mirror of
https://github.com/OpenDiablo2/OpenDiablo2
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108 lines
3.2 KiB
Go
108 lines
3.2 KiB
Go
package d2components
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import (
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"github.com/gravestench/akara"
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"github.com/OpenDiablo2/OpenDiablo2/d2common/d2interface"
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)
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// static check that FileSourceComponent implements Component
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var _ akara.Component = &FileSourceComponent{}
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// static check that FileSourceMap implements ComponentMap
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var _ akara.ComponentMap = &FileSourceMap{}
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// AbstractSource is the abstract representation of what a file source is
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type AbstractSource interface {
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Path() string
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Open(path *FilePathComponent) (d2interface.DataStream, error)
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}
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// FileSourceComponent is a component that contains a FileSourceComponent instance
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type FileSourceComponent struct {
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AbstractSource
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}
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// ID returns a unique identifier for the component type
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func (*FileSourceComponent) ID() akara.ComponentID {
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return FileSourceCID
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}
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// NewMap returns a new component map for the component type
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func (*FileSourceComponent) NewMap() akara.ComponentMap {
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return NewFileSourceMap()
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}
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// FileSource is a convenient reference to be used as a component identifier
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var FileSource = (*FileSourceComponent)(nil) // nolint:gochecknoglobals // global by design
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// NewFileSourceMap creates a new map of entity ID's to FileSourceComponent components
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func NewFileSourceMap() *FileSourceMap {
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cm := &FileSourceMap{
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components: make(map[akara.EID]*FileSourceComponent),
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}
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return cm
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}
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// FileSourceMap is a map of entity ID's to FileSourceComponent type components
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type FileSourceMap struct {
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world *akara.World
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components map[akara.EID]*FileSourceComponent
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}
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// Init initializes the component map with the given world
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func (cm *FileSourceMap) Init(world *akara.World) {
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cm.world = world
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}
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// ID returns a unique identifier for the component type
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func (*FileSourceMap) ID() akara.ComponentID {
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return FileSourceCID
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}
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// NewMap returns a new component map for the component type
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func (*FileSourceMap) NewMap() akara.ComponentMap {
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return NewFileSourceMap()
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}
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// Add a new FileSourceComponent for the given entity id, return that component.
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// If the entity already has a component, just return that one.
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func (cm *FileSourceMap) Add(id akara.EID) akara.Component {
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if com, has := cm.components[id]; has {
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return com
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}
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cm.components[id] = &FileSourceComponent{}
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cm.world.UpdateEntity(id)
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return cm.components[id]
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}
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// AddFileSource adds a new FileSourceComponent for the given entity id and returns it.
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// If the entity already has a file type component, just return that one.
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// this is a convenience method for the generic Add method, as it returns a
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// *FileSourceComponent instead of an akara.Component
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func (cm *FileSourceMap) AddFileSource(id akara.EID) *FileSourceComponent {
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return cm.Add(id).(*FileSourceComponent)
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}
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// Get returns the component associated with the given entity id
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func (cm *FileSourceMap) Get(id akara.EID) (akara.Component, bool) {
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entry, found := cm.components[id]
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return entry, found
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}
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// GetFileSource returns the FileSourceComponent type component associated with the given entity id
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func (cm *FileSourceMap) GetFileSource(id akara.EID) (*FileSourceComponent, bool) {
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entry, found := cm.components[id]
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return entry, found
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}
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// Remove a component for the given entity id, return the component.
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func (cm *FileSourceMap) Remove(id akara.EID) {
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delete(cm.components, id)
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cm.world.UpdateEntity(id)
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}
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