2
votes
2answers
40 views

2D multiple circle collision response

I'm trying to implement simple 2D circle collision system. There are circles with different radiuses and velocities (the larger the circle the slower it is). Contrary to all the questions on the ...
0
votes
0answers
3 views

How would I go about creating my own SDK to allow users to develop their own addon mods?

I am looking into developing a game, but I am very interested in the more abstract concepts such as modding. I would like to know, or get linked to information detailing the prerequisites, ...
0
votes
1answer
174 views

Check if object is overlapping

I have two objects, both of them with polygon colliders. When I click on one of the objects, I want the player to drag it on top of the other object (without collision). If there is overlap when he ...
0
votes
1answer
10 views

How can I add extensions to libGDX

I had a problem with my Font in a game I am developing in libGdx. After some googling I was instructed to use the following code: private void createFonts() { FileHandle fontFile = ...
0
votes
2answers
23 views

Should input be per-frame or per-update?

I'm implementing a GUI system to look around a 2D tile-based world. At the moment, I'm updating it every time the mouse moves (which happens to be per frame, since that's when it polls for events). ...
0
votes
2answers
442 views

LibGDX , Scale button with animation when it is pressed

I am developing game using LibGDX . I want to create beautiful menu and to scale buttons when they are pressed but not in this way , when it is pressed scale it 1.5f , I want to scale it with ...
0
votes
0answers
11 views

How to use Input.GetAxis(“Mouse X/Y”) to rotate the camera?

I want to make a first person camera that rotates with the mouse. I looked at the Input.GetAxis Scripting API page and found a sample code, which I have included at the bottom of my post. Upon trying ...
0
votes
1answer
177 views

Trying to implement Camera

I'm trying to implement a Camera class in order to walk and look on the world as follow: #ifndef _CAMERA_H_ #define _CAMERA_H_ #include <glm\glm.hpp> class Camera { public: Camera(); ...
0
votes
2answers
28 views

How to create custom gravity in unreal engine and only affect specific actors?

I am fairly new to unreal engine and I would like to know how to set custom gravity in a specific point or area instead of down. For example I do not want the gravity pull to be down but more to the ...
0
votes
2answers
805 views

How do I determine the look-at vector of a free-look camera?

I'm trying to create a free-look camera with DirectX 10. I've figured out how to get the directions for forward and back and left to right. However, I don't know how to rotate the look-at vector of ...
0
votes
1answer
142 views

Can I post to Facebook with my own text from Unity on behalf of the user?

I'm using Facebook SDK for Unity 6.0 with FB.Feed. I'm trying to post a link to the user's feed, text and link on his behalf. So far I've managed to publish only a link and its details, the part ...
0
votes
0answers
16 views

Speed up the DirectX game - how else can I boost the fps with typical triangle drawing?

I am writing my own c++/DirectX engine. I've made the basic framework and here comes the time for optimizations. I don't want to focus on optimizing the resources themselves right now (meshes, ...
0
votes
1answer
9 views

Render specific part of a texture in OpenGL (2D Sprite Sheet)

I've looked at this answer to find out how to render just a part of a texture: http://stackoverflow.com/questions/6884285/c-opengl-render-part-of-an-image I tried that, but the problem is, this is how ...
0
votes
0answers
4 views

Box2D - Slow movement on bodies when some are above others

I set a random position around the screen to some circle bodies with 1f density. And when some of them are above other bodies, they move until they dont touch each to other. I want this movement, but ...
1
vote
1answer
253 views

Cocos2dx+Chipmunk: Fully elastic collision between moving bodies

I'm using Cocos2dx and the built in Chipmunk physics engine, and currently I've got my PhysicsBodys' materials set up with: Density=0 Restitution=1 Friction=0 in order to get fully elastic ...
0
votes
1answer
25 views

How to detect a collision between a isosceles trapezoid and a circle

I figured one approach would be to divide the trapezoid in three parts, two triangles and a rectangle in the middle. Then for the circle-rectangle case I would check collision like this: function ...
0
votes
1answer
207 views

