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Use Image.rotate_90() and Image.rotate_180() on CPU rotation algorithms when the angle is 90, 180 or 270 degrees

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This commit is contained in:
Emmanouil Papadeas 2024-03-01 20:25:37 +02:00
parent 57856ed327
commit 4a404b2883
1 changed files with 31 additions and 4 deletions
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35
src/Autoload/DrawingAlgos.gd
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@ -216,9 +216,16 @@ func scale_3x(sprite: Image, tol := 50.0) -> Image:
func rotxel(sprite: Image, angle: float, pivot: Vector2) -> void:
# If angle is simple, then nn rotation is the best
if angle == 0 || angle == PI / 2 || angle == PI || angle == 3.0 * PI / 2.0 || angle == TAU:
nn_rotate(sprite, angle, pivot)
if is_zero_approx(angle) or is_equal_approx(angle, TAU):
return
if is_equal_approx(angle, PI / 2.0):
sprite.rotate_90(CLOCKWISE)
return
if is_equal_approx(angle, 3.0 * PI / 2.0):
sprite.rotate_90(COUNTERCLOCKWISE)
return
if is_equal_approx(angle, PI):
sprite.rotate_180()
return
var aux := Image.new()
@ -399,6 +406,17 @@ func rotxel(sprite: Image, angle: float, pivot: Vector2) -> void:
func fake_rotsprite(sprite: Image, angle: float, pivot: Vector2) -> void:
if is_zero_approx(angle) or is_equal_approx(angle, TAU):
return
if is_equal_approx(angle, PI / 2.0):
sprite.rotate_90(CLOCKWISE)
return
if is_equal_approx(angle, 3.0 * PI / 2.0):
sprite.rotate_90(COUNTERCLOCKWISE)
return
if is_equal_approx(angle, PI):
sprite.rotate_180()
return
var selected_sprite := scale_3x(sprite)
nn_rotate(selected_sprite, angle, pivot * 3)
selected_sprite.resize(
@ -408,7 +426,16 @@ func fake_rotsprite(sprite: Image, angle: float, pivot: Vector2) -> void:
func nn_rotate(sprite: Image, angle: float, pivot: Vector2) -> void:
if is_zero_approx(angle):
if is_zero_approx(angle) or is_equal_approx(angle, TAU):
return
if is_equal_approx(angle, PI / 2.0):
sprite.rotate_90(CLOCKWISE)
return
if is_equal_approx(angle, 3.0 * PI / 2.0):
sprite.rotate_90(COUNTERCLOCKWISE)
return
if is_equal_approx(angle, PI):
sprite.rotate_180()
return
var aux := Image.new()
aux.copy_from(sprite)