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just backuppin' a working mapblock.cpp

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This commit is contained in:
Perttu Ahola 2011-01-15 13:07:10 +02:00
parent 3fb0d2fb65
commit 83e083a667
1 changed files with 23 additions and 9 deletions
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32
src/mapblock.cpp
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@ -864,8 +864,14 @@ void MapBlock::updateMesh(u32 daynight_ratio)
- SUGG: This could be optimized
Turns sunglighted mud into grass.
if remove_light==true, sets non-sunlighted nodes black.
if black_air_left!=NULL, it is set to true if non-sunlighted
air is left in block.
*/
bool MapBlock::propagateSunlight(core::map<v3s16, bool> & light_sources)
bool MapBlock::propagateSunlight(core::map<v3s16, bool> & light_sources,
bool remove_light, bool *black_air_left)
{
// Whether the sunlight at the top of the bottom block is valid
bool block_below_is_valid = true;
@ -959,19 +965,27 @@ bool MapBlock::propagateSunlight(core::map<v3s16, bool> & light_sources)
}
bool sunlight_should_go_down = (y==-1);
// Fill rest with black (only transparent ones)
for(; y >= 0; y--){
/*
Check rest through to the bottom of the block
*/
for(; y >= 0; y--)
{
v3s16 pos(x, y, z);
MapNode &n = getNodeRef(pos);
if(n.light_propagates())
{
n.setLight(LIGHTBANK_DAY, 0);
}
else{
break;
if(black_air_left)
{
*black_air_left = true;
}
if(remove_light)
{
// Fill transparent nodes with black
n.setLight(LIGHTBANK_DAY, 0);
}
}
}