126 lines
3.2 KiB
C++
126 lines
3.2 KiB
C++
#include "npc_unit.h"
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#include "enemy_body.h"
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#include "macros.h"
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#include "map_region.h"
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#include "patrol_path.h"
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#include "player_detector.h"
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void NpcUnit::_bind_methods() {
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BIND_HPROPERTY(Variant::OBJECT, patrol_path, PROPERTY_HINT_NODE_TYPE, "PatrolPath");
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BIND_PROPERTY(Variant::FLOAT, patrol_speed);
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BIND_HPROPERTY(Variant::OBJECT, region, PROPERTY_HINT_NODE_TYPE, "MapRegion");
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}
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void NpcUnit::remove_npc(EnemyBody *npc) {
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Transform3D const tf{ npc->get_global_transform() };
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remove_child(npc);
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this->get_parent()->add_child(npc);
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npc->set_global_transform(tf);
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}
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void NpcUnit::on_npc_death() {
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Vector<EnemyBody>::Size living{ this->npcs.size() };
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// remove any dead npcs from the list
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// leaving their bodies as separate nodes part of the tree
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for (Vector<EnemyBody>::Size i{ 0 }; i < this->npcs.size(); ++i) {
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EnemyBody *npc{ this->npcs[i] };
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if (npc->get_health()->get_health() <= 0) {
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--living;
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}
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}
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// remove unit from world once all npcs are dead
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if (living == 0) {
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for (EnemyBody *npc : this->npcs) {
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remove_npc(npc);
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}
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this->set_region(nullptr); // de-register from region
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this->queue_free();
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}
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}
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void NpcUnit::on_npc_awareness_changed(bool value) {
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if (value) {
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this->aware_of_player = true;
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}
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}
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void NpcUnit::child_added(Node *node) {
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if (EnemyBody * npc{ cast_to<EnemyBody>(node) }) {
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this->npcs.push_back(npc);
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npc->set_unit(this);
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Vector3 const offset{ npc->get_global_position() - get_global_position() };
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npc->set_unit_offset({ offset.x, offset.z });
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}
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}
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void NpcUnit::enter_tree() {
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this->connect("child_entered_tree", callable_mp(this, &self_type::child_added));
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}
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void NpcUnit::ready() {
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for (EnemyBody *npc : this->npcs) {
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if (PlayerDetector * detector{ cast_to<PlayerDetector>(npc->get_node(NodePath("%PlayerDetector"))) }) {
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detector->connect(PlayerDetector::sig_awareness_changed, callable_mp(this, &self_type::on_npc_awareness_changed));
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}
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if (HealthStatus * health{ npc->get_health() }) {
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health->connect(HealthStatus::sig_death, callable_mp(this, &self_type::on_npc_death));
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}
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}
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}
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void NpcUnit::_notification(int what) {
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// only run in-game
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if (Engine::get_singleton()->is_editor_hint()) {
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return;
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}
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switch (what) {
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default:
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return;
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case NOTIFICATION_ENTER_TREE:
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enter_tree();
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return;
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case NOTIFICATION_READY:
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ready();
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return;
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}
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}
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void NpcUnit::set_patrol_path(PatrolPath *path) {
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this->patrol_path = path;
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}
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PatrolPath *NpcUnit::get_patrol_path() const {
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return this->patrol_path;
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}
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bool NpcUnit::is_aware_of_player() const {
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return this->aware_of_player;
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}
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void NpcUnit::set_patrol_speed(float speed) {
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this->patrol_speed = speed;
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}
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float NpcUnit::get_patrol_speed() const {
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return this->patrol_speed;
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}
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void NpcUnit::set_region(MapRegion *region) {
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if (this->region == region) {
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return; // don't re-register
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}
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if (this->region != nullptr) {
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this->region->remove_unit(this);
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this->region->disconnect(MapRegion::sig_phase_changed, callable_mp(this, &self_type::on_npc_awareness_changed));
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}
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this->region = region;
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if (region != nullptr) {
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region->register_unit(this);
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region->connect(MapRegion::sig_phase_changed, callable_mp(this, &self_type::on_npc_awareness_changed));
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}
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}
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MapRegion *NpcUnit::get_region() const {
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return this->region;
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}
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