Noah Petherbridge
b17ca34de2
* Use `go-bindata` to embed built-in doodads and levels directly into
the Doodle binary. `make bindata` produces the bindata source file.
* Add `FromJSON()` method to Levels and Doodads to load objects from
JSON strings in memory (for bindata built-ins or WASM ajax requests)
* Update file loading functions to check the embedded bindata files.
* pkg/config.go#EditFile:
* Supports editing a level from bindata (TODO: remove this support)
* If the "assets/levels/%(simple-name.level)" exists in bindata,
edits that drawing.
* No such support for editing built-in doodads.
* WASM has no filesystem access to edit files except built-in
levels (yet)
* pkg/doodads#ListDoodads:
* Prepends built-in doodads from bindata to the returned list.
* WASM: no filesystem access so gets only the built-ins.
* pkg/doodads#LoadFile:
* Checks built-in bindata store first for doodad files.
* WASM: tries an HTTP request if not found in bindata but can go no
further if not found (no filesystem access)
* pkg/filesystem#FindFile:
* This function finds a level/doodad by checking all the places.
* If the level or doodad exists in bindata built-in, always returns
its system path like "assets/doodads/test.doodad"
* WASM: always returns the built-in candidate path even if not found
in bindata so that ajax GET can be attempted.
* pkg/level#ListSystemLevels:
* New function that lists the system level files, similar to the
equivalent doodads function.
* Prepends the bindata built-in level files.
* WASM: only returns the built-ins (no filesystem support)
* Desktop: also lists and returns the assets/levels/ directory.
* pkg/level#LoadFile:
* Like the doodads.LoadFile, tries from built-in bindata first, then
ajax request (WASM) before accessing the filesystem (desktop)
* Menu Scene: TODO, list the built-in levels in the Load Level menu.
This feature will soon go away when WASM gets its own storage for user
levels (localStorage instead of filesystem)
117 行
2.6 KiB
Go
117 行
2.6 KiB
Go
package level
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import (
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"errors"
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"fmt"
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"io/ioutil"
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"runtime"
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"strings"
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"git.kirsle.net/apps/doodle/pkg/bindata"
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"git.kirsle.net/apps/doodle/pkg/branding"
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"git.kirsle.net/apps/doodle/pkg/enum"
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"git.kirsle.net/apps/doodle/pkg/filesystem"
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"git.kirsle.net/apps/doodle/pkg/log"
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"git.kirsle.net/apps/doodle/pkg/userdir"
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"git.kirsle.net/apps/doodle/pkg/wasm"
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)
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// ListSystemLevels returns a list of built-in levels.
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func ListSystemLevels() ([]string, error) {
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var names = []string{}
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// Add the levels embedded inside the binary.
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if levels, err := bindata.AssetDir("assets/levels"); err == nil {
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names = append(names, levels...)
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}
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// WASM
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if runtime.GOOS == "js" {
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// Return just the embedded ones, no filesystem access.
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return names, nil
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}
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// Read filesystem for system levels.
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files, err := ioutil.ReadDir(filesystem.SystemLevelsPath)
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for _, file := range files {
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name := file.Name()
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if strings.HasSuffix(strings.ToLower(name), enum.DoodadExt) {
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names = append(names, name)
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}
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}
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return names, err
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}
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// LoadFile reads a level file from disk, checking a few locations.
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func LoadFile(filename string) (*Level, error) {
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if !strings.HasSuffix(filename, enum.LevelExt) {
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filename += enum.LevelExt
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}
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// Search the system and user paths for this level.
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filename, err := filesystem.FindFile(filename)
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if err != nil {
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return nil, err
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}
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// Do we have the file in bindata?
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if jsonData, err := bindata.Asset(filename); err == nil {
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log.Info("loaded from embedded bindata")
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return FromJSON(filename, jsonData)
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}
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// WASM: try the file over HTTP ajax request.
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if runtime.GOOS == "js" {
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jsonData, err := wasm.HTTPGet(filename)
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if err != nil {
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return nil, err
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}
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return FromJSON(filename, jsonData)
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}
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// Try the binary format.
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if level, err := LoadBinary(filename); err == nil {
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return level, nil
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} else {
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log.Warn(err.Error())
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}
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// Then the JSON format.
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if level, err := LoadJSON(filename); err == nil {
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return level, nil
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} else {
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log.Warn(err.Error())
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}
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return nil, errors.New("invalid file type")
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}
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// WriteFile saves a level to disk in the user's config directory.
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func (m *Level) WriteFile(filename string) error {
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if !strings.HasSuffix(filename, enum.LevelExt) {
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filename += enum.LevelExt
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}
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// Set the version information.
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m.Version = 1
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m.GameVersion = branding.Version
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// bin, err := m.ToBinary()
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bin, err := m.ToJSON()
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if err != nil {
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return err
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}
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// Save it to their profile directory.
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filename = userdir.LevelPath(filename)
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log.Info("Write Level: %s", filename)
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err = ioutil.WriteFile(filename, bin, 0644)
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if err != nil {
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return fmt.Errorf("level.WriteFile: %s", err)
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}
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return nil
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}
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