I have just make an object move continuously and Now I want to make it stop in 10 seconds if the space bar is pressed?
Does anyone know how to implement this in processing? Thank you in advanced!
By default, Processing draws at 60 frames/second, so you can use that to your advantage.
//Global Variables
int countDownTimer = 600 //10 seconds * 60 FPS
boolean spacePressed = false;
void draw(){
if(spacePressed){
countDownTimer--;
if(countDownTimer == 0){
//Whatever happens after 10 seconds here
}
}
}
void keyPressed(){
if(key == " "){
spacePressed = true;
}
}
I am a first-year uni student learning Processing and I am having some trouble :(
I want to create the illusion of waves in my program (I am creating an interactive story) and I intend to do this by making a continuous gif.
So far I have loaded images of the wave at each point in the animation in an array of PImages and have created 'if' statements to show them in succession.
How do I make it so that after one image is shown it is hidden as the next one is shown? Currently they are simply layering over one another.
I will paste my code down below,
Thanks for the help!
PImage [] waves = new PImage[3];
void setup() {
size(750, 600);
background(#A3E9EA);
waves[0] = loadImage("wave1.png");
waves[1] = loadImage("wave2.png");
waves[2] = loadImage("wave3.png");
frameRate(5);
}
void draw() {
frameCount++;
println (frameCount);
if (frameCount < 5) {
image(waves[0], 0, 0);
} else {
image(waves[1], 0, 0);
}
if (frameCount < 15 & frameCount > 10) {
image(waves[2], 0, 0);
frameCount = 0;
}
}
I just want my computer's screen not to turn off while a program is runnig. I know I can set it on my PC settings but I just want this app to do it.
Can anybody help me?
Thanks!
I found the following code here
import java.awt.Robot;
import java.awt.MouseInfo;
long robotLastMove = 0;
Robot robot=null;
setup(){
try{
robot = new Robot();
}catch(Exception e){e.printStackTrace();}
}
draw(){
long now = System.currentTimeMillis();
if(robot!=null && now-robotLastMove>1000*60*15){
//TODO: move back the mouse
int x = MouseInfo.getPointerInfo().getLocation().x;
int y = MouseInfo.getPointerInfo().getLocation().y;
//robot.
robot.mouseMove(x+2, y+2);
robot.mouseMove(x, y);
robotLastMove=now;
}
}
This moves the mouse automatically when your PC tries to sleep, but only a little. If you save the code inside the draw function from the above code into a different function, you can call it in the the draw to make the code look better. Like this:
import java.awt.Robot;
import java.awt.MouseInfo;
long robotLastMove = 0;
Robot robot=null;
setup(){
try{
robot = new Robot();
}catch(Exception e){e.printStackTrace();}
}
void stayAwake(){
long now = System.currentTimeMillis();
if(robot!=null && now-robotLastMove>1000*60*15){
//TODO: move back the mouse
int x = MouseInfo.getPointerInfo().getLocation().x;
int y = MouseInfo.getPointerInfo().getLocation().y;
//robot.
robot.mouseMove(x+2, y+2);
robot.mouseMove(x, y);
robotLastMove=now;
}
}
void draw(){
background(0);
stayAwake();
// the code you want to run without your pc falling asleep.
}
Good luck!
I just made my image generator work with PNG files. For now, it's divided into 3 categories (backgrounds, objects & texts). These are now all combined, and with every mouse click it randomises these PNGs.
