Added Vector class and used it in the particle engine.

1 files changed, 134 insertions, 0 deletions

diff --git a/src/vector.h b/src/vector.h
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index 00000000..d6a74886
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+++ b/src/vector.h
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+/*
+ *  The Mana World
+ *  Copyright 2007 The Mana World Development Team
+ *
+ *  This file is part of The Mana World.
+ *
+ *  The Mana World 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 2 of the License, or
+ *  any later version.
+ *
+ *  The Mana World 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 The Mana World; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ *  $Id: tileset.h 3218 2007-03-21 21:56:12Z b_lindeijer $
+ */
+
+#ifndef _TMW_VECTOR_H_
+#define _TMW_VECTOR_H_
+
+/**
+ * Vector class. Represents either a 3D point in space, a velocity or a force.
+ * Provides several convenient operator overloads.
+ */
+class Vector
+{
+    public:
+        /**
+         * Constructor.
+         */
+        Vector():
+            x(0.0f),
+            y(0.0f),
+            z(0.0f)
+        {}
+
+        /**
+         * Constructor.
+         */
+        Vector(float x, float y, float z):
+            x(x),
+            y(y),
+            z(z)
+        {}
+
+        /**
+         * Copy constructor.
+         */
+        Vector(const Vector &v):
+            x(v.x),
+            y(v.y),
+            z(v.z)
+        {}
+
+        /**
+         * Scale vector operator.
+         */
+        Vector operator*(float c) const
+        {
+            return Vector(x * c,
+                          y * c,
+                          z * c);
+        }
+
+        /**
+         * In-place scale vector operator.
+         */
+        void operator*=(float c)
+        {
+            x *= c;
+            y *= c;
+            z *= c;
+        }
+
+        /**
+         * Scale vector operator.
+         */
+        Vector operator/(float c) const
+        {
+            return Vector(x / c,
+                          y / c,
+                          z / c);
+        }
+
+        /**
+         * Add vector operator.
+         */
+        Vector operator+(const Vector &v) const
+        {
+            return Vector(x + v.x,
+                          y + v.y,
+                          z + v.z);
+        }
+
+        /**
+         * In-place add vector operator.
+         */
+        void operator+=(const Vector &v)
+        {
+            x += v.x;
+            y += v.y;
+            z += v.z;
+        }
+
+        /**
+         * Substract vector operator.
+         */
+        Vector operator-(const Vector &v) const
+        {
+            return Vector(x - v.x,
+                          y - v.y,
+                          z - v.z);
+        }
+
+        /**
+         * In-place substract vector operator.
+         */
+        void operator-=(const Vector &v)
+        {
+            x -= v.x;
+            y -= v.y;
+            z -= v.z;
+        }
+
+        float x, y, z;
+};
+
+#endif