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• How to autohide Unity 2D?

  - by ph1b

  In the regular Unity 3D, I used Compiz Config Manager where I could config the Unity-Plugin to autohide the left start-bar and not to show it when moving my mouse to the left. So it was perfect for using Docky. But with Unity 2D the Unity settings don't have any effect. How can I completely hide the start-panel and just have it shown when…

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• Homemaking a 2d soft body physics engine

  - by Griffin

  hey so I've decided to Code my own 2D soft-body physics engine in C++ since apparently none exist and I'm starting only with a general idea/understanding on how physics work and could be simulated: by giving points and connections between points properties such as elasticity, density, mass, shape retention, friction, stickiness, etc. …

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• Implementing 2D CSG (for collision shapes)?

  - by bluescrn

  Are there any simple (or well documented) algorithms for basic CSG operations on 2D polygons? I'm looking for a way to 'add' a number of overlapping 2D collision shapes. These may be convex or concave, but will be closed shapes, defined as a set of line segments, with no self-intersections. The use of this would be to construct a clean…

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• Homemaking a 2d soft body physics engine

  - by Griffin

  hey so I've decided to Code my own 2D soft-body physics engine in C++ since apparently none exist and I'm starting only with a general idea/understanding on how physics work and could be simulated: by giving points and connections between points properties such as elasticity, density, mass, shape retention, friction, stickiness, etc. …

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• Why use 3d matrix and camera in 2D world for 2d geometric figures?

  - by Navy Seal

  I'm working in XNA on a 2d isometric world/game and I'm using DrawUserPrimitives to draw some geometric figures... I saw some tutorials about creating dynamic shadows but I didn't understood why they use a "3d" matrix to control the transformations since the figure I'm drawing is in 2d perspective. I know I'm drawing a 2d figure in 3d…

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• 2D Pixel/sprite game in unity? [on hold]

  - by acidzombie24

  Hi I'm an absolute newbie in unity. In the past I was told unity is terrible for 2d games so I look away after looking at it for a few days. I don't remember if this was right before unity4 came out or after. I hear unity is fairly good at 2d now. I tried googling for tutorials but I'm doing it wrong. I could not find a good tetris or…

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• Resources for 2D rendering using OpenGL?

  - by nightcracker

  I noticed that there is quite some difference between 3D and 2D rendering using OpenGL, the techniques are different - pixel-perfect placing is a lot more desirable, among other things. Are there any good (complete) references on using OpenGL for rendering 2D graphics? There are quite a few "tutorials" around on the net that help you…

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• Read array dump output and generates the correspondent XML file

  - by Christian

  Hi, The text below is the dump of a multidimensional array, dumped by the var_dump() PHP function. I need a Java function that reads a file with a content like this (attached) and returns it in XML. For a reference, in site http://pear.php.net/package/Var_Dump/ you can find the code (in PHP) that generates dumps in XML, so all…

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• PHP - "tabulate" array - make levels from elements

  - by Moha

  If I have an array like this: Array ( [0] => field_schools [1] => und [2] => 0 [3] => field_school [4] => und [5] => 0 [6] => value ) How can I make an array like this from it? array ( [field_schools] => array ( [und] => array ( [0] => array …

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• Length of array (C) [migrated]

  - by physics

  I have an array of 10 elements. This array stocks some informations but last information is ended by an symbol "END" (which is -1). for exemple: array[0] = 1; array[1] = 1; array[2] = 1; array[3] = 1; array[4] = 1; array[5] = 1; array[6] = END; So in this case the length is 7 instead of 10. Here is my algorithm: for (i =…

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• Can I still use unity 2d [duplicate]

  - by dragonloverlord

  This question already has an answer here: Is it possible to change Unity 3D to 2D and will I gain any performance boost after that? 3 answers I can not run unity 3d on my Chromebook but unity 2d in Ubuntu 12.04 works…

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• spinning a 2d Cube

  - by Rahul Verma

  I know that a cube is actually a 3d shape , but i have some other problem over here. I have been doing 2D Game dev using libgdx but have never touched 3D rendering. Now what I want in my 2D game is that instead of coins I make my player collect magical cubes. But those cubes need to be spinning on one Diagonal, same can…

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• Calculating the 2D edge normals of a triangle

  - by Kazade

  What's a reliable way to calculate a 2D normal vector for each edge of a triangle, so that each normal is pointing outwards from the triangle? To clarify, given any triangle - for each edge (e.g p2-p1), I need to calculate a 2D normal vector pointing away from the triangle at right angles to the edge (for simplicity we…

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• 2D camera perspective projection from 3D coordinates -- HOW?

