feat: enemy death and damage effects

modules/wave_survival/enemy_body.cpp

@@ -2,7 +2,9 @@
 #include "macros.h"
 #include "npc_unit.h"
 
-void EnemyBody::_bind_methods() {}
+void EnemyBody::_bind_methods() {
+	ClassDB::bind_method(D_METHOD("set_movement_direction", "direction"), &self_type::set_movement_direction);
+}
 
 void EnemyBody::ready() {
 	this->fsm = cast_to<StateMachine>(get_node(NodePath("%StateMachine")));

modules/wave_survival/hitbox.cpp

@@ -5,6 +5,7 @@
 void Hitbox::_bind_methods() {
 	BIND_HPROPERTY(Variant::OBJECT, health, PROPERTY_HINT_NODE_TYPE, "HealthStatus");
 	BIND_PROPERTY(Variant::FLOAT, damage_modifier);
+	BIND_HPROPERTY(Variant::OBJECT, impact_effect, PROPERTY_HINT_RESOURCE_TYPE, "PackedScene");
 }
 
 void Hitbox::set_health(HealthStatus *value) {
@@ -22,3 +23,11 @@ void Hitbox::set_damage_modifier(float value) {
 float Hitbox::get_damage_modifier() const {
 	return this->damage_modifier;
 }
+
+void Hitbox::set_impact_effect(Ref<PackedScene> effect) {
+	this->impact_effect = effect;
+}
+
+Ref<PackedScene> Hitbox::get_impact_effect() const {
+	return this->impact_effect;
+}

modules/wave_survival/hitbox.h

@@ -2,6 +2,7 @@
 #define HITBOX_H
 
 #include "scene/3d/physics/area_3d.h"
+#include "scene/resources/packed_scene.h"
 class HealthStatus;
 
 class Hitbox : public Area3D {
@@ -14,9 +15,13 @@ public:
 	void set_damage_modifier(float value);
 	float get_damage_modifier() const;
 
+	void set_impact_effect(Ref<PackedScene> scene);
+	Ref<PackedScene> get_impact_effect() const;
+
 private:
 	HealthStatus *health{ nullptr };
 	float damage_modifier{ 1.f };
+	Ref<PackedScene> impact_effect{};
 };
 
 #endif // !HITBOX_H

modules/wave_survival/hitscan_muzzle.cpp

@@ -14,9 +14,13 @@ void HitscanMuzzle::instantiate_impact_effect() {
 	if (get_collider() == nullptr) {
 		return;
 	}
-	Node *effect_as_node{ this->impact_effect->instantiate() };
+	Ref<PackedScene> effect_scene{ get_collider()->call("get_impact_effect") };
+	if (!effect_scene.is_valid()) {
+		effect_scene = this->impact_effect;
+	}
+	Node *effect_as_node{ effect_scene->instantiate() };
 	if (Node3D * effect{ cast_to<Node3D>(effect_as_node) }) {
-		get_tree()->get_current_scene()->add_child(effect);
+		cast_to<Node>(get_collider())->add_child(effect);
 		Vector3 const point{ get_collision_point() };
 		Vector3 const normal{ get_collision_normal() };
 		Vector3 const position{ get_global_position() };

project/assets/models/enemies/model_scenes/wretched.tscn

@@ -1,6 +1,7 @@
-[gd_scene load_steps=6 format=3 uid="uid://crtgy2rph5to2"]
+[gd_scene load_steps=7 format=3 uid="uid://crtgy2rph5to2"]
 
 [ext_resource type="PackedScene" uid="uid://ho7wwawj6s65" path="res://assets/models/enemies/wretched.blend" id="1_w0sx6"]
+[ext_resource type="PackedScene" uid="uid://clbq43giddldc" path="res://objects/effects/blood_effect.tscn" id="2_a12c4"]
 
 [sub_resource type="BoxShape3D" id="BoxShape3D_w0sx6"]
 size = Vector3(0.35351563, 0.8721161, 0.29003906)
@@ -21,6 +22,7 @@ transform = Transform3D(1, 2.1910389e-16, -2.2202524e-16, -2.2202514e-16, 0.9999
 collision_layer = 6
 collision_mask = 0
 monitoring = false
+impact_effect = ExtResource("2_a12c4")
 
 [node name="CollisionShape3D2" type="CollisionShape3D" parent="Character/Skeleton3D/Hitbox" index="0"]
 transform = Transform3D(1, 5.875464e-21, 0, 6.2038546e-25, 1.0000037, 0, 0, 0, 1.0000037, -2.2362435e-16, 0.35283393, -0.013339132)
@@ -36,6 +38,7 @@ transform = Transform3D(1, 2.1910389e-16, -2.2202524e-16, -2.2202514e-16, 0.9999
 collision_layer = 4
 collision_mask = 0
 monitoring = false
+impact_effect = ExtResource("2_a12c4")
 
 [node name="CollisionShape3D" type="CollisionShape3D" parent="Character/Skeleton3D/SpineAttach/Hitbox" index="0"]
 transform = Transform3D(1, -2.2202515e-16, 2.1910396e-16, 2.1910385e-16, 0.9999122, 0.0132439565, -2.2202522e-16, -0.013243958, 0.99991226, 0.0023498535, 1.1967317, -0.0032694251)
@@ -52,6 +55,7 @@ collision_layer = 4
 collision_mask = 0
 monitoring = false
 damage_modifier = 2.0
+impact_effect = ExtResource("2_a12c4")
 
