1
vote
1answer
43 views

Why does my camera break mouse position targeting? [duplicate]

I made a short video of this. Basically, when the screen scrolls with the camera, the character begins firing at the incorrect mouse position. You can see where I am clicking the whole time. As we ...
0
votes
1answer
93 views

What are the correct angles in the Top-down perspective?

In the following picture it says that in the Top-down perspective the angles are 90°, but if it would be 90° then you shouldn't see the front of the building and the roof at the same time... So what ...
0
votes
1answer
146 views

XNA 2D Camera, zoom into player

My 2D camera follows the character fine without any zooming. However, when I tried adding a zoom feature using the Matrix.CreateScale(), the camera no longer follows the character properly. public ...
1
vote
1answer
145 views

What is difference between AndEngine's three Cameras

I am new to game development. After observing some AndEngine code snippets, I am trying to figure out which camera would be best suitable for my 2D game. Either it's BoundCamera, SmoothCamera or ...
5
votes
2answers
433 views

Rotating object around moving object/player in 2D

I am trying to implement a camera which rotates around the world around the player. I have found many solutions online to the task of rotating an object about the origin, or about an arbitrary point. ...
0
votes
1answer
134 views

Obtain rectangle indicating 2D world space camera can see

I have a 2D tile based game in XNA, with a moveable camera that can scroll around and zoom. I'm trying to obtain a rectangle which indicates the area, in world space, that my camera is looking at, so ...
0
votes
1answer
142 views

Adding Functionality to a basic Java 2D Camera

Creating a little LoZ inspired game in Java here just to get into the feeling of things (learning CS at my school but the only teacher who's willing to help is travelling for 6-months, so I'm teaching ...
0
votes
2answers
301 views

How do I implement a 2D camera in JPanel?

I'm trying to create a mario-esque game in Java and am at the point of implementing a camera. Following normalocity's example, I understand the difference between the GameWorld and the Camera that ...
1
vote
1answer
623 views

How to set orthgraphic matrix for a 2d camera with zooming?

I'm using ID3DXSprite to draw my sprites and haven't set any kind of camera projection matrix. How to setup an orthographic projection matrix for camera in DirectX which it would be able to support ...
1
vote
1answer
180 views

Creating big scene and little size chasing camera

I would like to create a climb based game, so I need to have a big scene and a camera that cover only a little part of it and chase my player. This image explains easier what I want: How can I do ...
6
votes
2answers
490 views

How do I keep my character centred on screen?

I am making a game similar to Legend of Zelda: Link to the Past (top-down 2D action-adventure). I want the character to stay centred on the screen when he moves. Currently, whenever the player wants ...
1
vote
1answer
676 views

Implementing a camera on HTML5 canvas?

I am trying to work out the best way of implementing a camera in my simple 2d game. The way it is structured at the moment is my game objects all have draw functions, which are passed a canvas ...
11
votes
1answer
460 views

How do I create multiple 2D spotlights?

I'm looking to create a 2D "spotlight" effect that allows a spotlight on multiple entities. I.e., as if several sprites were holding torches. For a single entity (one spotlight), I use a technique ...
9
votes
1answer
2k views

Implementing a camera / viewport to a 2D game

What is the most practical way to implement camera/viewport to a 2D-game? I've read, that I should store the object world position instead of position relative to the screen? Current situation: I ...
-1
votes
1answer
247 views

How to create GoogleMaps-like camera for simple 2D strategy game? [closed]

I am just starting in game development (with web programming background). I want to know how to create 2D game with camera that can zoom in/out and can be moved like map in Google Maps. Could you help ...
2
votes
4answers
2k views

2D camera perspective projection from 3D coordinates — HOW?

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 ...
2
votes
3answers
3k views

How to add a scrolling camera to a 2D Java game?

I am attempting to create a game where the camera follows the player, always making sure the player is in the center of the screen. How would I go about this? This game is a 2D Java game, made with no ...
2
votes
4answers
269 views

Moving camera, or camera with discrete “screens”?

I'm making a game with a friend, but having trouble deciding on a camera style. The basic idea for the game, is having a randomly generated 2-dimensional world, with settlements in it. These ...
4
votes
1answer
326 views

How do I calculate the boundary of the game window after transforming the view?

