https://www.gtamodding.com/wiki/Memory_Addresses_(SA)
CPed +0x42 = [byte] Is the BP/EP/FP/DP (special flags) status of the player as follows:
Bit 1 = makes ped soft (ie. can move through walls and everything) (noclip in other words)
Bit 2 = freezes ped (ie. ped cannot walk)
Bit 3 = bullet-proof
Bit 4 = flame-proof
Bit 5 = collision-proof
Bit 6 = MP-proof (MP)
Bit 7 = ?
Bit 8 = explosion-proof