public override void Draw(GameTime gameTime, Frame frame)
{
using (var rtb = BatchGroup.ForRenderTarget(frame, -1, Rt)) {
var ir = new ImperativeRenderer(rtb, Materials);
ir.Clear(color: Color.Transparent);
ir.SetViewport(new Rectangle(128, 128, 256, 256), true);
ir.FillRectangle(new Rectangle(0, 0, 512, 512), Color.Black, customMaterial: Vpos);
}
{
var ir = new ImperativeRenderer(frame, Materials)
{
AutoIncrementLayer = true
};
ir.SetViewport(null, true);
ir.Clear(color: Color.SteelBlue);
const float scale = 0.65f;
var pos = new Vector2(Graphics.PreferredBackBufferWidth, Graphics.PreferredBackBufferHeight) / 2f;
ir.Draw(
Texture, pos, origin: Vector2.One * 0.5f, scale: Vector2.One * scale,
blendState: BlendState.Opaque,
samplerState: SamplerState.LinearClamp
);
ir.DrawString(
Font, "Hello, World!", Vector2.Zero,
blendState: BlendState.AlphaBlend,
material: Materials.ScreenSpaceShadowedBitmap
);
var sg = ir.MakeSubgroup();
sg.AutoIncrementLayer = true;
sg.SetViewport(new Rectangle(128, 128, 512, 512), true);
sg.FillRectangle(new Rectangle(0, 0, 1024, 1024), Color.Black, customMaterial: Vpos);
sg.SetViewport(null, true);
ir.Draw(
Rt, new Vector2(1920 - 512, 0)
);
}
}
private void DrawHud(Frame frame)
{
Rectangle titleSafeArea = GraphicsDevice.Viewport.TitleSafeArea;
Vector2 hudLocation = new Vector2(titleSafeArea.X, titleSafeArea.Y);
Vector2 center = new Vector2(titleSafeArea.X + titleSafeArea.Width / 2.0f,
titleSafeArea.Y + titleSafeArea.Height / 2.0f);
// Draw time remaining. Uses modulo division to cause blinking when the
// player is running out of time.
string timeString = "TIME: " + level.TimeRemaining.Minutes.ToString("00") + ":" + level.TimeRemaining.Seconds.ToString("00");
Color timeColor;
if (level.TimeRemaining > WarningTime ||
level.ReachedExit ||
(int)level.TimeRemaining.TotalSeconds % 2 == 0)
{
timeColor = Color.Yellow;
}
else
{
timeColor = Color.Red;
}
var renderer = new ImperativeRenderer(frame, materials, 100, blendState: BlendState.AlphaBlend);
renderer.DrawString(hudFont, timeString, hudLocation, timeColor, sortKey: 1);
renderer.DrawString(hudFont, timeString, hudLocation + Vector2.One, Color.Black, sortKey: 0);
var timeHeight = hudFont.MeasureString(timeString).Y;
hudLocation.Y = (float)Math.Floor(hudLocation.Y + (timeHeight * 1.2f));
var scoreText = "SCORE: " + level.Score;
renderer.DrawString(hudFont, scoreText, hudLocation, Color.Yellow, sortKey: 1);
renderer.DrawString(hudFont, scoreText, hudLocation + Vector2.One, Color.Black, sortKey: 0);
// Determine the status overlay message to show.
Texture2D status = null;
if (level.TimeRemaining == TimeSpan.Zero)
{
if (level.ReachedExit)
{
status = winOverlay;
}
else
{
status = loseOverlay;
}
}
else if (!level.Player.IsAlive)
{
status = diedOverlay;
}
if (status != null)
{
// Draw status message.
