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Merge branch 'master' into data-encoding2

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gravestench 2021-02-10 11:52:00 -08:00 committed by GitHub
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9 changed files with 506 additions and 129 deletions
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69
d2common/d2datautils/stream_writer.go
View File

@ -1,10 +1,15 @@
package d2datautils
import "bytes"
import (
"bytes"
"log"
)
// StreamWriter allows you to create a byte array by streaming in writes of various sizes
type StreamWriter struct {
data *bytes.Buffer
data *bytes.Buffer
bitOffset int
bitCache byte
}
// CreateStreamWriter creates a new StreamWriter instance
@ -28,6 +33,66 @@ func (v *StreamWriter) PushBytes(b ...byte) {
}
}
// PushBit pushes single bit into stream
// WARNING: if you'll use PushBit, offset'll be less than 8, and if you'll
// use another Push... method, bits'll not be pushed
func (v *StreamWriter) PushBit(b bool) {
if b {
v.bitCache |= (1 << v.bitOffset)
}
v.bitOffset++
if v.bitOffset != bitsPerByte {
return
}
v.PushBytes(v.bitCache)
v.bitCache = 0
v.bitOffset = 0
}
// PushBits pushes bits (with max range 8)
func (v *StreamWriter) PushBits(b byte, bits int) {
if bits > bitsPerByte {
log.Print("input bits number must be less (or equal) than 8")
}
val := b
for i := 0; i < bits; i++ {
v.PushBit(val&1 == 1)
val >>= 1
}
}
// PushBits16 pushes bits (with max range 16)
func (v *StreamWriter) PushBits16(b uint16, bits int) {
if bits > bitsPerByte*bytesPerint16 {
log.Print("input bits number must be less (or equal) than 16")
}
val := b
for i := 0; i < bits; i++ {
v.PushBit(val&1 == 1)
val >>= 1
}
}
// PushBits32 pushes bits (with max range 32)
func (v *StreamWriter) PushBits32(b uint32, bits int) {
if bits > bitsPerByte*bytesPerint32 {
log.Print("input bits number must be less (or equal) than 32")
}
val := b
for i := 0; i < bits; i++ {
v.PushBit(val&1 == 1)
val >>= 1
}
}
// PushInt16 writes a int16 word to the stream
func (v *StreamWriter) PushInt16(val int16) {
v.PushUint16(uint16(val))

59
d2common/d2datautils/stream_writer_test.go
View File

@ -4,6 +4,65 @@ import (
"testing"
)
func TestStreamWriterBits(t *testing.T) {
sr := CreateStreamWriter()
data := []byte{221, 19}
for _, i := range data {
sr.PushBits(i, bitsPerByte)
}
output := sr.GetBytes()
for i, d := range data {
if output[i] != d {
t.Fatalf("sr.PushBits() pushed %X, but wrote %X instead", d, output[i])
}
}
}
func TestStreamWriterBits16(t *testing.T) {
sr := CreateStreamWriter()
data := []uint16{1024, 19}
for _, i := range data {
sr.PushBits16(i, bitsPerByte*bytesPerint16)
}
output := sr.GetBytes()
for i, d := range data {
// nolint:gomnd // offset in byte slice; bit shifts for uint16
outputInt := uint16(output[bytesPerint16*i]) |
uint16(output[bytesPerint16*i+1])<<8
if outputInt != d {
t.Fatalf("sr.PushBits16() pushed %X, but wrote %X instead", d, output[i])
}
}
}
func TestStreamWriterBits32(t *testing.T) {
sr := CreateStreamWriter()
data := []uint32{19324, 87}
for _, i := range data {
sr.PushBits32(i, bitsPerByte*bytesPerint32)
}
output := sr.GetBytes()
for i, d := range data {
// nolint:gomnd // offset in byte slice; bit shifts for uint32
outputInt := uint32(output[bytesPerint32*i]) |
uint32(output[bytesPerint32*i+1])<<8 |
uint32(output[bytesPerint32*i+2])<<16 |
uint32(output[bytesPerint32*i+3])<<24
if outputInt != d {
t.Fatalf("sr.PushBits32() pushed %X, but wrote %X instead", d, output[i])
}
}
}
func TestStreamWriterByte(t *testing.T) {
sr := CreateStreamWriter()
data := []byte{0x12, 0x34, 0x56, 0x78}

