pandemonium_engine/modules/steering_ai/behaviors/gsai_blend.cpp

75 lines
2.2 KiB
C++

#include "gsai_blend.h"
#include "../gsai_steering_agent.h"
#include "../gsai_target_acceleration.h"
#include "../gsai_utils.h"
void GSAIBlend::add_behavior(const Ref<GSAISteeringBehavior> &behavior, const float weight) {
ERR_FAIL_COND(!behavior.is_valid());
GSAIBlendBehaviorEntry e;
e.behavior = behavior;
e.weight = weight;
_behaviors.push_back(e);
}
Ref<GSAISteeringBehavior> GSAIBlend::get_behavior(const int index) {
ERR_FAIL_INDEX_V(index, _behaviors.size(), Ref<GSAISteeringBehavior>());
return _behaviors[index].behavior;
}
float GSAIBlend::get_behavior_weight(const int index) {
ERR_FAIL_INDEX_V(index, _behaviors.size(), 0);
return _behaviors[index].weight;
}
void GSAIBlend::remove_behavior(const int index) {
ERR_FAIL_INDEX(index, _behaviors.size());
_behaviors.remove(index);
}
int GSAIBlend::get_behaviour_count() {
return _behaviors.size();
}
Ref<GSAITargetAcceleration> GSAIBlend::get_accel() {
return _accel;
}
void GSAIBlend::_calculate_steering(Ref<GSAITargetAcceleration> blended_accel) {
ERR_FAIL_COND(!agent.is_valid());
blended_accel->set_zero();
for (int i = 0; i < _behaviors.size(); ++i) { //i in range(_behaviors.size())
GSAIBlendBehaviorEntry bw = _behaviors[i];
bw.behavior->calculate_steering(_accel);
blended_accel->add_scaled_accel(_accel, bw.weight);
}
blended_accel->set_linear(GSAIUtils::clampedv3(blended_accel->get_linear(), agent->get_linear_acceleration_max()));
float angular_acceleration_max = agent->get_angular_acceleration_max();
blended_accel->set_angular(CLAMP(blended_accel->get_angular(), -angular_acceleration_max, angular_acceleration_max));
}
GSAIBlend::GSAIBlend() {
_accel.instance();
}
GSAIBlend::~GSAIBlend() {
}
void GSAIBlend::_bind_methods() {
ClassDB::bind_method(D_METHOD("add_behavior", "behavior", "weight"), &GSAIBlend::add_behavior);
ClassDB::bind_method(D_METHOD("get_behavior", "index"), &GSAIBlend::get_behavior);
ClassDB::bind_method(D_METHOD("get_behavior_weight", "index"), &GSAIBlend::get_behavior_weight);
ClassDB::bind_method(D_METHOD("remove_behavior", "index"), &GSAIBlend::remove_behavior);
ClassDB::bind_method(D_METHOD("get_behaviour_count"), &GSAIBlend::get_behaviour_count);
ClassDB::bind_method(D_METHOD("get_accel"), &GSAIBlend::get_accel);
}