Bitmap/Bézier curves/Cubic: Difference between revisions
→{{header|Processing}}
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'''It can be run on line''' :<BR> [https://www.openprocessing.org/sketch/846556/ here.]
<lang>
float[] x = new float[4];
float[] y = new float[4];
boolean[] permitDrag = new boolean[4];
void setup() {
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noFill();
stroke(0, 0, 255);
bezier
// the bezier handles
strokeWeight(1);
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stroke(0);
fill(0);
for (int i = 0; i< 4; i++) {
if (i == 0 || i == 3) {
fill(255, 100, 10);
rectMode(CENTER);
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// permit dragging
for (int i = 0; i < 4; i++) {
if (permitDrag[i]) {
x[i] = mouseX;
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void mouseReleased () {
for (int i = 0; i < 4; i++) {
permitDrag[i] = false;
}
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void mousePressed () {
for (int i = 0; i < 4; i++) {
if (mouseX >= x[i]-5 && mouseX <= x[i]+10 && mouseY >= y[i]-5 && mouseY <= y[i]+10) {
permitDrag[i] = true;
}
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}
// hand curser when
void mouseMoved () {
cursor(ARROW);
for (int i = 0; i < 4; i++) {
if (mouseX >= x[i]-5 && mouseX <= x[i]+10 && mouseY >= y[i]-5 && mouseY <= y[i]+10) {
cursor(HAND);
}
}
}
=={{header|PureBasic}}==
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