objects

package
v0.0.0-...-219ab8e Latest Latest
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This package is not in the latest version of its module.

 Go to latest Published: Jun 22, 2024 License: Apache-2.0 Imports: 18 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	// MaxPreviousStates is the maximum number of past states to keep
	MaxPreviousStates = 60
)

Variables

This section is empty.

Functions

func DestroyTree 

func DestroyTree(object GameObject) error

func DrawTree 

func DrawTree(object GameObject, screen *ebiten.Image)

func InitTree 

func InitTree(object GameObject) error

func UpdateTree 

func UpdateTree(object GameObject) error

Types

type BaseObject 

type BaseObject struct {
	// contains filtered or unexported fields
}

BaseObject is a base implementation of GameObject. All game objects should embed this struct to inherit its methods.

func NewBaseObject 

func NewBaseObject(id string, opts *NewBaseObjectOpts) *BaseObject

func (*BaseObject) AddChild 

func (o *BaseObject) AddChild(id string, child GameObject) error

func (*BaseObject) Destroy 

func (o *BaseObject) Destroy() error

func (*BaseObject) Draw 

func (o *BaseObject) Draw(screen *ebiten.Image)

func (*BaseObject) GetChild 

func (o *BaseObject) GetChild(id string) GameObject

func (*BaseObject) GetChildren 

func (o *BaseObject) GetChildren() []GameObject

func (*BaseObject) GetID 

func (o *BaseObject) GetID() string

func (*BaseObject) GetZIndex 

func (o *BaseObject) GetZIndex() int

func (*BaseObject) Init 

func (o *BaseObject) Init() error

func (*BaseObject) RemoveChild 

func (o *BaseObject) RemoveChild(id string) error

func (*BaseObject) RemoveFromParent 

func (o *BaseObject) RemoveFromParent() error

func (*BaseObject) SetParent 

func (o *BaseObject) SetParent(parent GameObject)

func (*BaseObject) Update 

func (o *BaseObject) Update() error

type GameObject 

type GameObject interface {
	Lifecycle

	GetID() string
	GetChildren() []GameObject
	GetChild(id string) GameObject
	AddChild(id string, child GameObject) error
	RemoveChild(id string) error

	SetParent(parent GameObject)
	RemoveFromParent() error

	GetZIndex() int
}

GameObject is the highest level interface for game related types. It provides methods for initializing, destroying, updating, and drawing game objects. It also provides methods for managing child game objects. All game objects should implement this interface. The BaseObject struct provides a base implementation of this interface.

func NewTextOverlayObject 

func NewTextOverlayObject(id string, text string) GameObject

type IndexedObjectList 

type IndexedObjectList struct {
	// contains filtered or unexported fields
}

TODO: unit tests for IndexedObjectList

func NewIndexedObjectList 

func NewIndexedObjectList() *IndexedObjectList

func (*IndexedObjectList) Add 

func (l *IndexedObjectList) Add(id string, object GameObject)

func (*IndexedObjectList) Get 

func (l *IndexedObjectList) Get(id string) GameObject

func (*IndexedObjectList) GetAll 

func (l *IndexedObjectList) GetAll() []GameObject

func (*IndexedObjectList) Remove 

func (l *IndexedObjectList) Remove(id string)

type LevelObject 

type LevelObject struct {
	*BaseObject
	// contains filtered or unexported fields
}

func NewLevelObject 

func NewLevelObject(id string, opts NewLevelObjectOptions) *LevelObject

func (*LevelObject) Draw 

func (o *LevelObject) Draw(screen *ebiten.Image)

type Lifecycle 

type Lifecycle interface {
	// Game flow methods
	Init() error
	Destroy() error
	Update() error
	Draw(screen *ebiten.Image)
}

type NPC 

type NPC struct {
	*BaseObject

	ID string

	// TODO: make this private with a getter and setter
	State *gametypes.NPCState
	// contains filtered or unexported fields
}

func NewNPC 

func NewNPC(id string, state *gametypes.NPCState) (*NPC, error)

func (*NPC) Draw 

func (o *NPC) Draw(screen *ebiten.Image)

