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processing4/java/examples/OpenGL/Advanced/Wiggling/Wiggling.pde
benfry 40ecd562e3 moving the OpenGL examples to the core
2012-07-20 20:24:58 +00:00

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// Press 'w' to start wiggling, space to restore
// original positions.
PShape cube;
float cubeSize = 200;
float circleRad = 50;
int circleRes = 20;
float noiseMag = 1;
boolean wiggling = false;
void setup() {
size(400, 400, P3D);
createCube();
}
void draw() {
background(0);
translate(width/2, height/2);
rotateX(frameCount * 0.01f);
rotateY(frameCount * 0.01f);
shape(cube);
if (wiggling) {
PVector pos = null;
for (int i = 0; i < cube.getChildCount(); i++) {
PShape face = cube.getChild(i);
for (int j = 0; j < face.getVertexCount(); j++) {
pos = face.getVertex(j, pos);
pos.x += random(-noiseMag/2, +noiseMag/2);
pos.y += random(-noiseMag/2, +noiseMag/2);
pos.z += random(-noiseMag/2, +noiseMag/2);
face.setVertex(j, pos.x, pos.y, pos.z);
}
}
}
println(frameRate);
}
public void keyPressed() {
if (key == 'w') {
wiggling = !wiggling;
} else if (key == ' ') {
restoreCube();
} else if (key == '1') {
cube.strokeWeight(1);
} else if (key == '2') {
cube.strokeWeight(5);
} else if (key == '3') {
cube.strokeWeight(10);
}
}
void createCube() {
cube = createShape(GROUP);
PShape face;
// Front face
face = createShape(POLYGON);
face.stroke(255, 0, 0);
face.fill(255);
face.beginContour();
face.vertex(-cubeSize/2, -cubeSize/2, +cubeSize/2);
face.vertex(+cubeSize/2, -cubeSize/2, +cubeSize/2);
face.vertex(+cubeSize/2, +cubeSize/2, +cubeSize/2);
face.vertex(-cubeSize/2, +cubeSize/2, +cubeSize/2);
face.endContour();
face.beginContour();
for (int i = 0; i < circleRes; i++) {
float angle = TWO_PI * i / circleRes;
float x = circleRad * sin(angle);
float y = circleRad * cos(angle);
float z = +cubeSize/2;
face.vertex(x, y, z);
}
face.endContour();
face.end(CLOSE);
cube.addChild(face);
// Back face
face = createShape(POLYGON);
face.stroke(255, 0, 0);
face.fill(255);
face.beginContour();
face.vertex(+cubeSize/2, -cubeSize/2, -cubeSize/2);
face.vertex(-cubeSize/2, -cubeSize/2, -cubeSize/2);
face.vertex(-cubeSize/2, +cubeSize/2, -cubeSize/2);
face.vertex(+cubeSize/2, +cubeSize/2, -cubeSize/2);
face.endContour();
face.beginContour();
for (int i = 0; i < circleRes; i++) {
float angle = TWO_PI * i / circleRes;
float x = circleRad * sin(angle);
float y = circleRad * cos(angle);
float z = -cubeSize/2;
face.vertex(x, y, z);
}
face.endContour();
face.end(CLOSE);
cube.addChild(face);
// Right face
face = createShape(POLYGON);
face.stroke(255, 0, 0);
face.fill(255);
face.beginContour();
face.vertex(+cubeSize/2, -cubeSize/2, +cubeSize/2);
face.vertex(+cubeSize/2, -cubeSize/2, -cubeSize/2);
face.vertex(+cubeSize/2, +cubeSize/2, -cubeSize/2);
face.vertex(+cubeSize/2, +cubeSize/2, +cubeSize/2);
face.endContour();
face.beginContour();
for (int i = 0; i < circleRes; i++) {
float angle = TWO_PI * i / circleRes;
float x = +cubeSize/2;
float y = circleRad * sin(angle);
float z = circleRad * cos(angle);
face.vertex(x, y, z);
}
face.endContour();
face.end(CLOSE);
cube.addChild(face);
// Left face
face = createShape(POLYGON);
face.stroke(255, 0, 0);
face.fill(255);
face.beginContour();
face.vertex(-cubeSize/2, -cubeSize/2, -cubeSize/2);
face.vertex(-cubeSize/2, -cubeSize/2, +cubeSize/2);
face.vertex(-cubeSize/2, +cubeSize/2, +cubeSize/2);
face.vertex(-cubeSize/2, +cubeSize/2, -cubeSize/2);
face.endContour();
face.beginContour();
for (int i = 0; i < circleRes; i++) {
float angle = TWO_PI * i / circleRes;
float x = -cubeSize/2;
float y = circleRad * sin(angle);
float z = circleRad * cos(angle);
face.vertex(x, y, z);
}
face.endContour();
face.end(CLOSE);
cube.addChild(face);
// Top face
face = createShape(POLYGON);
face.stroke(255, 0, 0);
face.fill(255);
face.beginContour();
face.vertex(-cubeSize/2, +cubeSize/2, +cubeSize/2);
face.vertex(+cubeSize/2, +cubeSize/2, +cubeSize/2);