18
d2common/d2fileformats/d2cof/cof.go
View File

@ -121,7 +121,6 @@ func (c *COF) Unmarshal(fileData []byte) error {
layer.Transparent = b[layerTransparent] > 0
layer.DrawEffect = d2enum.DrawEffect(b[layerDrawEffect])
layer.weaponClassByte = b[layerWeaponClass:]
layer.WeaponClass = d2enum.WeaponClassFromString(strings.TrimSpace(strings.ReplaceAll(
string(b[layerWeaponClass:]), badCharacter, "")))
@ -193,7 +192,22 @@ func (c *COF) Marshal() []byte {
sw.PushBytes(byte(c.CofLayers[i].DrawEffect))
sw.PushBytes(c.CofLayers[i].weaponClassByte...)
const (
maxCodeLength = 3 // we assume item codes to look like 'hax' or 'kit'
terminator = 0
)
weaponCode := c.CofLayers[i].WeaponClass.String()
for idx, letter := range weaponCode {
if idx > maxCodeLength {
break
}
sw.PushBytes(byte(letter))
}
sw.PushBytes(terminator)
}
for _, i := range c.AnimationFrames {

13
d2common/d2fileformats/d2cof/cof_layer.go
View File

@ -4,11 +4,10 @@ import "github.com/OpenDiablo2/OpenDiablo2/d2common/d2enum"
// CofLayer is a structure that represents a single layer in a COF file.
type CofLayer struct {
Type d2enum.CompositeType
Shadow byte
Selectable bool
Transparent bool
DrawEffect d2enum.DrawEffect
WeaponClass d2enum.WeaponClass
weaponClassByte []byte
Type d2enum.CompositeType
Shadow byte
Selectable bool
Transparent bool
DrawEffect d2enum.DrawEffect
WeaponClass d2enum.WeaponClass
}

