/// <summary>
/// This is called when the game should draw itself.
/// </summary>
/// <param name="gameTime">Provides a snapshot of timing values.</param>
protected override void Draw(GameTime gameTime)
{
GraphicsDevice.Clear(Color.Black);
spriteBatch.Begin();
spriteBatch.Draw(display, new Vector2(0, 0), Color.White);
spriteBatch.DrawString(scoreFont, "Gen:" + GA.generation.ToString(), new Vector2(60, 15), Color.White);
canvas.Draw(spriteBatch);
if (currentState != appState.SELECT)
{
canvas.DrawOntoGrid(spriteBatch, GA.GetBest());
}
if (currentState == appState.SELECT)
{
spriteBatch.Draw(select, new Vector2(540, 130), Color.White);
spriteBatch.DrawString(scoreFont, optionText[currentSelection], new Vector2(67, 517), Color.White);
}
else if (currentState == appState.DRAW)
{
spriteBatch.Draw(draw, new Vector2(540, 130), Color.White);
spriteBatch.DrawString(scoreFont, optionText[currentSelection], new Vector2(67, 517), Color.White);
}
else if (currentState == appState.COMPLETE)
{
spriteBatch.Draw(complete, new Vector2(540, 130), Color.White);
spriteBatch.DrawString(scoreFont, "Press Q to Quit or D to draw a new image", new Vector2(67, 517), Color.White);
}
spriteBatch.End();
base.Draw(gameTime);
}
/// <summary>
/// Allows the game to run logic such as updating the world,
/// checking for collisions, gathering input, and playing audio.
/// </summary>
/// <param name="gameTime">Provides a snapshot of timing values.</param>
protected override void Update(GameTime gameTime)
{
if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed || Keyboard.GetState().IsKeyDown(Keys.Escape))
{
Exit();
}
prevKS = currKS;
currKS = Keyboard.GetState();
switch (currentState)
{
case appState.SELECT:
GA.generation = 0;
if (currKS.IsKeyDown(Keys.Space))
{
SelectOption(currentSelection);
if (currentSelection != 0)
{
GA.InitPopulation();
GA.SetTarget(ImageData.ScanImage(targetImage));
currentState = appState.DRAW;
}
}
else if (currKS.IsKeyDown(Keys.Down))
{
if (prevKS.IsKeyUp(Keys.Down))
{
currentSelection++;
currentSelection = currentSelection % maxNumOptions;
}
}
else if (currKS.IsKeyDown(Keys.Up))
{
if (prevKS.IsKeyUp(Keys.Up))
{
currentSelection--;
if (currentSelection < 0)
{
currentSelection = currentSelection + maxNumOptions;
}
}
}
break;
case appState.DRAW:
if (!GA.complete)
{
GA.Update();
}
else
{
currentState = appState.COMPLETE;
}
break;
case appState.COMPLETE:
if (currKS.IsKeyDown(Keys.Q))
{
this.Exit();
}
else if (prevKS.IsKeyDown(Keys.D))
{
currentState = appState.SELECT;
}
break;
}
base.Update(gameTime);
}