102 lines
4.0 KiB
C#
102 lines
4.0 KiB
C#
class Ship : Logic, Renderable
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{
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const double SPEED = 3;
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const double ROTATION_SPEED = 5;
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double rotation = 0;
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bool thrust = false;
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private double dx, dy = 0;
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double x;
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double y;
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DateTime lastShot = DateTime.Now;
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public Ship(double x, double y)
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{
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this.x = x;
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this.y = y;
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}
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public void Update(KeyState keyState, double dt)
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{
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thrust = false;
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if (keyState.isPressed(Control.LEFT))
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{
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rotation -= ROTATION_SPEED * dt;
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}
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if (keyState.isPressed(Control.RIGHT))
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{
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rotation += ROTATION_SPEED * dt;
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}
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if (keyState.isPressed(Control.THRUST))
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{
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thrust = true;
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this.dx += Math.Cos(rotation) * SPEED * dt;
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this.dy += Math.Sin(rotation) * SPEED * dt;
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}
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if (keyState.isPressed(Control.SHOOT) && (DateTime.Now - lastShot).TotalMilliseconds > 200)
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{
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lastShot = DateTime.Now;
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var shot = new Shot(x, y, rotation);
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Scene.Instance.AudioPlayer.Play(Sound.SHOT);
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Scene.Instance.Shots.Add(shot);
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}
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rotation = rotation % (2 * Math.PI);
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if (rotation < 0)
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{
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rotation += 2 * Math.PI;
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}
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this.x += this.dx;
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this.y += this.dy;
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this.dx *= 0.9998;
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this.dy *= 0.9998;
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this.x = this.x % Scene.SCREEN_WIDTH;
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this.y = this.y % Scene.SCREEN_HEIGHT;
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if (this.x < 0)
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{
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this.x += Scene.SCREEN_WIDTH;
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}
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if (this.y < 0)
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{
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this.y += Scene.SCREEN_HEIGHT;
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}
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foreach (var asteroid in Scene.Instance.Asteroids)
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{
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var halfAsteroidSize = (int)asteroid.Size / 2;
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if (Point.Distance(x, y, asteroid.X - halfAsteroidSize, asteroid.Y - halfAsteroidSize) < halfAsteroidSize + 3)
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{
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Scene.Instance.Loose();
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}
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}
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}
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public void Render(Renderer renderer, double dx)
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{
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renderer.setColor(255, 255, 255);
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renderer.DrawLines(new double[][] {
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new double[] { x + Math.Cos(rotation) * 10, y + Math.Sin(rotation) * 10 },
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new double[] { x + Math.Cos(rotation + (Math.PI * 2) / 3) * 10, y + Math.Sin(rotation + (Math.PI * 2) / 3) * 10 },
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new double[] { x + Math.Cos(rotation) * 10, y + Math.Sin(rotation) * 10 },
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new double[] { x + Math.Cos(rotation + (Math.PI * 2) / 3 * 2) * 10, y + Math.Sin(rotation + (Math.PI * 2) / 3 * 2) * 10 },
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});
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renderer.DrawLines(new double[][] {
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new double[] { x + Math.Cos(rotation + (Math.PI * 2) / 3) * 5, y + Math.Sin(rotation + (Math.PI * 2) / 3) * 5 },
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new double[] { x + Math.Cos(rotation + (Math.PI * 2) / 3 * 2) * 5, y + Math.Sin(rotation + (Math.PI * 2) / 3 * 2) * 5 },
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});
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if (thrust)
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{
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renderer.setColor(255, 0, 0);
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var random = new Random();
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// Draw flame behind ship
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renderer.DrawLines(new double[][] {
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new double[] { x + Math.Cos(rotation + (Math.PI * 2) / 3) * 10, y + Math.Sin(rotation + (Math.PI * 2) / 3) * 10 },
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new double[] { x + Math.Cos(rotation + (Math.PI * 2) / 3 * 1.2) * 5+random.Next(5), y + Math.Sin(rotation + (Math.PI * 2) / 3 * 1.2) * 5+random.Next(5) },
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new double[] { x + Math.Cos(rotation + (Math.PI * 2) / 3 * 1.4) * 10, y + Math.Sin(rotation + (Math.PI * 2) / 3 * 1.4) * 10 },
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new double[] { x + Math.Cos(rotation + (Math.PI * 2) / 3 * 1.6) * 6+random.Next(5), y + Math.Sin(rotation + (Math.PI * 2) / 3 * 1.6) * 5+random.Next(4) },
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new double[] { x + Math.Cos(rotation + (Math.PI * 2) / 3 * 1.8) * 10, y + Math.Sin(rotation + (Math.PI * 2) / 3 * 1.8) * 10 },
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new double[] { x + Math.Cos(rotation + (Math.PI * 2) / 3 * 2) * 5+random.Next(5), y + Math.Sin(rotation + (Math.PI * 2) / 3 * 2) * 5+random.Next(5) },
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});
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}
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}
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}
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