Added jumping

Was annoying to add but it works.

Scripts/Globals.cs

@@ -8,6 +8,11 @@ public partial class Globals : Node {
 
     public static float MovementSpeed = 800f;
     public static float DefaultMovementSpeed = MovementSpeed;
+    public static float JumpHeight = -0.5f;
+    public static float DefaultJumpHeight = JumpHeight;
+    public static float Gravity = 0.0005f;
+    public static float DefaultGravity = JumpHeight;
+
     public static string ActiveEffect = "none";
     public static float EffectTimer = 0f;