SetSpriteOrigin /Drawing

void SetSpriteOrigin(string spriteName, vector2 normalizedOrigin)

Sets the normalized origin point for the sprite named spriteName. The default origin point is vector2(0,0) which represents its upper left corner. vector2(0.5f, 0.5f) represents the center of the sprite.

// origin in the middle of the button sprite
SetSpriteOrigin("buttons/pauseButton.png", vector2(0.5f, 0.5f));

// origin in the lower right corner of the the button sprite
SetSpriteOrigin("buttons/pauseButton.png", vector2(1.0f, 1.0f));