Like a play list with play,pause, next and back button I achieved it using if else in C# but like to use counter can some give me better idea.
public void nextSq()
{
if (CPU_Model.GetCurrentAnimatorStateInfo(0).IsName("Parent_1"))
{
CPU_Model.Play("Parent_2", -1, 0f);
CPU_Model.speed = 0.25f;
}
else if (CPU_Model.GetCurrentAnimatorStateInfo(0).IsName("Parent_2"))
{
CPU_Model.Play("Parent_3", -1, 0f);
CPU_Model.speed = 0.25f;
}
else if (CPU_Model.GetCurrentAnimatorStateInfo(0).IsName("Parent_3"))
{
CPU_Model.Play("Parent_4", -1, 0f);
CPU_Model.speed = 0.25f;
}
}
Use the Animation view, the playable graphs technology, or DOTween to sequence animations.
Related
Okay so I'm making a photography game where when you 'take a photo', Unity sends a few raycasts forward to check if certain tagged items are in the photo (all within the cameras FOV). My problem is, this seems to work intermittently! Sometimes it finds the tagged objects, other times it will be right in front of the view yet it will miss it completely! Can anyone advise about what I'm doing wrong?
public static Transform target;
public static GameObject[] targetName;
public static float length = 250f;
public static Transform thisObject;
// Start is called before the first frame update
void Start()
{
thisObject = GameObject.Find("Main Camera").GetComponent<Transform>();
//target = GameObject.FindGameObjectWithTag("Trees").transform;
}
// Update is called once per frame
void Update()
{
//InFront();
//HasLineOfSight("Trees");
}
public static bool InFront(Transform target1)
{
Vector3 directionToTarget = thisObject.position - target1.position;
float angleOnXAxis = Vector3.Angle(thisObject.right, directionToTarget);
float angleOnYAxis = Vector3.Angle(thisObject.up, directionToTarget);
//Debug.Log(angleOnYAxis);
if (Mathf.Abs(angleOnXAxis) < 130 && Mathf.Abs(angleOnXAxis) > 50
&& Mathf.Abs(angleOnYAxis) < 115 && Mathf.Abs(angleOnYAxis) > 62)
{
//Debug.DrawLine(transform.position, target.position, Color.green);
return true;
}
return false;
}
public static bool HasLineOfSight(string objectTag)
{
RaycastHit hit;
Vector3 direction = target.position - thisObject.position;
//Debug.Log(direction);
if (Physics.Raycast(thisObject.position, direction, out hit, length))
{
if (hit.transform.tag == objectTag)
{
Debug.DrawRay(thisObject.position, direction * 0.96f, Color.red);
return true;
}
else
{
return false;
}
}
else
{
return false;
}
}
public static GameObject SortObjects(string objectTag)
{
targetName = GameObject.FindGameObjectsWithTag(objectTag);
GameObject closestObject = null;
for (int i = 0; i < targetName.Length; i++)
{
if (Vector3.Distance(thisObject.position,
targetName[i].transform.position) <= length)
{
if (InFront(targetName[i].transform))
{
if (closestObject == null)
{
closestObject = targetName[i];
}
else
{
if (Vector3.Distance(targetName[i].transform.position, thisObject.position) <= Vector3.Distance(closestObject.transform.position, thisObject.position))
{
closestObject = targetName[i];
}
}
}
}
}
return closestObject;
}
public static bool ObjectCheck(string objectTag)
{
//Debug.Log(SortObjects(objectTag));
if (SortObjects(objectTag) != null)
{
target = SortObjects(objectTag).transform;
//Debug.Log(target);
if (InFront(target) && HasLineOfSight(objectTag))
{
return true;
}
else
{
return false;
}
}
else
{
return false;
}
}
I'm essentially calling ObjectCheck() with the tag I want to check for to get the closest, visible, object with that tag. What is wrong with this code??
In your script, only the closest object to the main camera gets checked. SortObjects() determines the closest tagged object, and then you only handle that single object in ObjectCheck(). - That object might be obstructed by something else, so the method returns false. And other tagged objects that are actually visible, are not picked up this way...
So, you could rename and change your SortObjects() function to check for both conditions right in the loop (InFront(target) && HasLineOfSight(objectTag)), and filter the objects out right in there, since only those objects are of interest.
