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https://github.com/vgstation-coders/vgstation13.git
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70 lines
2.0 KiB
Plaintext
70 lines
2.0 KiB
Plaintext
/atom/movable/Cross(atom/movable/mover, turf/target, height=1.5, air_group = 0)
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return (!density || !height || air_group)
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#ifdef DM_BUILD //Checking the actual value of this macro is unnecessary, since the required build is 1438 and the macro was first added in 1443.
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//This means that the code can't compile in builds 1438-1442, but there's not a way around that.
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//(Not a good way, at least.)
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/turf/Cross(atom/movable/mover, turf/target, height=1.5, air_group = 0)
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#else
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/turf/proc/Cross(atom/movable/mover, turf/target, height=1.5, air_group = 0)
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#endif
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if(!target)
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return 0
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if(istype(mover)) // turf/Enter(...) will perform more advanced checks
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return !density
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else // Now, doing more detailed checks for air movement and air group formation
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if(target.blocks_air||blocks_air)
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return 0
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for(var/obj/obstacle in src)
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if(!obstacle.Cross(mover, target, height, air_group))
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return 0
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if(target != src)
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for(var/obj/obstacle in target)
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if(!obstacle.Cross(mover, src, height, air_group))
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return 0
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return 1
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//Basically another way of calling Cross(null, other, 0, 0) and Cross(null, other, 1.5, 1).
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//Returns:
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// 0 - Not blocked
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// AIR_BLOCKED - Blocked
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// ZONE_BLOCKED - Not blocked, but zone boundaries will not cross.
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// BLOCKED - Blocked, zone boundaries will not cross even if opened.
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/atom/proc/c_airblock(turf/other)
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/atom/movable/c_airblock(turf/other)
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#ifdef ZASDBG
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ASSERT(isturf(other))
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#endif
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return !Cross(null, other, 0, 0) + 2*!Cross(null, other, 1.5, 1)
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/turf/c_airblock(turf/other)
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#ifdef ZASDBG
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ASSERT(isturf(other))
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#endif
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if(blocks_air)
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return BLOCKED
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//Z-level handling code. Always block if there isn't an open space.
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#ifdef ZLEVELS
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if(other.z != src.z)
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if(other.z < src.z)
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if(!istype(src, /turf/simulated/floor/open))
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return BLOCKED
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else
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if(!istype(other, /turf/simulated/floor/open))
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return BLOCKED
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#endif
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var/result = 0
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for(var/atom/movable/M in contents)
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result |= M.c_airblock(other)
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if(result == BLOCKED)
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return BLOCKED
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return result
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