Python Pygame和Pymunk游戏库非冲突形状
在我的游戏中，我想创建非碰撞球。这是使用鼠标左键和右键单击创建蓝色和红色球的代码。。然而，正如你们所看到的，尽管我对球进行了分类，并在评论中对它们进行了遮罩，但球还是会发生碰撞Python Pygame和Pymunk游戏库非冲突形状,python,pygame,collision,pymunk,Python,Pygame,Collision,Pymunk,在我的游戏中，我想创建非碰撞球。这是使用鼠标左键和右键单击创建蓝色和红色球的代码。。然而，正如你们所看到的，尽管我对球进行了分类，并在评论中对它们进行了遮罩，但球还是会发生碰撞 import sys import pygame as pg from pygame.color import THECOLORS import pymunk as pm def to_pygame(p): """Small hack to convert pymunk to pygame coordinat
import sys
import pygame as pg
from pygame.color import THECOLORS
import pymunk as pm
def to_pygame(p):
"""Small hack to convert pymunk to pygame coordinates"""
return int(p[0]), int(-p[1]+600)
pg.init()
screen = pg.display.set_mode((600, 600))
clock = pg.time.Clock()
space = pm.Space()
space.gravity = (0.0, -900.0)
# Walls
static_body = space.static_body
static_lines = [
pm.Segment(static_body, (111.0, 280.0), (407.0, 246.0), 0.0),
pm.Segment(static_body, (407.0, 246.0), (407.0, 343.0), 0.0),
pm.Segment(static_body, (111.0, 420.0), (407.0, 386.0), 0.0),
pm.Segment(static_body, (407.0, 386.0), (407.0, 493.0), 0.0),
]
for idx, line in enumerate(static_lines):
line.elasticity = 0.95
if idx < 2: # Lower lines.
# The lower lines are in category 2, in binary 0b10.
line.filter = pm.ShapeFilter(categories=2)
else: # Upper lines.
# The upper lines are in category 1, in binary 0b1.
line.filter = pm.ShapeFilter(categories=1)
space.add(static_lines)
balls = []
running = True
while running:
for event in pg.event.get():
if event.type == pg.QUIT:
running = False
elif event.type == pg.KEYDOWN and event.key == pg.K_ESCAPE:
running = False
if event.type == pg.MOUSEBUTTONDOWN:
radius = 15 if event.button == 1 else 30
mass = 10
inertia = pm.moment_for_circle(mass, 0, radius, (0,0))
body = pm.Body(mass, inertia)
body.position = to_pygame(event.pos)
shape = pm.Circle(body, radius, (0,0))
shape.elasticity = 0.95
if shape.radius > 25:
# bin(pm.ShapeFilter.ALL_MASKS ^ 1) is '0b11111111111111111111111111111110'
# That means all categories are checked for collisions except
# bit 1 (the upper lines) which are ignored.
#### HOW EVER BALSS COLLIDE
shape.filter = pm.ShapeFilter(categories=0x1)
shape.filter = pm.ShapeFilter(mask=pm.ShapeFilter.ALL_MASKS ^ 1)
else:
# Ignores category bin(2), '0b11111111111111111111111111111101'
# All categories are checked for collisions except bit 2 (the lower lines).
#### HOW EVER BALSS COLLIDE
shape.filter = pm.ShapeFilter(categories=0x2)
shape.filter = pm.ShapeFilter(mask=pm.ShapeFilter.ALL_MASKS ^ 2)
space.add(body, shape)
balls.append(shape)
screen.fill(THECOLORS["white"])
balls_to_remove = []
for ball in balls:
if ball.body.position.y < 100:
balls_to_remove.append(ball)
p = to_pygame(ball.body.position)
if ball.radius > 25:
color = THECOLORS["red"]
else:
color = THECOLORS["blue"]
pg.draw.circle(screen, color, p, int(ball.radius), 2)
for ball in balls_to_remove:
space.remove(ball, ball.body)
balls.remove(ball)
for line in static_lines:
body = line.body
pv1 = body.position + line.a.rotated(body.angle)
pv2 = body.position + line.b.rotated(body.angle)
p1 = to_pygame(pv1)
p2 = to_pygame(pv2)
pg.draw.lines(screen, THECOLORS["gray29"], False, [p1, p2])
# Update physics.
dt = 1.0/60.0
for x in range(1):
space.step(dt)
pg.display.flip()
clock.tick(50)
pg.quit()
sys.exit()
您需要将球放入它们自己的类别中，然后调整遮罩，以便它们不会与该类别发生碰撞。例如，要关闭大红色球的碰撞，可以将它们放入类别
0b100shape.filter = pm.ShapeFilter(categories=0b100, mask=pm.ShapeFilter.ALL_MASKS ^ 0b100)
mask=pm.ShapeFilter.ALL_MASKS^0b100