static void
readShadowLayer(Reader &reader, const Table &data,
int ox, int oy, int w, int h)
{
for (int y = 0; y < h; ++y)
for (int x = 0; x < w; ++x)
{
int16_t value = tableGetWrapped(data, x+ox, y+oy, 3);
onShadowTile(reader, value & 0xF, x, y);
}
}
void handleTile(int x, int y, int z)
{
int tileInd =
tableGetWrapped(mapData, x + viewpPos.x, y + viewpPos.y, z);
/* Check for empty space */
if (tileInd < 48)
return;
int prio = samplePriority(tileInd);
/* Check for faulty data */
if (prio == -1)
return;
SVVector *targetArray;
/* Prio 0 tiles are all part of the same ground layer */
if (prio == 0)
{
targetArray = &groundVert;
}
else
{
int scanInd = y + prio;
targetArray = &scanrowVert[scanInd];
}
/* Check for autotile */
if (tileInd < 48*8)
{
handleAutotile(x, y, tileInd, targetArray);
return;
}
int tsInd = tileInd - 48*8;
int tileX = tsInd % 8;
int tileY = tsInd / 8;
Vec2i texPos = TileAtlas::tileToAtlasCoor(tileX, tileY, atlas.efTilesetH, atlas.size.y);
FloatRect texRect((float) texPos.x+.5, (float) texPos.y+.5, 31, 31);
FloatRect posRect(x*32, y*32, 32, 32);
SVertex v[4];
Quad::setTexPosRect(v, texRect, posRect);
for (size_t i = 0; i < 4; ++i)
targetArray->push_back(v[i]);
}
static void
readLayer(Reader &reader, const Table &data,
const Table *flags, int ox, int oy, int w, int h, int z)
{
for (int y = 0; y < h; ++y)
for (int x = 0; x < w; ++x)
{
int16_t tileID = tableGetWrapped(data, x+ox, y+oy, z);
if (tileID <= 0)
continue;
onTile(reader, tileID, x, y, flags);
}
}
bool sampleFlashColor(Vec4 &out, int x, int y)
{
int16_t packed = tableGetWrapped(flashData, x, y);
if (packed == 0)
return false;
const float max = 0xF;
float b = ((packed & 0x000F) >> 0) / max;
float g = ((packed & 0x00F0) >> 4) / max;
float r = ((packed & 0x0F00) >> 8) / max;
out = Vec4(r, g, b, 1);
return true;
}