Floor movement classic specials
Floor targets
Lowest Neighbor Floor (LnF)
This means that the floor moves to the height of the lowest neighboring floor including the floor itself. If the floor direction is up (only possible with generalized floors) motion is instant, else at the floor's speed.
Next Neighbor Floor (NnF)
This means that the floor moves up to the height of the lowest adjacent floor greater in height than the current, or down to the height of the highest adjacent floor less in height than the current, as determined by the floor's direction. Instant motion is not possible in this case. If no such floor exists, the floor does not move.
Lowest Neighbor Ceiling (LnC)
This means that the floor height changes to the height of the lowest ceiling possessed by any neighboring sector, including that floor's ceiling. If the target height is in the opposite direction to floor motion, motion is instant, otherwise at the floor action's speed.
8 Under Lowest Neighbor Ceiling (8uLnC)
This means that the floor height changes to 8 less than the height of the lowest ceiling possessed by any neighboring sector, including that floor's ceiling. If the target height is in the opposite direction to floor motion, motion is instant, otherwise at the floor action's speed.
Highest Neighbor Floor (HnF)
This means that the floor height changes to the height of the highest neighboring floor, excluding the floor itself. If no neighbor floor exists, the floor moves down to -32000. If the target height is in the opposite direction to floor motion, the motion is instant, otherwise it occurs at the floor action's speed.
8 Above Highest Neighbor Floor (8aHnF)
This means that the floor height changes to 8 above the height of the highest neighboring floor, excluding the floor itself. If no neighbor floor exists, the floor moves down to -31992. If the target height is in the opposite direction to floor motion, the motion is instant, otherwise it occurs at the floor action's speed.
Ceiling
The floor moves up until its at ceiling height, instantly if floor direction is down (only available with generalized types), at the floor speed if the direction is up.
24 Units (24)
The floor moves 24 units in the floor action's direction. Instant motion is not possible with this linedef type.
32 Units (32)
The floor moves 32 units in the floor action's direction. Instant motion is not possible with this linedef type.
512 Units (512)
The floor moves 512 units in the floor action's direction. Instant motion is not possible with this linedef type.
Shortest Lower Texture (SLT)
The floor moves the height of the shortest lower texture on the boundary of the sector, in the floor direction. Instant motion is not possible with this type. In the case that there is no surrounding texture the motion is to -32000 or +32000 depending on direction.
None
Some pure texture type changes are provided for changing the floor texture and/or sector type without moving the floor.
Up/Down Absolute Param
Only available to parameterized floor specials, this target moves the floor in its indicated direction by the number of units provided as a special argument.
To Absolute Height
Only available to parameterized floor specials, this target moves the floor to an exact height which is provided as a parameter. This floor type always moves either up or down to the given height depending on whether it is higher or lower than the floor's current position. This means that instantaneous motion is not possible.
Varieties of floors
A floor can be activated by pushing on a linedef bounding it (generalized types only), or by pushing on a switch with the same tag as the floor sector, or by walking over a linedef with the same tag as the floor, or by shooting a linedef with the same tag as the floor with an impact weapon.
A floor can move either Up or Down.
A floor can move with speeds of Slow, Normal, Fast, or Turbo. If the target height specified by the floor function (see Floor Targets above) is in the opposite direction to the floor's motion, then travel is instantaneous, otherwise its at the speed specified. Parameterized floor types can move at any speed.
A floor action can be a texture change type, in which case after the action the floor texture of the affected floor, and possibly the sector type of the affected floor are changed to those of a model sector. The sector type may be zeroed instead of copied from the model, or not changed at all. These change types are referred to below as Tx (texture only), Tx0 (type zeroed), and TxTy (texture and type changed). The model sector for the change may be the sector on the first sidedef of the trigger (trigger model) or the sector with floor at destination height across the lowest numbered two-sided linedef surrounding the affected sector (numeric model). If no model sector exists, no change occurs. If a change occurs, floor texture is always affected, lighting is never affected, even that corresponding to the sector's type, nor is any other sector property other than the sector's type.
Numeric model algorithm:
1) Find all floors adjacent to the tagged floor at destination height
2) Find the lowest numbered linedef separating those floors from that tagged
3) The sector on the other side of that linedef is the model
A floor action can have the crush property, in which case players and monsters are crushed when the floor tries to move above the point where they fit exactly underneath the ceiling. This means they take damage until they die, leave the sector, or the floor action is stopped. A floor action never reverses on encountering an obstacle, even if the crush property is not true, the floor merely remains in the same position until the obstacle is removed or dies, then continues.
