falloutBot/go-mc
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add GetBlock function

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This commit is contained in:
Tnze
2020-05-17 14:45:27 +08:00
parent eba832b424
commit fa75535f37
2 changed files with 24 additions and 29 deletions
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43
bot/world/world.go
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@ -4,22 +4,24 @@ import (
"github.com/Tnze/go-mc/bot/world/entity"
)
//World record all of the things in the world where player at
// World record all of the things in the world where player at
type World struct {
Entities map[int32]entity.Entity
Chunks map[ChunkLoc]*Chunk
}
//Chunk store a 256*16*16 column blocks
// Chunk store a 256*16*16 column blocks
type Chunk struct {
sections [16]Section
Sections [16]Section
}
//Section store a 16*16*16 cube blocks
// Section store a 16*16*16 cube blocks
type Section interface {
GetBlock(x, y, z int) (blockID uint32)
GetBlock(x, y, z int) BlockStatus
}
type BlockStatus uint32
type ChunkLoc struct {
X, Z int
}
@ -42,25 +44,18 @@ type ChunkLoc struct {
// East
// )
// // getBlock return the block in the position (x, y, z)
// func (w *world) getBlock(x, y, z int) Block {
// c := w.chunks[chunkLoc{x >> 4, z >> 4}]
// if c != nil {
// cx, cy, cz := x&15, y&15, z&15
// /*
// n = n&(16-1)
// is equal to
// n %= 16
// if n < 0 { n += 16 }
// */
// return c.sections[y/16].blocks[cx][cy][cz]
// }
// return Block{id: 0}
// }
// getBlock return the block in the position (x, y, z)
func (w *World) GetBlockStatus(x, y, z int) BlockStatus {
// Use n>>4 rather then n/16. It acts wrong if n<0.
c := w.Chunks[ChunkLoc{x >> 4, z >> 4}]
if c != nil {
// (n&(16-1)) == (n<0 ? n%16+16 : n%16)
if sec := c.Sections[y>>4]; sec != nil {
return sec.GetBlock(x&15, y&15, z&15)
}
}
return 0
}
// func (b Block) String() string {
// return blockNameByID[b.id]