ball spawning and velocity

Assets/Scripts/Dimensions.cs

@@ -41,6 +41,7 @@ public class Dimensions : MonoBehaviour {
 
 	private void Update() {
 		float height = mainCamera.orthographicSize * 2;
+		float allWidth = mainCamera.aspect * height;
 		float panelHeight = height * panelHeightPercentage / 100f;
 		float playGroundHeight = height - 2 * panelHeight;
 		float playGroundWidth = playGroundHeight * playGroundAspect;
@@ -84,7 +85,6 @@ public class Dimensions : MonoBehaviour {
 		playerPanelTop.transform.position = new Vector2(0, (height + Height) / 4);
 		playerPanelBottom.transform.position = new Vector2(0, -(height + Height) / 4);
 		
-		float allWidth = mainCamera.aspect * height;
 		playerPanelTop.size = playerPanelBottom.size = new Vector2(allWidth, panelHeight);
 
 		background.size = new Vector2(allWidth, playGroundHeight);

Assets/Scripts/Game/Ball.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Collections;
 using Unity.Netcode;
 using UnityEngine;
 using UnityEngine.Serialization;
@@ -9,9 +10,12 @@ namespace Game {
 		
 		public Rigidbody2D Rb { get; private set; }
 		public Player LastContactPlayer { get; private set; }
+		public bool IsPermanent { get; set; }
 
 		private CircleCollider2D Collider { get; set; }
 
+		private const float SpeedGain = 1.025f;
+		
 		public float Radius {
 			get => transform.localScale.x * Collider.radius;
 			set => transform.localScale = new Vector3(1, 1, 1) * value * 2;
@@ -19,7 +23,12 @@ namespace Game {
 
 		private void OnCollisionEnter2D(Collision2D other) {
 			if (other.gameObject.TryGetComponent(out Player player))
-				LastContactPlayer = player;
+				PlayerContact(player);
+		}
+
+		private void PlayerContact(Player player) {
+			LastContactPlayer = player;
+			Rb.velocity *= SpeedGain;
 		}
 
 		private void Awake() {
@@ -27,10 +36,5 @@ namespace Game {
 			Collider = GetComponent<CircleCollider2D>();
 		}
 
-		private void Start() {
-			Rb.velocity = new Vector2(0, 25);
-			Rb.position = new Vector2(Random.Range(-2, 2), 0);
-		}
-		
 	}
 }

Assets/Scripts/Game/DeathGate.cs

@@ -26,7 +26,8 @@ namespace Game {
 			Ball ball = other.GetComponent<Ball>();
 			GameManager.Singleton.RemoveBall(ball);
 
-			GameManager.Singleton.SpawnBall();
+			if (ball.IsPermanent)
+				GameManager.Singleton.SpawnBall(thisPlayer, true);
 		}
 
 	}

Assets/Scripts/Game/GameManager.cs

@@ -31,44 +31,10 @@ namespace Game {
 		public Player Player1 { get; private set; }
 		public Player Player2 { get; private set; }
 
-		private static void Tests() {
-			var v1 = new Vector2(1, 3);
-			var v2 = new Vector2(3, 2);
-			var v3 = new Vector2(4, 4);
-			var v4 = new Vector2(1, 1);
-			var v5 = new Vector2(4, 1);
-			var v6 = new Vector2(2, 5);
-			var v7 = new Vector2(2, 3);
-			var v8 = new Vector2(-1, 4);
-			var v9 = new Vector2(-2, 1);
-			var v10 = new Vector2(3, -1);
-			Vector2 p, rs;
-			Assert.IsTrue(AIPlayer.Intersect(v8, v4, v1, v9, out p, out rs));
-			Assert.IsTrue(AIPlayer.Intersect(v1, v2, v4, v7, out p, out rs));
-			Assert.IsTrue(AIPlayer.Intersect(v10, v6, v9, v2, out p, out rs));
-			Assert.IsTrue(AIPlayer.Intersect(v9, v5, v8, v10, out p, out rs));
-			Assert.IsFalse(AIPlayer.Intersect(v8, v4, v6, v5, out p, out rs));
-			Assert.IsFalse(AIPlayer.Intersect(v3, v5, v6, v8, out p, out rs));
-			Assert.IsFalse(AIPlayer.Intersect(v10, v4, v8, v9, out p, out rs));
-			Assert.IsFalse(AIPlayer.Intersect(v1, v7, v3, v2, out p, out rs));
-
-			var v11 = new Vector2(0, 0);
-			var v12 = new Vector2(0, 5);
-			var v13 = new Vector2(-2, 2);
-			var v14 = new Vector2(2, 2);
-			Assert.IsTrue(AIPlayer.Intersect(v11, v12, v13, v14, out p, out rs));
-			Assert.AreApproximatelyEqual(rs.x, 0.4f);
-			Assert.AreApproximatelyEqual(rs.y, 0.5f);
-		}
-
 		private void Awake() {
 			Settings.Type = Type.Hybrid;
 			Settings.AIDifficulty = Difficulty.Hard;
 