I made three toggles, where you could to choose to show either the background and the objects on top, all of them, or all separate. Whenever I run the sketch, it shows the "grey" background, but when I use the toggles, it doesn't show anything, or shows a flickering image, where the mouse-click can't be used to go to the next image. I can't seem to find the problem. Hopefully, you can help. :)
import controlP5.*;
boolean showBackground = false;
boolean showObjects = false;
boolean showGrids = false;
ControlP5 cp5;
PImage[] myImageArray = new PImage[8];
PImage[] myImageArray2 = new PImage[15];
PImage[] myImageArray3 = new PImage[15];
void setup() {
size(1436, 847);
background(211, 211, 211);
for (int i=0; i<myImageArray.length; i++) {
myImageArray[i] = loadImage ( "o" + i + ".png");
myImageArray2[i] = loadImage ( "g" + i + ".png");
myImageArray3[i] = loadImage( "b" + i + ".jpg");
cp5 = new ControlP5(this);
// create a toggle and change the default look to a (on/off) switch look
cp5.addToggle("showBackground")
.setPosition(40, 250)
.setSize(50, 20)
.setValue(true)
.setMode(ControlP5.SWITCH);
cp5.addToggle("showObjects")
.setPosition(40, 400)
.setSize(50, 20)
.setValue(true)
.setMode(ControlP5.SWITCH);
cp5.addToggle("showGrid")
.setPosition(40, 600)
.setSize(50, 20)
.setValue(true)
.setMode(ControlP5.SWITCH);
}
display();
}
void display() {
image(myImageArray3[(int)random(myImageArray.length)], 0, 0, 1436, 847); // b
image(myImageArray2[(int)random(myImageArray.length)], 0, 0, 1436, 847); // g
image(myImageArray[(int)random(myImageArray.length)], 0, 0, 1436, 847); // o
}
void mousePressed() {
display();
}
void draw() {
pushMatrix();
if (showBackground==false) {
image(myImageArray3[(int)random(myImageArray.length)], 0, 0, 1436, 847); // b
} else {
background(211, 211, 211);
}
if (showGrids==false) {
image(myImageArray2[(int)random(myImageArray.length)], 0, 0, 1436, 847); // g
} else {
background(211, 211, 211);
}
if (showObjects==false) {
image(myImageArray[(int)random(myImageArray.length)], 0, 0, 1436, 847); // o
} else {
background(211, 211, 211);
}
popMatrix();
}
Here are a couple of things where the logic your wrote in your code might not match what you had in mind:
When you call display() on mouse it renders those 3 images once (also it will be different images within those since it's using a randomised index). Similarly in draw(), when an does get picked to be rendered, frames will be flickering fast as a random index is generated multiple times per second(each frame). You may want to randomise indices in a different event (e.g. mouse or key press) and store this value in a variable you can re-use.
the conditions you use in draw(): you probably meant to check if the values are true(toggled enabled/turned on in controlP5) ? (e.g. e.g. if (showBackground==true) and initialise the toggles with false, instead of true?)
a big one: in draw() , after each condition(showBackground,showGrids,showObjects), if it's false, you're clearing the the whole frame (so a previous image would be erased)
you have 3 arrays, but you use the size of the first(myImageArray.length) only, which means, even though you may have more images for myImageArray2 and myImageArray3, you're not loading, nor displaying them.
The third grid is labeled "showGrid" when it should be "showGrids": if you aren't consistent with the toggle labels and variable names, toggles won't update the variable names.
you should use more descriptive names for the arrays: it will make it easier to scan/follow your code on the long run.
there's no need to add toggles multiple times in the for loop where you load images: once will do.
Here's what I mean:
import controlP5.*;
boolean showBackground = false;
boolean showObjects = false;
boolean showGrids = false;
ControlP5 cp5;
PImage[] objects = new PImage[8];
PImage[] grids = new PImage[15];
PImage[] backgrounds = new PImage[15];
int currentImage = 0;
void setup() {
size(1436, 847);
//load objects
for (int i=0; i<objects.length; i++) {
objects[i] = loadImage ( "o" + i + ".png");
}
//load grids
for(int i = 0 ; i < grids.length; i++){
grids[i] = loadImage ( "g" + i + ".png");
}
//load backgrounds
for(int i = 0 ; i < grids.length; i++){
backgrounds[i] = loadImage( "b" + i + ".jpg");
}
//setup UI
cp5 = new ControlP5(this);
// create a toggle and change the default look to a (on/off) switch look
cp5.addToggle("showBackground")
.setPosition(40, 250)
.setSize(50, 20)
.setValue(false)
.setMode(ControlP5.SWITCH);
cp5.addToggle("showObjects")
.setPosition(40, 400)
.setSize(50, 20)
.setValue(false)
.setMode(ControlP5.SWITCH);
cp5.addToggle("showGrids")
.setPosition(40, 600)
.setSize(50, 20)
.setValue(false)
.setMode(ControlP5.SWITCH);
}
void mousePressed() {
//go to next image index
currentImage = currentImage + 1;
//check if the incremented index is still valid, otherwise, reset it to 0 (so it doesn't go out of bounds)
if (currentImage >= objects.length) {
currentImage = 0;
}
}
void draw() {
//clear current frame
background(211);//for gray scale value you can just use one value: the brightness level :)
if (showBackground==true) {
image(backgrounds[currentImage], 0, 0, 1436, 847); // b
}
if (showGrids==true) {
image(grids[currentImage], 0, 0, 1436, 847); // g
}
if (showObjects==true) {
image(objects[currentImage], 0, 0, 1436, 847); // o
}
}
Note that currently the same index is used for all 3 arrays.
