public Sample(Sample sample)
{
this.MAX_SIZE = sample.MAX_SIZE;
values = new List<int>(MAX_SIZE);
for (int i = 0; i < MAX_SIZE; i++)
{
values.Add(sample.values[i]);
}
this.level = sample.level;
}
public string GenerateWord(int size_x, bool use_size)
{
int letter;
int pos_x;
string word = "";
ValueMap letters = new ValueMap(size_x, 1);
Sample key = new Sample(SAMPLE_X);
// Init the random number generator
randgen.Init();
pos_x = 0;
letter = -1;
while (pos_x < size_x)
{
// find the letter
key = GetSample(letters, pos_x);
letter = GenerateIndex(key, use_size);
letters.SetValue(letter, pos_x, 0);
if (letter >= (GRID_SIZE - 1))
{
break;
}
if (letter < 0)
{
break;
}
pos_x++;
}
for (pos_x = 0; pos_x < size_x; pos_x++)
{
letter = letters.GetValue(pos_x, 0);
// if color does not exist, exit
if (letter < 0)
{
return word;
}
if (letter >= (GRID_SIZE - 1))
{
return word;
}
word += char_set.GetLetter((int)(letter - 1));
}
return word;
}
public Sample GetSample(ValueMap letters, int pos_x)
{
Sample key = new Sample(SAMPLE_X);
int x = pos_x - SAMPLE_X + 1;
for (int i = 0; i < SAMPLE_X; i++)
{
if ((x + i) < 0) key.Set(0, i);
else if ((x + i) >= letters.GetSizeX()) key.Set(GRID_SIZE - 1, i);
else key.Set(letters.GetValue(x + i, 0), i);
}
return key;
}
int GetUsageCount(Sample key)
{
if (usage.ContainsKey(key))
{
return usage[key];
}
return 0;
}
int GenerateIndex(Sample sample, bool use_size)
{
int counter;
int total, freq, letter;
int end = (use_size ? 1 : 0);
// Get the frequencies
total = 0;
for (counter = 1; counter < (GRID_SIZE - end); counter++)
{
Sample key = new Sample(sample);
key.Set(counter, (SAMPLE_X - 1));
total += GetUsageCount(key);
}
// Choose a 'target' frequency
if (total > 0)
{
letter = (randgen.NextInt() % total) + 1;
}
else
{
return -1; // no solution
}
// Move through the table until we hit the 'target' frequency
counter = 1;
freq = 0;
do
{
Sample key = new Sample(sample);
key.Set(counter, (SAMPLE_X - 1));
freq += GetUsageCount(key);
counter++;
} while (freq < letter);
return counter - 1;
}
void AddUsage(Sample key)
{
if (!usage.ContainsKey(key))
{
usage.Add(key, 0);
}
usage[key]++;
}
public int VectorDistance(Sample patch)
{
int dot = 0;
for (int i = 0; i < MAX_SIZE; i++)
{
int diff =
(this.values[i] - patch.values[i]);
dot += (diff * diff);
}
return (int)(Math.Sqrt(dot));
}