First, do a ray intersection test with the bounding-sphere for all
entities on the map and then check the more detailed selection shape for
the remaining candidates. Do checks that require component lookups after
the ray intersection tests because these are relatively expensive.
The old method for figuring out which entities are below the mouse
cursor was incorrect because it does a 2D check to filter out the first
candidates which can lead to incorrect results with lower camera angles
and high buildings or buildings with a large footprint. Such problems
were avoided with quite a large radius for this 2D test and resulted in
a large number of candiate entities after this first test (200-500).
Also rename PickEntitiesAtPoint to PickEntityAtPoint and make it return
only one (the closest) match.
I've tested performance with the tracelogger by starting a map and then
moving the mouse in circles for one minute. The results were relatively
stable. I've compared the total time percentage of input.js:836, which
spends nearly all of the time in PickEntityAtPoint.
Ardennes Forest - Normal size: Original: 41.46% Patched: 31.6%
Ardennes Forest - Giant size: Original: 40.59% Patched: 51.55%
As we see, it's faster on normal map sizes but slower on giant maps with
a lot of entities.
This approach can be further improved with some kind of spatial
subdivision for the culling (like an octree), which would help the unit
renderer too. This way it should be possible to make it faster (and
still correct) on all map sizes and with a large total numbers of
entities.
This was SVN commit r16098.
Previously we removed all players and created them anew. This caused
issues in Atlas,
as some components were recreated, but did not get informed about
already existing
entities (eg cmpTechnologyManager). By only creating/deleting players
until we obtain
the new number of players we do not have this issue.
This was SVN commit r16080.
* Adds SDL color cursor implementation
* Adds config option for choosing preferred display in multimonitor
setup
* Uses text input API to better handle CJK input
* Fixes various hotkey and input bugs
SDL 1.2 is still the default and recommended, to test experimental SDL2
support, pass the --sdl2 flag to update-workspaces
This was SVN commit r15767.
Mount public in case we are starting Atlas and no mods are specified in
the config.
If users remove all mods and save this to the config and try to start
Atlas it will
crash, as it cannot find some needed files.
This was SVN commit r15678.
The ScriptInterface pointer can be NULL there, so using it without
checking is not safe.
This fixes the problem by continuing with the exact stack rooting
changes, which makes the temporary solution unnecessary.
Fixes#2707
Refs #2415
This was SVN commit r15611.
Yves