func (*NPC) ExtrapolateState 

func (o *NPC) ExtrapolateState(from *gametypes.NPCState, to *gametypes.NPCState, factor float64)

func (*NPC) InterpolateState 

func (o *NPC) InterpolateState(from *gametypes.NPCState, to *gametypes.NPCState, factor float64)

func (*NPC) Update 

func (o *NPC) Update() error

type NewBaseObjectOpts 

type NewBaseObjectOpts struct {
	ZIndex int
}

type NewLevelObjectOptions 

type NewLevelObjectOptions struct {
	// X is the x-coordinate of the level object.
	X float32
	// Y is the y-coordinate of the level object.
	Y float32
	// W is the width of the level object.
	W float32
	// H is the height of the level object.
	H float32
	// Color is the color of the level object.
	Color color.Color
	// ZIndex is the z-index of the level object.
	ZIndex int
}

type NewTextEffectOptions 

type NewTextEffectOptions struct {
	// Text is the text to display.
	Text string
	// X is the x-coordinate of the text.
	X float64
	// Y is the y-coordinate of the text.
	Y float64
	// Color is the color of the text.
	Color color.Color
	// Scroll is a boolean value indicating whether the text should scroll.
	Scroll bool
	// TTL is the time to live in milliseconds.
	TTL int
	// ZIndex is the z-index of the text effect.
	ZIndex int
}

type Player 

type Player struct {
	*BaseObject

	ID string

	// TODO: make this private with a getter and setter
	State *gametypes.PlayerState
	// contains filtered or unexported fields
}

func NewPlayer 

func NewPlayer(id string, networkManager *network.NetworkManager, state *gametypes.PlayerState) (*Player, error)

func (*Player) Draw 

func (o *Player) Draw(screen *ebiten.Image)

func (*Player) ExtrapolateState 

func (o *Player) ExtrapolateState(from *gametypes.PlayerState, to *gametypes.PlayerState, factor float64)

func (*Player) InterpolateState 

func (o *Player) InterpolateState(from *gametypes.PlayerState, to *gametypes.PlayerState, factor float64)

func (*Player) ReconcileState 

func (o *Player) ReconcileState(state *gametypes.PlayerState) error

ReconcileState reconciles the player state with the server state by going back through the past client states and checking if it the client state for that timestamp matches the server state. If it doesn't match, the server state is applied and all of the past updates that are after the last processed timestamp are replayed.

func (*Player) Update 

func (o *Player) Update() error

type PreviousState 

type PreviousState struct {
	Timestamp int64
	State     *gametypes.PlayerState
}

func (PreviousState) NeedsReconciliation 

func (ps PreviousState) NeedsReconciliation(other *gametypes.PlayerState) bool

NeedsReconciliation returns true if the previous state needs to be reconciled with an authoritative state

type SortedZIndexObject 

type SortedZIndexObject struct {
	*BaseObject
	// contains filtered or unexported fields
}

SortedZIndexObject is a GameObject that maintains a sorted list of child objects by z-index.

func NewSortedZIndexObject 

func NewSortedZIndexObject(id string) *SortedZIndexObject

func (*SortedZIndexObject) AddChild 

func (o *SortedZIndexObject) AddChild(id string, child GameObject) error

func (*SortedZIndexObject) GetChildren 

func (o *SortedZIndexObject) GetChildren() []GameObject

func (*SortedZIndexObject) RemoveChild 

func (o *SortedZIndexObject) RemoveChild(id string) error

type TextEffect 

type TextEffect struct {
	*BaseObject

	ID string
	// contains filtered or unexported fields
}

func NewTextEffect 

func NewTextEffect(id string, opts NewTextEffectOptions) *TextEffect

func (*TextEffect) Draw 

func (o *TextEffect) Draw(screen *ebiten.Image)

func (*TextEffect) Update 

func (o *TextEffect) Update() error

type TextOverlayObject 

type TextOverlayObject struct {
	*BaseObject
	// contains filtered or unexported fields
}

func (*TextOverlayObject) Draw 

func (o *TextOverlayObject) Draw(screen *ebiten.Image)

Source Files

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