Instanciate a ball

Make the enemy throw a ball. It just instanciate a ball in the scene but
does not move it.

scenes/ball.tscn

@@ -0,0 +1,15 @@
+[gd_scene load_steps=3 format=3 uid="uid://cy0ko2cawudia"]
+
+[ext_resource type="Texture2D" uid="uid://dl8qfp3u18nkx" path="res://art/pilko.png" id="1_20u67"]
+
+[sub_resource type="CircleShape2D" id="CircleShape2D_srlvs"]
+radius = 5.0
+
+[node name="Ball" type="Area2D"]
+z_index = 1
+
+[node name="Sprite2D" type="Sprite2D" parent="."]
+texture = ExtResource("1_20u67")
+
+[node name="CollisionShape2D" type="CollisionShape2D" parent="."]
+shape = SubResource("CircleShape2D_srlvs")

scenes/enemy.tscn

@@ -1,50 +1,13 @@
-[gd_scene load_steps=10 format=3 uid="uid://bktg1ypaav3q3"]
+[gd_scene load_steps=12 format=3 uid="uid://bktg1ypaav3q3"]
 
 [ext_resource type="Texture2D" uid="uid://bbwsdd0jddmck" path="res://art/Pink_Monster_Walk_6.png" id="1_e5603"]
 [ext_resource type="Script" path="res://scripts/enemy.gd" id="1_l5lyv"]
 [ext_resource type="Texture2D" uid="uid://dylr4xf3far68" path="res://art/Pink_Monster_Idle_4.png" id="2_duxxr"]
+[ext_resource type="Texture2D" uid="uid://bydnrc6ixlv8w" path="res://art/Pink_Monster_Throw_4.png" id="2_iscwr"]
 [ext_resource type="PackedScene" uid="uid://b51tdt5kunai" path="res://scenes/enemy_behavior_tree.tscn" id="3_jk76t"]
 
-[sub_resource type="Animation" id="Animation_etqki"]
-resource_name = "walk"
-length = 0.6
-loop_mode = 1
-tracks/0/type = "value"
-tracks/0/imported = false
-tracks/0/enabled = true
-tracks/0/path = NodePath("Sprite2D:texture")
-tracks/0/interp = 1
-tracks/0/loop_wrap = true
-tracks/0/keys = {
-"times": PackedFloat32Array(0),
-"transitions": PackedFloat32Array(1),
-"update": 1,
-"values": [ExtResource("1_e5603")]
-}
-tracks/1/type = "value"
-tracks/1/imported = false
-tracks/1/enabled = true
-tracks/1/path = NodePath("Sprite2D:hframes")
-tracks/1/interp = 1
-tracks/1/loop_wrap = true
-tracks/1/keys = {
-"times": PackedFloat32Array(0),
-"transitions": PackedFloat32Array(1),
-"update": 1,
-"values": [6]
-}
-tracks/2/type = "value"
-tracks/2/imported = false
-tracks/2/enabled = true
-tracks/2/path = NodePath("Sprite2D:frame")
-tracks/2/interp = 1
-tracks/2/loop_wrap = true
-tracks/2/keys = {
-"times": PackedFloat32Array(0, 0.1, 0.2, 0.3, 0.4, 0.5),
-"transitions": PackedFloat32Array(1, 1, 1, 1, 1, 1),
-"update": 1,
-"values": [0, 1, 2, 3, 4, 5]
-}
+[sub_resource type="Animation" id="Animation_ouyrp"]
+length = 0.001
 
 [sub_resource type="Animation" id="Animation_6vdwd"]
 resource_name = "idle"
@@ -87,25 +50,92 @@ tracks/2/keys = {
 "values": [0, 1, 2, 3]
 }
 
