private void ComposePauseShowLevel(CompositionTargetBase target)
{
//draw a big bordered box
target.FillRectangle(
Brushes.Black,
this._rectAlert);
target.DrawRectangle(
Pens.Lime,
this._rectAlert);
//draw a "Level" abbreviation
target.DrawString(
"Lv",
Fonts.Fixed5x7,
Brushes.Lime,
this._rectAlert.Left + 2,
this._rectAlert.Top + 2);
//draw the number of the current level
string text = this.Context.CurrentLevel.ToString();
Size sz = target.MeasureString(text, Fonts.Fixed5x7);
target.DrawString(
text,
Fonts.Fixed5x7,
Brushes.Yellow,
this._rectAlert.Right - 2 - sz.Width,
this._rectAlert.Top + 2);
}
private void ComposePauseSaucerHit(CompositionTargetBase target)
{
//draw a big bordered box
target.FillRectangle(
Brushes.Black,
this._rectAlert);
target.DrawRectangle(
Pens.Lime,
this._rectAlert);
//draw the ship symbol
target.DrawString(
"LM", //saucer
AlienFont.Instance,
Brushes.Lime,
this._rectAlert.Left,
this._rectAlert.Top + 2);
//draw the number of ships left
string text = this.Saucer.PromisedScore.ToString();
Size sz = target.MeasureString(text, Fonts.Fixed5x7);
target.DrawString(
text,
Fonts.Fixed5x7,
Brushes.Yellow,
this._rectAlert.Right - 2 - sz.Width,
this._rectAlert.Top + 2);
}
public void OnRender(CompositionTargetBase target)
{
//render the ball as a square at the current position
this._rect.X = (int)(this._xpos + 0.5f);
this._rect.Y = (int)(this._ypos + 0.5f);
target.FillRectangle(
this._brush,
this._rect);
target.DrawRectangle(
this._pen,
this._rect);
//move the ball according to its speed
this._xpos += this._xspeed;
this._ypos += this._yspeed;
//checks the viewport edges and makes the ball bouncing
if (this._rightBound == 0)
{
Size vp = target.ViewportSize;
this._rightBound = vp.Width - EdgeLength;
this._bottomBound = vp.Height - EdgeLength;
}
if (this._xpos < 0)
{
this._xspeed = -this._xspeed;
this._xpos += this._xspeed;
}
else if (this._xpos >= this._rightBound)
{
this._xspeed = -this._xspeed;
this._xpos += this._xspeed;
}
if (this._ypos < 0)
{
this._yspeed = -this._yspeed;
this._ypos += this._yspeed;
}
else if (this._ypos >= this._bottomBound)
{
this._yspeed = -this._yspeed;
this._ypos += this._yspeed;
}
}
private void ComposePauseGameOver(CompositionTargetBase target)
{
//draw a big bordered box
target.FillRectangle(
Brushes.Black,
this._rectAlert);
target.DrawRectangle(
Pens.Lime,
this._rectAlert);
//draw "game" then "over"
var text = (this._pausedClock > PausedTimeShort)
? "GAME"
: "OVER";
target.DrawString(
text,
Fonts.Fixed5x7,
Brushes.Red,
this._rectAlert.Left + 2,
this._rectAlert.Top + 2);
}
private static void TestColors()
{
//draw a couple of rectangle frames as background,
//so that the transparency will be easy to test
var rect = new Rectangle(2, 2, 27, 11);
_composition.DrawRectangle(
Pens.Lime,
rect);
rect.Inflate(-4, -4);
_composition.DrawRectangle(
Pens.Lime,
rect);
//draw many colored blocks as much the colors are
rect = new Rectangle(0, 0, 7, 3);
//opaque colors
_composition.FillRectangle(new SolidBrush(Colors.Black), rect);
rect.Y += 4;
_composition.FillRectangle(new SolidBrush(Colors.Blue), rect);
rect.Y += 4;
_composition.FillRectangle(new SolidBrush(Colors.Lime), rect);
rect.Y += 4;
_composition.FillRectangle(new SolidBrush(Colors.Aqua), rect);
rect.X += 8;
rect.Y = 0;
_composition.FillRectangle(new SolidBrush(Colors.Red), rect);
rect.Y += 4;
_composition.FillRectangle(new SolidBrush(Colors.Fuchsia), rect);
rect.Y += 4;
_composition.FillRectangle(new SolidBrush(Colors.Yellow), rect);
rect.Y += 4;
_composition.FillRectangle(new SolidBrush(Colors.White), rect);
rect.X += 8;
rect.Y = 0;
//transparent colors
_composition.FillRectangle(new SolidBrush(Colors.Black & ~Colors.Opaque), rect);
rect.Y += 4;
_composition.FillRectangle(new SolidBrush(Colors.Blue & ~Colors.Opaque), rect);
rect.Y += 4;
_composition.FillRectangle(new SolidBrush(Colors.Lime & ~Colors.Opaque), rect);
rect.Y += 4;
_composition.FillRectangle(new SolidBrush(Colors.Aqua & ~Colors.Opaque), rect);
rect.X += 8;
rect.Y = 0;
_composition.FillRectangle(new SolidBrush(Colors.Red & ~Colors.Opaque), rect);
rect.Y += 4;
_composition.FillRectangle(new SolidBrush(Colors.Fuchsia & ~Colors.Opaque), rect);
rect.Y += 4;
_composition.FillRectangle(new SolidBrush(Colors.Yellow & ~Colors.Opaque), rect);
rect.Y += 4;
_composition.FillRectangle(new SolidBrush(Colors.White & ~Colors.Opaque), rect);
}