qzdoom/wadsrc/static/zscript/shared/ice.txt

//==========================================================================
//
// Ice chunk
//
//==========================================================================

class IceChunk : Actor
{
	Default
	{
		Radius 3;
		Height 4;
		Mass 5;
		Gravity 0.125;
		+DROPOFF
		+CANNOTPUSH
		+FLOORCLIP
		+NOTELEPORT
		+NOBLOCKMAP
		+MOVEWITHSECTOR
	}
	
	void A_IceSetTics ()
	{
		tics = 70 + (random[IceTics]() & 63);
		Name dtype = GetFloorTerrain().DamageMOD;
		if (dtype == 'Fire')
		{
			tics >>= 2;
		}
		else if (dtype == 'Ice')
		{
			tics <<= 1;
		}
	}

	States
	{
	Spawn:
		ICEC ABCD 10 A_IceSetTics;
		Stop;
	}
}

//==========================================================================
//
// A chunk of ice that is also a player
//
//==========================================================================

class IceChunkHead : PlayerChunk
{
	Default
	{
		Radius 3;
		Height 4;
		Mass 5;
		Gravity 0.125;
		DamageType "Ice";
		+DROPOFF
		+CANNOTPUSH
	}
	States
	{
	Spawn:
		ICEC A 0;
		ICEC A 10 A_CheckPlayerDone;
		wait;
	}
}