2D games are drawn in a two-dimensional space using two-dimensional objects. To represent its position, each game object will have an `x` and a `y` coordinate.

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99 views

How to “piece together” an image in code, to render later?

I want to make a game in Dart and have decided to use the available port of the JS Phaser game engine. This will be my first time really making a game involving graphics so I guess I'll have a lot to ...
0
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2answers
45 views

How to keep a shape inside a rectangle

So i'm making a game which is based on randomly generated rooms and i need a way to keep the player inside them and make the player glide when he collides with the room's bounds. I currently have a ...
0
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1answer
58 views

Player position on second player connection

I'm having some trouble trying to run my game for the multiplayer part. I'm creating a 2d game. I have followed this tutorial : ...
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1answer
76 views

LibGDX - Executing 2 different touchDown events in the same method

On the bottom left of my screen is a circle with an Arrow and on the bottom right is a circle with a gun. If the player is in jetpack mode and the Arrow "button" is clicked he flies like flappy bird ...
0
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1answer
28 views

Unity 2D - scale sprite according to screen width

So I have a square sprite (width == height) and I want to scale it so that both width and height are exactly one fifth of the width screen. To find the desired pixel width I do: float ...
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1answer
27 views

How do i load, render and trasnform 2D images using Direct3D 11 API?

In my small game project using DirectX 11 API, I created a Direct3D device, and can draw 3D meshes, using web tutorials and a book. But I cannot figure out how to load, transform (rotate, scale, ...
5
votes
3answers
19k views

How do I create a 3D model based on 2D drawings?

I'm a programmer. I have a great draftsman, but I don't know how to take his drawings to 3D. My gut feeling is to have him draw different view angles, then work based on those, adding each dimension ...
0
votes
1answer
59 views

Draw GUI.Button on certain position on a scrollable background

Problem is in a 2D game I have a large background around 2 screens wide. And on there I got 4 buttons placed on top of background all over complete width. Now when I swipe of move my mouse around I ...
26
votes
5answers
4k views

In 2D, how do I efficiently find the nearest object to a point?

I have a sizable game engine and I'd like a feature for finding the nearest of a list of points. I could simply use the Pythagorean theorem to find each distance and choose the minimum one, but that ...
0
votes
1answer
1k views

Slope polygon collider 2D causing box collider 2D to 'bump' while sliding on it

I'm doing procedural terrain generation. So far I've created the mesh, and attached a 2D polygon collider to it. The terrain is made up of hills going up and down. After doing so, I put a 2D rigid ...
19
votes
3answers
2k views

Best way to store game-wide variables

I have an options screen for things like difficulty, resolution, full-screen, etc., but I'm struggling to find the "best" way to store/obtain these variables at run-time. Currently, I've implemented ...
0
votes
1answer
113 views

Why my dynamically generated Sprites overlap?

I'm trying to dynamically generate scene representing chess board made from sprites. I'm using two textures for these: - pieces.png (taken from here: ...
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vote
1answer
197 views

What is the correct multiplication order for a 2D matrix?

I'm currently trying to create a camera and entity/model matrix for my 2D game similar to that of Unity3D. I've already tried to find answers to this question on stackoverflow/gamedev but i couldn't ...
5
votes
1answer
956 views

Unity3D - How to tessellate 2D sprites?

I use dynamic vertex lighting on 2D sprites. On larger sprites the lighting is uglier than on smaller ones. This is because every sprite is just a quad of two triangles. Not enough vertices there for ...
2
votes
1answer
57 views

How do I render an object's position trail of a constant length?

I want to show a trail of the last points that the object has been in, but I want that trail to always be a certain length, regardless of the object's speed. How can I do that? At the moment, I ...
1
vote
1answer
16 views

Monogame - stopping a custom shader (drawable game component) when inside another drawable game component [closed]

I have run into a bit of trouble when using a custom shader (gaussian effect) within another drawable game component, as I cant figure out how to break out of the draw method, so the effect is applied ...
0
votes
0answers
42 views

2D Collisions side detection

I've been working on a 2D collision system for my games and came up with something. I need the collisions to check against any sized rectangles. I understand how to check for overlapping rectangles ...
2
votes
1answer
700 views

What is AABBvsAABB Collision detection?

