public static SpriteType DefineSpriteAcross(Surface surface,int sprite_width_px,int sprite_height_px,int num_columns)
{
SpriteType s = new SpriteType();
float texcoord_width = (float)sprite_width_px * 1.0f / (float)surface.texture.TextureWidthPx;
float texcoord_height = (float)sprite_height_px * 1.0f / (float)surface.texture.TextureHeightPx;
s.X = idx => (idx % num_columns) * texcoord_width;
s.Y = idx => (idx / num_columns) * texcoord_height;
s.SpriteWidth = texcoord_width;
s.SpriteHeight = texcoord_height;
if(surface != null){
surface.texture.Sprite.Add(s);
}
return s;
}
public static SpriteType DefineSpriteDown(Surface surface,int sprite_width_px,int sprite_height_px,int num_rows,int h_offset_px,int v_offset_px)
{
SpriteType s = new SpriteType();
float texcoord_width = (float)sprite_width_px * 1.0f / (float)surface.texture.TextureWidthPx;
float texcoord_height = (float)sprite_height_px * 1.0f / (float)surface.texture.TextureHeightPx;
s.X = idx => ((idx / num_rows) * sprite_width_px + h_offset_px) * 1.0f / (float)surface.texture.TextureWidthPx;
s.Y = idx => ((idx % num_rows) * sprite_height_px + v_offset_px) * 1.0f / (float)surface.texture.TextureHeightPx;
s.SpriteWidth = texcoord_width;
s.SpriteHeight = texcoord_height;
if(surface != null){
surface.texture.Sprite.Add(s);
}
return s;
}
public static SpriteType DefineSingleRowSprite(Surface surface,int sprite_width_px,int padding_between_sprites_px)
{
SpriteType s = new SpriteType();
float px_width = 1.0f / (float)surface.texture.TextureWidthPx;
float texcoord_width = (float)sprite_width_px * px_width;
float texcoord_start = texcoord_width + (float)padding_between_sprites_px * px_width;
s.X = idx => idx * texcoord_start;
s.Y = idx => 0;
s.SpriteWidth = texcoord_width;
s.SpriteHeight = 1.0f;
if(surface != null){
surface.texture.Sprite.Add(s);
}
return s;
}