-			var ball = Instantiate(ballPrefab).GetComponent<Ball>();
-			Balls.Add(ball);
-			ball.Radius = 0.5f;
-
 			var p1Obj = Instantiate(playerPrefab);
 			var p2Obj = Instantiate(playerPrefab);
 			
@@ -100,7 +66,7 @@ namespace Game {
 			Player1 = p1;
 			Player2 = p2;
 			
-			Tests();
+			SpawnBall(Player1, true);
 		}
 
 		private IEnumerator Start() {
@@ -117,16 +83,29 @@ namespace Game {
 			mod.Properties = properties;
 		}
 
-		public void SpawnBall() {
-			Vector2 position = Vector2.zero;
-			Vector2 velocity = Vector2.up;
+		public void SpawnBall(Player towards, bool isPermanent) {
+			const float startSpeed = 15;
+			Vector2 position = new Vector2(0, -towards.transform.position.y * 0.5f);
 			var ball = Instantiate(ballPrefab, position, Quaternion.identity).GetComponent<Ball>();
-			var rb = ball.Rb;
-			rb.velocity = velocity;
+			ball.Rb.velocity = RandomDirectionTowards(towards) * startSpeed;
+			ball.IsPermanent = isPermanent;
+			ball.Radius = 0.5f;
 			
 			Balls.Add(ball);
 		}
 		
+		private static Vector2 RandomDirectionTowards(Player player) {
+			const float maxAngle = 45;
+			float radians = Random.Range(-maxAngle, maxAngle) * Mathf.PI / 180;
+			float x = Mathf.Sin(radians);
+			float y = Mathf.Cos(radians) * player.Side switch {
+				Side.Top => 1,
+				Side.Bottom => -1,
+				_ => throw new ArgumentOutOfRangeException()
+			};
+			return new Vector2(x, y);
+		}
+
 		public void RemoveBall(Ball ball) {
 			Balls.Remove(ball);
 			Destroy(ball.gameObject);

Assets/Scripts/Game/Player.cs

@@ -121,9 +121,11 @@ namespace Game {
 			if (!isThisClient)
 				return;
 
-			var keyboard = Keyboard.current;
-			//goingLeft = keyboard.aKey.isPressed;
-			//goingRight = keyboard.dKey.isPressed;
+			if (Application.isEditor) {
+				var keyboard = Keyboard.current;
+				goingLeft = keyboard.aKey.isPressed;
+				goingRight = keyboard.dKey.isPressed;
+			}
 
 			TryLinearMove(Time.fixedDeltaTime);
 		}

Assets/UI Toolkit/player_panel.uss

@@ -19,7 +19,7 @@
     margin-right: 10px;
     margin-top: 10px;
     margin-bottom: 10px;
-    background-color: rgba(91, 91, 91, 255);
+    background-color: rgb(91, 91, 91);
     flex-grow: 1;
 }
 
@@ -29,7 +29,7 @@
 }
 
 #score {
-    font-size: 50px;
+    font-size: 70px;
     -unity-font-style: bold;
     -unity-text-align: middle-center;
     margin-left: 5px;
@@ -49,8 +49,8 @@
 }
 
 .go:hover {
-    border-left-color: rgba(64, 72, 255, 255);
-    border-right-color: rgba(64, 72, 255, 255);
-    border-top-color: rgba(64, 72, 255, 255);
-    border-bottom-color: rgba(64, 72, 255, 255);
+    border-left-color: rgb(64, 72, 255);
+    border-right-color: rgb(64, 72, 255);
+    border-top-color: rgb(64, 72, 255);
+    border-bottom-color: rgb(64, 72, 255);
 }