gzdoom/wadsrc/static/zscript/compatibility.txt

// This file contains compatibility wrappers for DECORATE functions with bad parameters or other things that were refactored since the first release.

extend class Object
{
	deprecated("2.4") static int GameType()
	{ 
		return gameinfo.gametype; 
	}
	
	deprecated("2.4") static void C_MidPrint(string fontname, string textlabel, bool bold = false)
	{
		let f = Font.GetFont(fontname);
		if (f == null) return;
		return Console.MidPrint(f, textlabel, bold);
	}

}

extend class Actor
{
	deprecated("2.3") void A_CustomMissile(class<Actor> missiletype, double spawnheight = 32, double spawnofs_xy = 0, double angle = 0, int flags = 0, double pitch = 0, int ptr = AAPTR_TARGET)
	{
		A_SpawnProjectile(missiletype, spawnheight, spawnofs_xy, angle, flags|CMF_BADPITCH, pitch, ptr);
	}
}

extend class StateProvider
{
	deprecated("2.3") action void A_FireCustomMissile(class<Actor> missiletype, double angle = 0, bool useammo = true, double spawnofs_xy = 0, double spawnheight = 0, int flags = 0, double pitch = 0)
	{
		A_FireProjectile(missiletype, angle, useammo, spawnofs_xy, spawnheight, flags, -pitch);
	}
}

// this is just a placeholder until the statusbar gets properly exported.
struct StatusBar native
{
	native static void ReceivedWeapon(Weapon weap);
}