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Some more updates to Gfx::palFade (not finished yet, though)

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svn-id: r28705
This commit is contained in:
Filippos Karapetis 2007-08-24 11:37:58 +00:00
parent 65c390cbfc
commit f48ce0d821
1 changed files with 10 additions and 30 deletions
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40
engines/saga/gfx.cpp
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@ -402,49 +402,29 @@ void Gfx::blackToPal(PalEntry *srcPal, double percent) {
// Used in IHNM only
void Gfx::palFade(PalEntry *srcPal, int16 from, int16 to, int16 start, int16 numColors, double percent) {
//short value, delta;
int i;
int i;
int new_entry;
byte *ppal;
PalEntry *palE;
double fpercent;
if (percent > 1.0)
percent = 1.0;
if (from > 256)
from = 256;
if (from < 0 )
from = 0;
if (to > 256)
to = 256;
if (to < 0)
to = 0;
percent = percent > 1.0 ? 1.0 : percent;
from = from > 256 ? 256 : from;
from = from < 0 ? 0 : from;
to = to > 256 ? 256 : to;
to = to < 0 ? 0 : to;
// Exponential fade
fpercent = percent * percent;
fpercent = 1.0 - fpercent;
if (from > to)
fpercent = 1.0 - fpercent;
// TODO: finish this
//delta = (from < to) ? +1 : -1;
if (percent == 0.0) // only display the warning once
warning("TODO: Gfx::palFade");
return; // Don't do anything for now
/*
for (value = from; value != to+delta; value += delta) {
// adjust palette color
// delay here
}
*/
//_vm->_frameCount++; // is this needed?
// TODO: finish this (it always fades to black!) -> use from and to
// Use the correct percentage change per frame for each palette entry
for (i = 0, ppal = _currentPal; i < PAL_ENTRIES; i++, ppal += 4) {
if (i < from || i >= from + numColors)
if (i < start || i >= start + numColors)
palE = &_globalPalette[i];
else
palE = &srcPal[i];