painter

type BgRectangle ¶

type BgRectangle struct {
	X1, Y1, X2, Y2 int
}

func (operation *BgRectangle) Do(texture screen.Texture) bool

type Figure ¶

type Figure struct {
	X, Y int
	C    color.RGBA
}

func (operation *Figure) Do(texture screen.Texture) bool

type Loop ¶

type Loop struct {
	Receiver Receiver

	MsgQueue messageQueue
	// contains filtered or unexported fields
}

Loop implements an event loop to create a texture obtained by executing PainterOperations received from an internal queue.

func (l *Loop) Post(op PainterOperation)

func (l *Loop) Start(s screen.Screen)

func (l *Loop) StopAndWait()

type Move ¶

type Move struct {
	X, Y    int
	Figures []*Figure
}

func (operation *Move) Do(texture screen.Texture) bool

type OperationFunc ¶

type OperationFunc func(texture screen.Texture)

OperationFunc is used to convert a texture update function to a PainterOperation.

func (f OperationFunc) Do(texture screen.Texture) bool

type PainterOperation ¶

type PainterOperation interface {
	// Do performs the operation and returns true if the texture is ready for display.
	Do(texture screen.Texture) (ready bool)
}

type PainterOperationList ¶

type PainterOperationList []PainterOperation

PainterOperationList groups a list of operations into one.

func (operationList PainterOperationList) Do(texture screen.Texture) (ready bool)

type Receiver ¶

type Receiver interface {
	Update(t screen.Texture)
}

Receiver receives a texture prepared as a result of executing commands in an event context.