Flat two-dimensional space. Positions represented with `x`, `y` coordinates.

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0
votes
0answers
27 views

convert 2d pt into non-affine coordinate system

Say I have a coordinate system that goes from (0,0) to (1,1). We'll call this screen_space. Within this coordinate system, I have 4 points that I would like to define another coordinate system. One ...
0
votes
1answer
70 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), ...
-1
votes
2answers
2k views

How to make a map [closed]

For school my group and I are going to make a 2d turn based strategy game on android. We are trying to make a simple version of Advanced Wars (Gameplay). But we don't really know how to make the ...
3
votes
1answer
1k views

How do I make a 2D character aim their gun toward the mouse?

Heli Attack is a perfect example of the shooting mechanic I'd like. The character aims perpetually toward the mouse. What's going on here? From what I've read so far, you could separate the arm and ...
7
votes
2answers
898 views

Hills in a topdown game

I'm making a top down rpg game and was wondering if it was possible to show hills on a map instead of having everything completely flat. I've thought about changing to an isometric view, but if it can ...
4
votes
1answer
1k views

Implementing jumping and heightmaps in 2D RPG/Adventure style games?

I've been putting together, albeit slowly, a traditional style game engine in flash/AS3 along the lines of Alundra/Final Fantasy 3/etc etc.. Everything so far is working smoothly (maps from XML data, ...
2
votes
1answer
349 views

How do games using physic engines for 2d games handle platform corners?

I have seen games like latest "2'5D" sonics that handle collision detection at platform corners pretty well. The problem I'm having is that my game uses an ellipsoid as my player's body to let it move ...
3
votes
5answers
953 views

XNA 2D Spritesheet drawing rendering problem

I'm making a tile-based game, using one spritesheet containing all tile graphics. Each tile has a size of 32x32 pixels. The main problem is: when I draw the tile to the screen, if the tile position ...
47
votes
3answers
12k views

How do I create 2D water with dynamic waves?

New Super Mario Bros has really cool 2D water that I'd like to learn how to create. Here's a video showing it. An illustrative part: Things hitting the water create waves. There are also constant ...
1
vote
1answer
65 views

How to detect collision position and that position's texture color in Unity?

I have a prefab and I use Circlecollider2D for physics operations. I want to detect the color of the contact position of the collided objects ? Is is possible by using Unity's collider classes ?
0
votes
1answer
45 views

Can't move character at all in unity basic platformer guide

so, I followed below tutorial. https://unity3d.com/learn/tutorials/modules/beginner/live-training-archive/creating-a-basic-platformer-game Going well until 18:50 (video time in tutorial), when the ...
0
votes
1answer
73 views

Monogame / XNA - Multple 2D Cameras (Rectangle) on screen

I recently started building a simple 2D roguelike game using Monogame 3.4. I was keen on building the game "engine" myself as I saw it as a fun learning curve. Monogame was pretty much the best option ...
0
votes
1answer
37 views

How to correctly draw a 2D polygon in Unity

I'm trying to draw a 2D polygon using GL.Line; however I'm not getting a polygon but separated lines instead. In the example below, I would expect a rectangle formed by the spheres: My code is the ...
2
votes
1answer
249 views

What is wrong with my 2D orbit calculation?

I am working on a 2D game, and I am working on adding some space physics, so I need to find a way to create a circular orbit. I want to make my game object move on a circular way around a planet. I'm ...
1
vote
1answer
75 views

How to target moving object in 2D game

I am working on targeting system for 2D game. Two objects move in space. Each one have Position and Velocity vector. Ship object shoots moving objects in space. Ship can shoot in any direction, but ...
0
votes
4answers
862 views

OpenGL 2D Depth Perception

I have a 2D RPG game written in Java using LWJGL. All works fine, but at the moment I'm having trouble deciding what the best way to do depth perception is. So , for example, if the player goes in ...
0
votes
1answer
27 views

Is it possible in Unity to Flip a 2D Sprite Without Flipping the Object it is Assigned to?