  - by Jack

  I am developing a camera for a 2D game with a top-down view that has depth. It's almost a 3D camera. Basically, every object has a Z even though it is in 2D, and similarly to parallax layers their position, scale and rotation speed vary based on their Z. I guess this would be a perspective projection. But I am having…

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• Transform 3d viewport vector to 2d vector

  - by learning_sam

  I am playing around with 3d transformations and came along an issue. I have a 3d vector already within the viewport and need to transform it to a 2d vector. (let's say my screen is 10x10) Does that just straight works like regualar transformation or is something different here? i.e.: I have the vector a = (2, 1, 0)…

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• Compare two associative arrays and create a new array with the matched arrays, PHP

  - by user194630

  I have this two arrays: $arr1=array( array("id" => 8, "name" => "test1"), array("id" => 4, "name" => "test2"), array("id" => 3, "name" => "test3") ); $arr2=array( array("id" => 3), array("id" => 4) ); How can i…

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• Array Unique in two dimentional array in PHP

  - by Kaiser

  Hi I have an array that looks like this : Array ( [0] => Array ( [x] => 01 [y] => 244 ) [1] => Array ( [x] => 02 [y] => 244 ) [2] => Array ( [x] => 03 [y] => 244 ) [3] => Array ( [x] => 04 [y] => 243 ) [4] => Array ( [x] => 05 [y] => 243 ) [5] => Array ( [x]…

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• Array Unique in two dimensional array in PHP

  - by Kaiser

  Hi I have an array that looks like this : Array ( [0] => Array ( [x] => 01 [y] => 244 ) [1] => Array ( [x] => 02 [y] => 244 ) [2] => Array ( [x] => 03 [y] => 244 ) [3] => Array ( [x] => 04 [y] => 243 ) [4] => Array ( [x] => 05 [y] => 243 ) [5] => Array ( [x]…

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• Creating a 2d matrix from an array (java)

  - by anna

  I'm supposed to write a method that creates a 2d matrix from an array, for instance: ({1, 2, 3, 4}, 3) should return the matrix {{1, 2, 3}, {4}} public class Matrix { public static int[][]toM(int[] array, int a) { int[][]matrix = new int [(array.length + a- 1)/ a][a]; for (int i = 0; i <…

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• Create an array of inner array values with array function in PHP

  - by Jusnit

  How to create an array of inner array values with array function ? Here is array Array ( [0] => Array ( [Detail] => Array ( [detail_id] => 1 ) ) [1] => Array ( [Detail] => Array ( [detail_id] => 4…

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• Making an AI walk on a NavigationMesh (2D/Top-Down game)

  - by Lennard Fonteijn

  For some time I have been working on a framework which should make it possible to generate 2D levels based on a set of rules specified by level designers. You can read more about it here as I won't go into details: http://www.jorisdormans.nl/article.php?ref=engineering_emergence Anyway, I'm now at…

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• 2D animations frames vs 3D animation for small indie project: timing considerations

  - by mm24

  pretty lame question but was wondering.. I am developing a 2D game using Cocos2D for iOS. The art work till now is all 2D (is a shooter game) but some of the characters would benefit of complex animations (eg. 20 frames). I feel a bit stupid because I came across only now that there is the chance…

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• Split a 2D scene in layers or have a z coordinate

  - by Bane

  I am in the process of writing a 2D game engine, and a dilemma emerged. Let me explain the situation... I have a Scene class, to which various objects can be added (Drawable, ParticleEmitter, Light2D, etc), and as this is a 2D scene, things will obviously be drawn over each other. My first…

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• Define 2D array with loops in php

  - by Michael

  I have an array $rows where each element is a row of 15 tab-delimited values. I want to explode $rows into a 2D array $rowData where each row is an array element and each tab-delimited value is assigned to a different array element. I've tried these two methods without success. I know the…

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• in_array() and multidimensional array

  - by lauthiamkok

  I use in_array() to check whether a value exists in an array like below, $a = array("Mac", "NT", "Irix", "Linux"); if (in_array("Irix", $a)) { echo "Got Irix"; } //print_r($a); but what about an multidimensional array (below) - how can I check that value whether it exists in the…

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