Ported .Net Core commits:

hondacrx: - Initial commit: Switch to .Net Core 2.0 - Fix build and removed not needed files Fabi: - Updated solution platforms. - Changed folder structure. - Change library target framework to netstandard2.0. - Updated solution platforms again... - Removed windows specific kernel32 function usage (Ctrl-C handler).
2017-10-26 17:23:44 +02:00
parent 227702e19c
commit a3dc7b3f48
844 changed files with 26064 additions and 1824 deletions
@@ -0,0 +1,118 @@
+/*
+ * Copyright (C) 2012-2017 CypherCore <http://github.com/CypherCore>
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+using System;
+
+namespace Framework.GameMath
+{
+    class CollisionDetection
+    {
+        public static float collisionTimeForMovingPointFixedAABox(Vector3 origin, Vector3 dir, AxisAlignedBox box, ref Vector3 location, out bool Inside)
+        {
+            Vector3 normal = Vector3.Zero;
+            if (collisionLocationForMovingPointFixedAABox(origin, dir, box, ref location, out Inside, ref normal))
+            {
+                return (location - origin).magnitude();
+            }
+            else
+            {
+                return float.PositiveInfinity;
+            }
+        }
+        public static bool collisionLocationForMovingPointFixedAABox(Vector3 origin, Vector3 dir, AxisAlignedBox box, ref Vector3 location, out bool Inside, ref Vector3 normal)
+        {
+            Inside = true;
+            Vector3 MinB = box.Lo;
+            Vector3 MaxB = box.Hi;
+            Vector3 MaxT = new Vector3(-1.0f, -1.0f, -1.0f);
+
+            // Find candidate planes.
+            for (int i = 0; i < 3; ++i)
+            {
+                if (origin[i] < MinB[i])
+                {
+                    location[i] = MinB[i];
+                    Inside = false;
+
+                    // Calculate T distances to candidate planes
+                    if ((uint)dir[i] != 0)
+                    {
+                        MaxT[i] = (MinB[i] - origin[i]) / dir[i];
+                    }
+                }
+                else if (origin[i] > MaxB[i])
+                {
+                    location[i] = MaxB[i];
+                    Inside = false;
+
+                    // Calculate T distances to candidate planes
+                    if ((uint)dir[i] != 0)
+                    {
+                        MaxT[i] = (MaxB[i] - origin[i]) / dir[i];
+                    }
+                }
+            }
+
+            if (Inside)
+            {
+                // Ray origin inside bounding box
+                location = origin;
+                return false;
+            }
+
+            // Get largest of the maxT's for final choice of intersection
+            int WhichPlane = 0;
+            if (MaxT[1] > MaxT[WhichPlane])
+            {
+                WhichPlane = 1;
+            }
+
+            if (MaxT[2] > MaxT[WhichPlane])
+            {
+                WhichPlane = 2;
+            }
+
+            // Check final candidate actually inside box
+            if (Convert.ToBoolean((uint)MaxT[WhichPlane] & 0x80000000))
+            {
+                // Miss the box
+                return false;
+            }
+
+            for (int i = 0; i < 3; ++i)
+            {
+                if (i != WhichPlane)
+                {
+                    location[i] = origin[i] + MaxT[WhichPlane] * dir[i];
+                    if ((location[i] < MinB[i]) ||
+                        (location[i] > MaxB[i]))
+                    {
+                        // On this plane we're outside the box extents, so
+                        // we miss the box
+                        return false;
+                    }
+                }
+            }
+
+            // Choose the normal to be the plane normal facing into the ray
+            normal = Vector3.Zero;
+            normal[WhichPlane] = (float)((dir[WhichPlane] > 0) ? -1.0 : 1.0);
+
+            return true;
+        }
+    }
+}