Added kamikaze states and star system border (both don't working properly)

scenes/Ships/NPC Ships/kamikaze_ship.tscn

@@ -1,4 +1,4 @@
-[gd_scene load_steps=7 format=3 uid="uid://pev6k21vqaem"]
+[gd_scene load_steps=8 format=3 uid="uid://pev6k21vqaem"]
 
 [ext_resource type="Script" path="res://scripts/Ship/ship.gd" id="1_82bba"]
 [ext_resource type="PackedScene" uid="uid://bkd4gyhlota7l" path="res://scenes/Ships/Modules/Hulls/kamikaze_hull.tscn" id="2_165nu"]
@@ -6,6 +6,7 @@
 [ext_resource type="PackedScene" uid="uid://bunboi5ouscw8" path="res://scenes/Ships/Modules/Shields/shield.tscn" id="4_aos8x"]
 [ext_resource type="Script" path="res://scripts/State Machine/tree.gd" id="5_m8m3f"]
 [ext_resource type="Script" path="res://scripts/State Machine/Kamikaze/WanderingState.gd" id="6_emcj1"]
+[ext_resource type="Script" path="res://scripts/State Machine/Kamikaze/AttackState.gd" id="7_ilmkp"]
 
 [node name="KamikazeShip" type="Node2D"]
 script = ExtResource("1_82bba")
@@ -32,4 +33,7 @@ script = ExtResource("6_emcj1")
 [node name="UpdateDestination" type="Timer" parent="StateTree/WanderingState"]
 wait_time = 10.0
 
+[node name="AttackState" type="Node" parent="StateTree"]
+script = ExtResource("7_ilmkp")
+
 [connection signal="timeout" from="StateTree/WanderingState/UpdateDestination" to="StateTree/WanderingState" method="update_destination"]

scenes/Star Systems/star_system_debug.tscn

@@ -13,7 +13,10 @@ height = 16384
 scroll_offset = Vector2(681.667, 317.783)
 stars_amount = 4000
 
-[node name="Nebula" parent="Background" index="0" node_paths=PackedStringArray("tracked_node")]
+[node name="SystemBorder" parent="Background" index="0"]
+default_color = Color(1, 1, 1, 1)
+
+[node name="Nebula" parent="Background" index="1" node_paths=PackedStringArray("tracked_node")]
 tracked_node = NodePath("../../FactionPlayer/PlayerShip")
 color_background = Color(0.276474, 0.0962249, 0.200656, 1)
 

scenes/Star Systems/star_system_template.tscn

@@ -1,4 +1,4 @@
-[gd_scene load_steps=9 format=3 uid="uid://bsnrcw64qr2hr"]
+[gd_scene load_steps=10 format=3 uid="uid://bsnrcw64qr2hr"]
 
 [ext_resource type="Script" path="res://scripts/star_system.gd" id="1_xx8w2"]
 [ext_resource type="PackedScene" uid="uid://dpggye27ln436" path="res://scenes/Star Systems/Required Scenes/star_generator.tscn" id="2_iqrn0"]
@@ -21,6 +21,23 @@ func _ready():
 			text += \" beta\\nclosed beta\"
 "
 
+[sub_resource type="GDScript" id="GDScript_r38d8"]
+resource_name = "get_border_points"
+script/source = "extends Line2D
+
+@onready var star_system = get_parent().get_parent()
+
+func _ready():
+	var halved_width = star_system.width / 2
+	var halved_height = star_system.height / 2
+	points = [
+		Vector2(-halved_width + width, -halved_height + width),
+		Vector2(halved_width - width, -halved_height + width),
+		Vector2(halved_width - width, halved_height - width),
+		Vector2(-halved_width + width, halved_height - width)
+	]
+"
+
 [node name="StarSystem" type="Node"]
 process_mode = 3
 script = ExtResource("1_xx8w2")
@@ -48,6 +65,14 @@ script = SubResource("GDScript_4yoh5")
 process_mode = 1
 layer = -10
 
+[node name="SystemBorder" type="Line2D" parent="Background"]
+z_index = -99
+points = PackedVector2Array(0, 0, 1280, 0, 1280, 720, 0, 720)
+closed = true
+width = 8.0
+default_color = Color(1, 1, 1, 0.521569)
+script = SubResource("GDScript_r38d8")
+
 [node name="Nebula" type="ColorRect" parent="Background"]
 z_index = -100
 material = ExtResource("4_o0ld7")

