91 lines
3.1 KiB
GDScript
91 lines
3.1 KiB
GDScript
extends CharacterBody2D
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# TODO: rewrite NPC to use state machine
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# TODO: create class_name which is used to inherit common attributes to mainship and npc ship
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class_name NPCShip
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@export var destination_timer : Timer
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@export var faction = "Enemy"
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@export var bounty_min : int = 20
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@export var bounty_max : int = 30
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@export var bounty : PackedScene
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@onready var ship = get_tree().current_scene.get_node("MainShip")
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@onready var engine = $"Engine"
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@onready var hull = $"Hull"
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@onready var debug_label = $DebugLabel
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@onready var target_snap = $TargetSnap
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@onready var healthbar = $Zalupa/ZalupaTwo/Health
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@onready var shield = $Shield
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var state = "idle"
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var shooting = false
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var allow_shooting = true
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signal destroyed
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func _ready():
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destination_timer.timeout.connect(switchdestination)
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target_snap.mouse_entered.connect(get_tree().current_scene.addtargetlist.bind(self))
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target_snap.mouse_exited.connect(get_tree().current_scene.removetargetlist.bind(self))
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destroyed.connect(get_tree().current_scene.enemydestroyed)
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shield.material = material
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material.set_shader_parameter("color",modulate)
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func _physics_process(_delta):
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match state:
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"idle":
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idlestate()
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"chase":
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chasestate()
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"maintaindistance":
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maintaindistancestate()
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"runaway":
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runawaystate()
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var format = {"HP" : "%0.2f" % hull.hp, "SC" : "%0.2f" % shield.capacity}
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healthbar.text = "{HP} HS + {SC} SC".format(format)
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if hull.hp <= 0:
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destroy()
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if Vector2.ZERO.distance_to(global_position) > 5800:
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destroy(true)
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func switchdestination():
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engine.destination_angle = randi_range(0, 360)
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func idlestate():
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shooting = false
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if global_position.distance_to(ship.global_position) <= 512 and ship.allow_shooting:
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state = "chase"
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func chasestate():
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engine.destination_angle = rad_to_deg(global_position.angle_to_point(ship.global_position))
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shooting = true if abs(engine.destination_difference) <= 5 else false
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if global_position.distance_to(ship.global_position) > 512 or !ship.allow_shooting:
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state = "idle"
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if hull.hp < hull.max_hp * 0.2: state = "runaway"
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if global_position.distance_to(ship.global_position) <= 128:
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state = "maintaindistance"
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func maintaindistancestate():
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engine.destination_angle += 1
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shooting = true if abs(engine.destination_difference) <= 5 else false
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if global_position.distance_to(ship.global_position) > 128:
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state = "chase"
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if !ship.allow_shooting:
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state = "idle"
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func runawaystate():
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shooting = false
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engine.destination_angle = rad_to_deg(global_position.angle_to_point(ship.global_position)) - 180
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if global_position.distance_to(ship.global_position) > 1024 or !ship.allow_shooting:
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state = "idle"
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func destroy(silent : bool = false):
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hull.hp = hull.max_hp
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hull.fuel = hull.max_fuel
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shield.capacity = shield.max_capacity
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state = "idle"
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var bounty_inst = bounty.instantiate()
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get_tree().current_scene.add_child(bounty_inst)
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bounty_inst.global_position = global_position
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bounty_inst.amount = randi_range(bounty_min, bounty_max)
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bounty_inst.text.text = str(bounty_inst.amount) + " MU"
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global_position = Vector2(randi_range(-4096, 4096), randi_range(-4096, 4096))
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if !silent:
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destroyed.emit(self)
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