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Questions tagged [touch]

An input method used in games; this generally refers to the input used by mobile phones and tablet-type computers.

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37
votes
9answers
10k views

How can I quantify a drawn line's straightness?

I'm working on a game which requires players to draw a line from a point A(x1,y1) to the other point B(x2,y2) on the screen of an Android device. I want to find how well that drawing fits to a ...
16
votes
5answers
3k views

What is a suitable input method to use for a 2D platformer on a touch device?

I am creating a 2d platformer game like Super Meat Boy in which precision of movement of my lead character matters. I am using libgdx. The keyboard controls on the PC work precisely, but when it comes ...
13
votes
4answers
387 views

Player fatigue for tablets?

I'm thinking about making games for tablets. Coming from a PC/console background, I'm keenly aware of the huge differences in the user interfaces, and that I need to design it with the target platform ...
12
votes
6answers
7k views

Making (or emulating) a “D-Pad” on a touch-screen; virtual d-pad

With the proliferation of touch based devices, many lacking a true D-Pad, I'm wondering if anyone has any resources on how to emulate a D-Pad on a touch screen? I'm specifically interested in XNA and/...
11
votes
1answer
591 views

Is there a gold standard for touch controls in scrolling shoot-em-ups?

Is there currently a "standard" for touch controls in shooters on platforms such as iPhone or Android? I've noticed that many of them enable auto-fire by default, or control the character via direct ...
8
votes
1answer
842 views

How small should touch triggers be at minimum?

Is there a known minimum physical size for reliable touch select triggers, considering only selection (no long-press or drag). From personal experience, I would guess it to be about 5x5 mm (0.2x0.2 ...
7
votes
3answers
204 views

Where to show user shot's power on touch screen?

I want to show user shot power in standart way (the more user holds finger on the screen the stronger is shot) Where is the best place to show this icon on touch screen(when I use mouse it's better ...
7
votes
2answers
5k views

How to differentiate a tap from a drag

I'm creating an app and I'm trying to make it so I can drag a sprite (with a second sprite on top) around the screen, but if I just tap the sprite some other method should get called. I got the ...
7
votes
4answers
47k views

How to move gameobject with touch on Android [duplicate]

I'm trying to make a game where you control a character via touch on Android devices. The player will have two degrees of movement. When you touch the touch screen and move your finger, the game ...
6
votes
2answers
1k views

android multitouch problem

Im aware that there a a couple of posts on this matter, but Ive tried all of them and none of them gets rid of my problem. Im starting to get close to the end of my game so I bought a cabel to try it ...
6
votes
2answers
533 views

Calculating and detecting curves

How can I detect the 'steepness' of a curve? For example, if the user swipes their finger across the screen in a curve, what's the best way of detecting whether the curve is almost a semi-circle, or ...
6
votes
4answers
1k views

Optimal touch controls for a twin-stick shoot 'em up?

So we recently launched a shoot 'em up arcade-type game (think Smash TV or I Made a Game with Zombies in It!). You can move in one direction and fire in another, so the ideal control scheme is ...
5
votes
3answers
2k views

What's the best control scheme for an arena shooter on a touchscreen phone? [closed]

I am developing Android an game. It's going to be a top-down shooter with stealth features. I am now thinking about how to the make controls. Most top-down games are now twin stick (joystick on the ...
5
votes
2answers
534 views

Touch taps only on very short flicks on Win7 with Monogame

I have an application on win7 which needs to support touch and mouse input using monogame. But reading touch taps proves to be a very hard thing. The TouchPanel is initialized like this: ...
4
votes
2answers
7k views

Android multitouch: How to detect movement on non-primary pointer / finger?

How does one go about detecting a secondary/non-primary finger moving? There is: ACTION_DOWN and ACTION_UP to detect a primary finger pressing the screen / leaving the screen ACTION_POINTER_DOWN ...
4
votes
2answers
6k views

On screen controller for libgdx games?