How to create planets

I need 3D planet models for my game. I can add objects onto the planet and add the sky by myself, but are there any good modeling tools for creating big spheres that would allow me to add mountains ...
0
votes
0answers
9 views

Making certain GameObjects visible for a camera

I have 2 cameras in my 2D game. One displays gameobjects normally, and the other camera draws some of these gameobjects reflected (scale.y *= -1). The reflected camera would draw only objects in the ...
0
votes
1answer
135 views

Fb.Feed dialog closes before saving

I'm having trouble with the Facebook UnitySDK when I use the FB.Feed() method for posting on user's timeline. The share dialog closes before the post is completed, Right after i press the "Post" ...
0
votes
1answer
22 views

How do I query a LibGDX Box2DLights “light” and “dark” regions?

I have lighting implemented using Box2dLight. I want to update/render things inside the player's PointLight area. Stuff in the dark area should not be rendered. How can I find which areas are lit or ...
1
vote
1answer
27 views

Waitforseconds is skipping over

I have a function for a timer using waitforseconds but instead of waiting for how long I want to, it just skips it. A ui text should become "foo" then 5 seconds later become "bar" but it turns to ...
0
votes
0answers
26 views

How do I implement a sparse voxel octree?

I've been working on a voxel engine and I want to implement sparse voxel storage. As I understand it, it works a bit differently from a regular octree and has some neat performance increasing ...
0
votes
0answers
9 views

show different color areas of image on touch

How do I show colors filled in on a colorless version of an image on user touch. (for example color mania or guess the colors app). I know one way is to provide the same image 3 times (for 3 colors) ...
1
vote
3answers
27 views

How to rotate a whole rectangle by an arbitrary angle around the origin using a transformation matrix?

Suppose, I have a rectangle ABCD. Where, A(0,0), B(7,0), C(7,5) and D(0,5). I want to rotate the whole rectangle by theta = 50°. I know that, a rotation transformation matrix can be used to do ...
0
votes
1answer
7 views

3D space indexing for nearest neighbor searching

I am developing a CAD-like application where the user can draw (digitize) new geometries (points, polylines & polygons). While digitizing, I want the user to be able to (optionally) snap the ...
0
votes
1answer
59 views

Shadow map depth error makes all light be covered and hidden

I've been following the tutorials listed below: http://www.riemers.net/eng/Tutorials/XNA/Csharp/Series3/Shadow_map.php http://xbox.create.msdn.com/en-US/education/catalog/sample/shadow_mapping_1 ...
1
vote
2answers
42 views

How to handle (0,0) in 2D game quad tree?

I am not sure how to handle situation when out objects (player) is in center (0,0) point of game which is crossing of four quads. How to handle that case? This image shows problem: Red rectangle is ...
0
votes
0answers
3 views

Feeding accelerometer data to vjoy

I am getting roll, pitch, yaw data from my accelerometer data. How do I map it to vJoy's appropriate axes given as X, Y, Z, Rx, Ry, Rz and Slider1, Slider2? Do I have to reverse engineer into ...
1
vote
1answer
300 views

Decentralized Matchmaking in Unity?

I'm making a card-playing game, similar to Magic Workstation. I've been looking into several options for networking. I have a working LAN version with the build in Unity networking, as well as Photon ...
0
votes
2answers
260 views

How to design basic physics and movement behavior for 2D platformer?

I want to make a simple 2D platformer. I know some basic 2D physics and how to implement them in a game. How to make a character jump, accelerate, decelerate, etc. But I have no idea how to actually ...
1
vote
1answer
825 views

How to design enemies pattern in non-bullet-hell shmups in Unity? [closed]

I am making a top down shooter. Enemies will come in waves and attack in many different patterns (i.e. wave of 10 enemies flying in a elliptic curves, or a huge boss floating and shooting at you, ...
-1
votes
0answers
18 views

Snake game suggestions on code improvement [on hold]

Hello i would apreciate any suggestions on how to make my code better and more efficient.Thanks in advance! #include <stdio.h> #include <time.h> #include <windows.h> struct ...
0
votes
1answer
57 views

Is there a way of moving the transform of an object relative to it's geometry

I have a number of objects (mostly prefabs) that have their transform origin in inconvienient places such as about 1 unit to the left of the actual geometry or somewhere inside an object where it's ...
1
vote
1answer
25 views

How can i handle collision response in a voxel game?

