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105 lines
4.5 KiB
C++
105 lines
4.5 KiB
C++
/*************************************************************************/
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/* gsai_blend.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* PANDEMONIUM ENGINE */
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/* https://github.com/Relintai/pandemonium_engine */
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/*************************************************************************/
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/* Copyright (c) 2022-present Péter Magyar. */
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/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */
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/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#include "gsai_blend.h"
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#include "../gsai_steering_agent.h"
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#include "../gsai_target_acceleration.h"
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#include "../gsai_utils.h"
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void GSAIBlend::add_behavior(const Ref<GSAISteeringBehavior> &behavior, const float weight) {
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ERR_FAIL_COND(!behavior.is_valid());
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GSAIBlendBehaviorEntry e;
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e.behavior = behavior;
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e.weight = weight;
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_behaviors.push_back(e);
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}
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Ref<GSAISteeringBehavior> GSAIBlend::get_behavior(const int index) {
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ERR_FAIL_INDEX_V(index, _behaviors.size(), Ref<GSAISteeringBehavior>());
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return _behaviors[index].behavior;
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}
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float GSAIBlend::get_behavior_weight(const int index) {
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ERR_FAIL_INDEX_V(index, _behaviors.size(), 0);
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return _behaviors[index].weight;
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}
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void GSAIBlend::remove_behavior(const int index) {
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ERR_FAIL_INDEX(index, _behaviors.size());
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_behaviors.remove(index);
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}
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int GSAIBlend::get_behaviour_count() {
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return _behaviors.size();
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}
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Ref<GSAITargetAcceleration> GSAIBlend::get_accel() {
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return _accel;
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}
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void GSAIBlend::_calculate_steering(Ref<GSAITargetAcceleration> blended_accel) {
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ERR_FAIL_COND(!agent.is_valid());
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blended_accel->set_zero();
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for (int i = 0; i < _behaviors.size(); ++i) { //i in range(_behaviors.size())
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GSAIBlendBehaviorEntry bw = _behaviors[i];
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bw.behavior->calculate_steering(_accel);
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blended_accel->add_scaled_accel(_accel, bw.weight);
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}
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blended_accel->set_linear(GSAIUtils::clampedv3(blended_accel->get_linear(), agent->get_linear_acceleration_max()));
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float angular_acceleration_max = agent->get_angular_acceleration_max();
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blended_accel->set_angular(CLAMP(blended_accel->get_angular(), -angular_acceleration_max, angular_acceleration_max));
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}
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GSAIBlend::GSAIBlend() {
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_accel.instance();
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}
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GSAIBlend::~GSAIBlend() {
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}
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void GSAIBlend::_bind_methods() {
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ClassDB::bind_method(D_METHOD("add_behavior", "behavior", "weight"), &GSAIBlend::add_behavior);
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ClassDB::bind_method(D_METHOD("get_behavior", "index"), &GSAIBlend::get_behavior);
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ClassDB::bind_method(D_METHOD("get_behavior_weight", "index"), &GSAIBlend::get_behavior_weight);
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ClassDB::bind_method(D_METHOD("remove_behavior", "index"), &GSAIBlend::remove_behavior);
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ClassDB::bind_method(D_METHOD("get_behaviour_count"), &GSAIBlend::get_behaviour_count);
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ClassDB::bind_method(D_METHOD("get_accel"), &GSAIBlend::get_accel);
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}
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