public Shape prune() {
Polygon result = new Polygon();
for (int i = 0; i < getPointCount(); i++) {
int next = i + 1 >= getPointCount() ? 0 : i + 1;
int prev = i - 1 < 0 ? getPointCount() - 1 : i - 1;
float dx1 = getPoint(i)[0] - getPoint(prev)[0];
float dy1 = getPoint(i)[1] - getPoint(prev)[1];
float dx2 = getPoint(next)[0] - getPoint(i)[0];
float dy2 = getPoint(next)[1] - getPoint(i)[1];
float len1 = MathUtils.sqrt((dx1 * dx1) + (dy1 * dy1));
float len2 = MathUtils.sqrt((dx2 * dx2) + (dy2 * dy2));
dx1 /= len1;
dy1 /= len1;
dx2 /= len2;
dy2 /= len2;
if ((dx1 != dx2) || (dy1 != dy2)) {
result.addPoint(getPoint(i)[0], getPoint(i)[1]);
}
}
return result;
}
protected final synchronized void checkPoints() {
if (pointsDirty) {
createPoints();
findCenter();
calculateRadius();
if (points == null) {
return;
}
synchronized (points) {
final int size = points.length;
if (size > 0) {
maxX = points[0];
maxY = points[1];
minX = points[0];
minY = points[1];
for (int i = 0; i < size / 2; i++) {
maxX = MathUtils.max(points[i * 2], maxX);
maxY = MathUtils.max(points[(i * 2) + 1], maxY);
minX = MathUtils.min(points[i * 2], minX);
minY = MathUtils.min(points[(i * 2) + 1], minY);
}
}
pointsDirty = false;
trianglesDirty = true;
}
}
}
private float[] getNormal(float[] start, float[] end) {
float dx = start[0] - end[0];
float dy = start[1] - end[1];
float len = MathUtils.sqrt((dx * dx) + (dy * dy));
dx /= len;
dy /= len;
return new float[] {-dy, dx};
}
protected void calculateRadius() {
boundingCircleRadius = 0;
for (int i = 0; i < points.length; i += 2) {
float temp =
((points[i] - center[0]) * (points[i] - center[0]))
+ ((points[i + 1] - center[1]) * (points[i + 1] - center[1]));
boundingCircleRadius = (boundingCircleRadius > temp) ? boundingCircleRadius : temp;
}
boundingCircleRadius = MathUtils.sqrt(boundingCircleRadius);
}
public float[] getNormal(int index) {
float[] current = getPoint(index);
float[] prev = getPoint(index - 1 < 0 ? getPointCount() - 1 : index - 1);
float[] next = getPoint(index + 1 >= getPointCount() ? 0 : index + 1);
float[] t1 = getNormal(prev, current);
float[] t2 = getNormal(current, next);
if ((index == 0) && (!closed())) {
return t2;
}
if ((index == getPointCount() - 1) && (!closed())) {
return t1;
}
float tx = (t1[0] + t2[0]) / 2;
float ty = (t1[1] + t2[1]) / 2;
float len = MathUtils.sqrt((tx * tx) + (ty * ty));
return new float[] {tx / len, ty / len};
}
public float length() {
return MathUtils.sqrt(x * x + y * y);
}
private final float[] arc(float t, float cx, float cy, float radius, float start, float end) {
float point = (end - start) * t + start;
return new float[] {(MathUtils.cos(point) * radius) + cx, (MathUtils.sin(point) * radius) + cy};
}
public static final Cycle getSample(
int type,
float srcWidth,
float srcHeight,
float width,
float height,
float offset,
int padding) {
Cycle cycle = new Cycle();
float s = 1;
if (srcWidth > srcHeight) {
s = MathUtils.max(srcWidth / width, srcHeight / height);
} else {
s = MathUtils.min(srcWidth / width, srcHeight / height);
}
final float scale = s;
switch (type) {
case 0:
cycle =
new Cycle() {
private static final long serialVersionUID = 1L;
private Path path;
public void step(
GLEx g,
float x,
float y,
float progress,
int index,
int frame,
GLColor color,
float alpha) {
float cx = this.padding + 50,
cy = this.padding + 50,
angle = (MathUtils.PI / 180) * (progress * 360),
innerRadius = index == 1 ? 10 : 25;
if (path == null) {
path = new Path(getX() + x * scale, getY() + y * scale);
} else {
path.clear();
path.set(getX() + x * scale, getY() + y * scale);
}
path.lineTo(
getX() + ((MathUtils.cos(angle) * innerRadius) + cx) * scale,
getY() + ((MathUtils.sin(angle) * innerRadius) + cy) * scale);
path.close();
g.draw(path);
}
};
cycle.setLineWidth(5);
cycle.setDelay(45);
cycle.setColor(0xFF2E82);
cycle.setStepType(4);
cycle.setStepsPerFrame(1);
cycle.setTrailLength(1);
cycle.setPointDistance(0.05f);
cycle.addPath(Cycle.ARC, 50, 50, 40, 0, 360);
break;
case 1:
cycle.setColor(0xFF7B24);
cycle.setStepsPerFrame(1);
cycle.setTrailLength(1);
cycle.setPointDistance(0.10f);
cycle.setMultiplier(2);
