Allegro is a cross-platform, open source, game programming library, primarily for C and C++ developers.
11
votes
1answer
574 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 ...
5
votes
3answers
297 views
Current library situation
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 ...
3
votes
1answer
628 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
314 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 ...
2
votes
1answer
286 views
How to refresh allegro textprintf_centre_ex text upon keypress?
I'm trying to print the coordinates of a drawn square upon movement. The problem is that the x value doesn't get refreshed on screen.
This is the code I have:
#include <allegro.h>
BITMAP ...
2
votes
1answer
556 views
Allegro 5 Mouse Look
I found good tutorial on how to do mouse look for 2D game here: http://www.atburrow.com/2010/03/08/objects-facing-the-cursor/
My code looks like this:
w = (double)mouse_x - (double)pos_x;
h = ...
2
votes
1answer
218 views
Allegro 5 al_draw_text skips characters
I'm using Allegro 5.0.8 al_draw_text to draw text on a bitmap (backbuffer). However, I've noticed that the first character of the string is always skipped. Moreover, whenever the same character ...
2
votes
2answers
408 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 ...
1
vote
2answers
172 views
Full screen blackout using allegro in codeblocks
I'm very interested in game programming and I'm taking my first steps alone. So I installed allegro. Although Dev-C++ didn't work, Code::Blocks compiled successfully. I started out with this basic ...
1
vote
2answers
1k 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 ...
1
vote
0answers
202 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
0answers
509 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 ...
0
votes
1answer
346 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 ...
0
votes
1answer
57 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 ...
0
votes
1answer
142 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 ...
0
votes
3answers
162 views
Problem with alleg42.dll / program crashes / Allegro & Codeblocks
I'm having a serious problem with allegro. The program should display random pixels on the screen and when I build and run it I get the following error message:
Below is the full code of my program:
...
0
votes
1answer
423 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> ...
0
votes
1answer
28 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
3answers
128 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 ...
-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 ...
-1
votes
1answer
29 views
Can't get game library to compile on Allegro and Code Blocks? [closed]
Basically I'm having a problem with getting an Allegro binding (D + Allegro) to work with Code:Blocks.
I think it's a settings problem, but I'm not sure where.
So here's what I've done so far...
...
-2
votes
2answers
480 views
OpenGL + Allegro. Moving from software drawing X Y to openGL is confusing
Having a fair bit of trouble. I'm used to Allegro and drawing sprites on a bitmap buffer at X Y coords. Now I've started a test project with OpenGL and its weird.
Basically, as far as I know, theirs ...
-2
votes
0answers
36 views
Issues while making some kind of menu [closed]
I made this thing as a part of my program. Language is C++, with Allegro libraries. I want to make it do the next: when clicking, a border appears around one of the two rectangulars.
It happens, but ...