Currently studying Game Engineering at university and my lecturer has asked us to implement a collision manager. He asks us to use AABBvsAABB to build it, so then we can add the physics. My question ...
5
votes
1answer
249 views

Physics/Logic behind self-bounce

What would a ball look like when it makes itself bounce. Say, for example that the ball had its own "inner power", was made out of (mostly) rubber, and pulled the top of itself inward and then ...
2
votes
1answer
399 views

Unity 2D detect if swipe goes through an object

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 ...
1
vote
2answers
398 views

How to add a UI Text for keeping Score in Unity 5

My Problem is simple I want to show scores on my game. The examples on internet are good but in Unity 5 there are no GUI elements but instead these are now UI elements. I was following this example: ...
0
votes
2answers
105 views

How to make a gameobject Scale up from another GameObject script

hi there im having a rought time with this code, trying to make a gameobject grow in scale from touching this one, and when a set amount of scale is reached destroy this game object ( the one who ...
1
vote
0answers
49 views

Create a 2D orbit trajectory like in angry birds space and a circular orbit

I am working on a 2D game, and I am working on adding some space physics : I need to find a way to create a circular orbit and an orbit like angry birds space ( the spiral trajectory ) . So there is 2 ...
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vote
1answer
60 views

Unity 2D: Sprites/Diffuse is making my character weird, like an antialias

i'm trying to put light and shadows on my 2D character but when i set the material on it to Sprites/Diffuse, it's kinda putting a strange smooth on my pixels. Without diffuse: With diffuse: And ...
0
votes
2answers
124 views

Is it possible to use one if statement for each level scene?

I'm working on a platform game where you as a player have to collect logs, to keep on all the fires in the level. Each campfire has a timer, which ensures that every x number of seconds the animation ...
-1
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0answers
53 views

How should I structure game flow (2D sidescroller in C++)? [on hold]

My question is more specific than the title implies but seemed to long to fully expand in it: My conundrum is whether responding to game events (i.e a collision with solid geometry, picking up items, ...
2
votes
1answer
27 views

Java Libgdx: How do you add cells to a TiledMap?

I'm trying to make a Side-Scrolling game that will allow you to place/remove tiles. I'm using the TileMap Editor to render the custom Tilemap but is there any way to add tiles? I have it where I can ...
0
votes
2answers
2k views

How do I add an image inside a rectangle or a circle in JavaFX?

Suppose we have a rectangle called r Rectangle r = new Rectangle(40, 20); and an image called image Image image = new Image("...src for image"); How do I fit the image inside the rectangle? ...
0
votes
1answer
46 views

Any way to visualize how will game objects look on different screens?

After completing my game and sending it to a bunch of friends with different devices, they complained about how some game buttons were too small. (I have developped a touchscreen game but after ...
0
votes
1answer
42 views

Unity 2D: Change one instanced prefab then make all the others on the scene like it

I want to get this thing working: I have a prefab with coins, some obstacles and enemies, and i want it to be instantiated each time the player got to the right or left on the stage, to make the stage ...
0
votes
1answer
54 views

Align SpriteText position

i have this function which aligns text. static function AlignTxt(obj : GameObject, txtAnchor : SpriteText.Anchor_Pos, txtAlign : SpriteText.Alignment_Type) { ...
0
votes
1answer
220 views

Grid collision - finding the location of an entity in each box

I am trying to implement grid-based collision in a 2d game with moving circles. The canvas is 400x400 pixels. Below you can see the code for my Grid class. What I want it to do is check inside which ...
0
votes
1answer
28 views

How to modify the Unity sprite renderer (or create a custom one) that can display the sprites on the X-Z plane?

Prefix: I am NOT trying to rotate a sprite 90 degrees by it's transform, this changes what is up/down and forward/backwards for the object. I need the sprite displayed on the X-Z plane in comparison ...
1
vote
2answers
63 views

How can I detect a perfect passageway for collision detection?

