I personally don't know how much help I can get in this situation. I was trying to make a Flappy bird sketch off of Daniel Shiffman's videos using the p5.js web editor, however when the keyPressed() function was used (which I am familiar with because I did a bunch with Processing), I would get no response. Now originally, it was if(key === ' ') { that was being used, and when the space bar was pressed, the sketch would reset. However, when I tried with other letters, then eventually to just the keyPressed example from the reference, it still wouldn't do anything. It even worked on the website's example, however it wouldn't work in the web editor. What is happening?
Example code:
let value = 0;
function draw() {
fill(value);
rect(25, 25, 50, 50);
}
function keyPressed() {
if (value === 0) {
value = 255;
} else {
value = 0;
}
}
Try this:
//in the draw function
if (keyIsDown(LEFT_ARROW /*or what ever*/)) {
//action
}
Related
I am using Processing to create a basketball game. I have managed to create the basketball game but I want to have a click to start home screen. I have made the graphic for the home screen but I am not sure how to integrate it into the game code. Any ideas on how to go about this. Thanks!
I found something on the internet related to this which was...
if (started) {
//all the code for the game
} else {
// all the code for the start screen
if (keyDown("enter")) {
started = true;
}
}
Im not sure if this is leading me in the right direction or how I could necessarily use this.
Use keyPressed() outside the draw().
void keyPressed() {
println(int(key));
if (key==10) {
println("ENTER");
}
}
key - contains the value of the most recent key on the keyboard that was used (either pressed or released).
What is described in: https://processing.org/reference/keyPressed_.html
Here is a little demo program that may help you. The global variable started controls whether the game has begun or not. The function keyPressed sets it to true if you press the ENTER key.
In draw, put your game code in the first if-part and your waiting screen in the second.
boolean started = false;
void draw() {
background(0);
textAlign(CENTER);
if (started) {
// your game code here
text("gameplay", 50, 50);
} else {
// your start/launch screen here
text("waiting...", 50, 50);
}
}
void keyPressed() {
if (keyCode == ENTER) {
started = true;
}
}
I am trying to make a calculator in processing. My thought process for how this is going to work is to make a function for if a certain number is pressed on the keyboard. So I would create some sort of for loop or array even that would sense when a number is pressed, and then return true if it goes through the if statements, however, in order for this to work, I would need to put a variable in the place of a specific key on the keyboard. Is this possible?
Code (so far):
void setup() {
size(800,600);
}
void draw() {
background(0);
Nums.create();
}
class Nums {
void create() {
for (int i = 0; i < 9; i++) {
zero(i);
}
}
boolean zero(int amnt) {
if (keyPressed) {
if (key == amnt) {
return true;
} else {
return false;
}
}
}
}
They keyPressed variable and the functions like keyPressed() and keyReleased() are specifically for keyboard input. They don't, and shouldn't, be concerned with on-screen buttons that you click with the mouse.
Instead, you should probably use the mousePressed() function to detect when the mouse is clicked, and then use if statements to figure out which button was clicked. You can use point-rectangle collision detection to detect which button was clicked. There's also a button sketch in the examples that come with the Processing editor.
Bear with me, I'm pretty new to unity.
As the title suggests, the game engine freezes when this script is attached to the main camera.
public class leftright : MonoBehaviour {
public float boundaries = 3f;
void Update () {
while (Input.GetAxis("Mouse X") < boundaries && Input.GetAxis ("Mouse X") > -boundaries) {
this.transform.Rotate(0, Input.GetAxis("Mouse X"), 0);
}
}
}
I don't think this script makes an infinite loop, and I can't detect any problem with it.
the log text is here, and the project is here
While(true) {
//do stuff
}
The conditional you're using in your while statement cannot (and will not) ever change from true to false based on the contents of the loop, therefor it will run forever.
Update() is already a loop, treat it like one.
void Update () {
if(Input.GetAxis("Mouse X") < boundaries && Input.GetAxis ("Mouse X") > -boundaries) {
this.transform.Rotate(0, Input.GetAxis("Mouse X"), 0);
}
}
I'm constructing a custom node editor window in Unity, and I've had a look at various resources such as this one, which uses GUI.Box to construct node windows.
This works great, and I'm able to drag these windows around the way I want, however once I add controls to the GUI.Box, I want them to override the Drag() function I've written.
Here's an example of the issue - When I move the vertical slider up, the entire box drags with it.
Is there a way to fix this behavior using GUI.Box, or should I go back to GUI.Window with its built-in GUI.DragWindow()?
