Moving platform

Platforms or lifts are sector floor movements that can be interrupted if an object blocks the movement. For this reason, it can be useful to turn platforms created with multiple sectors into linked sectors.

Platforms are created with the following specials:

• Generic_Lift
• Plat_PerpetualRaise
• Plat_UpByValue
• Plat_UpWaitDownStay
• Plat_DownWaitUpStay
• Plat_DownByValue
• Plat_UpNearestWaitDownStay
• Plat_PerpetualRaiseLip
• Plat_DownWaitUpStayLip
• Plat_RaiseAndStayTx0
• Plat_ToggleCeiling
• Plat_UpByValueStayTx

A platform movement can be interrupted with Plat_Stop.

The following Doom and Boom platform types can be converted this way to ZDoom's Hexen format or UDMF namespace:

10	Plat_DownWaitUpStayLip (tag, 32, 105, 0)
14	Plat_UpByValueStayTx (tag, 4, 4)
15	Plat_UpByValueStayTx (tag, 4, 3)
20	Plat_RaiseAndStayTx0 (tag, 4)
21	Plat_DownWaitUpStayLip (tag, 32, 105)
22	Plat_RaiseAndStayTx0 (tag, 4)
47	Plat_RaiseAndStayTx0 (tag, 4)
53	Plat_PerpetualRaiseLip (tag, 8, 105, 0)
54	Plat_Stop (tag)
62	Plat_DownWaitUpStayLip (tag, 32, 105, 0)
66	Plat_UpByValueStayTx (tag, 4, 3)
67	Plat_UpByValueStayTx (tag, 4, 4)
68	Plat_RaiseAndStayTx0 (tag, 4)
87	Plat_PerpetualRaiseLip (tag, 8, 105, 0)
88	Plat_DownWaitUpStayLip (tag, 32, 105, 0)
89	Plat_Stop (tag)
95	Floor_RaiseByValueTxTy (tag, 8, 24)
120	Plat_DownWaitUpStayLip (tag, 64, 105, 0)
121	Plat_DownWaitUpStayLip (tag, 64, 105, 0)
122	Plat_DownWaitUpStayLip (tag, 64, 105, 0)
123	Plat_DownWaitUpStayLip (tag, 64, 105, 0)
143	Plat_UpByValueStayTx (tag, 4, 3)
144	Plat_UpByValueStayTx (tag, 4, 4)
148	Plat_UpByValueStayTx (tag, 4, 3)
149	Plat_UpByValueStayTx (tag, 4, 4)
162	Plat_PerpetualRaiseLip (tag, 8, 105, 0)
163	Plat_Stop (tag)
181	Plat_PerpetualRaiseLip (tag, 8, 105, 0)
182	Plat_Stop (tag)
211	Plat_ToggleCeiling (tag)
212	Plat_ToggleCeiling (tag)

A related notion is the elevator, introduced by Boom, in which both the floor and the ceiling move together. Elevators are created with the following specials:

• Elevator_LowerToNearest
• Elevator_MoveToFloor
• Elevator_RaiseToNearest

The following Boom elevator types can be converted this way:

227	Elevator_RaiseToNearest (tag, 32)
228	Elevator_RaiseToNearest (tag, 32)
229	Elevator_RaiseToNearest (tag, 32)
230	Elevator_RaiseToNearest (tag, 32)
231	Elevator_LowerToNearest (tag, 32)
232	Elevator_LowerToNearest (tag, 32)
233	Elevator_LowerToNearest (tag, 32)
234	Elevator_LowerToNearest (tag, 32)
235	Elevator_MoveToFloor (tag, 32)
236	Elevator_MoveToFloor (tag, 32)
237	Elevator_MoveToFloor (tag, 32)
238	Elevator_MoveToFloor (tag, 32)