{
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bool is_water_now = _map->IsInWater(x,y,z);
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if (is_water_now && _map->IsInWater(temp_x,temp_y,z))
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{
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x = temp_x;
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y = temp_y;
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return true;
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}
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float new_z = _map->GetHeight(owner->GetPhaseMask(), temp_x, temp_y, z, true);
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if (new_z <= INVALID_HEIGHT || fabs(z-new_z) > 3.0f)
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continue;
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bool is_water_next = _map->IsInWater(temp_x, temp_y, new_z);
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if ((is_water_now && !is_water_next && !is_land_ok) || (!is_water_now && is_water_next && !is_water_ok))
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continue;
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if (!(new_z - z) || distance / fabs(new_z - z) > 1.0f)
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{
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float new_z_left = _map->GetHeight(owner->GetPhaseMask(), temp_x + 1.0f*cos(angle+static_cast<float>(M_PI/2)),temp_y + 1.0f*sin(angle+static_cast<float>(M_PI/2)),z,true);
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float new_z_right = _map->GetHeight(owner->GetPhaseMask(), temp_x + 1.0f*cos(angle-static_cast<float>(M_PI/2)),temp_y + 1.0f*sin(angle-static_cast<float>(M_PI/2)),z,true);
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if (fabs(new_z_left - new_z) < 1.2f && fabs(new_z_right - new_z) < 1.2f)
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{
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x = temp_x;
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y = temp_y;
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z = new_z;
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return true;
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}
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}
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}
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}
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i_to_distance_from_caster = 0.0f;
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i_nextCheckTime.Reset(urand(500,1000));
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return false;
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}
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template<class T>
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bool FleeingMovementGenerator<T>::_setMoveData(T* owner)
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{
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float cur_dist_xyz = owner->GetDistance(i_caster_x, i_caster_y, i_caster_z);
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if (i_to_distance_from_caster > 0.0f)
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{
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if ((i_last_distance_from_caster > i_to_distance_from_caster && cur_dist_xyz < i_to_distance_from_caster) ||
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// if we reach lower distance
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(i_last_distance_from_caster > i_to_distance_from_caster && cur_dist_xyz > i_last_distance_from_caster) ||
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// if we can't be close
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(i_last_distance_from_caster < i_to_distance_from_caster && cur_dist_xyz > i_to_distance_from_caster) ||
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// if we reach bigger distance
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(cur_dist_xyz > MAX_QUIET_DISTANCE) || // if we are too far
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(i_last_distance_from_caster > MIN_QUIET_DISTANCE && cur_dist_xyz < MIN_QUIET_DISTANCE))
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// if we leave 'quiet zone'
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{
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// we are very far or too close, stopping
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i_to_distance_from_caster = 0.0f;
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i_nextCheckTime.Reset(urand(500,1000));
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return false;
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}
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else
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{
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// now we are running, continue
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i_last_distance_from_caster = cur_dist_xyz;
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return true;
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}
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}
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float cur_dist;
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float angle_to_caster;
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if (Unit* fright = ObjectAccessor::GetUnit(*owner, i_frightGUID))
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{
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cur_dist = fright->GetDistance(owner);
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if (cur_dist < cur_dist_xyz)
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{
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i_caster_x = fright->GetPositionX();
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i_caster_y = fright->GetPositionY();
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i_caster_z = fright->GetPositionZ();
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angle_to_caster = fright->GetAngle(owner);
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}
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else
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{
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cur_dist = cur_dist_xyz;
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angle_to_caster = owner->GetAngle(i_caster_x, i_caster_y) + static_cast<float>(M_PI);
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}
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}
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else
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{
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cur_dist = cur_dist_xyz;
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angle_to_caster = owner->GetAngle(i_caster_x, i_caster_y) + static_cast<float>(M_PI);
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}
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// if we too close may use 'path-finding' else just stop
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i_only_forward = cur_dist >= MIN_QUIET_DISTANCE/3;
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//get angle and 'distance from caster' to run
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float angle;
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if (i_cur_angle == 0.0f && i_last_distance_from_caster == 0.0f) //just started, first time
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{
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angle = (float)rand_norm()*(1.0f - cur_dist/MIN_QUIET_DISTANCE) * static_cast<float>(M_PI/3) + (float)rand_norm()*static_cast<float>(M_PI*2/3);
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i_to_distance_from_caster = MIN_QUIET_DISTANCE;
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i_only_forward = true;
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}
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else if (cur_dist < MIN_QUIET_DISTANCE)
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{
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angle = static_cast<float>(M_PI/6) + (float)rand_norm()*static_cast<float>(M_PI*2/3);
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i_to_distance_from_caster = cur_dist*2/3 + (float)rand_norm()*(MIN_QUIET_DISTANCE - cur_dist*2/3);
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}
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else if (cur_dist > MAX_QUIET_DISTANCE)
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{
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angle = (float)rand_norm()*static_cast<float>(M_PI/3) + static_cast<float>(M_PI*2/3);
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i_to_distance_from_caster = MIN_QUIET_DISTANCE + 2.5f + (float)rand_norm()*(MAX_QUIET_DISTANCE - MIN_QUIET_DISTANCE - 2.5f);
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}
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else
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{
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angle = (float)rand_norm()*static_cast<float>(M_PI);
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i_to_distance_from_caster = MIN_QUIET_DISTANCE + 2.5f + (float)rand_norm()*(MAX_QUIET_DISTANCE - MIN_QUIET_DISTANCE - 2.5f);
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}
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int8 sign = (float)rand_norm() > 0.5f ? 1 : -1;
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i_cur_angle = sign*angle + angle_to_caster;
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// current distance
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i_last_distance_from_caster = cur_dist;