373
d2common/d2fileformats/d2ds1/ds1.go
View File

@ -9,22 +9,32 @@ import (
)
const (
maxActNumber = 5
subType1 = 1
subType2 = 2
v2 = 2
v3 = 3
v4 = 4
v7 = 7
v8 = 8
v9 = 9
v10 = 10
v12 = 12
v13 = 13
v14 = 14
v15 = 15
v16 = 16
v18 = 18
subType1 = 1
subType2 = 2
v2 = 2
v3 = 3
v4 = 4
v7 = 7
v8 = 8
v9 = 9
v10 = 10
v12 = 12
v13 = 13
v14 = 14
v15 = 15
v16 = 16
v18 = 18
)
const (
wallZeroBitmask = 0xFFFFFF00
wallZeroOffset = 8
wallTypeBitmask = 0x000000FF
)
const (
unknown1BytesCount = 8
)
// DS1 represents the "stamp" data that is used to build up maps.
@ -43,10 +53,13 @@ type DS1 struct {
NumberOfShadowLayers int32 // ShadowNum number of shadow layer used
NumberOfSubstitutionLayers int32 // SubstitutionNum number of substitution layer used
SubstitutionGroupsNum int32 // SubstitutionGroupsNum number of substitution groups, datas between objects & NPC paths
unknown1 []byte
layerStreamTypes []d2enum.LayerStreamType
unknown2 uint32
npcIndexes []int
}
// LoadDS1 loads the specified DS1 file
//nolint:funlen,gocognit,gocyclo // will refactor later
func LoadDS1(fileData []byte) (*DS1, error) {
ds1 := &DS1{
Act: 1,
@ -60,74 +73,17 @@ func LoadDS1(fileData []byte) (*DS1, error) {
var err error
ds1.Version, err = br.ReadInt32()
err = ds1.loadHeader(br)
if err != nil {
return nil, err
}
ds1.Width, err = br.ReadInt32()
if err != nil {
return nil, err
}
ds1.Height, err = br.ReadInt32()
if err != nil {
return nil, err
}
ds1.Width++
ds1.Height++
if ds1.Version >= v8 {
ds1.Act, err = br.ReadInt32()
if err != nil {
return nil, err
}
ds1.Act = d2math.MinInt32(maxActNumber, ds1.Act+1)
}
if ds1.Version >= v10 {
ds1.SubstitutionType, err = br.ReadInt32()
if err != nil {
return nil, err
}
if ds1.SubstitutionType == 1 || ds1.SubstitutionType == 2 {
ds1.NumberOfSubstitutionLayers = 1
}
}
if ds1.Version >= v3 {
// These files reference things that don't exist anymore :-?
numberOfFiles, err := br.ReadInt32() //nolint:govet // i want to re-use the err variable...
if err != nil {
return nil, err
}
ds1.Files = make([]string, numberOfFiles)
for i := 0; i < int(numberOfFiles); i++ {
ds1.Files[i] = ""
for {
ch, err := br.ReadByte()
if err != nil {
return nil, err
}
if ch == 0 {
break
}
ds1.Files[i] += string(ch)
}
}
}
if ds1.Version >= v9 && ds1.Version <= v13 {
// Skipping two dwords because they are "meaningless"?
br.SkipBytes(8) //nolint:gomnd // We don't know what's here
ds1.unknown1, err = br.ReadBytes(unknown1BytesCount)
if err != nil {
return nil, err
}
}
if ds1.Version >= v4 {
@ -146,7 +102,7 @@ func LoadDS1(fileData []byte) (*DS1, error) {
}
}
layerStream := ds1.setupStreamLayerTypes()
ds1.layerStreamTypes = ds1.setupStreamLayerTypes()
ds1.Tiles = make([][]TileRecord, ds1.Height)
@ -160,7 +116,7 @@ func LoadDS1(fileData []byte) (*DS1, error) {
}
}
err = ds1.loadLayerStreams(br, layerStream)
err = ds1.loadLayerStreams(br)
if err != nil {
return nil, err
}
@ -183,6 +139,86 @@ func LoadDS1(fileData []byte) (*DS1, error) {
return ds1, nil
}
func (ds1 *DS1) loadHeader(br *d2datautils.StreamReader) error {
var err error
ds1.Version, err = br.ReadInt32()
if err != nil {
return err