-[sub_resource type="Animation" id="Animation_ouyrp"]
-length = 0.001
+[sub_resource type="Animation" id="Animation_etqki"]
+resource_name = "walk"
+length = 0.6
+loop_mode = 1
 tracks/0/type = "value"
 tracks/0/imported = false
 tracks/0/enabled = true
-tracks/0/path = NodePath("Sprite2D:frame")
+tracks/0/path = NodePath("Sprite2D:texture")
 tracks/0/interp = 1
 tracks/0/loop_wrap = true
 tracks/0/keys = {
 "times": PackedFloat32Array(0),
 "transitions": PackedFloat32Array(1),
 "update": 1,
-"values": [0]
+"values": [ExtResource("1_e5603")]
+}
+tracks/1/type = "value"
+tracks/1/imported = false
+tracks/1/enabled = true
+tracks/1/path = NodePath("Sprite2D:hframes")
+tracks/1/interp = 1
+tracks/1/loop_wrap = true
+tracks/1/keys = {
+"times": PackedFloat32Array(0),
+"transitions": PackedFloat32Array(1),
+"update": 1,
+"values": [6]
+}
+tracks/2/type = "value"
+tracks/2/imported = false
+tracks/2/enabled = true
+tracks/2/path = NodePath("Sprite2D:frame")
+tracks/2/interp = 1
+tracks/2/loop_wrap = true
+tracks/2/keys = {
+"times": PackedFloat32Array(0, 0.1, 0.2, 0.3, 0.4, 0.5),
+"transitions": PackedFloat32Array(1, 1, 1, 1, 1, 1),
+"update": 1,
+"values": [0, 1, 2, 3, 4, 5]
+}
+
+[sub_resource type="Animation" id="Animation_jt5bg"]
+resource_name = "throw"
+length = 0.4
+tracks/0/type = "value"
+tracks/0/imported = false
+tracks/0/enabled = true
+tracks/0/path = NodePath("Sprite2D:texture")
+tracks/0/interp = 1
+tracks/0/loop_wrap = true
+tracks/0/keys = {
+"times": PackedFloat32Array(0),
+"transitions": PackedFloat32Array(1),
+"update": 1,
+"values": [ExtResource("2_iscwr")]
+}
+tracks/1/type = "value"
+tracks/1/imported = false
+tracks/1/enabled = true
+tracks/1/path = NodePath("Sprite2D:hframes")
+tracks/1/interp = 1
+tracks/1/loop_wrap = true
+tracks/1/keys = {
+"times": PackedFloat32Array(0),
+"transitions": PackedFloat32Array(1),
+"update": 1,
+"values": [4]
+}
+tracks/2/type = "value"
+tracks/2/imported = false
+tracks/2/enabled = true
+tracks/2/path = NodePath("Sprite2D:frame")
+tracks/2/interp = 1
+tracks/2/loop_wrap = true
+tracks/2/keys = {
+"times": PackedFloat32Array(0, 0.1, 0.2, 0.3),
+"transitions": PackedFloat32Array(1, 1, 1, 1),
+"update": 1,
+"values": [0, 1, 2, 3]
 }
 
 [sub_resource type="AnimationLibrary" id="AnimationLibrary_gnukq"]
 _data = {
 "RESET": SubResource("Animation_ouyrp"),
 "idle": SubResource("Animation_6vdwd"),
+"throw": SubResource("Animation_jt5bg"),
 "walk": SubResource("Animation_etqki")
 }
 
@@ -117,7 +147,7 @@ script = ExtResource("1_l5lyv")
 
 [node name="Sprite2D" type="Sprite2D" parent="."]
 position = Vector2(0, -16)
-texture = ExtResource("2_duxxr")
+texture = ExtResource("2_iscwr")
 flip_h = true
 hframes = 4
 

scenes/enemy_behavior_tree.tscn

@@ -1,4 +1,4 @@
-[gd_scene load_steps=10 format=3 uid="uid://b51tdt5kunai"]
+[gd_scene load_steps=12 format=3 uid="uid://b51tdt5kunai"]
 