Vector2 statusSize = new Vector2(status.Width, status.Height);
renderer.Draw(status, center - statusSize / 2);
}
}
public override void Draw(GameTime gameTime, Frame frame)
{
ClearBatch.AddNew(frame, 4, Materials.Clear, clearColor: new Color(16, 32, 48));
var alphaGeometry = Materials.Get(Materials.ScreenSpaceGeometry, blendState: BlendState.AlphaBlend);
using (var gb = GeometryBatch.New(frame, 5, alphaGeometry)) {
gb.AddGradientFilledQuad(
Vector2.Zero, new Vector2(Graphics.PreferredBackBufferWidth, Graphics.PreferredBackBufferHeight),
Color.DarkSlateGray, Color.DarkSlateGray,
Color.SlateBlue, Color.SlateBlue
);
}
using (var gb = GeometryBatch.New(frame, 6, alphaGeometry)) {
var alphaBlack = new Color(0, 0, 0, 192);
var alphaBlack2 = new Color(0, 0, 0, 64);
gb.AddQuadBorder(
Playfield.Bounds.TopLeft + new Vector2(32 + 24, 0),
Playfield.Bounds.BottomRight + new Vector2(-32 - 24, 0),
alphaBlack2, alphaBlack, 24
);
}
// Render the contents of the trail buffer to the screen using additive blending
using (var bb = BitmapBatch.New(frame, 7, Materials.Trail)) {
bb.Add(new BitmapDrawCall(
TrailBuffer, Vector2.Zero, (float)TrailScale
));
}
// Render the paddles and ball to both the framebuffer and the trail buffer (note the different layer values)
using (var gb = GeometryBatch.New(frame, 8, alphaGeometry))
using (var gb2 = GeometryBatch.New(frame, 9, alphaGeometry))
using (var trailBatch = GeometryBatch.New(frame, 2, alphaGeometry)) {
foreach (var paddle in Paddles)
{
gb.AddFilledQuad(
paddle.Bounds.TopLeft, paddle.Bounds.BottomRight, Color.White
);
gb2.AddQuadBorder(
paddle.Bounds.TopLeft, paddle.Bounds.BottomRight, Color.Black, Color.Black, 2.25f
);
trailBatch.AddFilledQuad(
paddle.Bounds.TopLeft, paddle.Bounds.BottomRight, Color.White
);
}
gb.AddFilledRing(Ball.Position, 0.0f, Ball.Radius, Color.White, Color.White);
gb2.AddFilledRing(Ball.Position, Ball.Radius, Ball.Radius + 2.0f, Color.Black, Color.Black);
trailBatch.AddFilledRing(Ball.Position, 0.0f, Ball.Radius, Color.White, Color.White);
}
// Render the score values using a stringbatch (unfortunately this uses spritebatch to render spritefonts :( )
{
var ir = new ImperativeRenderer(frame, Materials, 10, blendState: BlendState.AlphaBlend);
ir.DrawString(
Font, String.Format("Player 1: {0:00}", Scores[0]),
new Vector2(16, 16)
);
var player2Text = String.Format("Player 2: {0:00}", Scores[1]);
ir.DrawString(
Font, player2Text,
new Vector2(Graphics.PreferredBackBufferWidth - 16 - Font.MeasureString(player2Text).X, 16)
);
}
// The first stage of our frame involves selecting the trail buffer as our render target (note that it's layer 0)
SetRenderTargetBatch.AddNew(frame, 0, TrailBuffer);
if (FirstFrame)
{
// If it's the first time we've rendered, we erase the trail buffer since it could contain anything
ClearBatch.AddNew(frame, 1, Materials.Clear, clearColor: Color.Black);
FirstFrame = false;
}
else
{
// Otherwise, we fade out the contents of the trail buffer
using (var gb = GeometryBatch.New(frame, 1, Materials.SubtractiveGeometry)) {
gb.AddFilledQuad(
new Bounds(Vector2.Zero, new Vector2(Graphics.PreferredBackBufferWidth, Graphics.PreferredBackBufferHeight)),
new Color(12, 12, 12, 0)
);
}
}
// After the trail buffer has been updated, we turn it off and begin rendering to the framebuffer. Note layer 3.
SetRenderTargetBatch.AddNew(frame, 3, null);
}