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46 lines
1.6 KiB
GDScript
46 lines
1.6 KiB
GDScript
## A fuzzer that generates random Vector2 values within a specified rectangular range.[br]
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##
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## This is particularly useful for testing 2D physics, movement
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## systems, UI positioning, sprite coordinates, or any code that processes 2D vectors.[br]
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##
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## The fuzzer generates vectors where each component (x, y) is independently randomized
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## within its respective range, creating a uniform distribution over the rectangular area.[br]
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##
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## [b]Usage example:[/b]
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## [codeblock]
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## # Test 2D movement within screen bounds
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## func test_movement(fuzzer := Vector2Fuzzer.new(Vector2.ZERO, Vector2(1920, 1080)), _fuzzer_iterations := 200) -> void:
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## var position := fuzzer.next_value()
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## player.set_position(position)
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##
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## [/codeblock]
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class_name Vector2Fuzzer
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extends Fuzzer
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## Minimum bounds for the generated vectors (inclusive for both x and y).
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var _from: Vector2
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## Maximum bounds for the generated vectors (inclusive for both x and y).
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var _to: Vector2
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func _init(from: Vector2, to: Vector2) -> void:
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assert(from <= to, "Invalid range!")
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_from = from
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_to = to
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## Generates a random Vector2 within the configured rectangular range.[br]
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##
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## Returns a Vector2 where each component is independently randomized:[br]
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## - x: random float between [code]_from.x[/code] and [code]_to.x[/code][br]
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## - y: random float between [code]_from.y[/code] and [code]_to.y[/code][br]
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##
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## The distribution is uniform over the rectangular area defined by the bounds.[br]
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##
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## @returns A random Vector2 within the specified range.
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func next_value() -> Vector2:
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var x := randf_range(_from.x, _to.x)
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var y := randf_range(_from.y, _to.y)
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return Vector2(x, y)
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