}
ds1.Width, err = br.ReadInt32()
if err != nil {
return err
}
ds1.Height, err = br.ReadInt32()
if err != nil {
return err
}
ds1.Width++
ds1.Height++
if ds1.Version >= v8 {
ds1.Act, err = br.ReadInt32()
if err != nil {
return err
}
ds1.Act = d2math.MinInt32(d2enum.ActsNumber, ds1.Act+1)
}
if ds1.Version >= v10 {
ds1.SubstitutionType, err = br.ReadInt32()
if err != nil {
return err
}
if ds1.SubstitutionType == 1 || ds1.SubstitutionType == 2 {
ds1.NumberOfSubstitutionLayers = 1
}
}
err = ds1.loadFileList(br)
if err != nil {
return err
}
return nil
}
func (ds1 *DS1) loadFileList(br *d2datautils.StreamReader) error {
if ds1.Version >= v3 {
// These files reference things that don't exist anymore :-?
numberOfFiles, err := br.ReadInt32()
if err != nil {
return err
}
ds1.Files = make([]string, numberOfFiles)
for i := 0; i < int(numberOfFiles); i++ {
ds1.Files[i] = ""
for {
ch, err := br.ReadByte()
if err != nil {
return err
}
if ch == 0 {
break
}
ds1.Files[i] += string(ch)
}
}
}
return nil
}
func (ds1 *DS1) loadObjects(br *d2datautils.StreamReader) error {
if ds1.Version < v2 {
ds1.Objects = make([]Object, 0)
@ -245,7 +281,10 @@ func (ds1 *DS1) loadSubstitutions(br *d2datautils.StreamReader) error {
}
if ds1.Version >= v18 {
_, _ = br.ReadUInt32()
ds1.unknown2, err = br.ReadUInt32()
if err != nil {
return err
}
}
numberOfSubGroups, err := br.ReadInt32()
@ -340,17 +379,17 @@ func (ds1 *DS1) loadNPCs(br *d2datautils.StreamReader) error {
}
for npcIdx := 0; npcIdx < int(numberOfNpcs); npcIdx++ {
numPaths, err := br.ReadInt32() //nolint:govet // i want to re-use the err variable...
numPaths, err := br.ReadInt32() // nolint:govet // I want to re-use this error variable
if err != nil {
return err
}
npcX, err := br.ReadInt32() //nolint:govet // i want to re-use the err variable...
npcX, err := br.ReadInt32()
if err != nil {
return err
}
npcY, err := br.ReadInt32() //nolint:govet // i want to re-use the err variable...
npcY, err := br.ReadInt32()
if err != nil {
return err
}
@ -360,6 +399,8 @@ func (ds1 *DS1) loadNPCs(br *d2datautils.StreamReader) error {
for idx, ds1Obj := range ds1.Objects {
if ds1Obj.X == int(npcX) && ds1Obj.Y == int(npcY) {
objIdx = idx
ds1.npcIndexes = append(ds1.npcIndexes, idx)
break
}
}
@ -418,7 +459,7 @@ func (ds1 *DS1) loadNpcPaths(br *d2datautils.StreamReader, objIdx, numPaths int)
return err
}
func (ds1 *DS1) loadLayerStreams(br *d2datautils.StreamReader, layerStream []d2enum.LayerStreamType) error {
func (ds1 *DS1) loadLayerStreams(br *d2datautils.StreamReader) error {
var err error
var dirLookup = []int32{
@ -427,8 +468,8 @@ func (ds1 *DS1) loadLayerStreams(br *d2datautils.StreamReader, layerStream []d2e
0x0F, 0x10, 0x11, 0x12, 0x14,
}
for lIdx := range layerStream {
layerStreamType := layerStream[lIdx]
for lIdx := range ds1.layerStreamTypes {
layerStreamType := ds1.layerStreamTypes[lIdx]
for y := 0; y < int(ds1.Height); y++ {
for x := 0; x < int(ds1.Width); x++ {
@ -440,16 +481,11 @@ func (ds1 *DS1) loadLayerStreams(br *d2datautils.StreamReader, layerStream []d2e
switch layerStreamType {
