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- inlined calc_globalshifts to get rid of two global variables.

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This commit is contained in:
Christoph Oelckers 2020-12-13 21:41:04 +01:00
parent 2184baaa18
commit 0f8e73ce77
2 changed files with 8 additions and 17 deletions
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21
source/build/src/engine.cpp
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@ -178,7 +178,6 @@ int32_t cosviewingrangeglobalang, sinviewingrangeglobalang;
int32_t xyaspect;
int32_t viewingrangerecip;
static char globalxshift, globalyshift;
static int32_t globalxpanning, globalypanning;
int32_t globalshade, globalorientation;
int16_t globalpicnum;
@ -301,19 +300,6 @@ int32_t animateoffs(int const tilenum, int fakevar)
return offs;
}
// globalpicnum --> globalxshift, globalyshift
static void calc_globalshifts(void)
{
globalxshift = (8-widthBits(globalpicnum));
globalyshift = (8-heightBits(globalpicnum));
if (globalorientation&8) { globalxshift++; globalyshift++; }
// PK: the following can happen for large (>= 512) tile sizes.
// NOTE that global[xy]shift are unsigned chars.
if (globalxshift > 31) globalxshift=0;
if (globalyshift > 31) globalyshift=0;
}
static void renderDrawSprite(int32_t snum)
{
polymost_drawsprite(snum);
@ -1705,7 +1691,12 @@ void renderDrawMapView(int32_t dax, int32_t day, int32_t zoome, int16_t ang)
globaly2 = mulscale12(globaly2,i);
}
calc_globalshifts();
int globalxshift = (8 - widthBits(globalpicnum));
int globalyshift = (8 - heightBits(globalpicnum));
if (globalorientation & 8) { globalxshift++; globalyshift++; }
// PK: the following can happen for large (>= 512) tile sizes.
if (globalxshift < 0) globalxshift = 0;
if (globalyshift < 0) globalyshift = 0;
if ((globalorientation&0x4) > 0)
{