I 'built' (followed a tutorial) on a collision detection system, and when I flip the object to go left and right the collision messes up. So I have three options; find a way to modify the collision ...
0
votes
2answers
470 views

Wall jumping collision detection anomaly

I'm creating a game where the player ascends a tower by wall jumping his way to the top. When the player has collided with the right wall they can only jump left and vice versa. Here is my current ...
1
vote
2answers
79 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 ...
8
votes
0answers
128 views

How can I implement lights & shadows in a multi-layer 2d tilemap?

I am in the process of writing an isometric game from scratch, and I'd like to know how/if I can add lights and shadows. The code I have so far can be found here, but it should be enough to know that ...
37
votes
6answers
6k views

How would you handle different aspect ratios in a 2d platformer?

A long time ago, 4:3 was pretty much the only apect ratio you would find on a PC. Today the most common one is 16:10, but most new monitors (especially laptops) are 16:9 I'm writing a 2D platformer, ...
0
votes
2answers
367 views

Basic 2d platform collision detection algorithm has a slight bug (Java)

I'm trying to implement collision detection between Player (the main character) and a Platform. They are both modelled as rectangles; when player hits the side of a platform he should bounce off it ...
3
votes
1answer
184 views

How do I make my main character move towards an object? LibGDX/Java

What I want to happen is for my player to bounce from spring to another. For example take the illustration below: Here's my code (what I've tried to do so far). This gets called in an ...
0
votes
0answers
14 views

How to make multiple characters with similar design [duplicate]

I am making a 2d platformer RPG game and I would like to create a character creation system that allows you to create your character as you please in the beginning. Since I want at least 10 different ...
0
votes
1answer
59 views

Rotation and timer at the same time

I have a project where I flip a card after 5 seconds, then I want to start a countdown timer of x seconds. After x seconds the card flips again. I found a good example for the timer here, but that ...
6
votes
2answers
542 views

A* pathfinding for dynamic obstacles and player made blockages?

Hi I'm creating a TD in Unity 5 and need some help with my Pathfinding. I'm going to use Arons A* pathfinding for my AI which enables me to use dynamic objects and update the path during run-time. ...
0
votes
3answers
124 views

Pathfinding to find the route to nearest resource in 2D grid

The setting is a game in a 2D gridlike labyrinth/maze. I'm looking at pathfinding algorithms such as A* and Dijkstra. I can't figure out how to have my game characters find the nearest resources. All ...
0
votes
1answer
29 views

Rotating A 2D Cannon Based On Mouse Position [duplicate]

I'm creating a game like bubble shooter, I have a cannon which is in the image bellow: I want to rotate the cannon based on mouse position. So far I tried various solutions I found over the web but ...
0
votes
1answer
83 views

How does orbital math work?

I'm writing a 2d space game, and I want the players to be able to 'orbit' objects and other players (if they're fast enough, of course), but I'm having trouble coming up with the right way to think ...
2
votes
1answer
94 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 ...
2
votes
2answers
28 views

How to instantiate a sprite from a sprite sheet using script in unity?

We are creating a 2D top down rpg, and we have multiple textures, and we need to be able to change which sprite sheet its reading from in order to change the look of the walls and floor in each room. ...
0
votes
2answers
303 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
65 views

Find alternate shortest paths in Unity

I'm developing a game in Unity. It's a simple game where the rocket has to reach the point where the player touches on the screen. The movement of the rocket is physics based. When the rocket goes off ...
0
votes
1answer
199 views

Adding a small slide when player releases left/right key

The aim is for the player object to slow down and stop instead of just stopping dead. The following codes works ok when the player is not jumping, but gets stuck in an object if the player is in the ...
1
vote
1answer
51 views

