LuaEntity.speed for asteroids

[egladil]

It would be useful to be able to read and modify the speed of asteroids at runtime. This could be used i.e. for making tractor beam turrets or deflector shields.

An alternative to having it be writable would be something similar to PushBackTriggerEffectItem that modifies speed instead of position. (And works on asteroids, which PushBackTriggerEffectItem does not seem to do?)

[egladil]

A small bump on this in case it was missed during summer

[Rseding91]

Asteroids don’t have an internal speed value. They have an internal movement per tick value which is a 2D vector that gets added to the asteroid position each tick.

So if this was exposed it would need to be as a new value: “movement” or such.

[egladil]

Right, I must have misread the documentation for speed. I assumed that was a 2d vector as well. Having "movement" exposed as read/write to script would indeed solve this for me

[Bilka]

Okay, I added LuaEntity::get_movement() and set_movement() for 2.0.67.

[egladil]

Thanks!