154 lines
3.7 KiB
GDScript
154 lines
3.7 KiB
GDScript
extends KinematicBody2D
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# external settings
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# Skip was here
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export var swim_speed: float = 30.0
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export var swim_up_down_variance = 0.75
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# variables
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var velocity = Vector2()
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var dropping := true
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var turningright := false
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var turningleft := false
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var nearest_food : Node
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var hungry := true
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var canseefood := false
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func _ready() -> void:
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randomize() # generate random seed to randomize each fish
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# SETTINGS
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var swim_speed_variance = 0.25
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# CONNECT SIGNAL
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var edgeL = get_tree().get_root().find_node("TankEdgeL", true, false)
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edgeL.connect("edgehit", self, "handle_edgehit")
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var edgeR = get_tree().get_root().find_node("TankEdgeR", true, false)
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edgeR.connect("edgehit", self, "handle_edgehit")
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# ACTUAL CODE
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swim_speed = swim_speed * (1 + rand_range(-swim_speed_variance, swim_speed_variance)) # give the fish a random speed in range
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$DropTimer.wait_time = rand_range(0.5,2) # drop the fish to a random depth in range
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$AnimatedSprite.play()
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if randf() >= 0.5:
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$AnimatedSprite.animation = "left"
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else:
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$AnimatedSprite.animation = "right"
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func handle_edgehit(action: String):
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if action == "turn right":
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turningright = true
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elif action == "turn left":
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turningleft = true
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func _process(delta: float) -> void:
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#print(velocity)
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if dropping:
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velocity = Vector2(0,175)
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if get_tree().get_nodes_in_group("Food").size() > 0:
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canseefood = true
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nearest_food = find_nearest_food()
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# $Line2D.set_point_position(1, nearest_food.get_global_position() - get_global_position())
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else:
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canseefood = false
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if hungry and canseefood:
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velocity = position.direction_to(nearest_food.get_global_position()) * 100 # idk why i need to x100 this but i do
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# THIS ALWAYS CONTROLS WHERE THE FISH IS MOVING
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move_and_slide(velocity)
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# func _on_Vision_body_entered(body: Node) -> void:
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# if body.is_in_group("Food"):
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# print("Yummy! I see some food!")
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# var hungry: bool
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# var angle_toward_food: float
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# if hungry:
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# angle_toward_food = get_angle(me, nearest_food)
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# natural_movement_angle = random(-15, 15)
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# natural_movement = angle_toward_food + natural_movement_angle
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#
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# random_speed = random(0, 5) + 3
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#
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# move_and_slide(vector2(random_speed, natural_movement))
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func _on_SwimTimer_timeout() -> void:
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if not canseefood:
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var direction = randf()
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var swimdirection = 0
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if direction >= .75 or turningright:
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swimdirection = 1
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$AnimatedSprite.animation = "right"
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turningright = false
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if direction <= .25 or turningleft:
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swimdirection = -1
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$AnimatedSprite.animation = "left"
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turningleft = false
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velocity = Vector2(1, rand_range(-swim_up_down_variance, swim_up_down_variance))
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velocity = velocity * swim_speed * swimdirection
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# rotate correctly for both directions & sprite animations
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$AnimatedSprite.rotation = Vector2(0,0).angle_to_point(velocity) + deg2rad(90 * (swimdirection + 1) * swimdirection)
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func _on_DropTimer_timeout():
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dropping = false
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# identify and record the nearest food
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func find_nearest_food() -> Node:
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var all_food = get_tree().get_nodes_in_group("Food")
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if get_tree().get_nodes_in_group("Food").size() > 0:
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nearest_food = all_food[0] # assume the first food is closest
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# look through spawn nodes to see if any are closer
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for food in all_food:
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if food.global_position.distance_to(global_position) < nearest_food.global_position.distance_to(global_position):
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nearest_food = food
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return nearest_food
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else:
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return null
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func _on_FishHitbox_body_entered(body: Node) -> void:
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if body.is_in_group("Food") and hungry:
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body.queue_free()
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hungry = false
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$HungerTimer.start()
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func _on_HungerTimer_timeout():
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if hungry:
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queue_free()
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else:
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hungry = true
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