using System; using System.Collections.Generic; using System.Linq; Canvas.Reset(); double sx = 400, sy = 300, sa = -3.142857 / 2, svx = 0, svy = 0; bool thrust = false; var bullets = new List<(double x, double y, double vx, double vy, double t)>(); var asteroids = new List<(double x, double y, double vx, double vy, double size)>(); var rand = new Random(); void SpawnAsteroid(double x, double y, double size) { double angle = rand.NextDouble() * 3.142857 * 2; double speed = 30 + rand.NextDouble() * 20; asteroids.Add((x, y, Math.Cos(angle) * speed, Math.Sin(angle) * speed, size)); } for (int i = 0; i < 5; i++) { SpawnAsteroid(rand.NextDouble() * 800, rand.NextDouble() * 600, 40); } Screen.OnUpdate(() => { double dt = Screen.DeltaTime; if (thrust) { svx += Math.Cos(sa) * 200 * dt; svy += Math.Sin(sa) * 200 * dt; } svx *= 0.99; svy *= 0.99; sx += svx * dt; sy += svy * dt; if (sx < 0) sx = Screen.Width; if (sx > Screen.Width) sx = 0; if (sy < 0) sy = Screen.Height; if (sy > Screen.Height) sy = 0; for (int i = bullets.Count - 1; i >= 0; i--) { var b = bullets[i]; b.x += b.vx * dt; b.y += b.vy * dt; b.t += dt; bullets[i] = b; if (b.t > 2 || b.x < 0 || b.x > Screen.Width || b.y < 0 || b.y > Screen.Height) { bullets.RemoveAt(i); } } // Update asteroids for (int i = 0; i < asteroids.Count; i++) { var a = asteroids[i]; a.x += a.vx * dt; a.y += a.vy * dt; if (a.x < 0) a.x = Screen.Width; if (a.x > Screen.Width) a.x = 0; if (a.y < 0) a.y = Screen.Height; if (a.y > Screen.Height) a.y = 0; asteroids[i] = a; } for (int i = asteroids.Count - 1; i >= 0; i--) { var a = asteroids[i]; for (int j = bullets.Count - 1; j >= 0; j--) { var b = bullets[j]; double dx = a.x - b.x; double dy = a.y - b.y; if (dx * dx + dy * dy < a.size * a.size) { bullets.RemoveAt(j); asteroids.RemoveAt(i); if (a.size > 15) { SpawnAsteroid(a.x, a.y, a.size / 2); SpawnAsteroid(a.x, a.y, a.size / 2); } break; } } } for (int i = 0; i < asteroids.Count; i++) { var a = asteroids[i]; double dx = a.x - sx; double dy = a.y - sy; if (dx * dx + dy * dy < (a.size + 10) * (a.size + 10)) { sx = 400; sy = 300; svx = 0; svy = 0; sa = -3.142857 / 2; } } if (asteroids.Count < 3) { double edge = rand.Next(4); double x = edge < 2 ? (edge == 0 ? 0 : Screen.Width) : rand.NextDouble() * Screen.Width; double y = edge >= 2 ? (edge == 2 ? 0 : Screen.Height) : rand.NextDouble() * Screen.Height; SpawnAsteroid(x, y, 40); } Canvas.Fill(0, 0, 0); Canvas.Rect(0, 0, Screen.Width, Screen.Height); Canvas.Fill(255, 255, 255); double shipSize = 15; double x1 = sx + Math.Cos(sa) * shipSize; double y1 = sy + Math.Sin(sa) * shipSize; double x2 = sx + Math.Cos(sa + 2.5) * shipSize * 0.6; double y2 = sy + Math.Sin(sa + 2.5) * shipSize * 0.6; double x3 = sx + Math.Cos(sa - 2.5) * shipSize * 0.6; double y3 = sy + Math.Sin(sa - 2.5) * shipSize * 0.6; Canvas.Circle(x1, y1, 2); Canvas.Circle(x2, y2, 2); Canvas.Circle(x3, y3, 2); Canvas.Circle(sx, sy, 3); if (thrust) { Canvas.Fill(255, 150, 0); double fx = sx - Math.Cos(sa) * shipSize * 0.8; double fy = sy - Math.Sin(sa) * shipSize * 0.8; Canvas.Circle(fx, fy, 4); } Canvas.Fill(255, 255, 0); foreach (var b in bullets) { Canvas.Circle(b.x, b.y, 2); } Canvas.Fill(150, 150, 150); foreach (var a in asteroids) { Canvas.Circle(a.x, a.y, a.size); } double targetAngle = Math.Atan2(Input.MouseY - sy, Input.MouseX - sx); double angleDiff = targetAngle - sa; while (angleDiff > 3.142857) angleDiff -= 3.142857 * 2; while (angleDiff < -3.142857) angleDiff += 3.142857 * 2; sa += angleDiff * 0.1; double dist = Math.Sqrt((Input.MouseX - sx) * (Input.MouseX - sx) + (Input.MouseY - sy) * (Input.MouseY - sy)); thrust = dist > 50; }); Input.OnMouseDown((button) => { if (button == 0) { double bvx = Math.Cos(sa) * 300; double bvy = Math.Sin(sa) * 300; bullets.Add((sx, sy, bvx, bvy, 0)); } });