Premier commit

2026-09-01 22:41:37 +02:00
commit 7cff988739
133 changed files with 6412 additions and 0 deletions
@@ -0,0 +1,143 @@
+extends Node
+class_name AlienHordeManager
+
+const CALCULATE_TARGET_FREQUENCY = 10
+const CALCULATE_DIRECTION_FREQUENCY = 10
+const CALCULATE_SCATTER_FREQUENCY = 5
+const CALCULATE_STATE_FREQUENCY = 5
+const ATTACK_DISTANCE = 10.
+const MECHA_ATTACK_DISTANCE = 5.
+const MAX_ALIEN_MECHA_AGGRO_DISTANCE = 100
+const ALIEN_RANDOM_SCALE = 0.3
+const MASTODONT_CHANCE = 0.01
+const MASTODONT_SCALE_FACTOR = 4.
+
+@export var hex_map : HexMap
+@export var mecha : Mecha
+
+@onready var multimeshes : Array[MultiMeshInstance3D] = [
+    %RunningAlienMultiMesh,
+    %AttackingAlienMultiMesh
+]
+@onready var targets : Array = hex_map.get_all_tiles_with_id("House")
+
+var current_frame : int = 0
+
+var alien_id_acc : int = 0
+
+var aliens : Array[Alien] = []
+
+func _physics_process(delta):
+    current_frame += 1
+
+    for t in targets:
+        if t is HouseHexTile:
+            if t.destroyed:
+                targets.erase(t)
+
+    # if current_frame % CALCULATE_CLUSTERS_FREQUENCY == 0:
+    #     calculate_clusters()
+
+    calculate_target()
+    calculate_state()
+    update_horde(delta)
+    spawn_models(delta)
+
+func spawn_alien(position : Vector3, rotation: float) -> Alien:
+    var alien : Alien = Alien.new()
+    alien.id = alien_id_acc
+    alien.position = position
+    alien.rotation.y = rotation
+    var is_mastodont = randf() < MASTODONT_CHANCE
+    alien.size = randf_range(1. - ALIEN_RANDOM_SCALE, 1. + ALIEN_RANDOM_SCALE) * (MASTODONT_SCALE_FACTOR if is_mastodont else 1.)
+    alien.scale = Vector3.ONE * alien.size
+
+    add_child(alien)
+
+    aliens.append(alien)
+
+    alien.died.connect(
+        func(): 
+            aliens.erase(alien)
+    )
+
+
+    alien_id_acc += 1
+
+    return alien
+
+func calculate_target():
+    for alien in aliens:
+        if (current_frame + alien.id)%CALCULATE_TARGET_FREQUENCY and alien.state != Alien.State.DEAD :
+            if (
+                len(targets) == 0
+                or mecha.position.distance_to(alien.position) < alien.get_random().randf_range(0., MAX_ALIEN_MECHA_AGGRO_DISTANCE)
+            ):
+                alien.target = mecha
+            else :
+                var old_target = alien.target
+                alien.target = targets[alien.get_random().randi() % len(targets)]
+                if old_target != alien.target:
+                    alien.state = Alien.State.RUNNING
+            
+
+func calculate_state():
+    for alien in aliens:
+        if (current_frame + alien.id)%CALCULATE_STATE_FREQUENCY and alien.state != Alien.State.DEAD and alien.target:
+            var target_attack_distance = MECHA_ATTACK_DISTANCE if alien.target is Mecha else ATTACK_DISTANCE
+            alien.state = (
+                Alien.State.RUNNING if alien.target.position.distance_to(alien.position) > target_attack_distance
+                else Alien.State.ATTACKING
+            )
+
+func update_horde(delta):
+    for alien in aliens:
+        match alien.state:
+            Alien.State.RUNNING:
+                alien.move(
+                    delta,
+                    (current_frame + alien.id)%CALCULATE_DIRECTION_FREQUENCY,
+                    (current_frame + alien.id)%CALCULATE_SCATTER_FREQUENCY
+                )                
+            Alien.State.ATTACKING:
+                alien.attack_target(delta)
+
+func alien_to_multimesh_id(alien : Alien) -> int:
+    match alien.state:
+        Alien.State.RUNNING:
+            return 0
+        Alien.State.ATTACKING:
+            return 1
+        _: return -1
+
+func spawn_models(delta):
+    
+    for m_id in range(len(multimeshes)):
+        var multimesh = multimeshes[m_id].multimesh
+
+        multimesh.instance_count = len(aliens)
+
+        for i in range(len(aliens)):
+            var alien = aliens[i]
+            var is_current = m_id == alien_to_multimesh_id(alien)
+
+            multimesh.set_instance_transform(
+                i,
+                alien.transform.scaled(Vector3.ONE if is_current else Vector3.ZERO)
+            )
+
+            if alien.damage_effect_last > 0:
+                alien.damage_effect_last -= delta
+
+            multimesh.set_instance_custom_data(
+                i,
+                Color(
+                    alien.id,
+                    alien.damage_effect_last > 0,
+                    alien.size,
+                    0
+                ))
+            multimesh.set_instance_color(i ,Color(alien.get_random().randi()%255,alien.get_random().randi()%255,alien.get_random().randi()%255))
+
+func is_alien_alive(alien):
+    return alien and alien is Alien and alien.hp > 0
@@ -0,0 +1 @@
+uid://bsiixctjr7ml4
@@ -0,0 +1,28 @@
+[gd_scene format=3 uid="uid://brr2idsr7qmpf"]
+
+[ext_resource type="ArrayMesh" uid="uid://cgv8clg8y80on" path="res://entities/alien/assets/vat/running_alien_vat/alien_mesh.tres" id="1_0bggl"]
+[ext_resource type="Script" uid="uid://bsiixctjr7ml4" path="res://entities/alien/alien_horde_manager/alien_horde_manager.gd" id="1_hjbcl"]
+[ext_resource type="ArrayMesh" uid="uid://chhggu10sxmuc" path="res://entities/alien/assets/vat/attacking_alien_vat/alien_mesh.tres" id="2_hjbcl"]
+
+[sub_resource type="MultiMesh" id="MultiMesh_33mok"]
+transform_format = 1
+use_colors = true
+use_custom_data = true
+mesh = ExtResource("2_hjbcl")
+
+[sub_resource type="MultiMesh" id="MultiMesh_tj3hn"]
+transform_format = 1
+use_colors = true
+use_custom_data = true
+mesh = ExtResource("1_0bggl")
+
+[node name="AlienHordeManager" type="Node" unique_id=1604717993]
+script = ExtResource("1_hjbcl")
+
+[node name="AttackingAlienMultiMesh" type="MultiMeshInstance3D" parent="." unique_id=1055420147]
+unique_name_in_owner = true
+multimesh = SubResource("MultiMesh_33mok")
+
+[node name="RunningAlienMultiMesh" type="MultiMeshInstance3D" parent="." unique_id=245629817]
+unique_name_in_owner = true
+multimesh = SubResource("MultiMesh_tj3hn")