scripts/State Machine/Kamikaze/AttackState.gd

@@ -0,0 +1,50 @@
+extends State
+
+## This amount of force will be applied if target can be stabbed
+@export var additional_stab_force: float = 200.0
+## If target is further than this distance, transit to WanderingState
+@export var target_loss_distance: float = 1536.0
+## Shortcut to get_parent().get_parent()
+@onready var ship = get_parent().get_parent()
+## Node which is being targeted by this ship
+var target: Node2D
+## Ship will strive to achieve this angle
+var destination_degrees: float = 0:
+	set(value):
+		if value > 180:
+			destination_degrees = value - 360
+		elif value < -180:
+			destination_degrees = 360 + value
+		else:
+			destination_degrees = value
+## Difference between current rotation and destination angle, in degrees. Sign determines torque direction.
+var current_destination_difference: float = 0:
+	set(value):
+		if value < 0:
+			current_destination_difference = 180 + value
+		if current_destination_difference > 180:
+			current_destination_difference = value - 180
+## Delta to destination_degrees
+var destination_difference: float = 5.0
+
+func enter(message: Dictionary):
+	if message.has("target"):
+		target = message["target"]
+	else:
+		get_parent().transit("WanderingState")
+
+func process(_delta):
+	# checking if need to apply torque
+	destination_degrees = rad_to_deg(ship.global_position.angle_to_point(target.global_position))
+	current_destination_difference = destination_degrees - ship.hull.global_rotation_degrees
+	var rotation_sign = sign(current_destination_difference)
+	if abs(current_destination_difference) > destination_difference:
+		ship.engine.rotation_axis = rotation_sign * (current_destination_difference / 180)
+	else:
+		ship.engine.rotation_axis = 0.0
+		ship.hull.apply_central_force(Vector2.from_angle(ship.hull.rotation) * additional_stab_force)
+	# making ship always accelerate
+	ship.engine.acceleration_axis = 1.0
+	var distance_to_target = ship.global_position.distance_to(target.global_position)
+	if distance_to_target > target_loss_distance:
+		get_parent().transit("WanderingState")

scripts/State Machine/Kamikaze/WanderingState.gd

@@ -1,9 +1,13 @@
 extends State
 
+## Shortcut to get_parent().get_parent()
 @onready var ship = get_parent().get_parent()
+## Shortcut to current scene
 @onready var star_system = get_tree().current_scene
-
+## Timer which randomizes destination
 @onready var update_timer = $UpdateDestination
+## Radius in which ship will transit to attack state
+@export var search_distance: float = 1024.0
 ## Ship will strive to achieve this angle
 var destination_degrees: float = 0:
 	set(value):
@@ -13,10 +17,19 @@ var destination_degrees: float = 0:
 			destination_degrees = 360 + value
 		else:
 			destination_degrees = value
+## Difference between current rotation and destination angle, in degrees. Sign determines torque direction.
+var current_destination_difference: float = 0:
+	set(value):
+		if value < 0:
+			current_destination_difference = 180 + value
+		if current_destination_difference > 180:
+			current_destination_difference = value - 180
 ## Delta to destination_degrees
 var destination_difference: float = 15.0
 ## available map bounds (use with absolute position)
 var available_bounds: Vector2
+# for testing purposes only
+var player_ship: PlayerShip = null
 
 func _ready():
 	available_bounds = Vector2(star_system.width / 2, star_system.height / 2)
@@ -24,16 +37,13 @@ func _ready():
 
 func enter(_message):
 	update_timer.start()
+	get_tree().create_timer(0.02).timeout.connect(get_player_ship)
 	update_destination()
 
 func process(_delta):
 	# checking if need to apply torque
-	var current_destination_difference = destination_degrees - ship.hull.global_rotation_degrees
+	current_destination_difference = destination_degrees - ship.hull.global_rotation_degrees
 	var rotation_sign = sign(current_destination_difference)
-	if current_destination_difference < 0:
-		current_destination_difference = 180 - current_destination_difference
-	if current_destination_difference > 180:
-		current_destination_difference -= 180
 	if abs(current_destination_difference) > destination_difference:
 		ship.engine.rotation_axis = rotation_sign * (current_destination_difference / 180)
 	else:
@@ -43,6 +53,13 @@ func process(_delta):
 	# if ship is out of star system bounds, set destination angle to center
 	if abs(ship.global_position.x) > available_bounds.x or abs(ship.global_position.y) > available_bounds.y:
 		destination_degrees = rad_to_deg(ship.global_position.angle_to_point(Vector2.ZERO))
+	# if distance to player is less than scan radius
+	# TODO: rewrite this to more complex behavior
+	if player_ship != null:
+		var distance_to_player = ship.global_position.distance_to(player_ship.position)
+		if distance_to_player <= search_distance:
+			get_parent().transit("AttackState", {"target": player_ship})
+		
 
 func exit():
 	update_timer.stop()
@@ -50,3 +67,6 @@ func exit():
 ## Set new random direction
 func update_destination():
 	destination_degrees += randi_range(-180, 180)
+
+func get_player_ship():
+	player_ship = star_system.player_ship

scripts/star_system.gd

@@ -16,7 +16,7 @@ var player_ship: PlayerShip
 var pause_controller: Control
 
 func _ready():
-	player_ship = get_node_or_null("PlayerShip")
+	player_ship = get_node_or_null("FactionPlayer/PlayerShip")
 	
 	pause_controller = pause_controller_scene.instantiate()