Here's a simplified version of the code I'm using:
EditorMouseInput.cs:
private bool ActionLeftMouseDown()
{
mouseDownNode = editor.GetSelectedNode(Input.current.mousePosition);
if (mouseDownNode == null)
editor.StartMovingEditorCanvas();
else
mouseDownNode.IsSelected = true;
}
BaseNodeEditor.cs:
public BaseNode GetSelectedNode(Vector2 mousePos)
{
foreach (BaseNode node in Nodes)
{
if (node.WindowRect.Contains(mousePos))
return node;
}
return null;
}
public void Drag(Vector2 delta)
{
if (!MoveEditorMode && !ConnectionMode)
{
foreach (BaseNode node in Nodes)
{
node.Drag(delta);
}
}
BaseNode.cs:
public void Drag(Vector2 delta)
{
if (IsSelected)
draggedDistance += delta;
}
The vertical slider is added in the derived JumpNode class. Extract of the helper class that constructs the slider:
Vector2 pos = node.WindowRect.position + rect.position * GridSpacing;
value = GUI.VerticalSlider(new Rect(pos, rect.size * GridSpacing), value, maxValue, minValue);
I can see why this doesn't do what I want, but I don't know how to go about it given the GUI controls aren't part of the GUI.Box.
Any help or suggestions, even a nudge towards another source would be greatly appreciated - I feel I've used all the search terms that exist in my head!
Edit - Solved: Thanks to Kleber for solving this one for me. In case anyone else runs into this or a similar issue, the solution for me was in realising that GUI controls consume left mousedown events automatically, so clicking a slider means there's no propagation to the Box to check if it was clicked.
What I needed to do was separate the IsSelected and IsDragged flags in the Node class, and clear IsDragged on mouseUp. I originally used IsSelected to flag both drag enabled, and selected (multiple nodes could be selected and dragged at once).
It's quite a complex tutorial so I didn't read it entirely, but the problem seems to be the MouseDrag detection. Well, basically you want to stop the event propagation when you click on a GUI element inside the Box, right? To do so, you call:
Event.current.Use()
every time the user drags the mouse on one of your components.
Using the resource you've mentioned, I altered the Node class and added a slider inside the Draw() method, ending like this:
public void Draw() {
inPoint.Draw();
outPoint.Draw();
GUI.Box(rect, title, style);
GUI.BeginGroup(rect);
_value = GUI.HorizontalSlider(new Rect(20, 0, 50, 20), _value, 100, -100);
GUI.EndGroup();
}
Another thing you can do is change how you draw your window. Here it's a simple example that I've tested on the latest Unity version (5.6):
private void OnGUI() {
GUI.Box(_rect, string.Empty);
GUI.BeginGroup(_rect);
_value = GUI.VerticalSlider(new Rect(145, 100, 20, 100), _value, 100, -100);
GUI.EndGroup();
var e = Event.current;
if (e.type == EventType.MouseDrag && _rect.Contains(e.mousePosition)) {
_rect.x += e.delta.x;
_rect.y += e.delta.y;
Repaint();
}
}
As you can see, this example doesn't need an Event.current.Use() to work properly.
I want to get user input through GUI Button in unity3d unityscript. I have write this script to get user input through keyboard
var f_hor : float = Input.GetAxis("Horizontal");
//Get Vertical move - move forward or backward
var f_ver : float = Input.GetAxis("Vertical");
if (f_ver < 0) {
b_isBackward = true;
} else {
b_isBackward = false;
}
its work fine and its give me 0 and 1 accordingly..But i want the same action through GUI button.Like if i have four GUI button..and they work same as this did...I can make GUI button in ONGUI function..But how can i achieve this functionaility...Any help
Altough I don't know if it is the best way to go (Unity's gui element are not the best for ingame HUD or menu), this should do the job:
private bool buttonPressed = false;
public void Update()
{
if (buttonPressed)
{
//do what you want
buttonPressed = false;
}
}
Sorry for using C# code, but I don't know JS. It should be easy to translate tough.
public void OnGui()
{
Rect rect = new Rect(...); //your button dimension
if (GUI.Button(rect, "AButton")
{
buttonPressed = true;
}
}
EDIT:
If you want to manually handle input from mouse you can use methods of MonoBehavior such as OnMouseDown or OnMouseUp.
Alternatively you can check from inside Update if a mouse event occured, have a look at Input.GetMouseButton or similar methods of Input class.