from campy.graphics.gtypes import GPoint
from campy.graphics.gwindow import GWindow
# Width of the rectangle (in pixels).
RECTANGLE_WIDTH = 350
# Height of the rectangle (in pixels).
RECTANGLE_HEIGHT = 270
# Radius of each constructed arc. For the illusion to look interesting, this
# should be no more than half the minimum of the rectangle's height and width.
ARC_RADIUS = 50
if __name__ == '__main__':
window = GWindow(title='Illusion')
center = GPoint(window.width / 2, window.height / 2)
corners = (
GPoint(center.x - RECTANGLE_WIDTH / 2,
center.y - RECTANGLE_HEIGHT / 2), # Upper-left
GPoint(center.x - RECTANGLE_WIDTH / 2,
center.y + RECTANGLE_HEIGHT / 2), # Lower-left
GPoint(center.x + RECTANGLE_WIDTH / 2,
center.y + RECTANGLE_HEIGHT / 2), # Lower-right
GPoint(center.x + RECTANGLE_WIDTH / 2,
center.y - RECTANGLE_HEIGHT / 2), # Upper-right
)
for corner, start in zip(corners, range(0, 360, 90)):
arc = GArc(ARC_RADIUS * 2,
ARC_RADIUS * 2,
start=start,
def test_create_gpoint_with_default_values():
point = GPoint()
assert True
height of 270 pixels in the center of the screen.
"""
from campy.graphics.gcolor import GColor
from campy.graphics.gobjects import GRect
from campy.graphics.gtypes import GPoint
from campy.graphics.gwindow import GWindow
# Width of the rectangle (in pixels).
RECTANGLE_WIDTH = 350
# Height of the rectangle (in pixels).
RECTANGLE_HEIGHT = 270
# Color of the rectangle.
RECTANGLE_COLOR = GColor.BLUE
if __name__ == '__main__':
window = GWindow(title='Centered Rectangle')
center = GPoint(window.width / 2, window.height / 2)
rect = GRect(RECTANGLE_WIDTH,
RECTANGLE_HEIGHT,
x=center.x - RECTANGLE_WIDTH / 2,
y=center.y - RECTANGLE_HEIGHT / 2)
rect.filled = True
rect.fill_color = RECTANGLE_COLOR
window.add(rect)
# Alternatively, don't set the rect's location at initialization and instead set it here.
# window.add(rect, center.x - rect.width / 2, center.y - rect.height / 2)
def test_point_equality():
point = GPoint()
empty = GPoint()
assert point == empty
assert not point != empty
def test_string():
point = GPoint()
assert str(point) == "GPoint(x=0.0, y=0.0)"
def test_unpack_gpoint():
point = GPoint(4, 1)
x, y = point
assert x == 4
assert y == 1
def test_access_gpoint_components_by_index():
point = GPoint(4, 1)
x, y = point[0], point[1]
assert x == 4
assert y == 1
def test_access_gpoint_components_by_name():
point = GPoint(4, 1)
x, y = point.x, point.y
assert x == 4
assert y == 1