case d2enum.LayerStreamWall1, d2enum.LayerStreamWall2, d2enum.LayerStreamWall3, d2enum.LayerStreamWall4:
wallIndex := int(layerStreamType) - int(d2enum.LayerStreamWall1)
ds1.Tiles[y][x].Walls[wallIndex].Prop1 = byte(dw & 0x000000FF) //nolint:gomnd // Bitmask
ds1.Tiles[y][x].Walls[wallIndex].Sequence = byte((dw & 0x00003F00) >> 8) //nolint:gomnd // Bitmask
ds1.Tiles[y][x].Walls[wallIndex].Unknown1 = byte((dw & 0x000FC000) >> 14) //nolint:gomnd // Bitmask
ds1.Tiles[y][x].Walls[wallIndex].Style = byte((dw & 0x03F00000) >> 20) //nolint:gomnd // Bitmask
ds1.Tiles[y][x].Walls[wallIndex].Unknown2 = byte((dw & 0x7C000000) >> 26) //nolint:gomnd // Bitmask
ds1.Tiles[y][x].Walls[wallIndex].Hidden = byte((dw&0x80000000)>>31) > 0 //nolint:gomnd // Bitmask
ds1.Tiles[y][x].Walls[wallIndex].Decode(dw)
case d2enum.LayerStreamOrientation1, d2enum.LayerStreamOrientation2,
d2enum.LayerStreamOrientation3, d2enum.LayerStreamOrientation4:
wallIndex := int(layerStreamType) - int(d2enum.LayerStreamOrientation1)
c := int32(dw & 0x000000FF) //nolint:gomnd // Bitmask
c := int32(dw & wallTypeBitmask)
if ds1.Version < v7 {
if c < int32(len(dirLookup)) {
@ -458,22 +494,12 @@ func (ds1 *DS1) loadLayerStreams(br *d2datautils.StreamReader, layerStream []d2e
}
ds1.Tiles[y][x].Walls[wallIndex].Type = d2enum.TileType(c)
ds1.Tiles[y][x].Walls[wallIndex].Zero = byte((dw & 0xFFFFFF00) >> 8) //nolint:gomnd // Bitmask
ds1.Tiles[y][x].Walls[wallIndex].Zero = byte((dw & wallZeroBitmask) >> wallZeroOffset)
case d2enum.LayerStreamFloor1, d2enum.LayerStreamFloor2:
floorIndex := int(layerStreamType) - int(d2enum.LayerStreamFloor1)
ds1.Tiles[y][x].Floors[floorIndex].Prop1 = byte(dw & 0x000000FF) //nolint:gomnd // Bitmask
ds1.Tiles[y][x].Floors[floorIndex].Sequence = byte((dw & 0x00003F00) >> 8) //nolint:gomnd // Bitmask
ds1.Tiles[y][x].Floors[floorIndex].Unknown1 = byte((dw & 0x000FC000) >> 14) //nolint:gomnd // Bitmask
ds1.Tiles[y][x].Floors[floorIndex].Style = byte((dw & 0x03F00000) >> 20) //nolint:gomnd // Bitmask
ds1.Tiles[y][x].Floors[floorIndex].Unknown2 = byte((dw & 0x7C000000) >> 26) //nolint:gomnd // Bitmask
ds1.Tiles[y][x].Floors[floorIndex].Hidden = byte((dw&0x80000000)>>31) > 0 //nolint:gomnd // Bitmask
ds1.Tiles[y][x].Floors[floorIndex].Decode(dw)
case d2enum.LayerStreamShadow:
ds1.Tiles[y][x].Shadows[0].Prop1 = byte(dw & 0x000000FF) //nolint:gomnd // Bitmask
ds1.Tiles[y][x].Shadows[0].Sequence = byte((dw & 0x00003F00) >> 8) //nolint:gomnd // Bitmask
ds1.Tiles[y][x].Shadows[0].Unknown1 = byte((dw & 0x000FC000) >> 14) //nolint:gomnd // Bitmask
ds1.Tiles[y][x].Shadows[0].Style = byte((dw & 0x03F00000) >> 20) //nolint:gomnd // Bitmask
ds1.Tiles[y][x].Shadows[0].Unknown2 = byte((dw & 0x7C000000) >> 26) //nolint:gomnd // Bitmask
ds1.Tiles[y][x].Shadows[0].Hidden = byte((dw&0x80000000)>>31) > 0 //nolint:gomnd // Bitmask
ds1.Tiles[y][x].Shadows[0].Decode(dw)
case d2enum.LayerStreamSubstitute:
ds1.Tiles[y][x].Substitutions[0].Unknown = dw
}
@ -483,3 +509,134 @@ func (ds1 *DS1) loadLayerStreams(br *d2datautils.StreamReader, layerStream []d2e
return err
}
// Marshal encodes ds1 back to byte slice
func (ds1 *DS1) Marshal() []byte {
