mirror of
https://github.com/OpenDiablo2/OpenDiablo2
synced 2024-09-06 19:44:15 -04:00
*`StreamReader.Read` methods now return errors The other edits in this commit are related to cleaning up lint errors caused by the changes to StreamReader
84 lines
2.0 KiB
Go
84 lines
2.0 KiB
Go
package d2data
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import (
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"strings"
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"github.com/OpenDiablo2/OpenDiablo2/d2common/d2datautils"
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)
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const (
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numCofNameBytes = 8
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numFlagBytes = 144
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)
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// AnimationDataRecord represents a single entry in the animation data dictionary file
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type AnimationDataRecord struct {
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// COFName is the name of the COF file used for this animation
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COFName string
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// FramesPerDirection specifies how many frames are in each direction
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FramesPerDirection int
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// AnimationSpeed represents a value of X where the rate is a ration of (x/255) at 25FPS
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AnimationSpeed int
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// Flags are used in keyframe triggers
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Flags []byte
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}
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// AnimationData represents all of the animation data records, mapped by the COF index
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type AnimationData map[string][]*AnimationDataRecord
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// LoadAnimationData loads the animation data table into the global AnimationData dictionary
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func LoadAnimationData(rawData []byte) (AnimationData, error) {
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animdata := make(AnimationData)
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streamReader := d2datautils.CreateStreamReader(rawData)
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for !streamReader.EOF() {
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var dataCount int
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b, err := streamReader.ReadInt32()
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if err != nil {
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return nil, err
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}
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dataCount = int(b)
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for i := 0; i < dataCount; i++ {
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cofNameBytes, err := streamReader.ReadBytes(numCofNameBytes)
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if err != nil {
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return nil, err
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}
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fpd, err := streamReader.ReadInt32()
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if err != nil {
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return nil, err
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}
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animSpeed, err := streamReader.ReadInt32()
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if err != nil {
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return nil, err
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}
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data := &AnimationDataRecord{
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COFName: strings.ReplaceAll(string(cofNameBytes), string(byte(0)), ""),
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FramesPerDirection: int(fpd),
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AnimationSpeed: int(animSpeed),
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}
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flagBytes, err := streamReader.ReadBytes(numFlagBytes)
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if err != nil {
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return nil, err
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}
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data.Flags = flagBytes
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cofIndex := strings.ToLower(data.COFName)
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if _, found := animdata[cofIndex]; !found {
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animdata[cofIndex] = make([]*AnimationDataRecord, 0)
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}
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animdata[cofIndex] = append(animdata[cofIndex], data)
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}
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}
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return animdata, nil
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}
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