using System; using System.Collections.Generic; using System.Linq; public static class Program { public static PongGame Instance; public static void Main(string[] args) { Instance = new PongGame(); Input.OnMouseDown((int button) => Instance.UserInputStart("mouse", [button])); Input.OnMouseUp((int button) => Instance.UserInputEnd("mouse", [button])); Input.OnKeyDown((string key) => Instance.UserInputStart("keyboard", [key])); Input.OnKeyUp((string key) => Instance.UserInputEnd("keyboard", [key])); Input.OnTouchStart((int _, double x, double y) => Instance.UserInputStart("touch", [x, y])); Input.OnTouchEnd((int _) => Instance.UserInputEnd("touch", [])); Screen.OnUpdate(() => Instance.Frame(Screen.DeltaTime)); Instance.Begin(); } } public class PongGame { // RANDOMIZER readonly Random Randomizer = new Random(); public Dictionary Ball { get; private set; } public Dictionary Paddle { get; private set; } public const int PaddleWidth = 100; public const int PaddleHeight = 10; public const int ViewportX = 640; public const int ViewportY = 480; public const int PaddleLength = 100; public const int BallRadius = 30; public const int PaddleY = -100; public int PaddleMoveSpeed = 10; const double MaxStartSpeedX = 2.5; const double MaxStartSpeedY = 2.5; bool recentlyCollidedS = false; bool recentlyCollidedE = false; bool recentlyCollidedP = false; public Dictionary Control { get; private set; } const int StartingLives = 3; public int LiveTakeaway { get; set; } = 1; public int Lives { get; private set; } public int Score { get; set; } const int StartingScore = 0; const int ScoreGrant = 1; public readonly Dictionary LivesUI = new() { ["Color"] = new List() {255.0, 0.0, 0.0}, ["Size(Unsquared)"] = 20d, ["OutlineColor"] = new List() {0.0, 0.0, 0.0}, ["Spacing"] = 10d }; public void UserInputStart(string type, object[] args) { if (type == "keyboard") { if ((string)args[0] == "a") { Control["a"] = true; } else if ((string)args[0] == "d") { Control["d"] = true; } } else if (type == "mouse") { Control["hold"] = true; } else if (type == "touch") { if ((double)args[0] - Screen.CenterX > 0) { Control["touchd"] = true; } else if ((double)args[0] - Screen.CenterX < 0) { Control["toucha"] = true; } } } public void UserInputEnd(string type, object[] args) { if (type == "keyboard") { if ((string)args[0] == "a") { Control["a"] = false; } else if ((string)args[0] == "d") { Control["d"] = false; } } else if (type == "mouse") { Control["hold"] = false; } else if (type == "touch") { Control["toucha"] = false; Control["touchd"] = false; } } public PongGame() { Ball = new Dictionary() { ["x"] = 0.0, ["y"] = 0.0, ["vx"] = 0.0, ["vy"] = 0.0, ["r"] = (double)BallRadius }; Paddle = new Dictionary() { ["x"] = 0.0, ["y"] = (double)PaddleY, ["w"] = (double)PaddleWidth, ["h"] = (double)PaddleHeight }; Control = new Dictionary() { ["a"] = false, ["d"] = false, ["hold"] = false, ["toucha"] = false, ["touchd"] = false }; } public void Begin() { Ball["vx"] = Randomizer.NextDouble() * (MaxStartSpeedX - 0.01) + MaxStartSpeedX; Ball["vy"] = Randomizer.NextDouble() * (MaxStartSpeedY - 0.01) + MaxStartSpeedY; Lives = StartingLives; double min = -ViewportX / 2 + (double)Paddle["w"] / 2; double max = ViewportX / 2 - (double)Paddle["w"] / 2; Paddle["x"] = Randomizer.NextDouble() * (max - min) + min; } public void Frame(double delta) { // Fill the screen in a very dark grey Canvas.Fill(20, 20, 20, 1); Canvas.NoStroke(); Canvas.Rect(0, 0, Screen.Width, Screen.Height, 0); // Lost? You suck if (Lives <= 0) { Canvas.Fill(255, 255, 255, 1); string gameOver = "Game Over"; Canvas.Font("Arial", 