Programming 2D Games

124 5. Sprites and Animation

alpha value of a color by performing a bitwise AND. e alpha value determines how

transparent a color appears. A value of 0 is completely transparent and a value of 255 is

completely opaque. We will use these alpha values in later examples. To specify the color

orange, for example, just use graphicsNS::ORANGE in the code.

// Some common colors

// ARGB numbers range from 0 through 255

// A = Alpha channel (transparency where 255 is opaque)

// R = Red, G = Green, B = Blue

const COLOR_ARGB ORANGE = D3DCOLOR_ARGB(255,255,165, 0);

const COLOR_ARGB BROWN = D3DCOLOR_ARGB(255,139, 69, 19);

const COLOR_ARGB LTGRAY = D3DCOLOR_ARGB(255,192,192,192); ...