diff options
Diffstat (limited to 'src/World.cpp')
| -rw-r--r-- | src/World.cpp | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/src/World.cpp b/src/World.cpp index 67abc02..75e0b3f 100644 --- a/src/World.cpp +++ b/src/World.cpp @@ -395,4 +395,117 @@ Entity* World::GetEntityPtr(unsigned int EntityId) { } entitiesMutex.unlock(); return nullptr; +} + +unsigned char World::GetBlockLight(Vector pos) +{ + Vector sectionPos(std::floor(pos.x / 16.0), + std::floor(pos.y / 16.0), + std::floor(pos.z / 16.0)); + + Vector blockPos = pos - (sectionPos * 16); + + Section* section = GetSectionPtr(sectionPos); + Section* yp = GetSectionPtr(sectionPos + Vector(0, 1, 0)); + Section* yn = GetSectionPtr(sectionPos + Vector(0, -1, 0)); + Section* xp = GetSectionPtr(sectionPos + Vector(1, 0, 0)); + Section* xn = GetSectionPtr(sectionPos + Vector(-1, 0, 0)); + Section* zp = GetSectionPtr(sectionPos + Vector(0, 0, 1)); + Section* zn = GetSectionPtr(sectionPos + Vector(0, 0, -1)); + + if (!section) + return 0; + + Vector directions[] = { + Vector(0,0,0), + Vector(1,0,0), + Vector(-1,0,0), + Vector(0,1,0), + Vector(0,-1,0), + Vector(0,0,1), + Vector(0,0,-1), + }; + + unsigned char value = 0; + + for (const Vector &dir : directions) { + Vector vec = blockPos + dir; + unsigned char dirValue = 0; + + if (vec.x < 0 || vec.x > 15 || vec.y < 0 || vec.y > 15 || vec.z < 0 || vec.z > 15) { + if (vec.x < 0 && xn) + dirValue = xn->GetBlockLight(Vector(15, vec.y, vec.z)); + if (vec.x > 15 && xp) + dirValue = xp->GetBlockLight(Vector(0, vec.y, vec.z)); + if (vec.y < 0 && yn) + dirValue = yn->GetBlockLight(Vector(vec.x, 15, vec.z)); + if (vec.y > 15 && yp) + dirValue = yp->GetBlockLight(Vector(vec.x, 0, vec.z)); + if (vec.z < 0 && zn) + dirValue = zn->GetBlockLight(Vector(vec.x, vec.y, 15)); + if (vec.z > 15 && zp) + dirValue = zp->GetBlockLight(Vector(vec.x, vec.y, 0)); + } else + dirValue = section->GetBlockLight(vec); + + value = _max(value, dirValue); + } + return value; +} + +unsigned char World::GetBlockSkyLight(Vector pos) +{ + Vector sectionPos( std::floor(pos.x / 16.0), + std::floor(pos.y / 16.0), + std::floor(pos.z / 16.0)); + + Vector blockPos = pos - (sectionPos * 16); + + Section* section = GetSectionPtr(sectionPos); + Section* yp = GetSectionPtr(sectionPos + Vector(0, 1, 0)); + Section* yn = GetSectionPtr(sectionPos + Vector(0, -1, 0)); + Section* xp = GetSectionPtr(sectionPos + Vector(1, 0, 0)); + Section* xn = GetSectionPtr(sectionPos + Vector(-1, 0, 0)); + Section* zp = GetSectionPtr(sectionPos + Vector(0, 0, 1)); + Section* zn = GetSectionPtr(sectionPos + Vector(0, 0, -1)); + + if (!section) + return 0; + + Vector directions[] = { + Vector(0,0,0), + Vector(1,0,0), + Vector(-1,0,0), + Vector(0,1,0), + Vector(0,-1,0), + Vector(0,0,1), + Vector(0,0,-1), + }; + + unsigned char value = 0; + + for (const Vector &dir : directions) { + Vector vec = blockPos + dir; + unsigned char dirValue = 0; + + if (vec.x < 0 || vec.x > 15 || vec.y < 0 || vec.y > 15 || vec.z < 0 || vec.z > 15) { + if (vec.x < 0 && xn) + dirValue = xn->GetBlockSkyLight(Vector(15, vec.y, vec.z)); + if (vec.x > 15 && xp) + dirValue = xp->GetBlockSkyLight(Vector(0, vec.y, vec.z)); + if (vec.y < 0 && yn) + dirValue = yn->GetBlockSkyLight(Vector(vec.x, 15, vec.z)); + if (vec.y > 15 && yp) + dirValue = yp->GetBlockSkyLight(Vector(vec.x, 0, vec.z)); + if (vec.z < 0 && zn) + dirValue = zn->GetBlockSkyLight(Vector(vec.x, vec.y, 15)); + if (vec.z > 15 && zp) + dirValue = zp->GetBlockSkyLight(Vector(vec.x, vec.y, 0)); + } + else + dirValue = section->GetBlockSkyLight(vec); + + value = _max(value, dirValue); + } + return value; }
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