AxleJoint ehdotus

luennot/luento17/Hirsipuu/Hirsipuu.cs

@@ -142,21 +142,31 @@ public class Hirsipuu : PhysicsGame
         Add(varjo, 2);
         varjo.MoveTo(kuu.Position - new Vector(kuu.Width, 0), 2);
 
+        // Pois Zoomaus
         double z = Camera.ZoomFactor;
         Timer timer = new Timer();
         timer.Interval = 0.1;
-        Color c1 = Color.Brown;
-        double colorFactor = 0.999;
         timer.Timeout += () =>
         {
             Camera.ZoomFactor = z;
             z *= 0.999;
+        };
+        timer.Start();
+        timer.Interval = 0.1;
+
+        // Pimennys
+        Timer timer2 = new Timer();
+        Color c1 = Color.Brown;
+        double colorFactor = 0.9;
+        timer2.Timeout += () =>
+        {
             Level.Background.CreateGradient(c1, Color.Black);
             c1.GreenComponent = (byte)(c1.GreenComponent * colorFactor);
             c1.RedComponent = (byte)(c1.RedComponent * colorFactor);
             c1.BlueComponent = (byte)(c1.BlueComponent * colorFactor);
         };
-        timer.Start();
+        timer2.Interval = 1;
+        timer2.Start();
         KysyUusi("Hävisit");
     }
 
@@ -284,7 +294,7 @@ public class Hirsi : PhysicsObject
         taso2 = LuoOlio(taso.Position - new Vector(0, 30), 600, 30, Kuva, 1, true, 0);
         r1 = LuoOlio(new Vector(taso.Right - kirjaimenKoko * 1.4 - 40 - 20, taso.Top + tolppanKorkeus / 2 - 20 + 1), 40, tolppanKorkeus + 20, Kuva, -1, false, 1);
         r2 = LuoOlio(new Vector(taso.Right - 20, taso.Top + tolppanKorkeus / 2 - 20 +1), 40, tolppanKorkeus + 20, Kuva, -1);
-        r2.CanRotate = false;
+        r1.CanRotate = r2.CanRotate = false;
 
         peli.Add(new AxleJoint(r1, taso, new Vector(0, -r1.Height / 2 + 10 + 15)));
         peli.Add(new AxleJoint(r2, taso, new Vector(0, -r2.Height / 2 + 10 + 15)));
@@ -356,7 +366,7 @@ public class Hirsi : PhysicsObject
         // peli.Remove(taso2);
         taso2.Position -= new Vector(0, 100);
         paa.Image = Game.LoadImage("kuollutpaa");
-        r2.CanRotate = true;
+        r1.CanRotate = r2.CanRotate = true;
 
         Explosion rajahdys = new Explosion(jakkara.Width);
         rajahdys.Position = new Vector(taso.Right, taso.Bottom);

luennot/luento17/Liitos/Liitos.cs

@@ -7,29 +7,91 @@ using Jypeli.Farseer;
 public class Liitos : PhysicsGame
 {
 
+    
+    public class AxleJoint : Jypeli.AxleJoint
+    {
+        
+        internal FSJoint InnerJoint
+        {
+            get
+            {
+                return (FSJoint)innerJoint;
+            }
+            set
+            {
+                innerJoint = value;
+            }
+
+        }
+
+
+        /// <summary>
+        /// Tällä voi säätää näytetäänkö liitospisteet
+        /// </summary>
+        public static bool DrawJointPoints { set; get; }
+
+
+        /// <summary>
+        /// Luo uuden akseliliitoksen kahden olion välille.
+        /// </summary>
+        /// <param name="firstObject">Ensimmäinen olio</param>
+        /// <param name="secondObject">Toinen olio</param>
+        /// <param name="axlePosition">Liitoksen akselin paikka</param>
+        public AxleJoint(PhysicsObject firstObject, PhysicsObject secondObject, Vector axlePosition, Vector axlePosition2)
+            : base(firstObject, secondObject, axlePosition)
+        {
+            World world = PhysicsGame.Instance.Engine as World;
+            var first = firstObject.Body as PhysicsBody;
+            var second = secondObject.Body as PhysicsBody;
+            var ap2 = firstObject.Position + axlePosition;
+            secondObject.Position = ap2 - axlePosition2;
+            InnerJoint = JointFactory.CreateDistanceJoint(world,
+                first.FSBody, second.FSBody,
+                axlePosition * FSConvert.DisplayToSim, axlePosition2 * FSConvert.DisplayToSim);
+                // axlePosition2 * FSConvert.DisplayToSim);
+            InnerJoint.DampingRatio = 0.5f;
+            InnerJoint.Frequency = 50;
+            if (!DrawJointPoints) return;
+
+            var dot = new GameObject(15, 15, Shape.Circle);
+            dot.Color = Color.Red;
+            dot.Position = firstObject.Position + axlePosition;
+            firstObject.Add(dot);
+            dot = new GameObject(10, 10, Shape.Circle);
+            dot.Color = Color.Green;
+            dot.Position = secondObject.Position + axlePosition2;
+            secondObject.Add(dot);
+            //InnerJoint.Enabled = false;
+        }
+
+    }
+    
+
     public override void Begin()
     {
-        // AxleJoint.DrawJointPoints = true;
+        AxleJoint.DrawJointPoints = true;
+        double w = 100;
+        double h = 20; 
+
         Level.Background.Color = Color.Black;
-        var osa1 = new PhysicsObject(200, 30);
+        var osa1 = new PhysicsObject(w, h);
+        osa1.Position = new Vector(-w, 300);
         osa1.MakeStatic();
-        osa1.AddCollisionIgnoreGroup(1);
+        // osa1.AddCollisionIgnoreGroup(1);
         Add(osa1);
 
-        var osa2 = new PhysicsObject(200, 30);
-        osa2.Position = new Vector(osa1.Width, 0);
-        osa2.AddCollisionIgnoreGroup(1);
-        Add(osa2);
-        var liitos = new AxleJoint(osa1, osa2, new Vector(osa1.Width/2, 0));
-        // liitos.Softness = 0;
-        Add(liitos);
-
-        var osa3 = new PhysicsObject(200, 30);
-        osa3.Position = new Vector(osa1.Width+ osa2.Width, 0);
-        osa3.AddCollisionIgnoreGroup(1);
-        Add(osa3);
-        var liitos2 = new AxleJoint(osa2, osa3, new Vector(osa2.Width / 2, 0));
-        Add(liitos2);
+        var osa = osa1;
+
+        for (int i = 0; i < 5; i++)
+        {
+            var osa2 = new PhysicsObject(w, h);
+            // osa2.AddCollisionIgnoreGroup(1);
+            Add(osa2);
+            var liitos = new AxleJoint(osa, osa2, new Vector(osa.Width / 2, 0), new Vector(-osa2.Width / 2, 0));
+            // liitos.Softness = 0;
+            Add(liitos);
+            osa = osa2;
+        }  
 
         Gravity = new Vector(0, -400);
     }