3
votes
1answer
213 views

How to solve the big video memory requirements in 2d game

We are developing 2d game (Factorio) in allegro C/C++ and we are facing the problem with increasing video memory requirements as the game content increases. What we currently do is, that we gather ...
1
vote
1answer
70 views

Why does rendering a gradiented shape leave gaps?

Sometimes when I am drawing objects that aren't 'linear' (e.g. rounded edges, circles, ellipses, diagonal lines, etc) I this weird effect of some pixels at certain points not getting drawn. It's ...
2
votes
2answers
117 views

Collision detection - make sure the player touches the object exactly

I know this is really something I should be able to figure out on my own, but a solution is evading me. Okay, here are a few relevant parts of my code. bool Game::Col(int x1,int y1,int w1,int h1, ...
0
votes
2answers
240 views

What do I need to implement a side-scrolling screen, like in classic platformer games?

I'm working on a game in Allegro for C++. I'm stumped about how to scroll the screen. I'm trying to make the screen scroll with the player, as it does in classic side-scroller games such as Super ...
0
votes
0answers
17 views

How to Point sprite's direction towards Mouse or an Object [duplicate]

I need some help with rotating sprites towards the mouse. I'm currently using the library allegro 5.XX. The rotation of the sprite works but it's constantly inaccurate. It's always a few angles off ...
2
votes
2answers
145 views

Should I create generic bitmap/sound/et cetera wrappers for Allegro?

Basically, I have been writing a game in C++ using Allegro. I mostly just use the library to draw bitmaps, draw text, and play audio. My main concern as the game continues to grow code-wise, is that ...
1
vote
2answers
178 views

Large-Scale 2D worlds with a “world texture” to draw to causing memory issues

Background: I've currently implemented a world class where the dimensions are provided in meters and those dimensions are translated to pixel values for an allegro (4.x) memory bitmap to be created ...
0
votes
1answer
111 views

Removing drawn Allegro texts and primitives

I'm working on a game with Allegro 5 that has a loop. I'd like to make the program write onto the screen, how much time the loop has ended. These are the rounds of a turn-based game, obviously. I use ...
0
votes
1answer
142 views

Linking error when compiling Allegro example

I am currently learning about game development tools and decided to use Allegro and OpenGL for starters. I've run into some problems in getting examples to compile though. It seems the allergro.h ...
-1
votes
3answers
508 views

How can I have multiple layers in my map array?

How do I load Levels in my game, as in Layer 1 would be Objects, Layer 2 would be Characters and so on. I only need 3 layers, and they will all be put on top of each other. i.e having a flower with a ...
0
votes
1answer
307 views

Allegro 5 compiling with GCC on mac [closed]

I have the following code from a tutorial and i am trying to compile it on a mac using g++/gcc however every time it complains about the native dialog but i am referencing the library correctly i ...
2
votes
2answers
737 views

How to slow down a sprite that updates every frame?

I am going through a Allegro 5 tutorial which has a game loop. There is also a variable "active" which determines if a key is being held down. Thus if the left key is being held down active is on and ...
0
votes
1answer
755 views

“LNK2001: unresolved external symbol” when trying to build my program

I get the following error(s) on my program that captures the mouse and then draws a line. Errors: 1>------ Build started: Project: Capture_Mouse_Line, Configuration: Debug Win32 ------ 1> ...
3
votes
1answer
867 views

Why is the framerate (fps) capped at 60?

ISSUE I recently moved a project from my laptop to my desktop(machine info below). On my laptop the exact same code displays the fps(and ms/f) correctly. On my desktop it does not. What I mean by ...
2
votes
1answer
475 views

Space invaders clone not moving properly

I'm trying to make a basic space invaders clone in allegro 5, I've got my game set up, basic events and such, here is the code: #include <allegro5/allegro.h> #include ...
1
vote
0answers
239 views

Full screen shader causes performance hit

I basically want to have a shader run that can do something like toon shading, or grayscale the whole screen, or radial lighting. To do this, I create a new bitmap each time the display resizes that ...
1
vote
2answers
2k views

Dealing with keyboard input

In game design how should keyboard input be handled and why? Do i A: check the state of keys in the main loop each iteration? B: Read key down and key up events from the event queue. Im using ...
4
votes
3answers
411 views

Current library situation [closed]

Allright so I've been doing some searches, here what I got: SDL: It is a standard, very mature but very old. (I got posts of late 2009 where they were still waiting for the 1.3 to come up...we are ...
11
votes
1answer
960 views

How can I draw an arrow at the edge of the screen pointing to an object that is off screen?

I am wishing to do what is described in this topic: http://www.allegro.cc/forums/print-thread/283220 I have attempted a variety of the methods mentioned here. First I tried to use the method ...
0
votes
1answer
481 views

Allegro Game Won't Fire 2D Projectile

To begin with I am developing a PSP application so I have no clue how to debug a PSP application. That doesn't mean I do not know how debug period. Anyway, when I run the game everything runs fine but ...
1
vote
0answers
572 views

Getting started with game dev- allegro and C/C++ [closed]

Was considering getting started with Allegro for learning game development, and I was wondering (yes, sorry) whether I should go with C or C++ :P. I know C++ is way more common in the game dev world ...
-1
votes
1answer
2k views

What is the best engine for my first serious 2d game? [closed]

What game engine/graphics engine should I use for my first indie game? I'd like to add that this is not my first game, I've previously used Allegro for 2d development (pong, chess and stuff). I am ...