/**
* Construct an FloatList from an iterable pile of objects. For instance, a float array, an array
* of strings, who knows). Un-parseable or null values will be set to NaN.
*
* @nowebref
*/
public FloatList(Iterable<Object> iter) {
this(10);
for (Object o : iter) {
if (o == null) {
append(Float.NaN);
} else if (o instanceof Number) {
append(((Number) o).floatValue());
} else {
append(PApplet.parseFloat(o.toString().trim()));
}
}
crop();
}
// --------------------------------------------------------
private void calculPositionAndAngle() {
PVector prev = new PVector(0, 0);
PVector next;
for (int i = 0; i < n; i++) {
next = new PVector();
// Position
if (i == 0) {
next = new PVector(0, 0);
} else {
next.x = prev.x + cos(random(angleMini - HALF_PI, angleMax - HALF_PI)) * distance;
next.y = prev.y + sin(random(angleMini - HALF_PI, angleMax - HALF_PI)) * distance;
// Angle
float a = atan2(prev.y - next.y, prev.x - next.x) - HALF_PI;
angle.append(a);
if (i == n - 1) lastAngle = a;
}
// Add position
position.add(next);
distance *= 1.01f;
prev.set(next);
}
}
/** Add this value, but only if it's not already in the list. */
public void appendUnique(float value) {
if (!hasValue(value)) {
append(value);
}
}
public void append(FloatList list) {
for (float v : list.values()) { // will concat the list...
append(v);
}
}
public void append(float[] values) {
for (float v : values) {
append(v);
}
}
/** Just an alias for append(), but matches pop() */
public void push(float value) {
append(value);
}
// --------------------------------------------------------
private void calculPositionAndAngle() {
PVector prev = new PVector(0, 0);
PVector next = new PVector(0, 0);
float lastAngle = 0, randomAngle, tempAmplitude;
// Position
for (int i = 0; i < n; i++) {
if (i == 0) {
position.add(next);
} else {
tempAmplitude = amplitude;
next = new PVector(0, 0);
do {
randomAngle = random(-tempAmplitude, tempAmplitude) + lastAngle;
next.x = prev.x + cos(randomAngle + beginAngle) * distance;
next.y = prev.y + sin(randomAngle + beginAngle) * distance;
tempAmplitude += radians(1);
} while (outside(next, border));
// Angle
float a = atan2(prev.y - next.y, prev.x - next.x);
lastAngle = randomAngle;
// Add position
position.add(next);
// Set prev to next
prev.set(next);
}
}
// Angle
for (int i = 0; i < n; i++) {
float a;
if (i == 0) {
// a = atan2(position.get(0).y-position.get(1).y,position.get(0).x-position.get(1).x);
angle.append(beginAngle - PI);
} else if (i == n - 1) {
a =
atan2(
position.get(n - 2).y - position.get(n - 1).y,
position.get(n - 2).x - position.get(n - 1).x);
angle.append(a);
} else {
a =
atan2(
position.get(i - 1).y - position.get(i + 1).y,
position.get(i - 1).x - position.get(i + 1).x);
angle.append(a);
}
}
}
