private void SetSpritePrimitive(
out SpritePrim spritePrim,
SpriteB spriteB
)
{
spritePrim.V0.Color = _color;
spritePrim.V1.Color = _color;
spritePrim.V2.Color = _color;
spritePrim.V3.Color = _color;
spritePrim.V0.UV = spriteB._uv[0];
spritePrim.V1.UV = spriteB._uv[1];
spritePrim.V2.UV = spriteB._uv[2];
spritePrim.V3.UV = spriteB._uv[3];
if (spriteB.Rotation == 0.0f)
{
spritePrim.V0.Position.X = (short)(spriteB.Position.X - spriteB.Width * spriteB.Center.X); //0.0f; // x0
spritePrim.V0.Position.Y = (short)(spriteB.Position.Y - spriteB.Height * spriteB.Center.Y); //0.0f; // y0
spritePrim.V1.Position.X = (short)(spriteB.Position.X - spriteB.Width * spriteB.Center.X); //0.0f; // x1
spritePrim.V1.Position.Y = (short)(spriteB.Position.Y + spriteB.Height * (1.0f - spriteB.Center.Y)); //1.0f; // y1
spritePrim.V2.Position.X = (short)(spriteB.Position.X + spriteB.Width * (1.0f - spriteB.Center.X)); //1.0f; // x2
spritePrim.V2.Position.Y = (short)(spriteB.Position.Y - spriteB.Height * spriteB.Center.Y); //0.0f; // y2
spritePrim.V3.Position.X = (short)(spriteB.Position.X + spriteB.Width * (1.0f - spriteB.Center.X)); //1.0f; // x3
spritePrim.V3.Position.Y = (short)(spriteB.Position.Y + spriteB.Height * (1.0f - spriteB.Center.Y)); //1.0f; // y3
}
else
{
float x, y, rc, rs;
rc = FMath.Cos(spriteB.Rotation);
rs = FMath.Sin(spriteB.Rotation);
x = -spriteB.Width * spriteB.Center.X;
y = -spriteB.Height * spriteB.Center.Y;
spritePrim.V0.Position.X = (short)(spriteB.Position.X + (float)(x * rc - y * rs)); // x0
spritePrim.V0.Position.Y = (short)(spriteB.Position.Y + (float)(x * rs + y * rc)); // y0
x = -spriteB.Width * spriteB.Center.X;
y = spriteB.Height * (1.0f - spriteB.Center.Y);
spritePrim.V1.Position.X = (short)(spriteB.Position.X + (float)(x * rc - y * rs)); // x1
spritePrim.V1.Position.Y = (short)(spriteB.Position.Y + (float)(x * rs + y * rc)); // y1
x = spriteB.Width * (1.0f - spriteB.Center.X);
y = -spriteB.Height * spriteB.Center.Y;
spritePrim.V2.Position.X = (short)(spriteB.Position.X + (float)(x * rc - y * rs)); // x2
spritePrim.V2.Position.Y = (short)(spriteB.Position.Y + (float)(x * rs + y * rc)); // y2
x = spriteB.Width * (1.0f - spriteB.Center.X);
y = spriteB.Height * (1.0f - spriteB.Center.Y);
spritePrim.V3.Position.X = (short)(spriteB.Position.X + (float)(x * rc - y * rs)); // x3
spritePrim.V3.Position.Y = (short)(spriteB.Position.Y + (float)(x * rs + y * rc)); // y3
}
}
public void Add(SpriteB spriteB)
{
if (cnt >= m_maxNumOfSprite)
{
return;
}
this.spriteList.Add(spriteB);
++cnt;
}