Initial commit

Torque/SDK/engine/editor/terraformerNoise.h

@@ -0,0 +1,58 @@
+//-----------------------------------------------------------------------------
+// Torque Game Engine
+// Copyright (C) GarageGames.com, Inc.
+//-----------------------------------------------------------------------------
+
+#ifndef _TERRAFORMER_NOISE_H_
+#define _TERRAFORMER_NOISE_H_
+
+
+#ifndef _PLATFORM_H_
+#include "platform/platform.h"
+#endif
+#ifndef _MMATH_H_
+#include "math/mMath.h"
+#endif
+#ifndef _MRANDOM_H_
+#include "math/mRandom.h"
+#endif
+
+struct Heightfield;
+
+class Noise2D
+{
+private:
+   enum Constants {
+      SIZE      = 0x100,
+      SIZE_MASK = 0x0ff
+   };
+   S32 mPermutation[SIZE + SIZE + 2];
+   F32 mGradient[SIZE + SIZE + 2][2];
+
+   U32 mSeed;
+
+   MRandom mRandom;
+
+   F32  lerp(F32 t, F32 a, F32 b);
+   F32  curve(F32 t);
+   void setup(F32 t, S32 &b0, S32 &b1, F32 &r0, F32 &r1);
+   F32  dot(const F32 *q, F32 rx, F32 ry);
+   void normalize(F32 v[2]);
+
+
+public:
+   Noise2D();
+   ~Noise2D();
+
+   void setSeed(U32 seed);
+   U32  getSeed();
+
+   F32  getValue(F32 u, F32 v, S32 interval);
+   void fBm(Heightfield *dst, U32 size, U32 interval, F32 h, F32 octave=5.0f);
+   void rigidMultiFractal(Heightfield *dst, Heightfield *signal, U32 size, U32 interval, F32 h, F32 octave=5.0f);
+   F32  turbulence(F32 x, F32 y, F32 freq);
+};
+
+
+
+#endif  // _H_TERRAFORMER_NOISE_