// create stream writer
sw := d2datautils.CreateStreamWriter()
// Step 1 - encode header
sw.PushInt32(ds1.Version)
sw.PushInt32(ds1.Width - 1)
sw.PushInt32(ds1.Height - 1)
if ds1.Version >= v8 {
sw.PushInt32(ds1.Act - 1)
}
if ds1.Version >= v10 {
sw.PushInt32(ds1.SubstitutionType)
}
if ds1.Version >= v3 {
sw.PushInt32(int32(len(ds1.Files)))
for _, i := range ds1.Files {
sw.PushBytes([]byte(i)...)
// separator
sw.PushBytes(0)
}
}
if ds1.Version >= v9 && ds1.Version <= v13 {
sw.PushBytes(ds1.unknown1...)
}
if ds1.Version >= v4 {
sw.PushInt32(ds1.NumberOfWalls)
if ds1.Version >= v16 {
sw.PushInt32(ds1.NumberOfFloors)
}
}
// Step 2 - encode layers
ds1.encodeLayers(sw)
// Step 3 - encode objects
if !(ds1.Version < v2) {
sw.PushInt32(int32(len(ds1.Objects)))
for _, i := range ds1.Objects {
sw.PushUint32(uint32(i.Type))
sw.PushUint32(uint32(i.ID))
sw.PushUint32(uint32(i.X))
sw.PushUint32(uint32(i.Y))
sw.PushUint32(uint32(i.Flags))
}
}
// Step 4 - encode substitutions
if ds1.Version >= v12 && (ds1.SubstitutionType == subType1 || ds1.SubstitutionType == subType2) {
sw.PushUint32(ds1.unknown2)
sw.PushUint32(uint32(len(ds1.SubstitutionGroups)))
for _, i := range ds1.SubstitutionGroups {
sw.PushInt32(i.TileX)
sw.PushInt32(i.TileY)
sw.PushInt32(i.WidthInTiles)
sw.PushInt32(i.HeightInTiles)
sw.PushInt32(i.Unknown)
}
}
// Step 5 - encode NPC's and its paths
ds1.encodeNPCs(sw)
return sw.GetBytes()
}
func (ds1 *DS1) encodeLayers(sw *d2datautils.StreamWriter) {
for lIdx := range ds1.layerStreamTypes {
layerStreamType := ds1.layerStreamTypes[lIdx]
for y := 0; y < int(ds1.Height); y++ {
for x := 0; x < int(ds1.Width); x++ {
dw := uint32(0)
switch layerStreamType {
case d2enum.LayerStreamWall1, d2enum.LayerStreamWall2, d2enum.LayerStreamWall3, d2enum.LayerStreamWall4:
wallIndex := int(layerStreamType) - int(d2enum.LayerStreamWall1)
ds1.Tiles[y][x].Walls[wallIndex].Encode(sw)
case d2enum.LayerStreamOrientation1, d2enum.LayerStreamOrientation2,
d2enum.LayerStreamOrientation3, d2enum.LayerStreamOrientation4:
wallIndex := int(layerStreamType) - int(d2enum.LayerStreamOrientation1)
dw |= uint32(ds1.Tiles[y][x].Walls[wallIndex].Type)
dw |= (uint32(ds1.Tiles[y][x].Walls[wallIndex].Zero) & wallZeroBitmask) << wallZeroOffset
sw.PushUint32(dw)
case d2enum.LayerStreamFloor1, d2enum.LayerStreamFloor2:
floorIndex := int(layerStreamType) - int(d2enum.LayerStreamFloor1)
ds1.Tiles[y][x].Floors[floorIndex].Encode(sw)
case d2enum.LayerStreamShadow:
ds1.Tiles[y][x].Shadows[0].Encode(sw)
case d2enum.LayerStreamSubstitute:
sw.PushUint32(ds1.Tiles[y][x].Substitutions[0].Unknown)
}
}
}
}
}
func (ds1 *DS1) encodeNPCs(sw *d2datautils.StreamWriter) {
// Step 5.1 - encode npc's
sw.PushUint32(uint32(len(ds1.npcIndexes)))
// Step 5.2 - enoce npcs' paths
for _, i := range ds1.npcIndexes {
sw.PushUint32(uint32(len(ds1.Objects[i].Paths)))
sw.PushUint32(uint32(ds1.Objects[i].X))
sw.PushUint32(uint32(ds1.Objects[i].Y))
for _, j := range ds1.Objects[i].Paths {
sw.PushUint32(uint32(j.Position.X()))
sw.PushUint32(uint32(j.Position.Y()))
if ds1.Version >= v15 {
sw.PushUint32(uint32(j.Action))
}
}
}
}