Also, your HasLineOfSight() method checks the tag of the hit object, but what you probably wanted to do, is to check if the raycast actually hits that exact object. So it should instead compare the hit's gameObject to the target's gameObject, ignoring the tag, since a correct tag alone isn't enough. (Side note: it would make sense to place all "photographable objects" on a "photo layer", and set the layer mask in the Physics.Raycast() call accordingly, it's more efficient that way in larger scenes.)
The way the angles are calculated in the InFront() method is probably causing issues, because the direction vector to the target is really in 3D. To calculate the angles, you could try to use Vector3.Project() or Vector3.ProjectOnPlane(), but that will also be problematic, because of perspective camera issues.
This check is strongly related to the topic of "frustum culling", a technique usually used for rendering. But it's similar to what you need, to filter out all the (possibly) visible objects in the camera's field of view (frustum culling doesn't handle obstruction, it is just a geometric check to see if a point lies within the camera's frustum space). See:
https://en.wikipedia.org/wiki/Viewing_frustum
https://en.wikipedia.org/wiki/Hidden-surface_determination#Viewing-
http://www.lighthouse3d.com/tutorials/view-frustum-culling/
https://docs.unity3d.com/Manual/UnderstandingFrustum.html
If you want to dig deeper and optimize this, there are a couple of ways this can be done. But luckily, Unity comes with many useful related functions already built into the Camera class. So instead, you could use Camera.WorldToScreenPoint() (or Camera.WorldToViewportPoint()), and compare the resulting screen coordinates to the screen size or viewport, like discussed in Unity forum. (The frustum math is hidden behind these compact functions, but beware that this is probably not the optimal way to do this.)
Instead of calling FindGameObjectsWithTag() every time, you could do it only once in Start(), assuming objects do not get created/destroyed while the game is running.
I've tried to modify your script, since I'm also learning Unity again... The script can be dragged to the main camera, and it should show the "focus object" in the Scene view with the green debug line. I hope this helps:
using UnityEngine;
[RequireComponent(typeof(Camera))]
public class PhotoCast : MonoBehaviour
{
public float maxDistance = 250.0f;
public string objectTag = "photo";
protected GameObject[] objs;
protected GameObject objFocus;
protected Camera cam;
public void Start() {
objs = GameObject.FindGameObjectsWithTag(objectTag);
cam = GetComponent<Camera>();
}
public void Update() {
if (Input.GetButtonDown("Fire1")) {
objFocus = CheckObjects();
if (objFocus) {
Debug.Log("closest object in view: " + objFocus.name);
/* TODO: take actual photo here */
}
}
if (objFocus) {
Debug.DrawLine(transform.position,
objFocus.transform.position, Color.green);
}
}
GameObject CheckObjects() {
GameObject obj_closest = null;
float dist_closest = float.MaxValue;
foreach (GameObject o in objs) {
float dist = Vector3.Distance(
o.transform.position, transform.position);
if (dist < maxDistance && dist < dist_closest
&& InViewport(o.transform.position)
&& HasLineOfSight(o.transform)) {
dist_closest = dist;
obj_closest = o;
}
}
return obj_closest;
}
bool InViewport(Vector3 worldPos) {
Vector3 p = cam.WorldToViewportPoint(worldPos);
return (p.x > 0.0f && p.x <= 1.0f && p.y > 0.0f && p.y <= 1.0f
&& p.z > cam.nearClipPlane);
}
bool HasLineOfSight(Transform target) {
RaycastHit hit;
Vector3 dir = target.position - transform.position;
if (Physics.Raycast(transform.position, dir, out hit, maxDistance)) {
if (hit.collider.gameObject == target.gameObject) {
return true;
}
}
return false;
}
}
Side notes:
Another issue with this technique is, that there can be tagged objects right in front of the camera, but other tagged objects that are closer on the side will be picked up instead of the obvious one. Many small issues to fine-tune until the scripts fits the game, I guess. Instead of only using one Raycast per object, you could use multiple ones, and take the bounding box or the actual collider shape into account.
An improved version of the script could make use of the Physics.Overlap*() or Physics.*Cast*() functions, documented here.
