Trying to make an xna game, where the user needs to tap to stop a bar going down. The simulation is like what we see in a WWE PS3/xbox game, the give up bar.
Anyway, the way i have done it, serves the purpose. However, if the user holds the touch, touch values keep incrementing.
What I want is, if the user taps it, only 1 point will be scored. And when he taps again, he will get 1 point more. At the moment what is happening is, if the user holds it, it keeps incrementing, kind of like in a keyboard (if u hold a button, keypresses keeps going on).
foreach (TouchLocation location in TouchPanel.GetState())
{
if (location.State == TouchLocationState.Moved)
{
touchPoints++;
break;
}
}
Change from TouchLocationState.Moved to TouchLocationState.Pressed. That should only occur with each new touch.
foreach (TouchLocation location in TouchPanel.GetState())
{
TouchLocation prevLocation;
bool prevLocationAvailable = location.TryGetPreviousLocation(out prevLocation);
if (location.State == TouchLocationState.Pressed && prevLocation.State != TouchLocationState.Pressed)
{
touchPoints++;
break;
}
}
And for the future, if you're doing Keyboard input and want each press of the keyboard to increment the value but to be ignored if the player is holding down the space, you just have to store the previous state of the keyboard. Then you compare if the current keyboard state the key is being pressed and the previous keyboard state the key wasn't pressed.
(didn't actually code in compiler so there could be some code issues with the below)
KeyboardState currentKeyboardState = Keyboard.GetState();
if (currentKeyboardState.IsKeyDown(Keys.Space) && !previousKeyboardState.IsKeyDown(Keys.Space) {
//Do whatever it is you want to do with the press of the space key
}
previousKeyboardState = currentKeyboardState;
This is a snippet of my code of how i got each touch to be a individual value.
The system.diagnostics line is the test that will show you in your output box.
TouchCollection touch = TouchPanel.GetState();
foreach (TouchLocation touchLocation in touch)
{
if (touchLocation.State == TouchLocationState.Pressed)
{
base.InputPointX = touchLocation.Position.X;
base.InputPointY = touchLocation.Position.Y;
System.Diagnostics.Debug.WriteLine("X: " + base.InputPointX + \
", Y: " + base.InputPointY);
base.Update();
return true;
}
}
Related
I have a task on Unity 3d that if the player doesn't move for 5 seconds, a pop-up shows on the center of the screen and if the player moves, the pop-up disappears. How can I write the logic for this task please ?
Thanks
Here is code that will check the mouse position of the user and see if it has moved in the last 5 seconds. If it has not, then the popup window will show up. If it's hard to read here with the comments (I kind of think it is) copy and paste this code into Visual Studio so the colors will help distinguish code from comments.
[SerializeField] GameObject popupWindow = null;
float totTime;
float timeBeforePause = 5f;
Vector3 updatedMousePosition;
private void Update()
{
// Add the time delta between frames to the totTime var
totTime += Time.deltaTime;
// Check to see if the current mouse position input is equivalent to updateMousePosition from the previous update
// If they are equivalent, this means that the user hasn't moved the mouse
if (Input.mousePosition == updatedMousePosition)
{
// Since the user hasn't moved the mouse, check to see if the total Time is greater than the timeBeforePause
if (totTime >= timeBeforePause)
{
// Set the popup window to true in order to show the window (instantiate instead it if if doesn't exist already)
popupWindow.SetActive(true);
}
}
// If the user has moved the mouse, set the totTime back to 0 in order to restart the totTime tracking variable
else
{
totTime = 0;
}
// Check to see if the popup window is visible (active)
if (popupWindow.activeSelf == true)
{
// Check to see if the user has pressed the Esc button
if (Input.GetKeyDown(KeyCode.Escape))
{
// Hide the window
popupWindow.SetActive(false);
}
}
// Update the updatedMousePosition before the next frame/update loop executes
updatedMousePosition = Input.mousePosition;
}
If you want to track different user input (key presses) you can use a similar method. Also you will have to implement some sort of button on the popup window that will allow the user to exit out from the popup window once they return. Hope this helps!
