global

func AdjustImage ¶

func AdjustImage(image *sdl.Surface, w, h int32) (*sdl.Surface, error)

AdjustImage will resize an image to fit into w x h surface image

func AdjustMega ¶

func AdjustMega(mega int32) string

AdjustMega get a number in megabyte, reduce it in GB, TB and return the string result

func FlashImage ¶

func FlashImage(surface *sdl.Surface, level uint32)

FlashImage will flash/brighten a surface depending on the 'level' - level=8 -> completely white - level=0 -> the normal image

func GetSurfacePixel ¶

func GetSurfacePixel(surface *sdl.Surface, x, y int32) (red, green, blue, alpha uint8)

helper function, to know which pixel is in (x.y)

It is mainly used to know if we are on a transparent pixel

func GlowImage ¶

func GlowImage(spriteassetpath string, color uint32) *sdl.Surface

GlowImage takes a asset path, load it, and add a glow effect around it

func LoadImageAsset ¶

func LoadImageAsset(filename string) (*sdl.Surface, error)

LoadImageAsset load an SDL (PNG) image directly from assets

func ParseMega ¶

func ParseMega(str string) int32

ParseMega parse a string like 100M and translate it into a int32 in Megabytes