34 lines
880 B
GDScript
34 lines
880 B
GDScript
@tool
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extends Node2D
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const sample_hold = preload ("res://lib/utils/sample_hold.gd")
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var data = PackedVector2Array()
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var result: PackedFloat32Array
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func _ready():
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for i in range(0, 44100):
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var value = sin(i * 2 * PI / 44100.0)
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data.push_back(Vector2(value, value))
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result = sample_hold.sample_and_hold(data, 44100.0 / 16000.0 * 1.5)
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func _draw():
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var size = get_viewport().get_visible_rect().size
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size.x *= 10
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size.y *= 4
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var center = size / 2
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draw_line(Vector2(0, size.y / 2), Vector2(size.x, size.y / 2), Color(1, 1, 1))
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for i in range(0, data.size()):
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var value = data[i]
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var x = i * (size.x / data.size())
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draw_line(Vector2(x, 0), Vector2(x, value.x * center.y), Color(1, 0, 0))
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for i in range(0, result.size()):
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var value = result[i]
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var x = i * (size.x / result.size())
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draw_line(Vector2(x, 0), Vector2(x, value * center.y), Color(0, 1, 0)) |