57
d2common/d2fileformats/d2ds1/floor_shadow_record.go
View File

@ -1,5 +1,35 @@
package d2ds1
import (
"github.com/OpenDiablo2/OpenDiablo2/d2common/d2datautils"
)
const (
prop1Bitmask = 0x000000FF
prop1Offset = 0
prop1Length = 8
sequenceBitmask = 0x00003F00
sequenceOffset = 8
sequenceLength = 6
unknown1Bitmask = 0x000FC000
unknown1Offset = 14
unknown1Length = 6
styleBitmask = 0x03F00000
styleOffset = 20
styleLength = 6
unknown2Bitmask = 0x7C000000
unknown2Offset = 26
unknown2Length = 5
hiddenBitmask = 0x80000000
hiddenOffset = 31
hiddenLength = 1
)
// FloorShadowRecord represents a floor or shadow record in a DS1 file.
type FloorShadowRecord struct {
Prop1 byte
@ -7,8 +37,33 @@ type FloorShadowRecord struct {
Unknown1 byte
Style byte
Unknown2 byte
Hidden bool
hidden byte
RandomIndex byte
Animated bool
YAdjust int
}
// Hidden returns if floor/shadow is hidden
func (f *FloorShadowRecord) Hidden() bool {
return f.hidden > 0
}
// Decode decodes floor-shadow record
func (f *FloorShadowRecord) Decode(dw uint32) {
f.Prop1 = byte((dw & prop1Bitmask) >> prop1Offset)
f.Sequence = byte((dw & sequenceBitmask) >> sequenceOffset)
f.Unknown1 = byte((dw & unknown1Bitmask) >> unknown1Offset)
f.Style = byte((dw & styleBitmask) >> styleOffset)
f.Unknown2 = byte((dw & unknown2Bitmask) >> unknown2Offset)
f.hidden = byte((dw & hiddenBitmask) >> hiddenOffset)
}
// Encode adds Floor's bits to stream writter given
func (f *FloorShadowRecord) Encode(sw *d2datautils.StreamWriter) {
sw.PushBits32(uint32(f.Prop1), prop1Length)
sw.PushBits32(uint32(f.Sequence), sequenceLength)
sw.PushBits32(uint32(f.Unknown1), unknown1Length)
sw.PushBits32(uint32(f.Style), styleLength)
sw.PushBits32(uint32(f.Unknown2), unknown2Length)
sw.PushBits32(uint32(f.hidden), hiddenLength)
}

