57 lines
2.4 KiB
GDScript
57 lines
2.4 KiB
GDScript
extends KinematicBody2D
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export var swim_length = 150
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export var swim_cooldown = 1
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var destination # The position the fish will move to _on_SwimTimer_timeout()
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var poisoned = false # Used in Hazards/Poison/Poison.gd to determine if fish is dying of poison
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var poison_mutation = false # True when fish can eat and shoot poison pellets
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var pellets = 0 # Tracks the number of poison pellets eaten but not shot yet
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onready var mouth = $Positions/Mouth.position # Used for eating and shooting poison pellets
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onready var mouth_inhale = $Positions/MouthInhale.position # Used for eating poison pellets
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onready var tail = $Positions/Tail.position # Used for shooting poison pellets
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func _ready():
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$SwimTimer.wait_time = swim_cooldown
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func _on_SwimTimer_timeout() -> void:
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# Swim toward mouse
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destination = Vector2(move_toward(position.x, get_global_mouse_position().x, swim_length), move_toward(position.y, get_global_mouse_position().y, swim_length))
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$Tween.interpolate_property(self, "position", position, destination, 1, Tween.TRANS_CUBIC, Tween.EASE_IN_OUT)
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$Tween.start()
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func _process(delta: float) -> void:
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if destination:
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# Smoothly rotate Fish to face mouse
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var v = get_global_mouse_position() - global_position
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var angle = v.angle() + deg2rad(270)
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if rad2deg(angle) < 180 or rad2deg(angle) > 360:
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$Sprite.flip_v = true
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else:
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$Sprite.flip_v = false
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var rotation_speed = PI * 0.75 # PI = 180 degrees
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var angle_delta = rotation_speed * delta
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angle = lerp_angle(global_rotation, angle + 1.57, 1.0)
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angle = clamp(angle, global_rotation - angle_delta, global_rotation + angle_delta)
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global_rotation = angle
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func fire_pellet() -> void:
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var velocity = 4
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#pellets = 1 # This is just hax so we don't have to eat pellets first to fire them
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if pellets > 0: # But usually we require fish to eat pellets before he shoots them
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var poison_scene = load("res://Hazards/Poison/Poison.tscn")
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var poison = poison_scene.instance()
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poison.friendly = true # This will prevent the fish from auto-eating it the second it spawns
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get_parent().add_child(poison) # We add this projectile to the /tank/ so they don't move with the fish
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poison.position = $Positions/Tail.get_global_position() # 'position' returns the local position, but we need where it's at in relation to the tank
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poison.apply_central_impulse(velocity * ($Positions/Tail.get_global_position() - $Positions/Mouth.get_global_position()))
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pellets -= 1
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func kill(cause: String) -> void:
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queue_free()
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