Beispiel #1
0
func loadGraphic(filename string) *sdl.Texture {
	var err error

	image, err = img.Load(filename)
	if err != nil {
		fmt.Print("Failed to load PNG: ")
		fmt.Println(err)
		panic(err)
	}
	defer image.Free()
	var graphic *sdl.Texture
	graphic, err = renderer.CreateTextureFromSurface(image)
	if err != nil {
		fmt.Print("Failed to create texture: ")
		fmt.Println(err)
		panic(err)
	}
	return graphic
}
Beispiel #2
0
// LoadGraphic loads a graphic from disk or panics trying. The image can be in
// BMP, GIF, JPEG, LBM, PCX, PNG, PNM, TGA, TIFF, WEBP, XCF, XPM, or XV format.
// The user must supply the filename of the graphic file to load, in the
// parameter filename.
//
// If the function succeeds then a variable of type Graphic will be returned
// back to the calling function. It is the programmers responsibility to
// store this in a variable of type Graphic.
//
// If the function fails it will panic and crash the program.
// The reasons for a panic are:
//
// 1. The toolbox has not been initalised
//
// 2. The filename does not exist, or is otherwise inaccessable. The specific
// reason will be contained in the panic message itself. This message will
// be prefixed with "Failed to load file: ".
//
// 3. The file could not be converted into a Graphic type. Again the specific
// reason will be contained in the panic message itself. This message will be
// prefixed with "Failed to create Graphic: "
func LoadGraphic(filename string) Graphic {
	if !initialised {
		// this stops execution here, so ne need for an else after the if
		panic(notInitialisedMessage)
	}

	var err error
	var image *sdl.Surface
	image, err = img.Load(filename)
	if err != nil {
		fmt.Print("Failed to load file: ")
		fmt.Println(err)
		panic(err)
	}
	defer image.Free()
	var graphic *sdl.Texture
	graphic, err = renderer.CreateTextureFromSurface(image)
	if err != nil {
		fmt.Print("Failed to create Graphic: ")
		fmt.Println(err)
		panic(err)
	}
	return Graphic(graphic)
}