public final StickMan draw(
final double[] locations,
final Canvas canvas,
final Canvas ids,
final AtomicInteger idUnderMouse,
final OrbiterMouseHandler orbiter) {
final Graphics2D g = canvas.getGraphics();
final int bottom = canvas.getHeight() - 1;
{
g.setColor(Color.CYAN);
final int n = this.segments.length;
for (int i = 0; i < n; i += 2) {
final int v0 = this.offset + 3 * this.segments[i + 0];
final int v1 = this.offset + 3 * this.segments[i + 1];
g.drawLine(
iround(locations[v0 + 0]),
bottom - iround(locations[v0 + 1]),
iround(locations[v1 + 0]),
bottom - iround(locations[v1 + 1]));
}
}
{
g.setColor(Color.YELLOW);
final int n = this.muscles.length;
for (int i = 0; i < n; i += 2) {
final int v0 = this.offset + 3 * this.muscles[i + 0];
final int v1 = this.offset + 3 * this.muscles[i + 1];
g.drawLine(
iround(locations[v0 + 0]),
bottom - iround(locations[v0 + 1]),
iround(locations[v1 + 0]),
bottom - iround(locations[v1 + 1]));
}
}
for (int i = this.offset; i < this.nextOffset; i += 3) {
final int r = 3;
final int left = iround(locations[i + 0]) - r;
final int top = bottom - iround(locations[i + 1]) - r;
final int d = 2 * r;
final int id = i / 3;
g.setColor(id != idUnderMouse.get() ? RED : YELLOW);
g.fillOval(left, top, d, d);
ids.getGraphics().setColor(new Color(id + 1));
ids.getGraphics().fillOval(left, top, d, d);
}
return this;
}
public static final void drawAxes(final Canvas canvas, final OrbiterMouseHandler orbiter) {
final int bottom = canvas.getHeight() - 1;
final double s = 10.0;
final double[] axes = {0.0, 0.0, 0.0, s, 0.0, 0.0, 0.0, s, 0.0, 0.0, 0.0, s};
orbiter.transform(axes, 0.0, 0.0, 0.0);
final Graphics2D g = canvas.getGraphics();
g.setColor(RED);
g.drawLine(
(int) round(s + axes[0 + 0]),
bottom - (int) round(s + axes[0 + 1]),
(int) round(s + axes[3 + 0]),
bottom - (int) round(s + axes[3 + 1]));
g.setColor(GREEN);
g.drawLine(
(int) round(s + axes[0 + 0]),
bottom - (int) round(s + axes[0 + 1]),
(int) round(s + axes[6 + 0]),
bottom - (int) round(s + axes[6 + 1]));
g.setColor(BLUE);
g.drawLine(
(int) round(s + axes[0 + 0]),
bottom - (int) round(s + axes[0 + 1]),
(int) round(s + axes[9 + 0]),
bottom - (int) round(s + axes[9 + 1]));
}
public static final void drawGrid(final Canvas canvas, final OrbiterMouseHandler orbiter) {
final double s = 500.0;
final double minimumX = orbiter.getCenterX() - s;
final double maximumX = orbiter.getCenterX() + s;
final double minimumY = orbiter.getCenterY() - s;
final double maximumY = orbiter.getCenterY() + s;
final double z = 0.0;
final int stripes = 10;
final double amplitudeX = maximumX - minimumX;
final double amplitudeY = maximumY - minimumY;
final int n = 3 * 2 * (stripes + 1) * 2;
final double[] segments = new double[n];
for (int i = 0, j = 0; i <= stripes; ++i) {
segments[j++] = minimumX;
segments[j++] = minimumY + i * amplitudeY / stripes;
segments[j++] = z;
segments[j++] = maximumX;
segments[j++] = minimumY + i * amplitudeY / stripes;
segments[j++] = z;
segments[j++] = minimumX + i * amplitudeX / stripes;
segments[j++] = minimumY;
segments[j++] = z;
segments[j++] = minimumX + i * amplitudeY / stripes;
segments[j++] = maximumY;
segments[j++] = z;
}
orbiter.transform(segments);
final Graphics2D g = canvas.getGraphics();
final int bottom = canvas.getHeight() - 1;
g.setColor(Color.GRAY);
for (int i = 0; i < n; i += 6) {
g.drawLine(
iround(segments[i + 0]),
iround(bottom - segments[i + 1]),
iround(segments[i + 3]),
iround(bottom - segments[i + 4]));
}
}