Monitors: for 6 seconds, dropped items can only be picked up by the player who destroyed the monitor

- Paper items colorize to player color
  - Color flickers back to normal 1 second before the item
    can be picked up by anyone
- If a player who can't pick it up steps on the paper
  item, that player becomes shadowed

src/k_objects.h

@@ -95,7 +95,7 @@ void Obj_MonitorThink(mobj_t *monitor);
 void Obj_MonitorPartThink(mobj_t *part);
 fixed_t Obj_MonitorGetDamage(mobj_t *monitor, mobj_t *inflictor, UINT8 damagetype);
 void Obj_MonitorOnDamage(mobj_t *monitor, mobj_t *inflictor, INT32 damage);
-void Obj_MonitorOnDeath(mobj_t *monitor);
+void Obj_MonitorOnDeath(mobj_t *monitor, mobj_t *source);
 void Obj_MonitorShardThink(mobj_t *shard);
 UINT32 Obj_MonitorGetEmerald(const mobj_t *monitor);
 void Obj_MonitorSetItemSpot(mobj_t *monitor, mobj_t *spot);

src/objects/monitor.c

@@ -670,7 +670,9 @@ Obj_MonitorOnDamage
 }
 
 void
-Obj_MonitorOnDeath (mobj_t *monitor)
+Obj_MonitorOnDeath
+(		mobj_t * monitor,
+		mobj_t * source)
 {
 	const UINT8 itemcount = get_monitor_itemcount(monitor);
 	const angle_t ang = ANGLE_MAX / itemcount;
@@ -686,13 +688,21 @@ Obj_MonitorOnDeath (mobj_t *monitor)
 		const SINT8 result = get_item_result();
 		const UINT32 localseed = restore_item_rng(sharedseed);
 
-		adjust_monitor_drop(monitor,
+		mobj_t *drop = adjust_monitor_drop(monitor,
 				K_FlingPaperItem(
 					monitor->x, monitor->y, monitor->z + (128 * mapobjectscale * flip),
 					i * ang, flip,
 					K_ItemResultToType(result),
 					K_ItemResultToAmount(result)));
 
+		if (!P_MobjWasRemoved(source) && source->player)
+		{
+			P_SetTarget(&drop->tracer, source);
+			drop->extravalue1 = 6*TICRATE;
+			drop->colorized = true;
+			drop->color = source->player->skincolor;
+		}
+
 		// K_FlingPaperItem may advance RNG, so update our
 		// copy of the seed afterward
 		sharedseed = restore_item_rng(localseed);

src/p_inter.c

@@ -396,6 +396,12 @@ void P_TouchSpecialThing(mobj_t *special, mobj_t *toucher, boolean heightcheck)
 			P_InstaThrust(player->mo, player->mo->angle, 20<<FRACBITS);
 			return;
 		case MT_FLOATINGITEM: // SRB2Kart
+			if (special->extravalue1 > 0 && toucher != special->tracer)
+			{
+				player->pflags |= PF_CASTSHADOW;
+				return;
+			}
+
 			if (special->threshold >= FIRSTPOWERUP)
 			{
 				if (P_PlayerInPain(player))
@@ -2366,7 +2372,7 @@ void P_KillMobj(mobj_t *target, mobj_t *inflictor, mobj_t *source, UINT8 damaget
 		}
 
 		case MT_MONITOR:
-			Obj_MonitorOnDeath(target);
+			Obj_MonitorOnDeath(target, source);
 			break;
 		case MT_BATTLEUFO:
 			Obj_BattleUFODeath(target, inflictor);

src/p_mobj.c

@@ -7587,6 +7587,15 @@ static boolean P_MobjRegularThink(mobj_t *mobj)
 		}
 
 		K_UpdateMobjItemOverlay(mobj, mobj->threshold, mobj->movecount);
+
+		if (mobj->extravalue1 > 0)
+		{
+			mobj->extravalue1--;
+			if (mobj->extravalue1 < TICRATE)
+			{
+				mobj->colorized = mobj->extravalue1 & 1;
+			}
+		}
 		break;
 	}
 	case MT_ITEMCAPSULE: