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more lightweight camera caching

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no loops

Signed-off-by: Mloc <colmohici@gmail.com>
This commit is contained in:
Mloc
2015-05-09 23:25:12 +01:00
parent 5b92057890
commit 895e78df1e
2 changed files with 12 additions and 7 deletions
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7
code/modules/alarm/alarm.dm
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@@ -18,6 +18,7 @@
var/list/sources = new() //List of sources triggering the alarm. Used to determine when the alarm should be cleared.
var/list/sources_assoc = new() //Associative list of source triggers. Used to efficiently acquire the alarm source.
var/list/cameras //List of cameras that can be switched to, if the player has that capability.
var/cache_id //ID for camera cache, changed by invalidateCameraCache().
var/area/last_area //The last acquired area, used should origin be lost (for example a destroyed borg containing an alarming camera).
var/area/last_name //The last acquired name, used should origin be lost
var/area/last_camera_area //The last area in which cameras where fetched, used to see if the camera list should be updated.
@@ -74,8 +75,12 @@
return last_name
/datum/alarm/proc/cameras()
// reset camera cache
if(camera_cache_id != cache_id)
cameras = null
cache_id = camera_cache_id
// If the alarm origin has changed area, for example a borg containing an alarming camera, reset the list of cameras
if(cameras && (last_camera_area != alarm_area()))
else if(cameras && (last_camera_area != alarm_area()))
cameras = null
// The list of cameras is also reset by /proc/invalidateCameraCache()