cycle.addPath(Cycle.ARC, 10 * scale, 10 * scale, 10 * scale, -270, -90);
cycle.addPath(
Cycle.BEZIER,
10 * scale,
0 * scale,
40 * scale,
20 * scale,
20 * scale,
0,
30 * scale,
20 * scale);
cycle.addPath(Cycle.ARC, 40 * scale, 10 * scale, 10 * scale, 90, -90);
cycle.addPath(
Cycle.BEZIER,
40 * scale,
0 * scale,
10 * scale,
20 * scale,
30 * scale,
0,
20 * scale,
20 * scale);
break;
case 2:
cycle.setColor(0xD4FF00);
cycle.setStepType(1);
cycle.setDelay(55);
cycle.setStepsPerFrame(2);
cycle.setTrailLength(0.3f);
cycle.setPointDistance(0.1f);
cycle.addPath(Cycle.LINE, 0, 0, 30 * scale, 0);
cycle.addPath(Cycle.LINE, 30 * scale, 0 * scale, 30 * scale, 30 * scale);
cycle.addPath(Cycle.LINE, 30 * scale, 30 * scale, 0, 30 * scale);
cycle.addPath(Cycle.LINE, 0, 30 * scale, 0, 0);
break;
case 3:
cycle =
new Cycle() {
private static final long serialVersionUID = 1L;
private Path path;
public void step(
GLEx g,
float x,
float y,
float progress,
int index,
int frame,
GLColor color,
float alpha) {
float cx = this.padding + 50,
cy = this.padding + 50,
angle = (MathUtils.PI / 180) * (progress * 360);
alpha = MathUtils.max(0.5f, alpha);
g.setAlpha(alpha);
if (path == null) {
path = new Path(getX() + x * scale, getY() + y * scale);
} else {
path.clear();
path.set(getX() + x * scale, getY() + y * scale);
}
path.lineTo(
getX() + ((MathUtils.cos(angle) * 35) + cx) * scale,
getY() + ((MathUtils.sin(angle) * 35) + cy) * scale);
path.close();
g.draw(path);
if (path == null) {
path =
new Path(
getX() + ((MathUtils.cos(-angle) * 32) + cx) * scale,
getY() + ((MathUtils.sin(-angle) * 32) + cy) * scale);
} else {
path.clear();
path.set(
getX() + ((MathUtils.cos(-angle) * 32) + cx) * scale,
getY() + ((MathUtils.sin(-angle) * 32) + cy) * scale);
}
path.lineTo(
getX() + ((MathUtils.cos(-angle) * 27) + cx) * scale,
getY() + ((MathUtils.sin(-angle) * 27) + cy) * scale);
path.close();
g.draw(path);
g.setAlpha(1);
}
};
cycle.setColor(0x05E2FF);
cycle.setLineWidth(2);
cycle.setStepType(4);
cycle.setStepsPerFrame(1);
cycle.setTrailLength(1);
cycle.setPointDistance(0.025f);
cycle.addPath(Cycle.ARC, 50, 50, 40, 0, 360);
break;
case 4:
cycle.setColor(0xFFA50000);
cycle.setStepsPerFrame(1);
cycle.setTrailLength(1);
cycle.setPointDistance(0.025f);
cycle.addPath(Cycle.ARC, 50 * scale, 50 * scale, 40 * scale, 0, 360);
break;
case 5:
cycle.setColor(0xFF2E82);
cycle.setDelay(60);
cycle.setStepType(1);
cycle.setStepsPerFrame(1);
cycle.setTrailLength(1);
cycle.setPointDistance(0.1f);
cycle.addPath(Cycle.LINE, 0, 20 * scale, 100 * scale, 20 * scale);
cycle.addPath(Cycle.LINE, 100 * scale, 20 * scale, 0, 20 * scale);
break;
case 6:
cycle.setStepsPerFrame(7);
cycle.setTrailLength(0.7f);
cycle.setPointDistance(0.01f);
cycle.setDelay(35);
cycle.setLineWidth(10);
cycle.addPath(Cycle.LINE, 20 * scale, 70 * scale, 50 * scale, 20 * scale);
cycle.addPath(Cycle.LINE, 50 * scale, 20 * scale, 80 * scale, 70 * scale);
cycle.addPath(Cycle.LINE, 80 * scale, 70 * scale, 20 * scale, 70 * scale);
break;
case 7:
cycle.setColor(0xD4FF00);
cycle.setStepsPerFrame(3);
cycle.setTrailLength(1);
cycle.setPointDistance(0.01f);
cycle.setLineWidth(6);
cycle.setPadding(0);
cycle.addPath(Cycle.ARC, 50 * scale, 50 * scale, 20 * scale, 360, 0);
break;
case 8:
cycle.setColor(0x05E2FF);
cycle.setStepsPerFrame(1);
cycle.setTrailLength(1);
cycle.setPointDistance(0.02f);
cycle.addPath(Cycle.ARC, 50 * scale, 50 * scale, 30 * scale, 0, 360);
break;
case 9:
cycle.setStepType(1);
cycle.setColor(GLColor.yellow);
cycle.addPath(Cycle.LINE, 10 * scale, 10 * scale, 90 * scale, 10 * scale);
cycle.addPath(Cycle.LINE, 90 * scale, 10 * scale, 90 * scale, 90 * scale);
cycle.addPath(Cycle.LINE, 90 * scale, 90 * scale, 10 * scale, 90 * scale);
cycle.addPath(Cycle.LINE, 10 * scale, 90 * scale, 10 * scale, 10 * scale);
break;
}
float size =
MathUtils.min(
srcWidth / (1 / cycle.getPointDistance()), srcHeight / (1 / cycle.getPointDistance()));
cycle.setPadding(padding);
cycle.setBlockWidth(size + offset);
cycle.setBlockHeight(size + offset);
cycle.setWidth(width * scale);
cycle.setHeight(height * scale);
return cycle;
}