I am currently learning Go and trying to make a game which allows players to press several buttons at the same time. Right now, my code works for a while, but sometimes when I randomly press, the GetKeyboardState() always records one or more keys as pressed. The weird key only can be released when I press the key again. Then everything goes correctly again.
For example, I randomly press Up, Down, Left, Right, and right shift bottom on the keyboard to control the character in the game. Suddenly, the character always tries to go right and if I press Up or Down arrow, the character will just go to the top right or the bottom right. Only if I press the right arrow button again, the character can stop go right.
I thought maybe the game goes too fast so I limit the fps under 90 but the situation still exists.
Also, I tried to print out the keyboard status and it always shows the weird bottom was pressed when the situation happened even if I did not touch my keyboard.
func GetInput(keyState []uint8, prevKeyState []uint8) []Input {
input := make([]Input, 0)
if keyState[sdl.SCANCODE_UP] != 0 {
input = append(input, Input{Up})
}
...
// Handle Down, Right, Left
if keyState[sdl.SCANCODE_RSHIFT] == 0 && prevKeyState[sdl.SCANCODE_RSHIFT] != 0 {
input = append(input, Input{RShift})
}
if keyState[sdl.SCANCODE_B] == 0 && prevKeyState[sdl.SCANCODE_B] != 0
{
input = append(input, Input{Debug})
}
// something like prevKeyState = keystate
return input
}
How I use it
keyState := sdl.GetKeyboardState()
prevKeyState := make([]uint8, len(keyState))
for {
...
input := ui.GetInput(keyState, prevKeyState)
HandleInput(input, board)
...
}
I am developing a Java 2D Game, in which I have used a KeyListener, but as you probably can guess, it has focusing issues, mainly when the Player is running and you keep the same key pressed for long, for example pressing "W" to run forward, but after some seconds of keep pressing W, the KeyListener dies and no key works, I want to use KeyBindings, as most people suggest it for game development, but I cannot find any usefull tutorials, most of them use some form of Buttons, and other useless features for my game, so how can i avoid the KeyListener from losing focus, or how can I write a simple KeyBinding code, that only moves the player, and other simple stuff used in a game.
This is the kind of Key Binding that I want, I KNOW IT DOES NOT WORK, it is an example:
component.getInputMap().put(KeyStroke.getKeyStroke(VK_W),
"move forward")
component.getActionMap().put("released",
releasedAction);
if(releasedAction == true){
Player.playerSpeedY = 7;
} else{
Player.playerSpeedY = 0;
}
FWI: this is the current KeyListener code:
if(HUD.PlayerHealth > 0){
if(key == KeyEvent.VK_W) {Player.playerSpeedY = -5; keyDown[0]= true;}
if(key == KeyEvent.VK_S) {Player.playerSpeedY = 5; keyDown [1]= true;}
if(key == KeyEvent.VK_A) {Player.playerSpeedX = -5; keyDown [2]= true;}
if(key == KeyEvent.VK_D) {Player.playerSpeedX = 5; keyDown [3]= true;}
}
I keep looking for Actions and Input maps tutorials, or KeyBinding ones, and I just don't find anything useful, another dough, the component in action and input map, what is it for?, should my entire code be based on that, and is there any way to only make the action map move the player, and only that?
Try something like this:
this.getInputMap().put(KeyStroke.getKeyStroke(KeyEvent.VK_D, 0, false), "right");
this.getActionMap().put("right", new AbstractAction() {
public void actionPerformed(ActionEvent e) {
//Do Something Here
Player.playerSpeedX = 5;
}
});
How to use KeyBindings
I am new to game development but familiar with programming languages. I have started using Flixel and have a working Breakout game with score and lives.