I'm making a voxel game with cubes - like in minecraft - and I have figured out how to check wether the player is colliding with a voxel, I have just done it by checking wether the player is within a ...
0
votes
1answer
865 views

How to attach a sprite to a TMXTiledMap at a particular coordinate, in AndEngine?

I am trying to add a sprite at a "grid" location on the tiled map. The TMX tiled Map is like a grid, and you can access the size of the grid by calling mTMXtiledMap.getTileRows() and ...
0
votes
1answer
12 views

How do I store game data with cookies?

Im working on a game right now, but I was wondering how I would store the game data in cookies(in javascript) where you can load it up, and resume the last spot you were at. I was looking at some ...
0
votes
1answer
40 views

Orthographic Camera settings for a 2D game

I'm starting out a 2D wrestling game in Unity 5 and i need some help. The default resolution of game needs to be 320x240. The background sprite that i would be using is 640x480. The camera would move ...
0
votes
1answer
182 views

Collision detection doesn't register until player sprite jumps

I have implemented a shooting mechanic into my game, and the act of shooting works fine. The shooting work is done in my "game1" class. The issue that arises is when I incorporate collision detection ...
-1
votes
0answers
23 views

Raytracing in OpenGL

I've been looking through some raytracing information recently and I have a question. I think the only way to do raytracing in OpenGL is to use the compute shader, right ? But does it have the luck of ...
0
votes
1answer
13 views

Get the current time of animation using script Unity3d

I want to know the current time of the played animation using script in Unity3d. I tried using currentState.normalizedTime but this time is not the time of the animation, like it's the time of the ...
0
votes
2answers
328 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 ...
0
votes
1answer
23 views

Scene2D: How to use Image.setDrawable()

I'm trying to change the texture of an Image actor on my Scene2D stage, however I can't seem to get it working. It seems like setDrawable() doesn't really do anything. For example, this will make ...
0
votes
0answers
13 views

Ball move by press button on the screen [on hold]

How to make a a ball move (left or right only) by press a button on the screen. I need a code for this one. Thank you
8
votes
6answers
2k views

How come the 3d graphics and animations of MMORPGs are usually worse than non-online 3d games? [on hold]

I have noticed that in general it seems like the 3d graphics and animations for MMOs and MMORPGs seem not as seductive and polished as the graphics for normal, non-online 3d games. How come this is ...
1
vote
2answers
47 views

Preventing a Combination of Rigidbody Jump Force & Bounce Magnitude in Unity3D

I'm building a fairly simple marble racing game in Unity3D. The ball is a 3D physics object that moves only on the X and Y axes. It has the ability to roll left and right, and to jump. Pretty basic ...
0
votes
0answers
30 views

My bullet changes the velocity depending on where I click

I want to build a little 2D-Sidescrolling shooter and I'm now at the shooting script. I already figured out how to shoot a bullet towards my mouse pointer. I got something like this : Vector3 ...
0
votes
1answer
908 views

Libgdx actor bounds are wrong

The Actor's boundaries are not centered at the ButtonText but I used the setBounds() method. The higher the Y position is, the less centered is the boundary. The weird thing is that i only created ...
17
votes
3answers
1k views

How do I implement a retro-style password-based “savegame” system?

How would I make a password system for a single-player game like the ones used in older console games? For example, Mega Man X saves work by giving you a series of numbers that you can enter later to ...
0
votes
2answers
118 views

Creating a static 2D background at runtime

I'm using unity for a 2D game. We have a lot of props for grass, plants, flowers, etc that are static and always in the background. I'd like to optimize the background and reduce the drawcalls as ...

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