DALKDemo is responsible not only for the opening demo but also for the
UI of the title menu. This change fully implements DALKDemo. DALKEDemo
is stubbed out.
gfx_render_text uses floats for layout, so the parts_text layout should
use floats to match.
This fixes an issue with off-center text in the English version of Rance
01.
The interface to this feature is strange. The message window visibility
state is passed to Update/UpdateParts every frame rather than being a
part of the global parts state. I've implemented it using global state,
which might be subtly wrong in some way, but it seems to work as
expected in Rance 01.
PE_UpdateComponent needs to be called before rendering the starting
frame of a transition effect.
This fixes a glitch in the ●立ち絵 function of Rance 01 when
transitioning to a variant CG.
This adds a new parameter `blend` to `gfx_draw_glyph()`. When `blend` is
true, the function performs normal alpha blending (same as
`gfx_draw_glyph_to_pmap()`).
If `blend` is false, the resulting pixel color will be the text color
and the alpha value will be copied from the glyph texture. However, if
the alpha value is less than 0.01, the pixel will not be written.
If you are drawing on a transparent texture (which will later be blended
into another texture), `blend` should be false. If you are drawing on top
of an image, `blend` should be true.
`gfx_draw_glyph()` used to fill transparent pixels with text color, but
this step is no longer needed and has been removed.
== Handles
As a general pattern, these libraries have an interface based on integer
handles allocated by Open() and released by Close(); in the AliceSoft's
implementation, handles are pointers to internal objects. Note that:
* 0 is used to represent an invalid handle, and
* Small numbers cannot be handles. For example, Mamanyonyo has code that
treats an integer as a CG number if it is less than 10000, and as a
surface handle otherwise.
In this patch, handles are generated using id_pool.h functions. In order
to achieve the above, the interface is extended so that the minimum ID
value can be specified (the `base` parameter of id_pool_init()).
== Graphics System
Surface objects (implemented in vmSurface.[ch]) plays a central role in
Mamanyonyo's graphics system, and the sprite system (vmSprite.c) is
implemented on top of it. vmSprite.c uses scene.h functions.
== vmChrLoader and vmMapLoader
Since Mamanyonyo's character data format is the same as Widenyo's,
the ChrLoader code has been refactored and used from vmChrLoader.c.
On the other hand, MapLoader and vmMapLoader do not share code because
the map file format is different from Widenyo.
This prevents glTexImage2D() from failing and resulting in an invalid
texture if a width or height specified in sact2.SP_Create() is greater
than GL_MAX_TEXTURE_SIZE.
It is very rare and is probably a programming error in the game script.
If the resulting texture is used for rendering, it may mess up the
screen, but at least it won't crash.
Fixes https://github.com/kichikuou/xsystem4-android/issues/4.
kichikuou