face.vertex(+cubeSize/2, +cubeSize/2, -cubeSize/2);
face.vertex(-cubeSize/2, +cubeSize/2, -cubeSize/2);
face.endContour();
face.beginContour();
for (int i = 0; i < circleRes; i++) {
float angle = TWO_PI * i / circleRes;
float x = circleRad * sin(angle);
float y = +cubeSize/2;
float z = circleRad * cos(angle);
face.vertex(x, y, z);
}
face.endContour();
face.end(CLOSE);
cube.addChild(face);
// Bottom face
face = createShape(POLYGON);
face.stroke(255, 0, 0);
face.fill(255);
face.beginContour();
face.vertex(+cubeSize/2, -cubeSize/2, +cubeSize/2);
face.vertex(-cubeSize/2, -cubeSize/2, +cubeSize/2);
face.vertex(-cubeSize/2, -cubeSize/2, -cubeSize/2);
face.vertex(+cubeSize/2, -cubeSize/2, -cubeSize/2);
face.endContour();
face.beginContour();
for (int i = 0; i < circleRes; i++) {
float angle = TWO_PI * i / circleRes;
float x = circleRad * sin(angle);
float y = -cubeSize/2;
float z = circleRad * cos(angle);
face.vertex(x, y, z);
}
face.endContour();
face.end(CLOSE);
cube.addChild(face);
}
void restoreCube() {
PShape face;
// Front face
face = cube.getChild(0);
face.setVertex(0, -cubeSize/2, -cubeSize/2, +cubeSize/2);
face.setVertex(1, +cubeSize/2, -cubeSize/2, +cubeSize/2);
face.setVertex(2, +cubeSize/2, +cubeSize/2, +cubeSize/2);
face.setVertex(3, -cubeSize/2, +cubeSize/2, +cubeSize/2);
for (int i = 0; i < circleRes; i++) {
float angle = TWO_PI * i / circleRes;
float x = circleRad * sin(angle);
float y = circleRad * cos(angle);
float z = +cubeSize/2;
face.setVertex(4 + i, x, y, z);
}
// Back face
face = cube.getChild(1);
face.setVertex(0, +cubeSize/2, -cubeSize/2, -cubeSize/2);
face.setVertex(1, -cubeSize/2, -cubeSize/2, -cubeSize/2);
face.setVertex(2, -cubeSize/2, +cubeSize/2, -cubeSize/2);
face.setVertex(3, +cubeSize/2, +cubeSize/2, -cubeSize/2);
for (int i = 0; i < circleRes; i++) {
float angle = TWO_PI * i / circleRes;
float x = circleRad * sin(angle);
float y = circleRad * cos(angle);
float z = -cubeSize/2;
face.setVertex(4 + i, x, y, z);
}
// Right face
face = cube.getChild(2);
face.setVertex(0, +cubeSize/2, -cubeSize/2, +cubeSize/2);
face.setVertex(1, +cubeSize/2, -cubeSize/2, -cubeSize/2);
face.setVertex(2, +cubeSize/2, +cubeSize/2, -cubeSize/2);
face.setVertex(3, +cubeSize/2, +cubeSize/2, +cubeSize/2);
for (int i = 0; i < circleRes; i++) {
float angle = TWO_PI * i / circleRes;
float x = +cubeSize/2;
float y = circleRad * sin(angle);
float z = circleRad * cos(angle);
face.setVertex(4 + i, x, y, z);
}
// Left face
face = cube.getChild(3);
face.setVertex(0, -cubeSize/2, -cubeSize/2, -cubeSize/2);
face.setVertex(1, -cubeSize/2, -cubeSize/2, +cubeSize/2);
face.setVertex(2, -cubeSize/2, +cubeSize/2, +cubeSize/2);
face.setVertex(3, -cubeSize/2, +cubeSize/2, -cubeSize/2);
for (int i = 0; i < circleRes; i++) {
float angle = TWO_PI * i / circleRes;
float x = -cubeSize/2;
float y = circleRad * sin(angle);
float z = circleRad * cos(angle);
face.setVertex(4 + i, x, y, z);
}
// Top face
face = cube.getChild(4);
face.setVertex(0, -cubeSize/2, +cubeSize/2, +cubeSize/2);
face.setVertex(1, +cubeSize/2, +cubeSize/2, +cubeSize/2);
face.setVertex(2, +cubeSize/2, +cubeSize/2, -cubeSize/2);
face.setVertex(3, -cubeSize/2, +cubeSize/2, -cubeSize/2);
for (int i = 0; i < circleRes; i++) {
float angle = TWO_PI * i / circleRes;
float x = circleRad * sin(angle);
float y = +cubeSize/2;
float z = circleRad * cos(angle);
face.setVertex(4 + i, x, y, z);
}
// Bottom face
face = cube.getChild(5);
face.setVertex(0, +cubeSize/2, -cubeSize/2, +cubeSize/2);
face.setVertex(1, -cubeSize/2, -cubeSize/2, +cubeSize/2);
face.setVertex(2, -cubeSize/2, -cubeSize/2, -cubeSize/2);
face.setVertex(3, +cubeSize/2, -cubeSize/2, -cubeSize/2);
for (int i = 0; i < circleRes; i++) {
float angle = TWO_PI * i / circleRes;
float x = circleRad * sin(angle);
float y = -cubeSize/2;
float z = circleRad * cos(angle);
face.setVertex(4 + i, x, y, z);
}
}
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