87 lines
1.4 KiB
Go
87 lines
1.4 KiB
Go
package world
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import (
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"fmt"
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"math/rand"
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"strconv"
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"strings"
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)
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type BlockPos struct {
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X int `json:"x"`
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Y uint `json:"y"`
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Z int `json:"z"`
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}
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func (b BlockPos) String() string {
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return fmt.Sprintf("BlockPos { X: %v, Y: %v, Z: %v }", b.X, b.Y, b.Z)
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}
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func RandomBlockPosWithRange(maxRange float64) BlockPos {
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return BlockPos{
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X: int(rand.NormFloat64() * maxRange),
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Y: uint(rand.NormFloat64() * maxRange),
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Z: int(rand.NormFloat64() * maxRange),
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}
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}
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func (b BlockPos) ToChunkPos() ChunkPos {
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return ChunkPos{
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X: b.X / 16,
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Z: b.Z / 16,
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}
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}
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type ChunkPos struct {
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X int `json:"x"`
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Z int `json:"z"`
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}
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func (cp ChunkPos) MarshalText() ([]byte, error) {
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return []byte(fmt.Sprintf("%d %d", cp.X, cp.Z)), nil
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}
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func (cp *ChunkPos) UnmarshalText(text []byte) error {
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words := strings.Split(string(text), " ")
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x, err := strconv.Atoi(words[0])
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if err != nil {
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return err
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}
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z, err := strconv.Atoi(words[1])
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if err != nil {
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return err
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}
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cp.X = x
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cp.Z = z
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return nil
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}
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func (cp ChunkPos) ToFileName() string {
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return fmt.Sprintf("p.%d.%d.chunk", cp.X, cp.Z)
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}
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func (cp ChunkPos) StringCoords() string {
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return fmt.Sprintf("%d, %d", cp.X, cp.Z)
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}
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type BlockID uint8
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const (
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Empty BlockID = iota
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Generic
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)
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func (id BlockID) String() string {
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switch id {
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case Empty:
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return "Empty"
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case Generic:
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return "Generic"
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default:
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panic(fmt.Sprintf("Unknown block id: %v", uint8(id)))
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}
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}
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