32
d2common/d2fileformats/d2ds1/wall_record.go
View File

@ -1,6 +1,9 @@
package d2ds1
import "github.com/OpenDiablo2/OpenDiablo2/d2common/d2enum"
import (
"github.com/OpenDiablo2/OpenDiablo2/d2common/d2datautils"
"github.com/OpenDiablo2/OpenDiablo2/d2common/d2enum"
)
// WallRecord represents a wall record.
type WallRecord struct {
@ -11,7 +14,32 @@ type WallRecord struct {
Unknown1 byte
Style byte
Unknown2 byte
Hidden bool
hidden byte
RandomIndex byte
YAdjust int
}
// Hidden returns if wall is hidden
func (w *WallRecord) Hidden() bool {
return w.hidden > 0
}
// Decode decodes wall record
func (w *WallRecord) Decode(dw uint32) {
w.Prop1 = byte((dw & prop1Bitmask) >> prop1Offset)
w.Sequence = byte((dw & sequenceBitmask) >> sequenceOffset)
w.Unknown1 = byte((dw & unknown1Bitmask) >> unknown1Offset)
w.Style = byte((dw & styleBitmask) >> styleOffset)
w.Unknown2 = byte((dw & unknown2Bitmask) >> unknown2Offset)
w.hidden = byte((dw & hiddenBitmask) >> hiddenOffset)
}
// Encode adds wall's record's bytes into stream writer given
func (w *WallRecord) Encode(sw *d2datautils.StreamWriter) {
sw.PushBits32(uint32(w.Prop1), prop1Length)
sw.PushBits32(uint32(w.Sequence), sequenceLength)
sw.PushBits32(uint32(w.Unknown1), unknown1Length)
sw.PushBits32(uint32(w.Style), styleLength)
sw.PushBits32(uint32(w.Unknown2), unknown2Length)
sw.PushBits32(uint32(w.hidden), hiddenLength)
}

8
d2core/d2map/d2maprenderer/renderer.go
View File

@ -359,19 +359,19 @@ func (mr *MapRenderer) renderPass4(target d2interface.Surface, startX, startY, e
func (mr *MapRenderer) renderTilePass1(tile *d2mapengine.MapTile, target d2interface.Surface) {
for _, wall := range tile.Components.Walls {
if !wall.Hidden && wall.Prop1 != 0 && wall.Type.LowerWall() {
if !wall.Hidden() && wall.Prop1 != 0 && wall.Type.LowerWall() {
mr.renderWall(wall, mr.viewport, target)
}
}
for _, floor := range tile.Components.Floors {
if !floor.Hidden && floor.Prop1 != 0 {
if !floor.Hidden() && floor.Prop1 != 0 {
mr.renderFloor(floor, target)
}
}
for _, shadow := range tile.Components.Shadows {
if !shadow.Hidden && shadow.Prop1 != 0 {
if !shadow.Hidden() && shadow.Prop1 != 0 {
mr.renderShadow(shadow, target)
}
}
@ -379,7 +379,7 @@ func (mr *MapRenderer) renderTilePass1(tile *d2mapengine.MapTile, target d2inter
func (mr *MapRenderer) renderTilePass2(tile *d2mapengine.MapTile, target d2interface.Surface) {
for _, wall := range tile.Components.Walls {
if !wall.Hidden && wall.Type.UpperWall() {
if !wall.Hidden() && wall.Type.UpperWall() {
mr.renderWall(wall, mr.viewport, target)
}
}

6
d2core/d2map/d2maprenderer/tile_cache.go
View File

@ -34,19 +34,19 @@ func (mr *MapRenderer) generateTileCache() {
tile := &tiles[idx]
for i := range tile.Components.Floors {
if !tile.Components.Floors[i].Hidden && tile.Components.Floors[i].Prop1 != 0 {
if !tile.Components.Floors[i].Hidden() && tile.Components.Floors[i].Prop1 != 0 {
mr.generateFloorCache(&tile.Components.Floors[i])
}
}
for i := range tile.Components.Shadows {
if !tile.Components.Shadows[i].Hidden && tile.Components.Shadows[i].Prop1 != 0 {
if !tile.Components.Shadows[i].Hidden() && tile.Components.Shadows[i].Prop1 != 0 {
mr.generateShadowCache(&tile.Components.Shadows[i])
}
}
for i := range tile.Components.Walls {
if !tile.Components.Walls[i].Hidden && tile.Components.Walls[i].Prop1 != 0 {
if !tile.Components.Walls[i].Hidden() && tile.Components.Walls[i].Prop1 != 0 {
mr.generateWallCache(&tile.Components.Walls[i])
}
}