public void SetTextureRegion(RectF rect, bool reset_size)
{
if (reset_size)
{
Width = rect.Width;
Height = rect.Height;
}
m_quad = new Quad(m_texture, rect, RectF.FromBox(0, 0, Width, Height));
}
public Quad(Texture2D texture, RectF srcRect = default, RectF destRect = default)
{
this.TopLeft = default;
this.TopRight = default;
this.BottomRight = default;
this.BottomLeft = default;
if (texture == null)
{
return;
}
float ax, ay, bx, by;
float dest_x1, dest_y1, dest_x2, dest_y2;
if (srcRect.IsEmpty)
{
srcRect = RectF.FromBox(0, 0, texture.Width, texture.Height);
ax = 0;
ay = 0;
bx = 1;
by = 1;
}
else
{
float inv_tex_w = 1.0f / texture.Width;
float inv_tex_h = 1.0f / texture.Height;
ax = srcRect.X1 * inv_tex_w;
ay = srcRect.Y1 * inv_tex_h;
bx = srcRect.X2 * inv_tex_w;
by = srcRect.Y2 * inv_tex_h;
}
if (destRect.IsEmpty)
{
dest_x1 = 0;
dest_y1 = 0;
dest_x2 = srcRect.Width;
dest_y2 = srcRect.Height;
}
else
{
dest_x1 = destRect.X1;
dest_y1 = destRect.Y1;
dest_x2 = destRect.X2;
dest_y2 = destRect.Y2;
}
this.TopLeft.X = dest_x1;
this.TopLeft.Y = dest_y1;
this.TopLeft.Tx = ax;
this.TopLeft.Ty = ay;
this.TopLeft.Col = 0xFFFFFFFF;
this.TopRight.X = dest_x2;
this.TopRight.Y = dest_y1;
this.TopRight.Tx = bx;
this.TopRight.Ty = ay;
this.TopRight.Col = 0xFFFFFFFF;
this.BottomRight.X = dest_x2;
this.BottomRight.Y = dest_y2;
this.BottomRight.Tx = bx;
this.BottomRight.Ty = by;
this.BottomRight.Col = 0xFFFFFFFF;
this.BottomLeft.X = dest_x1;
this.BottomLeft.Y = dest_y2;
this.BottomLeft.Tx = ax;
this.BottomLeft.Ty = by;
this.BottomLeft.Col = 0xFFFFFFFF;
}
public Sprite(Texture2D texture) : this(texture, RectF.FromBox(0f, 0f, texture.Width, texture.Height))
{
}