Previously, global particles would be drawn even in front of Plane 1000+ (GUI) objects. Additionally, it was impossible to specify particles that were supposed to always be in front of all other particles (e.g. fog, clouds, emulated FoW, ...).
Now, you can attach particles to an object on plane 901+ and have them be in front of everything else.
The FoW renderer would try drawing to texture coordinates one pixel
too high (i.e. if the texture was 256 pixels high, it would draw to
pixels with 1 <= y <= 256 instead of 0..255).
The lpClass parameter isn't used, and it is valid to pass NULL for it.
It is, however, not valid to pass a string literal, because the
conversion to nonconst char* has been deprecated in C++ for a long time
and doesn't exist anymore in C++11.
Quoth MSDN: "The Unicode version of this function, CreateProcessW, can
modify the contents of this string. Therefore, this parameter cannot be
a pointer to read-only memory (such as a const variable or a literal
string). If this parameter is a constant string, the function may cause
an access violation."
It can, however, be NULL, which does the right thing automatically.
It seems like an odd decision to add a layer of indirection to this,
especially since it's just a pointer to int instead of a pointer to a
larger structure.
The red color channel calculation could overflow into the sign bit,
which is undefined behavior. At least one compiler takes advantage of
this and assumes it cannot happen, resulting in incorrect results.
BltAlphaAdd looks similar, but does in fact not have this bug because it
shifts the color channel far enough that multiplication can't overflow.
Otherwise, you could open a menu on mouse-down, which would then block the mouse-up event. The control system (not the script but the engine!) would then never know that the button was released and issue a key event with repeated=1 when you pressed the button the next time.
This could lead to issues.
If the gamepad code initialized the SDL video subsystem, GTK+ crashed in
libX11. Or something along those lines.
Making the optional subsystems using SDL for gamepads and audio use
SDL_InitSubSystem and only the SDL Application port do the full SDL_Init
is the proper way to do things in any case.
It used a mix of tabs and spaces for indentation, and tabs to separate the
columns, which doesn't work with variable tab sizes and variable column
widths. Use tabs for indentation and spaces for column separation.
The GTK and OS X platforms already ignored the requested bit depth and
always used 32 bit. Windows and SDL would set a 16 bit color depth for
the screen, but still did all of the rendering short of the final
present in 32 bit.
In windowed mode, we shouldn't stop rendering just because we have lost
focus. However, we don't need to render at full framerate; throttling to
5 fps should be sufficient. Note though that we still have to calculate
game ticks at full speed so network games don't slow down when a player
tabs out of the game.
Even though we (might) change the resolution, that doesn't result in
loss of textures because we don't recreate the OpenGL context. Therefore
we also don't have to restore their data. I believe this code is a relic
from the DirectX renderer, which would lose textures when switching away
from a fullscreen window.
When an UI element was only visible to a player (via the Player property), it still allowed ALL players to click on buttons.
I am wondering why noone else noticed that bug before. It's possible that it didn't show when the visibility was set via the menu's Target (instead of the Player property).
Maybe this was the cause of the "clicks sometimes do nothing" bug?
It isn't enough to check the top-level mesh, because attached meshes also
get a transformation from script. At least cotton branches sometimes do
that.
So check the matrix directly before using it and skip rendering.
Lukas Werling