ft: predator mostly done

evolve-die-repeat/molecular/predator/hammerhead_predator.gd

@@ -1,14 +1,18 @@
 extends AbstractPredator2D
 
-# TODO: attacking logic + behaviour
-# TODO: movement is buged (seems to not move/teleport somewhat
+# FIXME: (general) tracking across wrapping boundary
 # TODO: mirroring (thought, extracct that to general function/resource?
 
-@onready var sprite = $AnimatedSprite2D
-@onready var fsm = $StateMachine
-
-@export var speed = 0.8
+var can_attack: bool = true
 var desired_rotation: float = self.rotation
+@onready var sprite = $AnimatedSprite2D
+@onready var fsm: StateMachine = $StateMachine
+@onready var attack_cooldown_timer: Timer = $AttackCooldownTimer
+
+@export var damage: int = 15
+@export var attack_range = 20
+@export var sight_range = 200
+@export var speed = 0.8
 
 func _ready() -> void:
 	health = maxHealth
@@ -24,7 +28,7 @@ func _process(delta: float) -> void:
 func _physics_process(delta: float) -> void:
 	pass
 
-# FIXME: (also goes for prey) this is framerate dependent
+# FIXME: (also goes for prey) this is framerate dependent UNLESS called from a _physics function.
 func move(motion: Vector3, mod: float = 1.0) -> void:
 	move_and_collide(Vector2(motion.x, motion.y).normalized() * self.speed * mod)  # Moves along the given vector
 	self.desired_rotation = atan2(motion.y, motion.x)	
@@ -32,7 +36,45 @@ func move(motion: Vector3, mod: float = 1.0) -> void:
 	# Apply boundary to new position
 	position = GameManager.get_boundaried_position(position)
 
+func try_attack(target: Node) -> void:
+	if not can_attack:
+		return
+	attack(target)
+	
+func attack(target: Node) -> void:
+	can_attack = false
+	var hit_hittable = false
+	if target.is_in_group("prey") or target.is_in_group("player"):
+		if target.has_method("handle_damage"):
+			target.handle_damage(damage, self)
+			hit_hittable = true
+	elif target.is_in_group("resources"):
+		# TODO: resource handling logic
+		pass
+	if hit_hittable:
+		attack_cooldown_timer.start()
+	
+	
+func handle_damage(dmg: int, src: Node) -> void:
+	health = max(0, health-dmg)
+	if health == 0:
+		die()
+	if health < maxHealth/2:
+		become_injured()
+		fsm.transition_to_next_state(fsm.States.FLEEING, {"threat": src})
+	elif health < maxHealth:
+		become_injured()
+		fsm.transition_to_next_state(fsm.States.HUNTING, {"target": src})
+	
+func die() -> void:
+	super.die()
+
+func become_injured() -> void:
+	sprite.play("Hurt")
 
 func _on_sight_body_entered(body: Node2D) -> void:
-	if body.is_in_group("prey") or (health < maxHealth and body.is_in_group("player")):
+	if fsm.map(fsm.state) != fsm.States.HUNTING and body.is_in_group("prey") or (health < maxHealth and body.is_in_group("player")):
 		fsm.transition_to_next_state(fsm.States.HUNTING, {"target": body})
+
+func _on_attack_cooldown_timer_timeout() -> void:
+	can_attack = true