(angle)
| 409 | |
| 410 | // reduce an angle in degrees to [-180,180] |
| 411 | function angleMod(angle) { |
| 412 | return (angle % 360 + 540) % 360 - 180; |
| 413 | } |
| 414 | |
| 415 | // rotate a cartesian vector |
| 416 | // axis is 0 (x), 1 (y), or 2 (z) |
no outgoing calls
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