 [node name="CollisionShape3D" type="CollisionShape3D" parent="Character/Skeleton3D/HeadAttach/Hitbox" index="0"]
 transform = Transform3D(1, -2.2202515e-16, 2.1910393e-16, 2.1910723e-16, 0.9999161, 0.013243863, -2.2202641e-16, -0.013243858, 0.9999161, -7.644832e-17, 1.3035276, -0.01432839)

project/objects/effects/blood_effect.tscn

@@ -0,0 +1,56 @@
+[gd_scene load_steps=7 format=3 uid="uid://clbq43giddldc"]
+
+[sub_resource type="GDScript" id="GDScript_abt0s"]
+script/source = "extends Node3D
+
+func _init():
+	set_disable_scale(true)
+
+func _ready():
+	$GPUParticles3D.emitting = true
+"
+
+[sub_resource type="Curve" id="Curve_abt0s"]
+_data = [Vector2(0.55064934, 1), 0.0, 0.0, 0, 0, Vector2(1, 0), -3.5361242, 0.0, 0, 0]
+point_count = 2
+
+[sub_resource type="CurveTexture" id="CurveTexture_rtbd5"]
+curve = SubResource("Curve_abt0s")
+
+[sub_resource type="ParticleProcessMaterial" id="ParticleProcessMaterial_abt0s"]
+direction = Vector3(0, 0, -1)
+spread = 5.0
+initial_velocity_min = 1.0
+initial_velocity_max = 3.0
+scale_curve = SubResource("CurveTexture_rtbd5")
+
+[sub_resource type="StandardMaterial3D" id="StandardMaterial3D_rtbd5"]
+shading_mode = 2
+diffuse_mode = 1
+specular_mode = 2
+albedo_color = Color(0.7921569, 0.09803922, 0.09019608, 1)
+
+[sub_resource type="QuadMesh" id="QuadMesh_qrff5"]
+material = SubResource("StandardMaterial3D_rtbd5")
+size = Vector2(0.3, 0.3)
+
+[node name="BloodEffect" type="Node3D"]
+script = SubResource("GDScript_abt0s")
+
+[node name="Timer" type="Timer" parent="."]
+wait_time = 0.2
+one_shot = true
+autostart = true
+
+[node name="GPUParticles3D" type="GPUParticles3D" parent="."]
+emitting = false
+amount = 10
+lifetime = 0.2
+one_shot = true
+explosiveness = 0.6
+fixed_fps = 10
+transform_align = 3
+process_material = SubResource("ParticleProcessMaterial_abt0s")
+draw_pass_1 = SubResource("QuadMesh_qrff5")
+
+[connection signal="timeout" from="Timer" to="." method="queue_free"]

project/objects/enemies/enemy_wretched.tscn

@@ -6,7 +6,10 @@
 script/source = "extends EnemyWretched
 
 func _on_health_status_death() -> void:
-	queue_free();
+	%StateMachine.set_process(false)
+	$wretched/AnimationPlayer.play(\"death\")
+	$CollisionShape3D.disabled = true
+	set_movement_direction(Vector2())
 "
 
 [sub_resource type="CapsuleShape3D" id="CapsuleShape3D_ng1ul"]
@@ -20,9 +23,15 @@ script = SubResource("GDScript_qot2n")
 [node name="Hitbox" parent="wretched/Character/Skeleton3D" index="2" node_paths=PackedStringArray("health")]
 health = NodePath("../../../../HealthStatus")
 
+[node name="SpineAttach" parent="wretched/Character/Skeleton3D" index="3"]
+transform = Transform3D(1, -2.2202518e-16, 2.1910394e-16, 2.1910388e-16, 0.9999122, 0.013243958, -2.220252e-16, -0.01324396, 0.99991226, -4.1256417e-17, 1.1546816, -0.0027124756)
+
 [node name="Hitbox" parent="wretched/Character/Skeleton3D/SpineAttach" index="0" node_paths=PackedStringArray("health")]
 health = NodePath("../../../../../HealthStatus")
 
+[node name="HeadAttach" parent="wretched/Character/Skeleton3D" index="4"]
+transform = Transform3D(0.9999988, -0.0007823897, 0.0013344375, 0.0007271601, 0.99916273, 0.04089782, -0.0013653187, -0.040896803, 0.9991622, -1.3069549e-16, 1.5574794, -0.004068734)
+
 [node name="Hitbox" parent="wretched/Character/Skeleton3D/HeadAttach" index="0" node_paths=PackedStringArray("health")]
 health = NodePath("../../../../../HealthStatus")
 

project/objects/units/unit_4_wretched.tscn

@@ -8,10 +8,10 @@
 transform = Transform3D(-1, 0, -8.742278e-08, 0, 1, 0, 8.742278e-08, 0, -1, -1.1853347, 0.023195954, -0.8597343)
 
 [node name="EnemyWretched5" parent="." instance=ExtResource("1_l77gx")]
-transform = Transform3D(-1, 0, -8.742278e-08, 0, 1, 0, 8.742278e-08, 0, -1, 0.3304333, 0.023195954, 1.0620495)
+transform = Transform3D(-1, 0, -8.742278e-08, 0, 1, 0, 8.742278e-08, 0, -1, 0.30714047, 0.023195954, 0.58812845)
 
 [node name="EnemyWretched6" parent="." instance=ExtResource("1_l77gx")]
-transform = Transform3D(-1, 0, -8.742278e-08, 0, 1, 0, 8.742278e-08, 0, -1, 0.026455224, 0.023195954, -1.7789332)
+transform = Transform3D(-1, 0, -8.742278e-08, 0, 1, 0, 8.742278e-08, 0, -1, 0.05460906, 0.023195954, -1.4555124)
 
 [node name="EnemyWretched7" parent="." instance=ExtResource("1_l77gx")]
 transform = Transform3D(-1, 0, -8.742278e-08, 0, 1, 0, 8.742278e-08, 0, -1, 0.054681122, 0.023195954, -0.4100113)