62 lines
1.5 KiB
GDScript
62 lines
1.5 KiB
GDScript
@tool
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class_name Conveyor extends Node2D
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const GAP = 8.0
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const SPEED = 0.0041 # ~ the targeted physics tick time
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@export var conveyor_segments: int = 20:
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set(v):
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conveyor_segments = v
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create_segments()
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get:
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return conveyor_segments
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@export var speed_mult: float = 20.0
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var conveyor_seg_scn = preload("uid://be7ki66sskav5")
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var segments_top: Array[Node2D] = []
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var segments_bottom: Array[Node2D] = []
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func create_segments():
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for c in self.get_children():
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c.call_deferred("queue_free")
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segments_top = []
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segments_bottom = []
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# top
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for i in range(0, conveyor_segments + 1):
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var c = conveyor_seg_scn.instantiate()
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c.position.x = i*8.0
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self.segments_top.append(c)
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self.add_child(c)
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# bottom
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for i in range(0, conveyor_segments + 1):
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var c = conveyor_seg_scn.instantiate()
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c.position.x = i*8.0
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c.position.y = 5.0
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self.segments_bottom.append(c)
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self.add_child(c)
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func _ready() -> void:
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create_segments()
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func _process(_delta: float) -> void:
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if Engine.is_editor_hint():
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return
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# make it NOT framerate-depedent bc this would fuck up the positioning over time
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var s = sign(speed_mult)
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for p in segments_top:
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if s > 0.0:
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if p.position.x > conveyor_segments * GAP:
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p.position.x = 0.0
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else:
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if p.position.x < 0.0:
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p.position.x = conveyor_segments * GAP
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p.position.x += SPEED * speed_mult
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for p in segments_bottom:
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if s > 0.0:
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if p.position.x < 0.0:
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p.position.x = conveyor_segments * GAP
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else:
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if p.position.x > conveyor_segments * GAP:
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p.position.x = 0.0
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p.position.x -= SPEED * speed_mult
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