My Camera class handles zoom, rotation, and of course panning. It's invoked through SpriteBatch.Begin, like so many other XNA 2D camera classes. It calculates the view Matrix like so: public Matrix ...
2
votes
1answer
562 views

OpenGL: Move camera regardless of rotation

For a 2D board game I'd like to move and rotate an orthogonal camera in coordinates given in a reference system (window space), but simply can't get it to work. The idea is that the user can drag the ...
-2
votes
1answer
558 views

Shaky Camera Effect 2D

The camera in my game engine can be modified by following a rectangle properties, that can be scaled, moved and even rotated. I need this effect for the shaking of the screen when a zombie attacks a ...
2
votes
1answer
503 views

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

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 ...
3
votes
2answers
2k views

Viewport / Camera Calculation in 2D Game

we have a 2D game with some sprites and tiles and some kind of camera/viewport, that "moves" around the scene. so far so good, if we wouldn't had some special behaviour for your camera/viewport ...
2
votes
1answer
757 views

Light mask map and camera for static lights in XNA Platformer

Using the example for some basic light maps found here : http://blog.josack.com/2011/07/xna-2d-dynamic-lighting.html, I've managed to create a lightmap texture using individual lightmaps and display ...
2
votes
1answer
772 views

2D Camera Acceleration/Lag

I have a nice camera set up for my 2D xna game. Im wondering how I should make the camera have 'acceleration' or 'lag' so it smoothly follows the player, instead of 'exactly' like mine does now. Im ...
2
votes
1answer
305 views

Draw Bug 2D player Camera

EDIT *Along with the Palindromes helpful response, I found that my bug was because I was calculating the camera coordinates in terms of tiles instead of pixels which caused the irregular motion.* I ...
3
votes
0answers
1k views

OpenGL ES 2.0 Camera advices and general thoughts for a 2D engine [closed]

I'm working on my first 2D OpenGL engine for iOs 5+ using GLKit (that's to say: OpenGL ES 2.0). While I am on a good path and a lot of things are implemented and nicely working, I'd like to share with ...
1
vote
1answer
1k views

OpenGL relative 2D camera

Some days ago, I've felt a need to add a camera to my game, it's a puzzle. That would let me move the board, zoom in and etc. This gave me control to do boards muuuch larger, soon, more complex ...
2
votes
1answer
909 views

Steady zoom on center in LWJGL (Modelview)

I am having a problem in LWJGL with zooming in and out. I am using glScaled(zoom, zoom, 1) before glTranslated. There are 2 problems: 1. The rate of zoom speeds up a lot when zooming out (lower zoom ...
2
votes
3answers
1k views

How do I move a 2D top-down racing camera smoothly and show what's ahead of the player?

I'm trying to make a camera that follows a race car. Right now, I'm smoothing the camera movement out by moving the camera's position a fixed percentage lerp'ed from the camera's position to the car's ...
4
votes
3answers
528 views

Zelda LttP (Super Nintendo) room changes?

I'm trying to make a tile-world adventure game on iOS similar to Zelda Link to the Past on SNES, and one issue I've run into is having my camera move beyond walls revealing the rooms on the other ...
1
vote
1answer
832 views

moving 2D camera

I've got a camera that places the character about a 1/4 way into the screen. The problem I'm having is that when the character moves left the character stays in place now placing the character 3/4 the ...
2
votes
1answer
493 views

Positions are “off” after adding a camera transformation (2d)

Game source code: https://github.com/dnguyen/Aurora I am using this to create a 2D camera: http://www.david-amador.com/2009/10/xna-camera-2d-with-zoom-and-rotation/. After I added the transformation ...
2
votes
1answer
321 views

Does PushButton Game Engine have the notion of a Camera?

I am playing around a bit with the PushButton Engine for game development in Flash and have come across a need for a Camera like the Camera that follows Mario in Mario Games. Flashpunk has a nice ...
2
votes
1answer
445 views

Calculating camera zoom value (top-down)

I need some help in 'camera maths'. I have a birds eye view of two characters. One character is static and the other can move. I would like the camera to always show both characters in full and, in ...
3
votes
1answer
1k views

Obtaining a world point from a screen point with an orthographic projection

I assumed this was a straightforward problem but it has been plaguing me for days. I am creating a 2D game with an orthographic camera. I am using a 3D camera rather than just hacking it because I ...
21
votes
2answers
1k views

Mega Man-style screen scrolling design

The NES classic Mega Man series uses a very specific scrolling technique that I'm having a hard time wrapping my head around implementing. Essentially, the level is divided into "screens" which are ...
3
votes
2answers
2k views

Scrolling 2D sprites on a map with a camera

I'm working on a 2D sprite-based strategy-type game (ok, full disclosure: it's a tower defense game), and I'm having a problem getting the actors to behave correctly when I move the camera. I've got ...