You may want to add a separate index variable for each array (e.g. currentObjectIndex, currentBackgroundIndex, currentGridIndex) that you can increment independently of each other.
I recommend having a bit more patience and double checking your code first.
Visualise what each line of code will do, then check if it actually does what you expect it to do. Either you will learn something new or improve your logic.
Also, if mentally joggling 3 arrays is tricky (and it can be), go one step back: try your logic with one array only until you get the hang of it, then move on.
A step backwards is sometimes a step forward when you're going in the wrong direction.
As creative as you'd like to be with Processing, bare in mind, the interface to plugging your ideas to it is still a series of one instruction at a time, each precisely tuned to do exactly what you want it to do. There's room for fun, but unfortunately you need to get past the boring parts first
How can I move/animate/translate/tween an Image from position A to position B using C# code in Unity 4.6?
Assuming Image is a GameObject, so it could be a Button or whatever.
There has to be a one-liner for this, right? I've been googling for a while but all I can see out-of-the-box is stuff done in Update, and I firmly believe doing stuff in Update is not a fast way of scripting things.
maZZZu's method will work, however, if you do NOT want to use the Update function, you can use an IEnumerator/Coroutine like so…
//Target object that we want to move to
public Transform target;
//Time you want it to take before it reaches the object
public float moveDuration = 1.0f;
void Start ()
{
//Start a coroutine (needed to call a method that returns an IEnumerator
StartCoroutine (Tween (target.position));
}
//IEnumerator return method that takes in the targets position
IEnumerator Tween (Vector3 targetPosition)
{
//Obtain the previous position (original position) of the gameobject this script is attached to
Vector3 previousPosition = gameObject.transform.position;
//Create a time variable
float time = 0.0f;
do
{
//Add the deltaTime to the time variable
time += Time.deltaTime;
//Lerp the gameobject's position that this script is attached to. Lerp takes in the original position, target position and the time to execute it in
gameObject.transform.position = Vector3.Lerp (previousPosition, targetPosition, time / moveDuration);
yield return 0;
//Do the Lerp function while to time is less than the move duration.
} while (time < moveDuration);
}
This script will need to be attached to the GameObject that you would like to move. You will then need to create another GameObject in the scene that will be your Target…
The code is commented but if you need clarification on something just post a comment here.
If you want to do the movement yourself you can use something like this:
public Vector3 targetPosition = new Vector3(100, 0, 0);
public float speed = 10.0f;
public float threshold = 0.5f;
void Update () {
Vector3 direction = targetPosition - transform.position;
if(direction.magnitude > threshold){
direction.Normalize();
transform.position = transform.position + direction * speed * Time.deltaTime;
}else{
// Without this game object jumps around target and never settles
transform.position = targetPosition;
}
}
Or you can download for example DOTween package and just start the tween:
public Vector3 targetPosition = new Vector3(100, 0, 0);
public float tweenTime = 10.0f;
void Start () {
DOTween.Init(false, false, LogBehaviour.Default);
transform.DOMove(targetPosition, tweenTime);
}