STKM spawn point

Properties
Section	Solids (hidden)
Spawn temperature	22°C
Heat Conductivity	0%
Relative weight	100
Gravity	0
Acid dissolve rate	0.1%
Flammability	0
State	Solid
Source code

A material that acts as a spawn point for the STKM. Brush allows only one of them to exist in the playfield at a time (and it's also the material that is placed instead of STKM when trying to place one with a brush).

Whenever the STKM dies (or disappears / is removed from the playfield), the STKM respawns with the head being on the SPWN particle. Should there be many SPWN particles on the playfield, the STKM will spawn on the one with the lowest particle ID.

If STKM dies and there is no SPWN particles remaining in the playfield, the STKM never respawns.

The equivalent of the SPWN for STK2 is SPWN2.