mirror of
https://github.com/OpenDiablo2/OpenDiablo2
synced 2025-02-10 10:36:42 -05:00
8b1b6b9adc
* removed d2common/d2scene, was not the right way to go. * added components for animation, scale, main viewport, viewport filter * added interface for scenes, which are extensions of akara.System * BootStrap is now AppBootstrap, common to game clients and headless server * added generic BasicScene struct for common scene functionality * added game object factory as a system, with single sprite factory * added update counter system, shows how many times the world updates per second * integration test is now the game client test
105 lines
2.9 KiB
Go
105 lines
2.9 KiB
Go
package d2components
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import (
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"github.com/OpenDiablo2/OpenDiablo2/d2common/d2math/d2vector"
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"github.com/gravestench/akara"
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)
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// static check that CameraComponent implements Component
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var _ akara.Component = &CameraComponent{}
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// static check that CameraMap implements ComponentMap
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var _ akara.ComponentMap = &CameraMap{}
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// CameraComponent represents a camera that can be rendered to
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type CameraComponent struct {
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*d2vector.Vector
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Width int
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Height int
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Zoom float64
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}
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// ID returns a unique identifier for the component type
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func (*CameraComponent) ID() akara.ComponentID {
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return CameraCID
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}
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// NewMap returns a new component map for the component type
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func (*CameraComponent) NewMap() akara.ComponentMap {
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return NewCameraMap()
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}
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// Camera is a convenient reference to be used as a component identifier
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var Camera = (*CameraComponent)(nil) // nolint:gochecknoglobals // global by design
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// NewCameraMap creates a new map of entity ID's to Camera
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func NewCameraMap() *CameraMap {
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cm := &CameraMap{
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components: make(map[akara.EID]*CameraComponent),
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}
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return cm
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}
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// CameraMap is a map of entity ID's to Camera
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type CameraMap struct {
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world *akara.World
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components map[akara.EID]*CameraComponent
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}
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// Init initializes the component map with the given world
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func (cm *CameraMap) 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 (*CameraMap) ID() akara.ComponentID {
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return CameraCID
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}
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// NewMap returns a new component map for the component type
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func (*CameraMap) NewMap() akara.ComponentMap {
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return NewCameraMap()
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}
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// Add a new CameraComponent 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 *CameraMap) 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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position := d2vector.NewVector(0, 0)
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cm.components[id] = &CameraComponent{Vector: position}
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cm.world.UpdateEntity(id)
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return cm.components[id]
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}
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// AddCamera adds a new CameraComponent 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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// *CameraComponent instead of an akara.Component
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func (cm *CameraMap) AddCamera(id akara.EID) *CameraComponent {
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return cm.Add(id).(*CameraComponent)
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}
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// Get returns the component associated with the given entity id
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func (cm *CameraMap) 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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// GetCamera returns the CameraComponent associated with the given entity id
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func (cm *CameraMap) GetCamera(id akara.EID) (*CameraComponent, 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 *CameraMap) 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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