1.1 KiB
package main import ( "fmt" "math/rand" )
type Shape interface { draw() }
type Circle struct{ x,y,r int color string }
func (c Circle)draw() { fmt.Println("Draw circle..here",c.x,c.y,c.color) }
type ShapeFactory struct{
shapeMap map[string]Shape
colorArray []string
}
func NewShapeFactory()ShapeFactory{ shapeFactoryVar:=ShapeFactory{} shapeFactoryVar.shapeMap=make(map[string]Shape) return shapeFactoryVar }
func(s ShapeFactory)getShape(color string) Shape{ if circleVar,ok:=s.shapeMap[color];ok { fmt.Println("Cirle object of "+color +" already created..") return circleVar } circleVar:=Circle{} circleVar.x=rand.Intn(100) circleVar.y=rand.Intn(100) circleVar.color=color s.shapeMap[circleVar.color] =circleVar return circleVar }
func main(){ var shapevar Shape shapeFactoryVar:=NewShapeFactory() colorArray:=[]string{"red","yellow","blue","black","orange","green","purple","white"} for i:=1;i<=10;i++ { color:=colorArray[rand.Intn(len(colorArray)-1)] shapevar =shapeFactoryVar.getShape(color) shapevar.draw() }
}