components

type Components struct {
	Engine *EngineComponents
	Game   interface{}
}

type EngineComponents struct {
	SpriteRender *ecs.SliceComponent
	Transform    *ecs.SliceComponent
	Text         *ecs.SliceComponent
	UITransform  *ecs.SliceComponent
}

type Sprite struct {
	// Horizontal position of the sprite in the sprite sheet
	X int
	// Vertical position of the sprite in the sprite sheet
	Y int
	// Width of the sprite
	Width int
	// Height of the sprite
	Height int
}

type SpriteRender struct {
	// Reference sprite sheet
	SpriteSheet *SpriteSheet
	// Index of the sprite on the sprite sheet
	SpriteNumber int
	// Draw options
	Options ebiten.DrawImageOptions
}

type SpriteSheet struct {
	// Texture image
	Texture Texture `toml:"texture_image"`
	// List of sprites
	Sprites []Sprite
}

type Text struct {
	ID       string
	Text     string
	FontFace font.Face
	Color    color.RGBA
}

type Texture struct {
	// Texture image
	Image *ebiten.Image
}

type Transform struct {
	// Scale1 vector defines image scaling. Contains scale value minus 1 so that zero value is identity.
	Scale1 math.Vector2 `toml:"scale_minus_1"`
	// Rotation angle is measured counterclockwise.
	Rotation float64
	// Translation defines the position of the image center relative to the origin.
	Translation math.Vector2
	// Origin defines the origin (0, 0) relative to the screen. Default is "BottomLeft".
	Origin string
	// Depth determines the drawing order on the screen. Images with higher depth are drawn above others.
	Depth float64
}

type UITransform struct {
	// Translation defines the position of the pivot relative to the origin.
	Translation math.VectorInt2
	// Origin defines the origin (0, 0) relative to the screen. Default is "BottomLeft".
	Origin string
	// Pivot defines the position of the element relative to its translation (default is Middle).
	Pivot string
}