Fixes behavior after ed5e81c.
Although somewhat inconsistent, but AGS historically allowed to run animations in "room load" event,
and they would be rendered if last room transition was "Instant", because the screen was not faded out.
From upstream fb2fd763a471af7532324a4da8e0f655e7cf5516
* Moved plugin API event constants to a separate header agsplugin_evts.h.
Engine should not include whole plugin API, this is unnecessary, and may
create naming conflicts.
* Moved SimulateMouseClick to mouse.cpp.
* Minor cleanup in agsplugin.cpp
From upstream 510293c1fd277d853544534423ceea27b8ae3e2d
The idea is that the old variants have internal names with number
(signifying number of args), while the latest variant has a name without number.
Make sure there's a distinct function for each variant, and older vars are calling later ones in a sequence.
These calls likely to be inlined.
From upstream ca48926a37e848a1bcc162f77cc81e63ec7a1ca0
This argument works similarily to Viewport.ScreenToRoomPoint():
if it's set to true then the function returns null if there's no
viewport under the cursor; if it's set to false it converts
coordinates through the primary viewport in such case.
From upstream 5014c502aa487d3cbdf01e99d57306f2131d4c54
This not only simplifies all the use of _t types to the
ScummVM equivalents, it gets rid of the int32 usage in
favor of just int, solving common type clashes with the
Amiga, for which int doesn't match int32
Walter Agazzi
Thierry Crozat
Paul Gilbert
Eugene Sandulenko