void TerrainProceduralDialog::makePertrub(float frequency, float distance)
{
setWorking(true);
PerlinNoise perlin;
perlin.setSeed(1);
perlin.initGradients();
int u, v;
float * temp = new float[m_mapWidth*m_mapDepth];
for (int i = 0; i < m_mapWidth; ++i)
for (int j = 0; j < m_mapDepth; ++j)
{
u = i + (int)(perlin.noise(frequency * i / (float)m_mapWidth, frequency * j / (float)m_mapDepth, 0) * distance);
v = j + (int)(perlin.noise(frequency * i / (float)m_mapWidth, frequency * j / (float)m_mapDepth, 1) * distance);
if (u < 0) u = 0; if (u >= m_mapWidth) u = m_mapWidth - 1;
if (v < 0) v = 0; if (v >= m_mapDepth) v = m_mapDepth - 1;
temp[i*m_mapWidth+j] = data[u*m_mapWidth+v];
}
for(int i=0;i<m_mapWidth*m_mapDepth;i++)
data[i]=temp[i];
delete temp;
updateImage();
setWorking(false);
}
void TerrainProceduralDialog::makePerlinNoise(float seed, float frequency)
{
setWorking(true);
PerlinNoise perlin;
perlin.setSeed(seed);
perlin.initGradients();
for(int i=0; i<m_mapWidth;i++)
for(int j=0; j<m_mapDepth;j++)
{
float value=perlin.noise(frequency * i / (float)m_mapWidth, frequency * j / (float)m_mapDepth, 0);
data[i*m_mapWidth+j]=value;
}
updateImage();
setWorking(false);
}
