pandemonium_engine/modules/steering_ai/behaviors/gsai_cohesion.cpp

65 lines
3.1 KiB
C++

/*************************************************************************/
/* gsai_cohesion.cpp */
/*************************************************************************/
/* This file is part of: */
/* PANDEMONIUM ENGINE */
/* https://github.com/Relintai/pandemonium_engine */
/*************************************************************************/
/* Copyright (c) 2022-present Péter Magyar. */
/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */
/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "gsai_cohesion.h"
#include "../gsai_steering_agent.h"
#include "../gsai_target_acceleration.h"
#include "../proximities/gsai_proximity.h"
void GSAICohesion::_calculate_steering(Ref<GSAITargetAcceleration> acceleration) {
ERR_FAIL_COND(!proximity.is_valid());
ERR_FAIL_COND(!agent.is_valid());
acceleration->set_zero();
_center_of_mass = Vector3();
int neighbor_count = proximity->find_neighbors(_callback);
if (neighbor_count > 0) {
_center_of_mass *= 1.0 / neighbor_count;
acceleration->set_linear((_center_of_mass - agent->get_position()).normalized() * agent->get_linear_acceleration_max());
}
}
bool GSAICohesion::_report_neighbor(Ref<GSAISteeringAgent> neighbor) {
_center_of_mass += neighbor->get_position();
return true;
}
GSAICohesion::GSAICohesion() {
}
GSAICohesion::~GSAICohesion() {
}
void GSAICohesion::_bind_methods() {
}