Does anyone know a better controller for 2D Games than a virtual on screen joystick? The pros of the joystick are: Easy to implement for developers Familiar interface for users But there is a huge ...
4
votes
1answer
488 views

Keep cube spinning after fling

So I've been trying to get started with game development for Android using Unity3D. For my first project I've made a simple cube that you can spin using touch. For that I have the following code: <...
4
votes
1answer
391 views

Do you prototype mobile touch games on the desktop with mouse input? What tricks do you use?

So I've been prototyping games that if completed would be mobile apps most likely. But, I'm developing them in XNA on the desktop because its the environment I like the most. I know I could target ...
4
votes
1answer
505 views

How do I detect if two sprites are being touched at the same time?

How do I detect if two sprites are being touched at the same time? I was able to detect one sprite, but not if another sprite is being touched by the second pointer. ...
4
votes
1answer
1k views

How can I avoid a delay with continues touch detection in swift?

I want control a character on my screen with a continuous swipe gesture. As soon as I do a swipe +x or -x my character moves ...
4
votes
1answer
18k views

Examples of Android Joystick Controls? [closed]

I can't seem to find any well executed code examples for Android joystick controls. Whatever it may be, algorithms, pseudo code, actual code examples, strategies, or anything to assist with the ...
3
votes
3answers
2k views

Spot the difference game design help

I'm thinking of making a spot the difference game. But immediately I stumbled over a problem. I'm thinking of storing a "difference area" in the form of a x,y ...
3
votes
1answer
2k views

LibGDX viewport touch coordinates transformation

I've been trying to get LibGDX's viewport and camera unproject() to work and so far none of the tutorials/answers I've found have worked for me. I have a game window of 840x480 units with FitViewport....
3
votes
1answer
517 views

Testing SFML sf::Touch on ordinary PC

So I’ve created a small app that is designed to be used on smartphones and tablets. Accordingly the app makes use of the sf::Touch class which determines the point on the screen of the device that the ...
3
votes
1answer
1k views

How do I quantify the curvature of a touch swipe?

I'm implementing a touch controller for my game. I am attempting to imitate Tiki Taka Soccer's "ball shooting" controls (gameplay video), where the curvature of the player's swipe affects the curve ...
3
votes
1answer
10k views

How to enable CrossPlatformInput in Unity?

I'm new to Unity but not a complete programming novice. I'm trying to use the CrossPlatformInput component from the "Car" prefab from Standard Assets. I can't see ...
3
votes
1answer
923 views

How do I convert the coordinates of a click to a tilemap position?

How do you turn a tilemap (produced by TileD) for cocos2d where I can click on individual items and get a callback? Is it just a case of converting captured touch and finding out where it is on the ...
3
votes
1answer
835 views

How to emulate knob turning, based on x/y movement?

I'm doing a game where one component is that you turn a knob. I'm having trouble getting good "knob behavior". I know the current touch/mouse X,Y location, and I keep track of the previous X,Y ...
3
votes
3answers
2k views

Card game - creating card Listener

I am making a card game where there are 21 cards on hand and 2 options from where user can draw cards to his hand and throw a card from hand. I am new on game development and I'm following the ...
3
votes
1answer
3k views

Unity 2D detect if swipe goes through an object [closed]

I am developing a game in unity with flying arrows that the user tries to deflect by swiping through them (changing their direction). I can get the arrows to move with the swipes, but they move no ...
2
votes
1answer
2k views

Actor not taking touch libGDX

I am trying to handle the touch of one of the Actors in the stage. The following is the code I have written: ...
2
votes
1answer
879 views

Distinguish touch gestures for distinct horizontal and vertical commands

In my script below I'm using horizontal and vertical swipe gesture to move the character but both gestures are called on a single touch. ...
2
votes
1answer
594 views

Keeping Android device awake [closed]

I currently program a game in which the user don't need to interact with the screen. Is there any way to keep the screen awake?
2
votes
1answer
36k views

How to detect that user has touched UI canvas in Unity 4.6?

