mirror of
https://github.com/OpenDiablo2/OpenDiablo2
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50d40fb5d3
* adding logger implementation to d2common
* Adding file loader implementation
The file loader works in terms of `Sources` and `Assets`. A `Source` is
something like a filesystem that has a cache. An `Asset` is something
that implements `io.ReadSeeker` and has a few methods of its own.
There are currently `Source` implementations for MPQ archives and for the
host filesystem, meaning that one can specify a directory on the host fs to
load files from.
`Sources` are added to a loader with `loader.AddSource(path)`, where `path`
resolves somewhere on disk. In the case that the path points to an MPQ,
then an MPQ `Source` is created and added to the loader. If `path` resolves
to a directory, then a filesystem source is added.
Files are loaded with `loader.Load("data/global/excel/monstats.txt")`, and the
sources are searched in the order that they were added.
* adding tests for d2common/logger_test.go
* adding tests and testdata for d2loader
* logger lint fixes, fixed missing test case
* minor edits, lint fixes, changes some comments, embedded Logger into Loader
* moved d2loader into d2common (I dont think it belonged in d2core)
* removed my simple cache implementation in favor of our existing cache in d2common
45 lines
1.0 KiB
Go
45 lines
1.0 KiB
Go
package filesystem
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import (
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"os"
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"github.com/OpenDiablo2/OpenDiablo2/d2common/d2loader/asset"
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"github.com/OpenDiablo2/OpenDiablo2/d2common/d2loader/asset/types"
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)
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// static check that Asset implements Asset
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var _ asset.Asset = &Asset{}
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// Asset represents an asset that is in the host filesystem
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type Asset struct {
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assetType types.AssetType
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source *Source
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path string
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file *os.File
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}
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// Type returns the asset type
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func (fsa *Asset) Type() types.AssetType {
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return fsa.assetType
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}
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// Source returns the asset source that this asset was loaded from
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func (fsa *Asset) Source() asset.Source {
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return fsa.source
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}
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// Path returns the sub-path (within the asset source Root) for this asset
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func (fsa *Asset) Path() string {
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return fsa.path
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}
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// Read reads bytes into the given byte buffer
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func (fsa *Asset) Read(p []byte) (n int, err error) {
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return fsa.file.Read(p)
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}
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// Seek seeks within the file
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func (fsa *Asset) Seek(offset int64, whence int) (int64, error) {
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return fsa.file.Seek(offset, whence)
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}
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