Floor linedef types
Regular and Extended Floor Types
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# Class Trig Dir Spd Chg Mdl Mon Crsh Target ExtraData mnemonic
60 Reg SR Dn Slow None -- No No Lowest Neighbor Floor SR_Floor_DnLnF_Slow
23 Reg S1 Dn Slow None -- No No Lowest Neighbor Floor S1_Floor_DnLnF_Slow
82 Reg WR Dn Slow None -- No No Lowest Neighbor Floor WR_Floor_DnLnF_Slow
38 Reg W1 Dn Slow None -- No No Lowest Neighbor Floor W1_Floor_DnLnF_Slow
177 Ext SR Dn Slow TxTy Num No No Lowest Neighbor Floor SR_Floor_DnLnF_cSn_Slow
159 Ext S1 Dn Slow TxTy Num No No Lowest Neighbor Floor S1_Floor_DnLnF_cSn_Slow
84 Reg WR Dn Slow TxTy Num No No Lowest Neighbor Floor WR_Floor_DnLnF_cSn_Slow
37 Reg W1 Dn Slow TxTy Num No No Lowest Neighbor Floor W1_Floor_DnLnF_cSn_Slow
69 Reg SR Up Slow None -- No No Next Neighbor Floor SR_Floor_UpNnF_Slow
18 Reg S1 Up Slow None -- No No Next Neighbor Floor S1_Floor_UpNnF_Slow
128 Reg WR Up Slow None -- No No Next Neighbor Floor WR_Floor_UpNnF_Slow
119 Reg W1 Up Slow None -- No No Next Neighbor Floor W1_Floor_UpNnF_Slow
132 Reg SR Up Fast None -- No No Next Neighbor Floor SR_Floor_UpNnF_Fast
131 Reg S1 Up Fast None -- No No Next Neighbor Floor S1_Floor_UpNnF_Fast
129 Reg WR Up Fast None -- No No Next Neighbor Floor WR_Floor_UpNnF_Fast
130 Reg W1 Up Fast None -- No No Next Neighbor Floor W1_Floor_UpNnF_Fast
222 Ext SR Dn Slow None -- No No Next Neighbor Floor SR_Floor_DnNnF_Slow
221 Ext S1 Dn Slow None -- No No Next Neighbor Floor S1_Floor_DnNnF_Slow
220 Ext WR Dn Slow None -- No No Next Neighbor Floor WR_Floor_DnNnF_Slow
219 Ext W1 Dn Slow None -- No No Next Neighbor Floor W1_Floor_DnNnF_Slow
64 Reg SR Up Slow None -- No No Lowest Neighbor Ceiling SR_Floor_UpLnC_Slow
101 Reg S1 Up Slow None -- No No Lowest Neighbor Ceiling S1_Floor_UpLnC_Slow
91 Reg WR Up Slow None -- No No Lowest Neighbor Ceiling WR_Floor_UpLnC_Slow
5 Reg W1 Up Slow None -- No No Lowest Neighbor Ceiling W1_Floor_UpLnC_Slow
24 Reg G1 Up Slow None -- No No Lowest Neighbor Ceiling G1_Floor_UpLnC_Slow
65 Reg SR Up Slow None -- No Yes Lowest Neighbor Ceiling - 8 SR_Floor_UpLnCm8_Slow_Crush
55 Reg S1 Up Slow None -- No Yes Lowest Neighbor Ceiling - 8 S1_Floor_UpLnCm8_Slow_Crush
94 Reg WR Up Slow None -- No Yes Lowest Neighbor Ceiling - 8 WR_Floor_UpLnCm8_Slow_Crush
56 Reg W1 Up Slow None -- No Yes Lowest Neighbor Ceiling - 8 W1_Floor_UpLnCm8_Slow_Crush
45 Reg SR Dn Slow None -- No No Highest Neighbor Floor SR_Floor_DnHnF_Slow
102 Reg S1 Dn Slow None -- No No Highest Neighbor Floor S1_Floor_DnHnF_Slow
83 Reg WR Dn Slow None -- No No Highest Neighbor Floor WR_Floor_DnHnF_Slow
19 Reg W1 Dn Slow None -- No No Highest Neighbor Floor W1_Floor_DnHnF_Slow
70 Reg SR Dn Fast None -- No No Highest Neighbor Floor + 8 SR_Floor_DnHnFp8_Fast
71 Reg S1 Dn Fast None -- No No Highest Neighbor Floor + 8 S1_Floor_DnHnFp8_Fast
98 Reg WR Dn Fast None -- No No Highest Neighbor Floor + 8 WR_Floor_DnHnFp8_Fast
36 Reg W1 Dn Fast None -- No No Highest Neighbor Floor + 8 W1_Floor_DnHnFp8_Fast
180 Ext SR Up Slow None -- No No Absolute 24 SR_Floor_Up24_Slow
161 Ext S1 Up Slow None -- No No Absolute 24 S1_Floor_Up24_Slow
92 Reg WR Up Slow None -- No No Absolute 24 WR_Floor_Up24_Slow
58 Reg W1 Up Slow None -- No No Absolute 24 W1_Floor_Up24_Slow
179 Ext SR Up Slow TxTy Trg No No Absolute 24 SR_Floor_Up24_cSt_Slow
160 Ext S1 Up Slow TxTy Trg No No Absolute 24 S1_Floor_Up24_cSt_Slow
93 Reg WR Up Slow TxTy Trg No No Absolute 24 WR_Floor_Up24_cSt_Slow
59 Reg W1 Up Slow TxTy Trg No No Absolute 24 W1_Floor_Up24_cSt_Slow
