Elite zombie bio-operator disarm attack destroys items

[Psiclops]

When the elite zombie bio-operator "grabs your weapon and throws it to the ground", often the item is completely gone.

Steps To Reproduce

Expected behavior

By the text that happens, the item should be found on the ground nearby, but often is not.

In 3 tests, 2 out of 3 disarming moves by the elite.... cause the item to disappear.
Once was a gun, once was a melee weapon, the correctly functioning time was an identical melee weapon that did not disappear.

Screenshots

Versions and configuration

• OS: Windows
  • OS Version: 10.0 2009
• Game Version: 0.E-10212-gb725af3 [64-bit]
• Graphics Version: Tiles
• Game Language: System language []
• Mods loaded: [
  Dark Days Ahead [dda],
  Disable NPC Needs [no_npc_food],
  Bionic Professions [package_bionic_professions],
  Magiclysm [magiclysm],
  Graphical Overmap [Graphical_Overmap],
  Graphical Overmap Magiclysm [Graphical_Overmap_Magiclysm]
  ]

[Psiclops]

Thinking back, its possible this is happening near walls, as I was in the new one level "lab" all the times it has happened.

[Zireael07]

Hm, maybe it's trying to put the item in the wall or something weird like that?

[ZhilkinSerg]

Yeah - there is no check for free space:

Cataclysm-DDA/src/monattack.cpp

Lines 5374 to 5376 in 89a9480

	target->add_msg_if_player( m_bad, _( "and throws it to the ground!" ) );
	const tripoint tp = foe->pos() + tripoint( rng( -1, 1 ), rng( -1, 1 ), 0 );
	get_map().add_item_or_charges( tp, foe->i_rem( &it ) );

[actual-nh]

Suggestion: If there isn't any free space at the randomly-selected point, put it in the square of the zombie bio-operator.

[RenechCDDA]

No monster uses this attack anymore but mattack::bio_op_disarm is still in the code and docs, so still (vaguely) relevant.