I am just stuck on how I can create a new screen/game over screen if a player runs out of lives. I would like the process to be like following:
Check IF lives are equal to 0
Pause the game and display a new screen (probably transparent) that says 'Game Over'
When a user clicks or hits ENTER restart the level
Here is the function I currently have to update the lives:
private function loseLive(_ball:FlxObject, _bottomWall:FlxObject):void
{
// check for game over
if (lives_count == 0)
{
}
else
{
FlxG:lives_count -= 1;
lives.text = 'Lives: ' + lives_count.toString()
}
}
Here is my main game.as:
package
{
import org.flixel.*;
public class Game extends FlxGame
{
private const resolution:FlxPoint = new FlxPoint(640, 480);
private const zoom:uint = 2;
private const fps:uint = 60;
public function Game()
{
super(resolution.x / zoom, resolution.y / zoom, PlayState, zoom);
FlxG.flashFramerate = fps;
}
}
}
There are multiple ways to go about doing this...
You could use different FlxStates, like I described in the answer to your other post: Creating user UI using Flixel, although you'll have to get smart with passing the score or whatever around, or use a Registry-type setup
If you want it to actually work like you described above, with a transparent-overlay screen, you can try something like this (keep in mind, the exact details may differ for your project, I'm just trying to give you an idea):
First, make sure you have good logic for starting a level, lets say it's a function called StartLevel.
You'll want to define a flag - just a Boolean - that tracks whether or not the game is still going on or not: private var _isGameOver:Boolean; At the very end of StartLevel(), set this to false.
In your create() function for your PlayState, build a new FlxGroup which has all the things you want on your Game Over screen - some text, an image, and something that says "Press ENTER to Restart" (or whatever). Then set it to visible = false. The code for that might look something like:
grpGameOver = new FlxGroup();
grpGameOver.add(new FlxSprite(10,10).makeGraphic(FlxG.Width-20,FlxG.Height-20,0x66000000)); // just a semi-transparent black box to cover your game screen.
grpGameOver.add(new FlxText(...)); // whatever you want to add to the group...
grpGameOver.visible = false;
add(grpGameOver); // add the group to your State.
Depending on how your game is setup, you may also want to set the objects in your group's scrollFactor to 0 - if your game screen scrolls at all:
grpGameOver.setAll("scrollFactor", new FlxPoint(0,0));
In your update() function, you'll need to split it into 2 parts: one for when the game is over, and one for if the game is still going on:
if (_isGameOver)
{
if (FlxG.keys.justReleased("ENTER"))
{
grpGameOver.visible = false;
StartLevel();
}
}
else
{
... the rest of your game logic that you already have ...
}
super.update();
Keep in mind, if you have things that respond to user input anywhere else - like a player object or something, you might need to change their update() functions to check for that flag as well.
Then, the last thing you need to do is in your loseLive() logic:
if (lives_count == 0)
{
_isGameOver = true;
grpGameOver.visible = true;
}
else
...
That should do it!
I would highly recommend spending some time with different tutorials and sample projects to kind of get a better feel for Flixel in general. Photon Storm has some great material to play with (even though he's jumped over to HTML5 games)
I also want to note that if you get comfortable with the way Flixel handles updates, you can get really smart with your state's update() function and have it only call update on the grpGameOver objects, instead of having to change all your other objects updates individually. Pretty advanced stuff, but can be worth it to learn it.
I'm creating a game where the player will use Drag gestures to "slash" an enemy, swiping their finger across the screen to kill them.
I have a feeling this should be easier than it is, but currently the code I have to detect this is:
while (TouchPanel.IsGestureAvailable)
{
GestureSample gs = TouchPanel.ReadGesture();
if (gs.GestureType == GestureType.FreeDrag ||
gs.GestureType == GestureType.HorizontalDrag ||
gs.GestureType == GestureType.VerticalDrag)
{
Current_Start = gs.Position;
Current_End = Current_Start + gs.Delta;
}
if (gs.GestureType == GestureType.DragComplete)
{
DragEnded = true;
}
}
This isn't quite working, though. I need the two vectors of:
Where the drag started
Where the drag ended
What is wrong, and how would I get this to work?
I would try using the onmousedown and onmouseup events to get the start and end points and go from there.