 [ext_resource type="Script" path="res://addons/beehave/nodes/beehave_tree.gd" id="1_b2pc4"]
 [ext_resource type="Script" path="res://addons/beehave/nodes/composites/sequence.gd" id="2_80fm4"]
@@ -8,7 +8,9 @@
 [ext_resource type="Script" path="res://scripts/can_wait_condition.gd" id="4_x5ium"]
 [ext_resource type="Script" path="res://addons/beehave/nodes/decorators/time_limiter.gd" id="5_012bh"]
 [ext_resource type="Script" path="res://scripts/wait_action.gd" id="5_xel2n"]
+[ext_resource type="Script" path="res://scripts/can_throw_ball_condition.gd" id="7_qj5mg"]
 [ext_resource type="Script" path="res://scripts/get_random_top_cell_action.gd" id="7_uo3i6"]
+[ext_resource type="Script" path="res://scripts/throw_ball_action.gd" id="8_sunpr"]
 
 [node name="EnemyBehaviorTree" type="Node"]
 script = ExtResource("1_b2pc4")
@@ -29,6 +31,15 @@ wait_time = 2.0
 [node name="Wait" type="Node" parent="MainSelector/WaitSequence/TimeLimiterDecorator"]
 script = ExtResource("5_xel2n")
 
+[node name="ThrowBallSequence" type="Node" parent="MainSelector"]
+script = ExtResource("2_80fm4")
+
+[node name="CanThrowBall" type="Node" parent="MainSelector/ThrowBallSequence"]
+script = ExtResource("7_qj5mg")
+
+[node name="ThrowBall" type="Node" parent="MainSelector/ThrowBallSequence"]
+script = ExtResource("8_sunpr")
+
 [node name="ReturnBallSequence" type="Node" parent="MainSelector"]
 script = ExtResource("2_80fm4")
 

scripts/can_throw_ball_condition.gd

@@ -0,0 +1,7 @@
+class_name CanThrowBallCondition
+extends ConditionLeaf
+
+func tick(actor, _blackboard):
+	if !actor.has_thrown_ball:
+		return SUCCESS
+	return FAILURE

scripts/enemy.gd

@@ -3,6 +3,8 @@ extends CharacterBody2D
 
 const Y_SPAWN_OFFSET = -8
 @export var speed = 80
+var has_thrown_ball = false
+var ball_scene = preload("res://scenes/ball.tscn")
 @onready var tile_map: TileMap = get_parent()
 @onready var animation_player = $AnimationPlayer
 @onready var sprite = $Sprite2D
@@ -11,3 +13,8 @@ func _ready():
 	var spawn_cell: Vector2i = tile_map.get_top_spawn_cell()
 	position = tile_map.map_to_local(spawn_cell)
 	position.y += Y_SPAWN_OFFSET
+
+func throw_ball():
+	var ball = ball_scene.instantiate()
+	ball.position = position
+	tile_map.add_child(ball)

scripts/throw_ball_action.gd

@@ -0,0 +1,25 @@
+class_name ThrowBallAction
+extends ActionLeaf
+
+var has_animation_finished = false
+
+func before_run(actor, _blackboard):
+	actor.animation_player.animation_finished.connect(_on_animation_finished)
+	actor.animation_player.speed_scale = 0.8
+
+func tick(actor, _blackboard):
+	actor.animation_player.play("throw")
+	
+	if !has_animation_finished:
+		return RUNNING
+	else:
+		actor.throw_ball()
+		actor.has_thrown_ball = true
+		return SUCCESS
+
+func after_run(actor, _blackboard):
+	actor.animation_player.play("idle")
+	actor.animation_player.speed_scale = 1
+
+func _on_animation_finished(_anim_name):
+	has_animation_finished = true

scripts/wait_action.gd

@@ -4,5 +4,5 @@ extends ActionLeaf
 func before_run(actor, _blackboard):
 	actor.animation_player.play("idle")
 
-func tick(actor, blackboard):
+func tick(_actor, _blackboard):
 	return RUNNING