summaryrefslogtreecommitdiffstats
path: root/src/Noise.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/Noise.cpp')
-rw-r--r--src/Noise.cpp174
1 files changed, 0 insertions, 174 deletions
diff --git a/src/Noise.cpp b/src/Noise.cpp
index d3098c295..d16c0849c 100644
--- a/src/Noise.cpp
+++ b/src/Noise.cpp
@@ -1043,10 +1043,6 @@ NOISE_DATATYPE cImprovedNoise::GetValueAt(int a_X, int a_Y, int a_Z)
a_Z = a_Z & 255;
int A = m_Perm[a_X] + a_Y;
int AA = m_Perm[A] + a_Z;
- int AB = m_Perm[A + 1] + a_Z;
- int B = m_Perm[a_X + 1] + a_Y;
- int BA = m_Perm[B] + a_Z;
- int BB = m_Perm[B + 1] + a_Z;
return Grad(m_Perm[AA], 0, 0, 0);
}
@@ -1056,176 +1052,6 @@ NOISE_DATATYPE cImprovedNoise::GetValueAt(int a_X, int a_Y, int a_Z)
////////////////////////////////////////////////////////////////////////////////
-// cPerlinNoise:
-
-cPerlinNoise::cPerlinNoise(void) :
- m_Seed(0)
-{
-}
-
-
-
-
-
-cPerlinNoise::cPerlinNoise(int a_Seed) :
- m_Seed(a_Seed)
-{
-}
-
-
-
-
-
-void cPerlinNoise::SetSeed(int a_Seed)
-{
- m_Seed = a_Seed;
-}
-
-
-
-
-
-void cPerlinNoise::AddOctave(float a_Frequency, float a_Amplitude)
-{
- m_Octaves.push_back(cOctave(m_Seed * ((int)m_Octaves.size() + 4) * 4 + 1024, a_Frequency, a_Amplitude));
-}
-
-
-
-
-
-void cPerlinNoise::Generate2D(
- NOISE_DATATYPE * a_Array, ///< Array to generate into [x + a_SizeX * y]
- int a_SizeX, int a_SizeY, ///< Count of the array, in each direction
- NOISE_DATATYPE a_StartX, NOISE_DATATYPE a_EndX, ///< Noise-space coords of the array in the X direction
- NOISE_DATATYPE a_StartY, NOISE_DATATYPE a_EndY, ///< Noise-space coords of the array in the Y direction
- NOISE_DATATYPE * a_Workspace ///< Workspace that this function can use and trash
-) const
-{
- if (m_Octaves.empty())
- {
- // No work to be done
- ASSERT(!"Perlin: No octaves to generate!");
- return;
- }
-
- bool ShouldFreeWorkspace = (a_Workspace == nullptr);
- int ArrayCount = a_SizeX * a_SizeY;
- if (ShouldFreeWorkspace)
- {
- a_Workspace = new NOISE_DATATYPE[ArrayCount];
- }
-
- // Generate the first octave directly into array:
- const cOctave & FirstOctave = m_Octaves.front();
-
- FirstOctave.m_Noise.Generate2D(
- a_Workspace, a_SizeX, a_SizeY,
- a_StartX * FirstOctave.m_Frequency, a_EndX * FirstOctave.m_Frequency,
- a_StartY * FirstOctave.m_Frequency, a_EndY * FirstOctave.m_Frequency
- );
- NOISE_DATATYPE Amplitude = FirstOctave.m_Amplitude;
- for (int i = 0; i < ArrayCount; i++)
- {
- a_Array[i] = a_Workspace[i] * Amplitude;
- }
-
- // Add each octave:
- for (cOctaves::const_iterator itr = m_Octaves.begin() + 1, end = m_Octaves.end(); itr != end; ++itr)
- {
- // Generate cubic noise for the octave:
- itr->m_Noise.Generate2D(
- a_Workspace, a_SizeX, a_SizeY,
- a_StartX * itr->m_Frequency, a_EndX * itr->m_Frequency,
- a_StartY * itr->m_Frequency, a_EndY * itr->m_Frequency
- );
- // Add the cubic noise into the output:
- NOISE_DATATYPE Amplitude = itr->m_Amplitude;
- for (int i = 0; i < ArrayCount; i++)
- {
- a_Array[i] += a_Workspace[i] * Amplitude;
- }
- }
-
- if (ShouldFreeWorkspace)
- {
- delete[] a_Workspace;
- a_Workspace = nullptr;
- }
-}
-
-
-
-
-
-void cPerlinNoise::Generate3D(
- NOISE_DATATYPE * a_Array, ///< Array to generate into [x + a_SizeX * y + a_SizeX * a_SizeY * z]
- int a_SizeX, int a_SizeY, int a_SizeZ, ///< Count of the array, in each direction
- NOISE_DATATYPE a_StartX, NOISE_DATATYPE a_EndX, ///< Noise-space coords of the array in the X direction
- NOISE_DATATYPE a_StartY, NOISE_DATATYPE a_EndY, ///< Noise-space coords of the array in the Y direction
- NOISE_DATATYPE a_StartZ, NOISE_DATATYPE a_EndZ, ///< Noise-space coords of the array in the Z direction
- NOISE_DATATYPE * a_Workspace ///< Workspace that this function can use and trash
-) const
-{
- if (m_Octaves.empty())
- {
- // No work to be done
- ASSERT(!"Perlin: No octaves to generate!");
- return;
- }
-
- bool ShouldFreeWorkspace = (a_Workspace == nullptr);
- int ArrayCount = a_SizeX * a_SizeY * a_SizeZ;
- if (ShouldFreeWorkspace)
- {
- a_Workspace = new NOISE_DATATYPE[ArrayCount];
- }
-
- // Generate the first octave directly into array:
- const cOctave & FirstOctave = m_Octaves.front();
-
- FirstOctave.m_Noise.Generate3D(
- a_Workspace, a_SizeX, a_SizeY, a_SizeZ,
- a_StartX * FirstOctave.m_Frequency, a_EndX * FirstOctave.m_Frequency,
- a_StartY * FirstOctave.m_Frequency, a_EndY * FirstOctave.m_Frequency,
- a_StartZ * FirstOctave.m_Frequency, a_EndZ * FirstOctave.m_Frequency
- );
- NOISE_DATATYPE Amplitude = FirstOctave.m_Amplitude;
- for (int i = 0; i < ArrayCount; i++)
- {
- a_Array[i] = a_Workspace[i] * Amplitude;
- }
-
- // Add each octave:
- for (cOctaves::const_iterator itr = m_Octaves.begin() + 1, end = m_Octaves.end(); itr != end; ++itr)
- {
- // Generate cubic noise for the octave:
- itr->m_Noise.Generate3D(
- a_Workspace, a_SizeX, a_SizeY, a_SizeZ,
- a_StartX * itr->m_Frequency, a_EndX * itr->m_Frequency,
- a_StartY * itr->m_Frequency, a_EndY * itr->m_Frequency,
- a_StartZ * itr->m_Frequency, a_EndZ * itr->m_Frequency
- );
- // Add the cubic noise into the output:
- NOISE_DATATYPE Amplitude = itr->m_Amplitude;
- for (int i = 0; i < ArrayCount; i++)
- {
- a_Array[i] += a_Workspace[i] * Amplitude;
- }
- }
-
- if (ShouldFreeWorkspace)
- {
- delete[] a_Workspace;
- a_Workspace = nullptr;
- }
-}
-
-
-
-
-
-////////////////////////////////////////////////////////////////////////////////
// cRidgedMultiNoise:
cRidgedMultiNoise::cRidgedMultiNoise(void) :