40d:Floor hatch

Requires a hatch cover.

A Floor Hatch is door based on the Z-axis. When you create a stairway between two floors (both an upwards staircase on the lower floor and a downwards staircase on the upper floor) the Floor Hatch, when put on the upper floor staircase, acts like a door. If you lock it, the dwarves will not use that staircase. A closed floor hatch will block the passage of fluids onto the lower floor, and will stop falling creatures. They can also be used on ramps. Floor hatches can also be placed on open space, provided they have support.

Uses

Floor Hatches could possibly have another use:

• Trap doors when hooked to pressure plates?
• For use over pits and ponds?
• Preventing water and magma from flowing down stairs or ramps - useful for aquifer levels

Testing

Testing shows that in a nutshell:

• Two Floor Hatches (one on each staircase going up and down) is ineffective. You only need to put one on top.
• They work just like doors. Only on the Z-axis.
• The hatch will be flashing
• A dwarf falling down a multiple floor stairway will be stopped by a closed floor hatch.

More testing is required.

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