I am trying to get my animation to cycle through two images when a directional key is pressed. Currently it switches images on each key press. I have been looking at tutorials and understand that I need some kind of timer to measure each frame time but everything I have tried to implement in to my code so far has failed so I am just posting my code that works at the moment.
Could anyone explain to me how to go about implementing this please?
void Frog::up(sf::Event event)
{
sf::IntRect frogUpAnimation[iNumFrames];
frogUpAnimation[0] = sf::IntRect(13, 362, 21, 23);
frogUpAnimation[1] = sf::IntRect(46, 367, 21, 23);
if (event.type == sf::Event::KeyPressed && event.key.code == sf::Keyboard::Up)
{
audio.frogjumpsound();
frogSprite.move(0.0f, -55.0f);
iScoreCounter = iScoreCounter + 10;
iCurrentFrame++;
if (iCurrentFrame >= iNumFrames) iCurrentFrame = 0;
frogSprite.setTextureRect(frogUpAnimation[iCurrentFrame]);
}
}
int main()
{
sf::RenderWindow window(sf::VideoMode(800, 800), "Frogger");
window.setFramerateLimit(60);
sf::Clock timer;
float fFrameTime = 1.0f / 60.0f;
float fElapsedTime;
sf::Event event;
Game game;
Frog frog;
Timer countdown;
Text text;
Audio gameaudio;
gameaudio.music();
while (window.isOpen())
{
while (window.pollEvent(event))
{
if (event.type == sf::Event::Closed)
{
window.close();
}
if (event.type == sf::Event::KeyPressed)
{
game.processKeyPress(event.key.code);
}
frog.up(event);
frog.down(event);
frog.left(event);
frog.right(event);
} // Event loop
countdown.gametime();
fElapsedTime = timer.getElapsedTime().asSeconds();
if (fElapsedTime > fFrameTime)
{
timer.restart();
}
//Update
game.checkPads(&frog);
game.checkWin();
game.gameOver();
frog.scorecounter(&countdown);
frog.update(fElapsedTime);
game.update(fElapsedTime);
text.update(fElapsedTime);
countdown.update(fElapsedTime);
game.collision(&frog);
// Drawing
window.clear();
window.draw(game);
window.draw(frog);
window.draw(countdown);
window.draw(text);
window.display();
} // main loop
}
First, I would only call 'frog.up()', 'frog.left()', etc. when the proper key is pressed. Otherwise, you're calling potentially 4 functions each iteration which do absolutely nothing.
if(sf::Keyboard::isKeyPressed(sf::Keyboard::Right) {
frog.right();
}
else if(sf::Keyboard::isKeyPressed(sf::Keyboard::Left) {
frog.left();
}
As for your timer issues, your fElapsedTime and fFrameTime look a little funky. Take a look at https://en.sfml-dev.org/forums/index.php?topic=10913.0 but I really recommend this guide: https://github.com/SFML/SFML/wiki/Source:-AnimatedSprite
Hey guys I am in the process of building this simple billiard game, and I want the black ball, labeled bBall, to go the same distance as the white ball, labeled wBall, and no farther. ie, if the white ball travels 20 pixels before it hits the black ball, I want the black ball to travel 20 pixels and then stop. How might I go about accomplishing this? Thanks for the help guys.
