107 lines
2.0 KiB
GDScript
107 lines
2.0 KiB
GDScript
class_name BrushPrefabs
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const list = [
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[ Vector2(0, -1),
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Vector2(-1, 0), Vector2(0, 0), Vector2(1, 0),
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Vector2(0, 1)
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],
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[Vector2(-1, -1), Vector2(0, -1), Vector2(1, -1),
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Vector2(-1, 0), Vector2(0, 0), Vector2(1, 0),
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Vector2(-1, 1), Vector2(0, 1), Vector2(1, 1),
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],
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[
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Vector2(-1, 0), Vector2(0, 0), Vector2(1, 0),
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],
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[ Vector2(0, -1),
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Vector2(0, 0),
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Vector2(0, 1)
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]
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]
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enum Type {
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V_LINE,
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H_LINE,
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RECT,
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CIRCLE,
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}
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static func get_brush(type, size: int):
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var pixels = []
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if size < 1:
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size = 1
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match type:
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Type.CIRCLE:
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size += 1
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var center = Vector2.ZERO
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var last = center
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var radius = size / 2.0
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for x in range(size):
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for y in range(size):
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if Vector2(x - radius, y - radius).length() < size / 3.0:
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pixels.append(Vector2(x, y))
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var avg = Vector2(size / 2, size / 2)
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avg = Vector2(floor(avg.x), floor(avg.y))
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for i in range(pixels.size()):
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pixels[i] -= avg
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Type.RECT:
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var center = Vector2.ZERO
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var last = center
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for x in range(size):
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for y in range(size):
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pixels.append(Vector2(x, y))
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var avg = Vector2.ZERO
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for cell in pixels:
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avg += cell
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avg.x /= pixels.size()
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avg.y /= pixels.size()
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avg = Vector2(floor(avg.x), floor(avg.y))
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for i in range(pixels.size()):
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pixels[i] -= avg
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Type.V_LINE:
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var center = Vector2.ZERO
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var last = center
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pixels.append(Vector2.ZERO)
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for i in range(size - 1):
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var sig = sign(last.y)
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if sig == 0:
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sig = 1
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if last.y < 0:
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center.y = abs(last.y) * -sig
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else:
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center.y = abs(last.y+1) * -sig
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last = center
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pixels.append(center)
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Type.H_LINE:
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var center = Vector2.ZERO
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var last = center
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pixels.append(Vector2.ZERO)
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for i in range(size - 1):
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var sig = sign(last.x)
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if sig == 0:
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sig = 1
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if last.x < 0:
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center.x = abs(last.x) * -sig
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else:
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center.x = abs(last.x+1) * -sig
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last = center
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pixels.append(center)
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return pixels
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