func (w *World) Block(bc coords.Block) mapgen.Block {
chunk := w.chunks[bc.Chunk()]
if chunk == nil {
return mapgen.BLOCK_NIL
}
return chunk.Block(bc.Offset())
}
func (b *Box) inSolid(world mapgen.BlockSource) bool {
blockCollide := func(x, y, z int) bool {
blockCoord := coords.Block{x, y, z}
if world.Block(blockCoord).Solid() {
center := blockCoord.Center()
blockBox := NewBox(center.Vec3(), vmath.Vec3{0.5, 0.5, 0.5})
return b.Collides(blockBox)
}
return false
}
f := func(n float64) int {
return int(math.Floor(n))
}
xs := f(b.xs)
xe := f(b.xe)
ys := f(b.ys)
ye := f(b.ye)
zs := f(b.zs)
ze := f(b.ze)
for x := xs; x <= xe; x++ {
for y := ys; y <= ye; y++ {
for z := zs; z <= ze; z++ {
if blockCollide(x, y, z) {
return true
}
}
}
}
return false
}
func (w *World) ChangeBlock(bc coords.Block, newBlock mapgen.Block) {
chunk := w.Chunk(bc.Chunk())
oc := bc.Offset()
block := chunk.Block(oc)
chunk.SetBlock(oc, newBlock)
w.blockListeners.FireEvent("BlockChanged", bc, block, newBlock)
}
func (p *persister) BlockChanged(bc coords.Block, old mapgen.Block, new mapgen.Block) {
cc := bc.Chunk()
chunk, err := p.loadChunk(cc)
if err != nil {
log.Println("Applying block change: ", err)
return
}
chunk.SetBlock(bc.Offset(), new)
err = p.saveChunk(cc, chunk)
if err != nil {
log.Println("Applying block change: ", err)
return
}
}
func (ct *CaveTest) block(bc coords.Block, height int) mapgen.Block {
if bc.X == 0 && bc.Y == 16 && bc.Z == 0 {
return mapgen.BLOCK_SPAWN
}
if bc.Y > height {
return mapgen.BLOCK_AIR
}
// Calculate a cave
xf, yf, zf := bc.Float64()
ridge1 := ct.ridgedFilter.Filter(xf, yf, zf, ct.simplexNoise)
ridge2 := ct.ridgedFilter.Filter(xf, yf, zf, ct.simplexNoise2)
if ridge1 >= 0.95 {
ridge1 = 1
} else {
ridge1 = 0
}
if ridge2 >= 0.95 {
ridge2 = 1
} else {
ridge2 = 0
}
if ridge1*ridge2 == 1 {
if DEBUG {
return mapgen.BLOCK_STONE
}
return mapgen.BLOCK_AIR
}
if bc.Y == height {
if DEBUG {
return mapgen.BLOCK_GLASS
}
return mapgen.BLOCK_GRASS
}
if DEBUG {
return mapgen.BLOCK_AIR
}
if bc.Y < height-3 {
return mapgen.BLOCK_STONE
}
if height > bc.Y {
return mapgen.BLOCK_DIRT
}
return mapgen.BLOCK_AIR
}
// Applies the given block change to the currently queued chunks
// Returns true if the change was applied (the block has not yet been
// sent), false if it should be sent to the client instead (they already
// have the chunk).
// This is needed to avoid sending stale chunks to the client.
func (cm *ChunkManager) ApplyBlockChange(bc coords.Block, b mapgen.Block) bool {
cm.mutex.Lock()
defer cm.mutex.Unlock()
cc := bc.Chunk()
status, exists := cm.chunks[cc]
if !exists {
// We don't techincally apply the block change to ourselves if the
// chunk does not exist in our list, but we don't want it to be sent
// to the client, so we return false regardless.
return false
}
if status.sent {
return false
}
if status.data == nil {
log.Println("WARN: Recieved block change for chunk that is not loaded (this probably shouldn't happen?)")
return false
}
oc := bc.Offset()
status.data.SetBlock(oc, b)
return true
}