73 lines
1.5 KiB
Go
73 lines
1.5 KiB
Go
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package world
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import (
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"encoding/gob"
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"io"
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"log"
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)
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const (
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ChunkSizeX = 16
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ChunkSizeY = 128
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ChunkSizeZ = 16
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)
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type Chunk struct {
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X, Z int // Chunk coordinate in global coordinate (y is always zero)
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Id, Aux [ChunkSizeX][ChunkSizeY][ChunkSizeZ]uint16
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// render data kept unexported (therefore excluded from gob encoding)
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renderChanged bool
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vao, vbo uint32
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vbolen int
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vertUpdate chan []Vertex
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}
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func (c *Chunk) SetChunkID(x, z int) {
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c.X = x
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c.Z = z
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c.renderChanged = true
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}
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func (c *Chunk) SetBlock(x, y, z int, id int) {
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c.Id[x][y][z] = uint16(id)
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c.renderChanged = true
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}
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// InvalidateRender should be called if a block inside the chunk has changed
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// and the chunk needs to re-rendered.
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func (c *Chunk) InvalidateRender() {
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c.renderChanged = true
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}
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// LoadFromGob loads the chunk from a gob-encoded file.
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func (c *Chunk) LoadFromGob(file io.Reader) {
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d := gob.NewDecoder(file)
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err := d.Decode(c)
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if err != nil {
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log.Print("LoadFromGob Error: ", err)
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}
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}
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// LoadFromGobIndexed loads the chunk from a gob-encoded file, with the
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// chunk Index overwritten.
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func (c *Chunk) LoadFromGobIndexed(file io.Reader, x, z int) {
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d := gob.NewDecoder(file)
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err := d.Decode(c)
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if err != nil {
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log.Printf("LoadFromGobIndexed(x=%d, z=%d) Error: %s", x, z, err)
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}
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c.X = x
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c.Z = z
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}
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// WriteToGob writes the chunk to a gob-encoded file.
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func (c *Chunk) WriteToGob(file io.Writer) {
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e := gob.NewEncoder(file)
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err := e.Encode(c)
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if err != nil {
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log.Printf("WriteToGob(x=%d, z=%d) Error: %s", c.X, c.Z, err)
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}
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}
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