2D grid based game merging boxes

Basically what i have at the moment is a tile based game with a grid containing a number of colored cells. this is what i've done so far The prinipal idea of the game is that the user has to ...
1
vote
1answer
935 views

Spritekit - gradually apply force vector in different direction (space ship turning)

I have a space ship that I'm applying a force vector to using a joystick for control. I would like this to smoothly fly around when I'm switching directions.. Exactly like minisquadron if you've ...
0
votes
1answer
24 views

Unity2D Sprite gone / not visible when flipped using Vector3.x

I have create game object with code using UnityEngine; using System.Collections; public class CharacterBehaviour : MonoBehaviour { private bool facingRight = true; private float moveDirection = 0; ...
0
votes
0answers
30 views

Faking Perspective/Depth using 3D images converted to 2D sprites - Can't work it out!

after a lot of searching/reading/viewing old school game videos I am still unable to work out how to achieve the effect I am after. I am currently working on a 2D "overhead view" sci-fi RPG, using a ...
0
votes
2answers
90 views

2D Coordinate Based Game [duplicate]

I want to make a game for Android that has a 10x10 Grid Plane as UI.In this game users going to touch on a grid and tihs grid will be painted. My question is how do I understand which gird or tile ...
0
votes
0answers
30 views

2D sprite making tool for huge project?

I recently bought spriter 2D but it was a disaster, it is not a finished product at all and i encountered so many bugs and crashes with it, so please don't suggest it. I am looking for a 2D sprite ...
0
votes
1answer
72 views

How to create 2D shadows and lightning?

How do I create shadows and lights in a 2D top down perspective game? I want to achieve an effect similar to this game (also made in unity) where some objects like a torch, different sprites and the ...
-4
votes
0answers
54 views

Inspiration for games! [closed]

Ok, so I'm stuck on finding inspiration for a game. I have this idea in the back of my head that has been spinning around for a while now. It was something to do with aliens, super futuristic weapons, ...
0
votes
1answer
32 views

Determine facing direction mecanim 2d movement

I'm using this script to move my character in my 2d world: public float speed; //Movementspeed public Rigidbody2D rbody; Animator anim; void Start () { rbody = ...
0
votes
2answers
481 views

Basic C# Script in Unity3D for firing a bullet (not working)

working on a 2D top-down view game. Im trying to get my player to fire a bullet when spacebar is pressed. I added a component to my player (a bullet sprite) and placed it under his gun (so you can't ...
5
votes
1answer
394 views

Why do my game objects jitter when moving the camera?

I'm moving from Qt Widgets' QGraphicsScene to Qt Quick's QQuickItem for rendering my game objects. One of the things this involves is setting up a scene and the view onto that scene, as this was ...
1
vote
3answers
74 views

Collision Detection/Response Issues in Unity

Sprite A: Box Collider 2D and Rigidbody 2D. Sprite B: Box Collider 2D. Both sprites have a Sprites/Default material with Pixel Snap enabled. The textures being used are set to Truecolor Format and ...
1
vote
1answer
96 views

2D World - How to represent my Game Objects graphically?

I want to code my own topdown 2D game with SFML+C++ that later shall have multiplayer functionality. Therefor I want to seperate the graphical and logical Parts of my game. All of my ingame Objects ...
0
votes
1answer
34 views

Unity tiles with wierd border flickering when moving horizontal 2D

I recently made some Tiles using a program called Pyxel Edit to create some placeholder graphics. The problem I'm having is that when I move the camera horizontal the edge of the tiles starts to ...
0
votes
1answer
75 views

Touchscript: multiple overlapping colliders

Im building a tower defense game on unity and would like to allow the player to pan the camera on a large map. I am using touchscript to handle the touches. I made a testing project with the ...
6
votes
2answers
2k views

How to calculate the exit speed of ball bouncing off a solid surface

Hey all, I am working on a simple game to include some rigid body dynamics, involving placing (moving & rotating) some springs to bounce a falling ball into a target area. My problem is correctly ...