Add Circle collideswith()

[itzpr3d4t0r]

This PR adds the much awaited Circle.collideswith function.

Credits

Geometry Project:
For code, docs and tests:
@novialriptide @Emc2356 @itzpr3d4t0r @ScriptLineStudios @avaxar @Matiiss @newpaxonian @maqa41 @blankRiot96
Also thanks to @Starbuck5 for kickstarting the idea and the occasional help!

Functionality added in this PR

• circle.c
  https://github.com/pygame-community/pygame-geometry/blame/main/src_c/circle.c
  Credits to @Emc2356 @itzpr3d4t0r @novialriptide
• geometry.pyi
  https://github.com/pygame-community/pygame-geometry/blame/main/geometry.pyi
  Credits to @Emc2356 @itzpr3d4t0r @novialriptide @ScriptLineStudios @avaxar
• geometry_test.py
  https://github.com/pygame-community/pygame-geometry/blame/main/test/test_circle.py
  Credits to @itzpr3d4t0r @novialriptide
• geometry.rst
  https://github.com/pygame-community/pygame-geometry/blame/main/docs/circle.rst
  Credits to @itzpr3d4t0r

[MyreMylar]

LGTM 👍

All works locally. Tested with:

import pygame

from pygame import Color, Rect, Vector2
from pygame.geometry import Circle

pygame.init()
screen = pygame.display.set_mode((640, 480), 0)

white_background = pygame.Surface(screen.get_rect().size)
white_background.fill((255, 255, 255))

circle_1 = Circle((50, 50), 30)
circle_col = Color("red")

circle_2 = Circle((250, 250), 30)
circle_2_col = Color("blue")

rect_3 = Rect(40, 40, 30, 30)
rect_3_col = Color("blue")

point_4_col = Color("blue")
point_4 = Vector2(100, 150)

running = True

while running:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            running = False

    circle_1.center = pygame.mouse.get_pos()

    if circle_1.collideswith(circle_2):
        circle_col = Color("blue")
        circle_2_col = Color("green")
    elif circle_1.collideswith(point_4):
        circle_col = Color("blue")
        point_4_col = Color("green")
    elif circle_1.collideswith(rect_3):
        circle_col = Color("blue")
        rect_3_col = Color("green")
    else:
        circle_col = Color("red")
        circle_2_col = Color("blue")
        rect_3_col = Color("blue")

    screen.blit(white_background, (0, 0))

    pygame.draw.circle(screen, circle_col, (circle_1.x, circle_1.y), circle_1.r)
    pygame.draw.circle(screen, circle_2_col, (circle_2.x, circle_2.y), circle_2.r)
    pygame.draw.rect(screen, rect_3_col, rect_3)
    pygame.draw.line(screen, point_4_col, point_4, point_4)

    pygame.display.flip()


pygame.quit()

[Matiiss]

I don't know about this one, because the argument is an instance of those types not a type itself.

[itzpr3d4t0r]

Thanks, I changed it a bit. I've removed mentions of Line and Poly as well.

[Matiiss]

not sure Coordinate should've been used instead of a sequence of two points since we don't really have a Coordinate object, it only appears in type stubs, maybe you can change that back, as for the other shapes, maybe those could stay in the message since otherwise they'd have to be added later and that could be forgotten.

[itzpr3d4t0r]

Alright.