public void CopyFrom(ref Pattern pattern)
{
for (int i = 0; i < NUM_TRACKS; i++)
{
for (int j = 0; j < STEPS_PER_PATTERN; j++)
{
drumEvents[i * STEPS_PER_PATTERN + j].CopyFrom(ref pattern.drumEvents[i * STEPS_PER_PATTERN + j]);
}
}
}
// update tile data from the specified pattern
public void Update(Pattern pattern)
{
// TODO
const float tileSize = 1.0f / 16.0f;
int vertIndex = 0;
int texIndex = 0;
for (int row = 0; row < Pattern.NUM_TRACKS; row++)
{
for (int column = 0; column < Pattern.STEPS_PER_PATTERN; column ++)
{
float x = tileSize * column;
float y = tileSize * row;
vertices[vertIndex + 0] = x; // x0
vertices[vertIndex + 1] = y; // y0
vertices[vertIndex + 2] = 0.0f; // z0
vertices[vertIndex + 3] = x; // x1
vertices[vertIndex + 4] = y + tileSize; // y1
vertices[vertIndex + 5] = 0.0f; // z1
vertices[vertIndex + 6] = x + tileSize; // x2
vertices[vertIndex + 7] = y; // y2
vertices[vertIndex + 8] = 0.0f; // z2
vertices[vertIndex + 9] = x + tileSize; // x3
vertices[vertIndex + 10] = y + tileSize; // y3
vertices[vertIndex + 11] = 0.0f; // z3
vertIndex += 12;
// Set up texture coords (sprite) according to drumevent
DrumEvent drumEvent = pattern.drumEvents[row * Pattern.STEPS_PER_PATTERN + column];
x = 256.0f / 512;
y = 256.0f / 512;
float w = 48.0f / 512;
float h = 48.0f / 512;
if (drumEvent.vol > 20)
x = 352.0f / 512;
texcoords[texIndex] = x;
texcoords[texIndex + 1] = y;
texcoords[texIndex + 2] = x;
texcoords[texIndex + 3] = y + h;
texcoords[texIndex + 4] = x + w;
texcoords[texIndex + 5] = y;
texcoords[texIndex + 6] = x + w;
texcoords[texIndex + 7] = y + h;
texIndex += 8;
}
}
for (int i = 0; i < 16 * Pattern.STEPS_PER_PATTERN * Pattern.NUM_TRACKS; i++)
{
colours[i] = 1.0f;
}
}