processing 2.0.3
ball wBall, bBall;
int click;
String msg;
Boolean moving = false;
float difx, dify;
float cdistance;
int steps = 40;
void setup(){
click=0;
size(800,400);
background(16,77,27);
wBall = new ball(35,#ffffff);
bBall = new ball(35,#000000);
msg="";
}
void mouseClicked(){
if(!moving){
click++;
}
}
void draw(){
background(16,77,27);
String msg;
fill(0,0,0);
ellipse(15,15,30,30);
ellipse(785,15,30,30);
ellipse(15,385,30,30);
ellipse(785,385,30,30);
ellipse(410,15,30,30);
ellipse(410,385,30,30);
msg="the count is "+click;
println("the count is "+click);
//Moving Balls\\
fill(255,255,255);
noStroke();
if(click==0){
wBall.xpos=mouseX;
wBall.ypos=mouseY;
}else if(click==1){
bBall.xpos=mouseX;
bBall.ypos=mouseY;
}else if(click==2){
difx = wBall.xpos-bBall.xpos;
dify = wBall.ypos-bBall.ypos;
}
else if(click==3){
cdistance = dist(wBall.xpos,wBall.ypos,bBall.xpos,bBall.ypos);
if (cdistance>bBall.ballDiam/2){
moving = true;
wBall.xpos-=difx/steps;
wBall.ypos-=dify/steps;
}
else{
moving = false;
click=4;
println("click"+click);
}
}else if(click==4){
if(cdistance<bBall.ballDiam){
moving = true;
bBall.xpos-=difx/steps;
bBall.ypos-=dify/steps;
}
}
wBall.update();
bBall.update();
}
class ball{
float xpos, ypos;
color myColor;
int ballDiam;
boolean visible = true;
ball(int tempdiam, color tempColor){
myColor=tempColor;
ballDiam=tempdiam;
}
void update(){
if(visible){
fill(myColor);
ellipse(xpos,ypos,ballDiam,ballDiam);
}
}
}
void keyPressed(){
if (key =='c'){
setup();
}
}
One way would be to make your
else if (click==4) {
if (cdistance<bBall.ballDiam) {
moving = true;
bBall.xpos-=difx/steps;
bBall.ypos-=dify/steps;
}
}
to
else if (click==4) {
if (cdistance<bBall.ballDiam) {
if (dist(wBall.xpos, wBall.ypos, bBall.xpos, bBall.ypos) < sqrt(sq(difx)+sq(dify))) {
moving = true;
bBall.xpos-=difx/steps;
bBall.ypos-=dify/steps;
}
}
}
essentially only moving the ball as long as its distance from the white one is less than the original difference...
Despite this though I feel you are approaching this the hard way. Maybe take a look to introduce speed and acceleration (and maybe even friction) calculations to your game and things will make more sense...
I want to make a TextView appear little by little, like animation. The problem is, the animation is not smooth. It gets stuck for a little while sometimes and then resumes. Sometimes even worse, it goes back... I mean, the TextView gets bigger and bigger but suddenly gets smaller then bigger again. Could anyone help me?
private class UnfoldTask extends AsyncTask<Integer, Integer, Integer> {
View view;
public UnfoldTask(View v) {
this.view = v;
ViewGroup.LayoutParams pa = view.getLayoutParams();
pa.height = 0;
view.setLayoutParams(pa);
}
#Override
protected Integer doInBackground(Integer... maxHeight) {
ViewGroup.LayoutParams pa = view.getLayoutParams();
while (pa.height < maxHeight[0]) {
pa.height += (int) (24 * getResources().getDisplayMetrics().density + 0.5f);
sleep(100);
publishProgress(pa.height);
}
return maxHeight[0];
}
private void sleep(int i) {
try {
Thread.sleep(i);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
#Override
protected void onProgressUpdate(Integer... values) {
ViewGroup.LayoutParams pa = view.getLayoutParams();
pa.height = values[0];
view.setLayoutParams(pa);
}
#Override
protected void onPostExecute(Integer result) {
ViewGroup.LayoutParams pa = view.getLayoutParams();
pa.height = result;
view.setLayoutParams(pa);
}
}
You should be using a scale animation for this. Here's an example:
ScaleAnimation animation = new ScaleAnimation(1, 2, 1, 2, centerX, centerY); // Scales from normal size (1) to double size (2). centerX/Y is the center of your text view. Change this to set the pivot point of your animation.
animation.setDuration(1000);
myTextView.startAnimation(animation);
You can use droidQuery to simplify this:
//this will set the height of myView to 0px.
$.with(myView).height(0);
//when you are ready to animate to height (in pixels):
$.with(myView).animate("{height:" + height + "}", new AnimationOptions());
Check the documentation if you want to get fancy - such as adding duration, and event callbacks. If you are still noticing non-smooth animation, consider adding the application attribute to your AndroidManifest:
android:hardwareAccelerated="true"
I'm new to Windows Forms, in my project, i need to change the image in the picture box at runtime. I'm able to do that with the help of a timer. The picture just gets changed. Is it possible to do some transitions when image changes, for example fade in, fade out, blur etc.. If possible could some one please let me know how to do it. I searched in net but in vain.Thanks in advance.
