v0.1

2015-07-31 21:05:55 +03:00
parent 23d847a4ac
commit 85b0cda4ca
181 changed files with 4455 additions and 4073 deletions
@@ -0,0 +1,50 @@
+using System;
+using FarseerPhysics.Dynamics;
+using Microsoft.Xna.Framework;
+
+namespace Subsurface
+{
+    static class Physics
+    {
+        private static double alpha;
+
+        public const Category CollisionNone         = Category.None;
+        public const Category CollisionAll          = Category.All;
+        public const Category CollisionWall         = Category.Cat1;
+        public const Category CollisionCharacter    = Category.Cat2;
+        public const Category CollisionPlatform     = Category.Cat3;
+        public const Category CollisionStairs       = Category.Cat4;
+        public const Category CollisionMisc         = Category.Cat5;
+        public const Category CollisionProjectile   = Category.Cat6;
+        public const Category CollisionLevel        = Category.Cat7;
+
+        public static double accumulator;
+        public static double step = 1.0f/60.0f;
+
+        public const float DisplayToSimRation = 100.0f;
+
+        public static double Alpha
+        {
+            get { return alpha; }
+            set { alpha = Math.Min(Math.Max(value, 0.0), 1.0); }
+        }
+
+        public static double Interpolate(double previous, double current)
+        {
+            return current * alpha + previous * (1.0 - alpha);
+        }
+
+        public static float Interpolate(float previous, float current)
+        {
+            return current * (float)alpha + previous * (1.0f - (float)alpha);
+        }
+
+        public static Vector2 Interpolate(Vector2 previous, Vector2 current)
+        {
+            return new Vector2(
+                Interpolate(previous.X, current.X), 
+                Interpolate(previous.Y, current.Y));
+        }
+    }
+
+}