176 Ext SR Up Slow None -- No No Abs Shortest Lower Texture SR_Floor_UpsT_Slow
158 Ext S1 Up Slow None -- No No Abs Shortest Lower Texture S1_Floor_UpsT_Slow
96 Reg WR Up Slow None -- No No Abs Shortest Lower Texture WR_Floor_UpsT_Slow
30 Reg W1 Up Slow None -- No No Abs Shortest Lower Texture W1_Floor_UpsT_Slow
178 Ext SR Up Slow None -- No No Absolute 512 SR_Floor_Up512_Slow
140 Reg S1 Up Slow None -- No No Absolute 512 S1_Floor_Up512_Slow
147 Ext WR Up Slow None -- No No Absolute 512 WR_Floor_Up512_Slow
142 Ext W1 Up Slow None -- No No Absolute 512 W1_Floor_Up512_Slow
190 Ext SR -- ---- TxTy Trg No No None SR_Floor_cSt
189 Ext S1 -- ---- TxTy Trg No No None S1_Floor_cSt
154 Ext WR -- ---- TxTy Trg No No None WR_Floor_cSt
153 Ext W1 -- ---- TxTy Trg No No None W1_Floor_cSt
78 Ext SR -- ---- TxTy Num No No None SR_Floor_cSn
241 Ext S1 -- ---- TxTy Num No No None S1_Floor_cSn
240 Ext WR -- ---- TxTy Num No No None WR_Floor_cSn
239 Ext W1 -- ---- TxTy Num No No None W1_Floor_cSn
The following tables show the possibilities for generalized floor linedef type parameters. Any combination of parameters is allowed:
Slow and Fast represent the same speeds as slow and fast regular floors. Normal is twice as fast as slow, Fast is twice normal, Turbo is twice Fast.
Generalized Floor Types
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# Class Trig Dir Spd *Chg *Mdl Mon Crsh Target
6000H- Gen D1/DR Up Slow None Trg Yes Yes Lowest Neighbor Floor
7FFFH S1/SR Dn Normal Tx Num No No Next Neighbor Floor
W1/WR Fast Tx0 Lowest Neighbor Ceiling
G1/GR Turbo TxTy Highest Neighbor Floor
Ceiling
24
32
*Mon(ster) enabled must be No if Shortest Lower Texture
Chg field is not None
Tx = Texture copied only Trg = Trigger Model
Tx0 = Texture copied and Type->0 Num = Numeric Model
TxTy = Texture and Type copied
Parameterized Floor Types
- 306 Floor_RaiseToHighest(tag, speed, change, crush)
- 307 Floor_LowerToHighest(tag, speed, change)
- 308 Floor_RaiseToLowest(tag, change, crush)
- 309 Floor_LowerToLowest(tag, speed, change)
- 310 Floor_RaiseToNearest(tag, speed, change, crush)
- 311 Floor_LowerToNearest(tag, speed, change)
- 312 Floor_RaiseToLowestCeiling(tag, speed, change, crush)
- 313 Floor_LowerToLowestCeiling(tag, speed, change)
- 314 Floor_RaiseToCeiling(tag, speed, change, crush)
- 315 Floor_RaiseByTexture(tag, speed, change, crush)
- 316 Floor_LowerByTexture(tag, speed, change)
- 317 Floor_RaiseByValue(tag, speed, height, change, crush)
- 318 Floor_LowerByValue(tag, speed, height, change)
- 319 Floor_MoveToValue(tag, speed, height, change, crush)
- 320 Floor_RaiseInstant(tag, height, change, crush)
- 321 Floor_LowerInstant(tag, height, change)
- 322 Floor_ToCeilingInstant(tag, change, crush)
- tag: Tag of sector whose floor to move. Use zero if the intended sector is behind the activating linedef, if applicable.
- speed: Speed in eights of units per tic. Doom's usual floors are equivalent to 8, others to 32. Note that some of Doom's drawbridges use the speed of 4.
- height: How many vertical map units to move the floor, if the parameterized special allows it.
- change: Set up whether to change the texture and/or type and how:
- 0 : No texture or type change.
- 1 : Copy texture, zero type; trigger model.
- 2 : Copy texture, zero type; numeric model.
- 3 : Copy texture, preserve type; trigger model.
- 4 : Copy texture, preserve type; numeric model.
- 5 : Copy texture and type; trigger model.
- 6 : Copy texture and type; numeric model.
- crush: If greater than zero, amount of damage to inflict at each four tics on obstructing shootable objects.
Back to Linedef types