Varun
Simply take new code file and paste below code in it
an original answer for the similar question, answer taken from another question
Answer
using System;
using System.Drawing;
using System.Drawing.Imaging;
using System.Windows.Forms;
public class BlendPanel : Panel
{
private Image mImg1;
private Image mImg2;
private float mBlend;
public BlendPanel()
{
SetStyle(ControlStyles.AllPaintingInWmPaint | ControlStyles.UserPaint | ControlStyles.OptimizedDoubleBuffer, true);
}
public Image Image1
{
get { return mImg1; }
set { mImg1 = value; Invalidate(); }
}
public Image Image2
{
get { return mImg2; }
set { mImg2 = value; Invalidate(); }
}
public float Blend
{
get { return mBlend; }
set { mBlend = value; Invalidate(); }
}
protected override void OnPaint(PaintEventArgs e)
{
if (mImg1 == null || mImg2 == null)
e.Graphics.FillRectangle(new SolidBrush(this.BackColor), new Rectangle(0, 0, this.Width, this.Height));
else
{
Rectangle rc = new Rectangle(0, 0, this.Width, this.Height);
ColorMatrix cm = new ColorMatrix();
ImageAttributes ia = new ImageAttributes();
cm.Matrix33 = mBlend;
ia.SetColorMatrix(cm);
e.Graphics.DrawImage(mImg2, rc, 0, 0, mImg2.Width, mImg2.Height, GraphicsUnit.Pixel, ia);
cm.Matrix33 = 1F - mBlend;
ia.SetColorMatrix(cm);
e.Graphics.DrawImage(mImg1, rc, 0, 0, mImg1.Width, mImg1.Height, GraphicsUnit.Pixel, ia);
}
base.OnPaint(e);
}
}
Build your project. You can now drop a BlendPanel from the top of the toolbox onto your form. Here's a sample program that uses it:
private float mBlend;
private int mDir = 1;
public int count = 0;
public Bitmap[] pictures;
public void myPhoto()
{
pictures = new Bitmap[9];
pictures[0] = new Bitmap(#"Library Images\cf3.jpg");
pictures[1] = new Bitmap(#"Library Images\cf4.jpg");
pictures[2] = new Bitmap(#"Library Images\l1.JPG");
pictures[3] = new Bitmap(#"Library Images\l2.JPG");
pictures[4] = new Bitmap(#"Library Images\l3.JPG");
pictures[5] = new Bitmap(#"Library Images\l4.JPG");
pictures[6] = new Bitmap(#"Library Images\l5.JPG");
pictures[7] = new Bitmap(#"Library Images\l6.JPG");
pictures[8] = new Bitmap(#"Library Images\l7.JPG");
timer1.Interval = 50; //time of transition
timer1.Tick += BlendTick;
try
{
blendPanel1.Image1 = pictures[count];
blendPanel1.Image2 = pictures[++count];
}
catch
{
}
timer1.Enabled = true;
}
private void BlendTick(object sender, EventArgs e)
{
mBlend += mDir * 0.02F;
if (mBlend > 1)
{
mBlend = 0.0F;
if ((count + 1) < pictures.Length)
{
blendPanel1.Image1 = pictures[count];
blendPanel1.Image2 = pictures[++count];
}
else
{
blendPanel1.Image1 = pictures[count];
blendPanel1.Image2 = pictures[0];
count = 0;
}
}
blendPanel1.Blend = mBlend;
}
You'll need to modify the new Bitmap(#"yourimagePath"); calls. Build and run. You should see the displayed image smoothly morph from your first image to your second image without any flickering.
I hope it helps for other...
There is no built-in support for such effects, but you can implement them. I'd suggest to write a custom control that renders the image and have a method for fade-swap, fade itself can be reached with alpha-blending drawing with .NET Graphics class.
However, Graphics class isn't very fast, I don't recommend to use this technique for big images. If you need some fancy UI with hw-accelerated effects, take a look at WPF.
Blend effects are easy to get going by using the ColorMatrix class. There's a good example available in my answer in this thread.
A simple way to get a blur is to resize the image, making it smaller, then redraw it back, making it larger. The Graphics.InterpolationMode property affects the type of blur you'll get.
Those are quicky do-it-yourself solutions. Any decent graphics library has these kind of operations built-in. You probably want something free, check out ImageMagick.NET
To put it simply, not without external (3rd-party) libraries.