clamp method

void clamp()

Implementation

void clamp() {
  if (r < 0.0) {
    r = 0.0;
  } else if (r > 1) {
    r = 1.0;
  }

  if (g < 0.0) {
    g = 0.0;
  } else if (g > 1) {
    g = 1.0;
  }

  if (b < 0.0) {
    b = 0.0;
  } else if (b > 1) {
    b = 1.0;
  }

  if (a < 0.0) {
    a = 0.0;
  } else if (a > 1) {
    a = 1.0;
  }
}