40); Canvas.Text(gameOver, Screen.CenterX - Canvas.MeasureText(gameOver) / 2, Screen.CenterY - 20); return; } // Draw a rect to show the game boundries Canvas.NoFill(); Canvas.Stroke(255, 255, 255, 255); Canvas.LineWidth(5); Canvas.Rect(Screen.CenterX - ViewportX / 2, Screen.CenterY - ViewportY / 2, ViewportX, ViewportY); // Draw the ball Canvas.Fill(255, 255, 255, 1); Canvas.NoStroke(); Canvas.Circle(Screen.CenterX + (double)Ball["x"], Screen.CenterY - (double)Ball["y"], (double)Ball["r"]); // Ball movement with the velocity double vx = (double)Ball["vx"]; double vy = (double)Ball["vy"]; Ball["x"] = (double)Ball["x"] + vx; Ball["y"] = (double)Ball["y"] + vy; // Bouncy ball :) bool boundingR = (double)Ball["x"] > ViewportX / 2 - (double)Ball["r"]; bool boundingL = (double)Ball["x"] < -ViewportX / 2 + (double)Ball["r"]; bool boundingT = (double)Ball["y"] > ViewportY / 2 - (double)Ball["r"]; bool boundingB = (double)Ball["y"] < -ViewportY / 2 + (double)Ball["r"]; if ((boundingL || boundingR) && !recentlyCollidedS) { recentlyCollidedS = true; Ball["vx"] = (double)Ball["vx"] * -1; vx *= -1; } else if (!(boundingL || boundingT)) recentlyCollidedS = false; if ((boundingB || boundingT) && !recentlyCollidedE) { recentlyCollidedE = true; Ball["vy"] = (double)Ball["vy"] * -1; vy *= -1; if (boundingB && !boundingT) Lives -= LiveTakeaway; } else if (!(boundingB || boundingT)) recentlyCollidedE = false; bool boundingP = (Math.Abs((double)Ball["x"] - (double)Paddle["x"]) - (double)Ball["r"] < (double)Paddle["w"] / 2) && (Math.Abs((double)Ball["y"] - (double)Paddle["y"]) - (BallRadius + (double)Paddle["h"] / 2) < (double)Paddle["h"] / 2); if (boundingP && !recentlyCollidedP) { recentlyCollidedP = true; Ball["vy"] = (double)Ball["vy"] * -1; vy *= -1; Score += ScoreGrant; } else if (!boundingP) recentlyCollidedP = false; // Draw da paddle Canvas.Fill(255, 255, 255, 1); Canvas.Rect((Screen.CenterX - (double)Paddle["w"] / 2) + (double)Paddle["x"], (Screen.CenterY + (double)Paddle["h"] / 2) - (double)Paddle["y"], (double)Paddle["w"], (double)Paddle["h"]); // Paddle movement if ((bool)Control["a"] || ((bool)Control["hold"] && Input.MouseX - Screen.CenterX < 0) || (bool)Control["toucha"]) Paddle["x"] = (double)Paddle["x"] - PaddleMoveSpeed; if ((bool)Control["d"] || ((bool)Control["hold"] && Input.MouseX - Screen.CenterX > 0) || (bool)Control["touchd"]) Paddle["x"] = (double)Paddle["x"] + PaddleMoveSpeed; if ((double)Paddle["x"] < -ViewportX / 2 + (double)Paddle["w"] / 2) Paddle["x"] = (double)Paddle["x"] + PaddleMoveSpeed; if ((double)Paddle["x"] > ViewportX / 2 - (double)Paddle["w"] / 2) Paddle["x"] = (double)Paddle["x"] - PaddleMoveSpeed; // Score handling int currentScore = Score; Canvas.Font("Arial", 35); string scoreText = $"Score: {currentScore.ToString()}"; double determinedCenterX = Screen.CenterX - Canvas.MeasureText(scoreText) / 2.0; Canvas.Text(scoreText, determinedCenterX, 30); // Lives handling double w = Lives * (double)LivesUI["Size(Unsquared)"] * 2 + (Lives - 1) * (double)LivesUI["Spacing"]; double x = (Screen.CenterX - w / 2) + (double)LivesUI["Size(Unsquared)"]; double trueSpacing = (double)LivesUI["Size(Unsquared)"] * 2 + (double)LivesUI["Spacing"]; double y = Screen.Height - 40; Canvas.Fill(((List)LivesUI["Color"])[0], ((List)LivesUI["Color"])[1], ((List)LivesUI["Color"])[2], 255); Canvas.Stroke(((List)LivesUI["OutlineColor"])[0], ((List)LivesUI["OutlineColor"])[1], ((List)LivesUI["OutlineColor"])[2], 1); Canvas.LineWidth(5); for (int i = 0; i <= Lives - 1; i++) { Canvas.Circle(x + trueSpacing * i, y, (double)LivesUI["Size(Unsquared)"]); } } }