53 lines
2 KiB
C++
53 lines
2 KiB
C++
#include "unit_world_state.hpp"
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#include "unit.hpp"
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#include "utils/godot_macros.hpp"
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#include <godot_cpp/classes/physics_ray_query_parameters3d.hpp>
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#include <godot_cpp/classes/world3d.hpp>
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#include <godot_cpp/classes/physics_direct_space_state3d.hpp>
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#include <godot_cpp/variant/callable_method_pointer.hpp>
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#include <godot_cpp/variant/utility_functions.hpp>
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void UnitWorldState::_bind_methods() {
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#define CLASSNAME UnitWorldState
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GDSIGNAL("attention_changed");
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GDFUNCTION(get_can_see_target);
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GDFUNCTION(get_target_dead);
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GDFUNCTION(get_is_at_target);
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GDFUNCTION(get_target_node);
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}
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void UnitWorldState::_enter_tree() { GDGAMEONLY();
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this->parent_unit = gd::Object::cast_to<Unit>(this->get_parent());
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this->agent = this->get_node<gd::NavigationAgent3D>("../NavigationAgent3D");
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if(this->parent_unit == nullptr)
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gd::UtilityFunctions::push_warning("UnitWorldState needs to be a child node of a Unit");
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}
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bool UnitWorldState::get_can_see_target() const {
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gd::Transform3D const eyes = this->parent_unit->get_eye_transform();
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gd::Transform3D const target = this->target_node->get_global_transform();
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gd::Ref<gd::PhysicsRayQueryParameters3D> const query{gd::PhysicsRayQueryParameters3D::create(eyes.origin, target.origin, 0x1 | 0x4, {this->target_node})};
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return this->parent_unit->get_world_3d()->get_direct_space_state()->intersect_ray(query).is_empty();
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}
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bool UnitWorldState::get_is_at_target() const {
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if(this->target_node == nullptr) return true;
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gd::Vector3 const target = this->target_node->get_global_position();
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gd::Vector3 const current = this->parent_unit->get_global_position();
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float const min_dist = this->agent->get_target_desired_distance();
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return (target - current).length_squared() < min_dist * min_dist;
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}
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bool UnitWorldState::get_target_dead() const {
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return false;
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}
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void UnitWorldState::set_target_node(gd::Node3D *node) {
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this->target_node = node;
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this->emit_signal("attention_changed");
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}
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gd::Node3D *UnitWorldState::get_target_node() const {
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return this->target_node;
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}
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