Building XNA 2 0 Games- P10 pptx

... the following:float[] paddleLoc = new float[] { 300 .0f, 300 .0f };Vector2 ballLoc = new Vector2( 400 .0f, 300 .0f);Vector2 ballTraj = new Vector2();bool playing = false;Because we have two paddles, ... < 100 .0f) paddleLoc[i] = 100 .0f; if (paddleLoc[i] > 500 .0f) paddleLoc[i] = 500 .0f; if (!playing) { if (state.Buttons.A == ButtonState.Pressed) { playing = true; ballLoc.X = 400 .0f; ... Both paddles will start at location 300 .0f, which is vertically centered on our 800 × 600 screen. BallLoc, the ball location, is initialized as 400 .0f, 300 .0f, or dead center, and ballTraj, the...

... text.Size = 0. 8f; spriteBatch.Begin(SpriteBlendMode.AlphaBlend); spriteBatch.Draw(nullTex, new Rectangle( 500 , 20 , 28 0, 5 50) , new Color (0, 0, 0, 100 )); spriteBatch.End(); for (int i = 0; i < ... it.text.Size = 3.0f;text.Color = new Color (0, 0, 0, 125 );for (int i = 0; i < 3; i++){ if (i == 2) text.Color = Color.White; text.DrawText (25 - i * 2, 25 0 - i * 2, "Zombie Smashers XNA FTW!");}base.Draw(gameTime);CHAPTER ... spriteBatch.Begin(SpriteBlendMode.AlphaBlend); spriteBatch.Draw(iconsTex, new Vector2(mosX, mosY), new Rectangle (0, 0, 32, 32) , Color.White, 0. 0f, new Vector2 (0, 0) , 1.0f, SpriteEffects.None, 0. 0f); spriteBatch.End();}Put a call...