mirror of
https://github.com/Relintai/pandemonium_engine.git
synced 2024-12-22 11:56:49 +01:00
79 lines
2.5 KiB
C++
79 lines
2.5 KiB
C++
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#include "gsai_pursue.h"
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#include "core/math/math_funcs.h"
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#include "../gsai_steering_agent.h"
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#include "../gsai_target_acceleration.h"
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Ref<GSAISteeringAgent> GSAIPursue::get_target() {
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return target;
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}
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void GSAIPursue::set_target(const Ref<GSAISteeringAgent> &val) {
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target = val;
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}
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float GSAIPursue::get_predict_time_max() const {
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return predict_time_max;
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}
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void GSAIPursue::set_predict_time_max(const float val) {
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predict_time_max = val;
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}
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void GSAIPursue::_calculate_steering(Ref<GSAITargetAcceleration> acceleration) {
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ERR_FAIL_COND(!target.is_valid());
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ERR_FAIL_COND(!agent.is_valid());
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Vector3 target_position = target->get_position();
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float distance_squared = (target_position - agent->get_position()).length_squared();
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float speed_squared = agent->get_linear_velocity().length_squared();
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float predict_time = predict_time_max;
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if (speed_squared > 0) {
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float predict_time_squared = distance_squared / speed_squared;
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if (predict_time_squared < predict_time_max * predict_time_max) {
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predict_time = Math::sqrt(predict_time_squared);
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}
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}
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Vector3 linear = ((target_position + (target->get_linear_velocity() * predict_time)) - agent->get_position()).normalized();
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linear *= get_modified_acceleration();
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acceleration->set_linear(linear);
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acceleration->set_angular(0);
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}
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float GSAIPursue::get_modified_acceleration() {
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return call("_get_modified_acceleration");
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}
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float GSAIPursue::_get_modified_acceleration() {
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ERR_FAIL_COND_V(!agent.is_valid(), 0);
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return agent->get_linear_acceleration_max();
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}
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GSAIPursue::GSAIPursue() {
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predict_time_max = 1.0;
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}
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GSAIPursue::~GSAIPursue() {
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}
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void GSAIPursue::_bind_methods() {
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ClassDB::bind_method(D_METHOD("get_target"), &GSAIPursue::get_target);
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ClassDB::bind_method(D_METHOD("set_target", "value"), &GSAIPursue::set_target);
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ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "target", PROPERTY_HINT_RESOURCE_TYPE, "GSAISteeringAgent"), "set_target", "get_target");
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ClassDB::bind_method(D_METHOD("get_predict_time_max"), &GSAIPursue::get_predict_time_max);
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ClassDB::bind_method(D_METHOD("set_predict_time_max", "value"), &GSAIPursue::set_predict_time_max);
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ADD_PROPERTY(PropertyInfo(Variant::REAL, "predict_time_max"), "set_predict_time_max", "get_predict_time_max");
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BIND_VMETHOD(MethodInfo(Variant::REAL, "_get_modified_acceleration"));
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ClassDB::bind_method(D_METHOD("get_modified_acceleration"), &GSAIPursue::get_modified_acceleration);
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ClassDB::bind_method(D_METHOD("_get_modified_acceleration"), &GSAIPursue::_get_modified_acceleration);
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}
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