feat: added the way to draw filled circles.

circle.go

@@ -0,0 +1,28 @@
+package gg
+
+import (
+	"github.com/hajimehoshi/ebiten/v2/vector"
+)
+
+type Circle struct {
+	Object
+	Transform
+	Visibility
+	Colority
+	Antialiasity
+	Layer
+}
+
+func (circle *Circle) Draw(c *Context) []EVertex {
+	rPos := circle.Position.Apply(c.Camera.RealMatrix())
+	vector.DrawFilledCircle(
+		c.Image,
+		float32(rPos.X), float32(rPos.Y),
+		float32(circle.Rotation),
+		circle.Color,
+		circle.Antialias,
+	)
+	return nil
+}
+
+

cmd/test/main.go

@@ -52,6 +52,16 @@ func main() {
 	e.Spawn(player)
 	e.Spawn(rect)
 	e.Spawn(tri)
+
+	circle := &gg.Circle{}
+	circle.Transform = gg.T()
+	circle.Rotation = 300
+	circle.Color = gg.Rgba(1, 1, 1, 1)
+	circle.Antialias = true
+	circle.Layer = HighestL
+	circle.Visible = true
+	e.Spawn(circle)
+
 	fmt.Println(rect.GetLayer(), player.GetLayer())
 
 	err = e.Run()

object.go

@@ -23,6 +23,10 @@ type Deleter interface {
 	Delete(*Context)
 }
 
+type Antialiasity struct {
+	Antialias bool
+}
+
 // Feat to embed for turning visibility on and off.
 type Visibility struct {
 	Visible bool