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return true;
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}
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template<class T>
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void FleeingMovementGenerator<T>::DoInitialize(T* owner)
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{
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if (!owner)
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return;
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owner->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_FLEEING);
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owner->AddUnitState(UNIT_STATE_FLEEING|UNIT_STATE_FLEEING_MOVE);
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_Init(owner);
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if (Unit* fright = ObjectAccessor::GetUnit(*owner, i_frightGUID))
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{
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i_caster_x = fright->GetPositionX();
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i_caster_y = fright->GetPositionY();
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i_caster_z = fright->GetPositionZ();
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}
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else
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{
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i_caster_x = owner->GetPositionX();
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i_caster_y = owner->GetPositionY();
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i_caster_z = owner->GetPositionZ();
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}
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i_only_forward = true;
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i_cur_angle = 0.0f;
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i_last_distance_from_caster = 0.0f;
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i_to_distance_from_caster = 0.0f;
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_setTargetLocation(owner);
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}
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template<>
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void FleeingMovementGenerator<Creature>::_Init(Creature* owner)
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{
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if (!&owner)
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return;
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//owner->SetTargetGuid(ObjectGuid());
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is_water_ok = owner->CanSwim();
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is_land_ok = owner->CanWalk();
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}
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template<>
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void FleeingMovementGenerator<Player>::_Init(Player* )
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{
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is_water_ok = true;
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is_land_ok = true;
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}
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template<>
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void FleeingMovementGenerator<Player>::DoFinalize(Player* owner)
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{
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owner->RemoveFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_FLEEING);
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owner->ClearUnitState(UNIT_STATE_FLEEING|UNIT_STATE_FLEEING_MOVE);
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}
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template<>
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void FleeingMovementGenerator<Creature>::DoFinalize(Creature* owner)
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{
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owner->RemoveFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_FLEEING);
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owner->ClearUnitState(UNIT_STATE_FLEEING|UNIT_STATE_FLEEING_MOVE);
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if (owner->GetVictim())
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owner->SetTarget(owner->GetVictim()->GetGUID());
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}
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template<class T>
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void FleeingMovementGenerator<T>::DoReset(T* owner)
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{
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DoInitialize(owner);
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}
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template<class T>
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bool FleeingMovementGenerator<T>::DoUpdate(T* owner, uint32 time_diff)
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{
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if (!owner || !owner->IsAlive())
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return false;
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if (owner->HasUnitState(UNIT_STATE_ROOT | UNIT_STATE_STUNNED))
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{
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owner->ClearUnitState(UNIT_STATE_FLEEING_MOVE);
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return true;
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}
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i_nextCheckTime.Update(time_diff);
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if (i_nextCheckTime.Passed() && owner->movespline->Finalized())
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_setTargetLocation(owner);
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return true;
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}
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template void FleeingMovementGenerator<Player>::DoInitialize(Player*);
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template void FleeingMovementGenerator<Creature>::DoInitialize(Creature*);
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template bool FleeingMovementGenerator<Player>::_setMoveData(Player*);
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template bool FleeingMovementGenerator<Creature>::_setMoveData(Creature*);
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template bool FleeingMovementGenerator<Player>::_getPoint(Player*, float&, float&, float&);
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template bool FleeingMovementGenerator<Creature>::_getPoint(Creature*, float&, float&, float&);
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template void FleeingMovementGenerator<Player>::_setTargetLocation(Player*);
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template void FleeingMovementGenerator<Creature>::_setTargetLocation(Creature*);
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template void FleeingMovementGenerator<Player>::DoReset(Player*);
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template void FleeingMovementGenerator<Creature>::DoReset(Creature*);
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template bool FleeingMovementGenerator<Player>::DoUpdate(Player*, uint32);
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template bool FleeingMovementGenerator<Creature>::DoUpdate(Creature*, uint32);
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void TimedFleeingMovementGenerator::Finalize(Unit* owner)
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{
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owner->RemoveFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_FLEEING);
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owner->ClearUnitState(UNIT_STATE_FLEEING|UNIT_STATE_FLEEING_MOVE);
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if (owner->GetVictim())
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owner->SetTarget(owner->GetVictim()->GetGUID());
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}
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bool TimedFleeingMovementGenerator::Update(Unit* owner, uint32 time_diff)
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{
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if (!owner->IsAlive())
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return false;
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if (owner->HasUnitState(UNIT_STATE_ROOT | UNIT_STATE_STUNNED))
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{
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owner->ClearUnitState(UNIT_STATE_FLEEING_MOVE);
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return true;
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}
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i_totalFleeTime.Update(time_diff);
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if (i_totalFleeTime.Passed())
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return false;
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// This calls grant-parent Update method hiden by FleeingMovementGenerator::Update(Creature &, uint32) version
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// This is done instead of casting Unit& to Creature& and call parent method, then we can use Unit directly
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return MovementGeneratorMedium< Creature, FleeingMovementGenerator<Creature> >::Update(owner, time_diff);
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}
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