func startBlockUpdate(x, y, z int32) {
for X := x - 1; X <= x+1; X++ {
for Y := y - 1; Y <= y+1; Y++ {
for Z := z - 1; Z <= z+1; Z++ {
chunk := storage.GetChunkContaining(X, Z)
switch chunk.GetBlock(X, Y, Z) {
case block.Water, block.StationaryWater:
stopTheFloodingOMG := chunk.GetData(X, Y, Z)
chunk.SetBlock(X, Y, Z, block.Water)
chunk.SetData(X, Y, Z, stopTheFloodingOMG)
queueUpdate(X, Y, Z)
case block.Sponge:
queueUpdate(X, Y, Z)
case block.Gravel, block.Sand, block.LongGrass, block.RedFlower, block.YellowFlower:
queueUpdate(X, Y, Z)
}
storage.ReleaseChunkContaining(X, Z)
}
}
}
}
func GetBlockAt(x, y, z int32) block.BlockType {
if y < 0 || y > 255 {
return block.Air
}
chunk := storage.GetChunkContaining(x, z)
defer storage.ReleaseChunkContaining(x, z)
return chunk.GetBlock(x, y, z)
}
func ChunkGen(chunkX, chunkZ int32) *chunk.Chunk {
chunk := &chunk.Chunk{X: chunkX, Z: chunkZ}
r := rand.New(rand.NewSource(int64(uint32(chunkX))<<32 | int64(uint32(chunkZ))))
for x := chunkX << 4; x < (chunkX<<4)+16; x++ {
for z := chunkZ << 4; z < (chunkZ<<4)+16; z++ {
chunk.SetBlock(x, 0, z, block.Bedrock)
fx := float64(x) / 16
fz := float64(z) / 16
stone := int32(6 + 4*util.Noise2(fx, fz))
land := int32(58 + 8*util.Noise2(fx/10, fz/10))
mountain := util.Noise3(fx/15, float64(land)/15, fz/15)
isMountain := true
mountain -= 0.4
if mountain < 0 {
mountain = 0
isMountain = false
}
mountain *= 30
land += int32(mountain)
river := int32(river(util.Noise2(fx/4, fz/4)))
smooth := util.Noise2(fx/50, fz/50) * 3
rough := util.Noise2(fx*2, fz*2) * 2
for y := int32(1); y < land-stone; y++ {
chunk.SetBlock(x, y, z, block.Stone)
}
for y := land - stone; y < land; y++ {
chunk.SetBlock(x, y, z, block.Dirt)
}
if river != 0 {
chunk.SetBlock(x, 46-river, z, block.Gravel)
chunk.SetBlock(x, 47-river, z, block.Gravel)
chunk.SetBlock(x, 48-river, z, block.Gravel)
chunk.SetBlock(x, 49-river, z, block.Gravel)
}
for y := 50 - river; y < 50; y++ {
chunk.SetBlock(x, y, z, block.StationaryWater)
}
if river == 0 || land > 50 {
chunk.SetBlock(x, land, z, block.Grass)
if smooth < rough {
if r.Intn(8) == 0 {
fy := float64(land + 1)
if util.Noise3(fx/10, fy/2, fz/10) > 0 {
chunk.SetBlock(x, land+1, z, block.RedFlower)
} else {
chunk.SetBlock(x, land+1, z, block.YellowFlower)
}
} else {
chunk.SetBlock(x, land+1, z, block.LongGrass)
chunk.SetData(x, land+1, z, 1)
}
}
if smooth < rough/5 && mountain > 1 && r.Intn(20) == 0 {
growTree(chunk, r, x, land+1, z)
}
if isMountain {
chunk.SetBiome(x, z, protocol.ExtremeHills)
} else {
chunk.SetBiome(x, z, protocol.Plains)
}
} else {
chunk.SetBiome(x, z, protocol.River)
}
if river != 0 {
chunk.SetBlock(x, 50, z, block.Air)
for y := int32(51); y < 64 && r.Intn(20) != 0 && chunk.GetBlock(x, y, z) == block.Dirt; y++ {
chunk.SetBlock(x, y, z, block.Stone)
}
for y := int32(51); y < 64 && r.Intn(4) != 0 && chunk.GetBlock(x, y, z) == block.Stone; y++ {
chunk.SetBlock(x, y, z, block.Air)
}
}
}
}
chunk.InitLighting()
return chunk
}