In my 2d game I have a HUD with some buttons on it. To make it I am using new UI system, which was presented in Unity 4.6. When user is touching button, I am running method, which was declared in ...
2
votes
1answer
2k views

How to tell what part of a 3D cube was touched

I am writing a rather simple android game and I am implementing Open GL to draw a 3D cube that spins upon the X, Y and Z axis and I need to know where the user has clicked on the texture of the cube. ...
2
votes
2answers
1k views

Basic game architechture best practices in Cocos2D on iOS

Consider the following simple game: 20 squares floating around an iPhone's screen. Tapping a square causes that square to disappear. What's the "best practices" way to set this up in Cocos2D? Here's ...
2
votes
1answer
1k views

LibGDX - how to detect touchUp with GestureListener?

I'm making a game and I have implemented GestureListener as my inputprocessor. It came with a bunch of methods such as fling, pan, tap etc etc including touchDown. However, there is no touchUp method! ...
2
votes
1answer
275 views

How to obtain touch events from a GL Viewport, not the whole screen?

Background I'm implementing viewport resizing in order for my game to maintain the same display ratio on all devices. However, I've found an issue with getting touch events. Basically, if my ...
2
votes
1answer
94 views

Augment an existing game with touch gestures

I want to enhance Homeworld 2 gameplay with touch gestures. The game is running on Windows. So, two questions: Is it possible to wrap the game with a program that would capture touch gestures, ...
2
votes
2answers
180 views

Help with Javascript touch button

I tried many buttons but I can't connect them with the (Java)Script. So I made 2 gui buttons: one for jump which was easy because I have an if statement and if it'...
2
votes
1answer
456 views

Unable to achieve two finger panning

I'm looking to achieve a two finger smooth pan system in my project. However, the code below does not work, any interaction with the screen doesn't change to position of the camera. I am unsure where ...
2
votes
2answers
6k views

Adding touch/click event to a bitmap in android

In my android game, there is a surfaceview which has 36 bitmaps drawn on it. I want to change the ...
2
votes
2answers
1k views

Odd Android touch event problem (Nexus 10)

Overview When testing my game I came across a bizarre problem with my touch controls. Note this isn't related to multi-touch as I completely removed my ACTION_POINTER_UP and ACTION_POINTER_DOWN ...
2
votes
1answer
1k views

Why does Unity require an EventSystem component for input during a play-test, where input works fine without it in a build?

Please be aware that this was initially a question about how to get the input to work. A comment pointed me in the direction of a fix, but only left me with more questions in regards to understanding ...
2
votes
1answer
342 views

Libgdx - How to change GestureListener pan finger sensibility?

I implemented GestureListener in my Overlap2dStage to pan the camera when the player drags its finger over the screen. But I also have some actors that extend InputAdapter to detect when the user ...
1
vote
2answers
191 views

atan2 : inversed result? (angle 180 is on the right side, angle 0 on the left side)

the result of the angle between my touch and the middle,bottom of the screen gives me 180 when the touch is on the right side of the screen, and 0 when it is on the left. I don't understand why... <...
1
vote
3answers
7k views

How to create / draw clickable object (such as Button in WinForm) in XNA WP8?

I am developing a 2D (No 3D in every aspect) Windows Phone 8 turn based tactical games for my college project. I use Monogame. I want to draw an object similar to Button in windows form, that if the ...
1
vote
1answer
126 views

Where to put input detector?

So below is the usual XNA Game Component override method. If I want to add a touch input detector (lets say, I want to draw a rectangle under touched screen area), where do I put it and how? Googled ...
1
vote
1answer
2k views

Rotate triangle so that its tip points in the direction of the point on the screen that we last touched

OpenGL ES - Android. Hello all, I am unable to rotate the triangle accordingly in such a way that its tip always points to my finger. What i did : Constructed a triangle in by GL.GL_TRIANGLES. Added ...
1
vote
2answers
1k views

Get world position of touch on objects

In my Unity3d game, I want to get the world position that was touched, when I touch a specific object, regardless of all objects that are in front of it. How would I do that, I only know Camera....