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blueloveTH 2023-11-10 14:22:22 +08:00
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@ -45,7 +45,53 @@ https://github.com/blueloveTH/pocketpy/blob/main/include/typings/box2d.pyi
```python ```python
import box2d import box2d
from linalg import vec2
# create a world
world = box2d.World() world = box2d.World()
# create a body with a box shape
body = box2d.Body(world) body = box2d.Body(world)
body.set_box_shape(1, 1)
# give it a velocity
body.velocity = vec2(1, 0)
# step the simulation
for i in range(30):
world.step(1/30, 8, 3)
print(i, body.position)
```
```
0 vec2(0.033, 0.000)
1 vec2(0.067, 0.000)
2 vec2(0.100, 0.000)
3 vec2(0.133, 0.000)
4 vec2(0.167, 0.000)
5 vec2(0.200, 0.000)
6 vec2(0.233, 0.000)
7 vec2(0.267, 0.000)
8 vec2(0.300, 0.000)
9 vec2(0.333, 0.000)
10 vec2(0.367, 0.000)
11 vec2(0.400, 0.000)
12 vec2(0.433, 0.000)
13 vec2(0.467, 0.000)
14 vec2(0.500, 0.000)
15 vec2(0.533, 0.000)
16 vec2(0.567, 0.000)
17 vec2(0.600, 0.000)
18 vec2(0.633, 0.000)
19 vec2(0.667, 0.000)
20 vec2(0.700, 0.000)
21 vec2(0.733, 0.000)
22 vec2(0.767, 0.000)
23 vec2(0.800, 0.000)
24 vec2(0.833, 0.000)
25 vec2(0.867, 0.000)
26 vec2(0.900, 0.000)
27 vec2(0.933, 0.000)
28 vec2(0.967, 0.000)
29 vec2(1.000, 0.000)
``` ```