The problem is when I move diagonal it moves fractions of units and therefore my coordinates might be a fraction of a unit say (40,400) might be actually (40.12,400.40) but another problem is my pink ...
1
vote
0answers
23 views

2D Polygon Collision push direction with large polygons

I have a collision detection/resolution implementation that uses the Separating Axis Theorem. Detection and such works perfectly fine, as well as resolution for most objects/shapes in my game. ...
0
votes
0answers
46 views

Creating a 2D game on the X-Z plane instead of the X-Y plane in Unity, any adverse effects or challenges with this?

After coming to the realization that some things I wish to do in a 2D RTS are easier to do on the X-Z plane instead of the default X-Y plane, I'm considering moving my game over to the other plane. ...
0
votes
1answer
57 views

How to determine whether a given line intercepts another

I have a collection of lines: List<Line> _lines; Each has the properties: X1, X2, Y1, Y2 How can I determine whether any given line in the list (Line[n]) intercepts, at any point, any other ...
0
votes
1answer
65 views

How to bounce the player away after attack by enemies?

I creating a 2d platform game. I would like to bounce the player away after hit by the enemy, so the user get another feedback beside the sound effect. How can I achieve my wish? Use the following ...
0
votes
1answer
46 views

2d Collision detection response equation doesn't work

I am currently doing some game engine programming as a hobby. I have been working on getting the collision detection working for a while now, and I'm at my wits end with it. I started with this ...
0
votes
1answer
30 views

Why is each column being shifted down the X value of the column in my 2D Data Structure?

I have a two 2-dimensional arrays. One of which stores characters from a text file, and the other stores pointers to instances of Blocks. For some reason, in either of the arrays (I'm not sure which), ...
0
votes
1answer
89 views

Trying to add a feature to my (basic) level parsing algorithm - not sure how to (JAVA)

Right now this method goes through a list of GameObjects (e.g. JetPack, Platform) with their respective x and y positions in a text file called level1.txt: platform 840 280 platform 1130 280 coin ...
-2
votes
0answers
15 views

Search an artist with a comic style like Angry Birds [duplicate]

Hey im searching an artist for my new mobile game. The problem is i want this comic style like angry birds but i cant find anything like that on devianart and other sites. Most of the arts are in ...
0
votes
1answer
38 views

Unity C# 2D Platformer Main Camera should stop on sides of level

I've been working on a 2D Platformer and i succeeded in setting up a script for my Main Camera to follow my Player gameobject using transform positions. Now when my character is near the sides (or ...
0
votes
0answers
18 views

C# Pathfinding in 2d array (procedural generation) [duplicate]

I have the following random example data in a 2d array 030 300 030 003 The 3 represents a room, the 0 represents its an empty block and 1 represents a corridor. Now i want for example the following ...
1
vote
2answers
45 views

PRNG/Encripting Algorithum that returns the same number if given the same input?

I've been trying to find an algorithm that will take in an x value, a y value, and a seed value and then spit out a number between 0 and 255 (or an int that I can cut up into bytes). I want to be able ...
-2
votes
2answers
59 views

In Unity, how do I make the camera follow a character?

When my character moves, I want the camera to follow them, such that the character always stays in the middle of the view. How do I do that in Unity? Here's my code right now: using UnityEngine; ...
1
vote
1answer
54 views

How to change an int value in the Unity editor

The player of my game can collect logs and can use them for hold on the fires. Each fire has its own status. So one is off and the other one is for 50% on. I created a public int inside my script ...
1
vote
1answer
51 views

Move 2d tank with independently controlled treads

I have made a tank object that knows its position, speed, rotation, and a double value ranging from 1.0 to -1.0 for each tread. I want it to move base on those values. For example, if the value for ...
0
votes
1answer
37 views

Unity problems with OnTriggerStay and Input.GetKeyDown

Background information Some weeks ago, I start by creating my own platform game. You control a character, that can collect logs and should hold all the campfires on in the game. When the user has ...
0
votes
1answer
92 views

How to detect the edge of a platform?

I have create a enemy AI script. These enemies are animals in my game. What I want is that the enemy can detect the edges of a platform. using UnityEngine; using System.Collections; public class ...