mirror of
https://github.com/OpenDiablo2/OpenDiablo2
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101 lines
2.9 KiB
Go
101 lines
2.9 KiB
Go
package d2components
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import (
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"github.com/OpenDiablo2/OpenDiablo2/d2common/d2interface"
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"github.com/gravestench/akara"
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)
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// static check that SurfaceComponent implements Component
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var _ akara.Component = &SurfaceComponent{}
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// static check that SurfaceMap implements ComponentMap
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var _ akara.ComponentMap = &SurfaceMap{}
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// SurfaceComponent is a component that contains an embedded surface interface
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type SurfaceComponent struct {
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d2interface.Surface
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}
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// ID returns a unique identifier for the component type
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func (*SurfaceComponent) ID() akara.ComponentID {
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return SurfaceCID
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}
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// NewMap returns a new component map for the component type
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func (*SurfaceComponent) NewMap() akara.ComponentMap {
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return NewSurfaceMap()
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}
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// Surface is a convenient reference to be used as a component identifier
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var Surface = (*SurfaceComponent)(nil) // nolint:gochecknoglobals // global by design
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// NewSurfaceMap creates a new map of entity ID's to Surface
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func NewSurfaceMap() *SurfaceMap {
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cm := &SurfaceMap{
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components: make(map[akara.EID]*SurfaceComponent),
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}
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return cm
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}
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// SurfaceMap is a map of entity ID's to Surface
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type SurfaceMap struct {
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world *akara.World
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components map[akara.EID]*SurfaceComponent
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}
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// Init initializes the component map with the given world
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func (cm *SurfaceMap) 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 (*SurfaceMap) ID() akara.ComponentID {
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return SurfaceCID
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}
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// NewMap returns a new component map for the component type
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func (*SurfaceMap) NewMap() akara.ComponentMap {
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return NewSurfaceMap()
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}
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// Add a new SurfaceComponent 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 *SurfaceMap) 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] = &SurfaceComponent{}
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cm.world.UpdateEntity(id)
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return cm.components[id]
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}
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// AddSurface adds a new SurfaceComponent 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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// *SurfaceComponent instead of an akara.Component
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func (cm *SurfaceMap) AddSurface(id akara.EID) *SurfaceComponent {
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return cm.Add(id).(*SurfaceComponent)
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}
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// Get returns the component associated with the given entity id
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func (cm *SurfaceMap) 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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// GetSurface returns the SurfaceComponent associated with the given entity id
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func (cm *SurfaceMap) GetSurface(id akara.EID) (*SurfaceComponent, 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 *SurfaceMap) 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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