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Lighting: Update lighting at block loading

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This commit updates mapblocks' light if necessary when they are loaded.
This removes ghost lighting.
This commit is contained in:
Dániel Juhász 2016-10-27 23:25:44 +02:00 • committed by paramat
parent 2bd10022cb
commit f17c9c45dc
7 changed files with 274 additions and 122 deletions
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62
src/mapblock.h
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@ -105,7 +105,7 @@ public:
#define MOD_REASON_INITIAL (1 << 0)
#define MOD_REASON_REALLOCATE (1 << 1)
#define MOD_REASON_SET_IS_UNDERGROUND (1 << 2)
#define MOD_REASON_SET_LIGHTING_EXPIRED (1 << 3)
#define MOD_REASON_SET_LIGHTING_COMPLETE (1 << 3)
#define MOD_REASON_SET_GENERATED (1 << 4)
#define MOD_REASON_SET_NODE (1 << 5)
#define MOD_REASON_SET_NODE_NO_CHECK (1 << 6)
@ -213,17 +213,42 @@ public:
raiseModified(MOD_STATE_WRITE_NEEDED, MOD_REASON_SET_IS_UNDERGROUND);
}
inline void setLightingExpired(bool expired)
inline void setLightingComplete(u16 newflags)
{
if (expired != m_lighting_expired){
m_lighting_expired = expired;
raiseModified(MOD_STATE_WRITE_NEEDED, MOD_REASON_SET_LIGHTING_EXPIRED);
if (newflags != m_lighting_complete) {
m_lighting_complete = newflags;
raiseModified(MOD_STATE_WRITE_NEEDED, MOD_REASON_SET_LIGHTING_COMPLETE);
}
}
inline bool getLightingExpired()
inline u16 getLightingComplete()
{
return m_lighting_expired;
return m_lighting_complete;
}
inline void setLightingComplete(LightBank bank, u8 direction,
bool is_complete)
{
assert(direction >= 0 && direction <= 5);
if (bank == LIGHTBANK_NIGHT) {
direction += 6;
}
u16 newflags = m_lighting_complete;
if (is_complete) {
newflags |= 1 << direction;
} else {
newflags &= ~(1 << direction);
}
setLightingComplete(newflags);
}
inline bool isLightingComplete(LightBank bank, u8 direction)
{
assert(direction >= 0 && direction <= 5);
if (bank == LIGHTBANK_NIGHT) {
direction += 6;
}
return (m_lighting_complete & (1 << direction)) != 0;
}
inline bool isGenerated()
@ -239,15 +264,6 @@ public:
}
}
inline bool isValid()
{
if (m_lighting_expired)
return false;
if (data == NULL)
return false;
return true;
}
////
//// Position stuff
////
@ -613,14 +629,14 @@ private:
*/
bool is_underground;
/*
Set to true if changes has been made that make the old lighting
values wrong but the lighting hasn't been actually updated.
If this is false, lighting is exactly right.
If this is true, lighting might be wrong or right.
/*!
* Each bit indicates if light spreading was finished
* in a direction. (Because the neighbor could also be unloaded.)
* Bits: day X+, day Y+, day Z+, day Z-, day Y-, day X-,
* night X+, night Y+, night Z+, night Z-, night Y-, night X-,
* nothing, nothing, nothing, nothing.
*/
bool m_lighting_expired;
u16 m_lighting_complete;
// Whether day and night lighting differs
bool m_day_night_differs;