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Fix genmaps palette problem

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This commit is contained in:
Tnze
2021-03-13 11:45:19 +08:00
parent 24c057da26
commit c0c03e25e0
2 changed files with 29 additions and 8 deletions
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28
examples/genmaps/genmaps.go
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@ -10,6 +10,7 @@ import (
"image/color"
"image/draw"
"log"
"math"
"os"
"path/filepath"
"runtime"
@ -85,10 +86,10 @@ func main() {
if err := column.Load(task.data); err != nil {
log.Printf("Decode column (%d.%d) error: %v", task.pos[0], task.pos[1], err)
}
pos := [2]int{int(column.Level.PosX), int(column.Level.PosZ)}
if pos != task.pos {
fmt.Printf("chunk position not match: want %v, get %v\n", task.pos, pos)
}
//pos := [2]int{int(column.Level.PosX), int(column.Level.PosZ)}
//if pos != task.pos {
// fmt.Printf("chunk position not match: want %v, get %v\n", task.pos, pos)
//}
draw.Draw(
img, image.Rect(task.pos[0]*16, task.pos[1]*16, task.pos[0]*16+16, task.pos[1]*16+16),
drawColumn(&column), image.Pt(0, 0),
@ -145,13 +146,13 @@ func drawColumn(column *save.Column) (img *image.RGBA) {
func drawSection(s *save.Chunk, img *image.RGBA) {
// calculate bits per block
bpb := len(s.BlockStates) * 64 / (16 * 16 * 16)
//bpb := len(s.BlockStates) * 64 / (16 * 16 * 16)
// skip empty
if len(s.BlockStates) == 0 {
return
}
// decode section
//n := int(math.Max(4, math.Ceil(math.Log2(float64(len(s.Palette))))))
bpb := int(math.Max(4, math.Ceil(math.Log2(float64(len(s.Palette))))))
// decode status
data := *(*[]uint64)(unsafe.Pointer(&s.BlockStates)) // convert []int64 into []uint64
@ -159,8 +160,19 @@ func drawSection(s *save.Chunk, img *image.RGBA) {
for y := 0; y < 16; y++ {
layerImg := image.NewRGBA(image.Rect(0, 0, 16, 16))
for i := 16*16 - 1; i >= 0; i-- {
b := block.ByID[block.StateID[uint32(bs.Get(y*16*16+i))]]
c := colors[b.ID]
var bid block.ID
switch {
case bpb > 9:
bid = block.StateID[uint32(bs.Get(y*16*16+i))]
case bpb > 4:
fallthrough
case bpb <= 4:
b := s.Palette[bs.Get(y*16*16+i)]
if id, ok := idByName[b.Name]; ok {
bid = block.StateID[id]
}
}
c := colors[block.ByID[bid].ID]
layerImg.Set(i/16, i%16, c)
}
draw.Draw(