def aabb_with_result(a: Rectangle, b: Rectangle, result: Rectangle) -> bool:
"""
Does Axis Aligned Bounding Box collision detection between two rectangles a and b.
Also calculates the intersection rectangle.
:param a:
:param b:
:param result:
:return:
"""
# Horizontal
amin = a.x
amax = a.x + a.width
bmin = b.x
bmax = b.x + b.width
if bmin > amin:
amin = bmin
result.x = amin
if bmax < amax:
amax = bmax
result.width = amax - amin
# Vertical
amin = a.y
amax = a.y + a.height
bmin = b.y
bmax = b.y + b.height
if bmin > amin:
amin = bmin
result.y = amin
if bmax < amax:
amax = bmax
result.height = amax - amin
return not utils.rect_empty(result)
def set_rect(rect: Rectangle, x, y, w, h):
"""
Sets the rectangle dimensions to different ones.
"""
rect.x = x
rect.y = y
rect.width = w
rect.height = h
def center_rect_in_rect(center_rect: Rectangle, outer_rect: Rectangle):
"""
Aligns a rectangle in center of another rectangle.
"""
center_rect.x = (outer_rect.x +
outer_rect.width // 2) - center_rect.width // 2
center_rect.y = (outer_rect.y +
outer_rect.height // 2) - center_rect.height // 2
def test_rect_functions():
rect = Rectangle(20, -10, 20, 5)
utils.add_vector_to_rect(rect, (6, 8))
assert rect.x == 26 and rect.y == -2 and rect.width == 20 and rect.height == 5
rect = Rectangle(20, -10, 20, 5)
utils.add_vector_to_rect(rect, (-5, -13))
assert rect.x == 15 and rect.y == -23 and rect.width == 20 and rect.height == 5
rect = Rectangle(20, -10, 20, 5)
utils.add_vector_to_rect(rect, (45, 100))
assert rect.x == 65 and rect.y == 90 and rect.width == 20 and rect.height == 5
rect = Rectangle(10, 20, 50, 50)
rect2 = Rectangle(0, 0, 30, 30)
utils.center_rect_in_rect(rect2, rect)
assert rect2.x == 20 and rect2.y == 30 and rect2.width == 30 and rect2.height == 30
assert rect.x == 10 and rect.y == 20 and rect.width == 50 and rect.height == 50
rect = Rectangle(10, 20, 50, 50)
rect2 = Rectangle(0, 0, 30, 30)
utils.center_rect_in_rect(rect, rect2)
assert rect.x == -10 and rect.y == -10 and rect.width == 50 and rect.height == 50
assert rect2.x == 0 and rect2.y == 0 and rect2.width == 30 and rect2.height == 30
rect = Rectangle(10, 20, 50, 50)
rect2 = Rectangle(0, 0, 30, 30)
assert not utils.rect_empty(rect) and not utils.rect_empty(rect2)
assert utils.rect_empty(Rectangle(10, 10, 1, 0))
assert utils.rect_empty(Rectangle(10, 10, -0, 5))
assert utils.rect_empty(Rectangle(10, 10, 43, -2))
assert utils.rect_empty(Rectangle(10, 10, 0, 0))
assert not utils.rect_empty(Rectangle(10, 10, 1, 1))
assert not utils.rect_equal(rect, rect2)
rect2.x = rect.x
rect2.y = rect.y
assert not utils.rect_equal(rect, rect2)
rect2.width = rect.width
rect2.height = rect.height
assert utils.rect_equal(rect, rect2)
assert utils.rect_in_rect(rect, rect2)
rect2.x += 1
assert not utils.rect_in_rect(rect, rect2)
rect2.height = 10
rect2.width = 10
assert utils.rect_in_rect(rect2, rect)
assert utils.point_in_rect((25, 25), rect)
assert utils.point_in_rect((rect.x, 25), rect)
assert utils.point_in_rect((rect.x + rect.width, rect.y), rect)
assert not utils.point_in_rect((rect.x + rect.width + 1, 25), rect)
rect = Rectangle(0, 0, 10, 10)
utils.set_rect(rect, 4, -2, 22, 6)
assert rect.x == 4 and rect.y == -2 and rect.width == 22 and rect.height == 6
assert utils.get_center_of_rect(rect) == (15, 1)