SFML community forums
General => SFML projects => Topic started by: Naufr4g0 on September 08, 2011, 02:15:42 pm
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(http://i53.tinypic.com/2m4ws39.png)
In the last year I have spent a lot of time in game development, using the SFML libraries that I find very well done.
I began to write this game in 2010 with another graphic library, but eventually I came to SFML, writing the code from scratch.
The game is a simple time-waster and your goal is to avoid the falling rocks, surviving as much as possible and making the highest score you can do.
You can also do combos avoiding more rocks in sequence.
The highest level of difficulty is selected on menu screen, the highest rate of falling rocks you obtain in the game.
Press 'Left-CTRL' key to activate Bullet-Time, so you can more easily avoid falling rocks.
The game is not complete. I want to put some other obstacles like arrows, shurikens and bombs. I want to make the ground deformable, too, so the game can be more varied.
Consider the game I linked below as a demo.
Let me know if you have some issues to start the game.
Every kind of comment is welcome.
I hope you enjoy it!
Controls:
Arrow keys to move
Left-CTRL to activate Bullet-Time
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F1 to take a screenshot
M to toggle music mute
space to restart game when ninja falls in the water
Download
Download Falling Rocks v0.5.3 (http://bit.ly/qaETfb) (for windows)
Download Falling Rocks v0.5.2 (http://bit.ly/nDceeA)
Download Falling Rocks v0.5.1d (http://bit.ly/pEuu0n)
Video
http://www.youtube.com/watch?v=yjfamlt2ZXg (http://www.youtube.com/watch?v=yjfamlt2ZXg)
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Simple and addictive :D
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Simple and addictive :D
I'm happy you like it! =)
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I'm happy you like it! =)
Like ? No.. I Love It !
As if my best score in Impossible Mode is 426... That's so hard...
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Like ? No.. I Love It !
As if my best score in Impossible Mode is 426... That's so hard...
=) Post a screenshot if you do a better score! :D
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Very good game! Nice graphics too. I've spent a good half an hour on it!
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You tube video looks very good.
Though on my pc it is unplayable. Your game does not scale motion with time.
Eg say it is meant to work at 30 fps but because my computer is more powerful and gets 90 fps all objects will go 3X faster.
Basically I hit start rocks flying past in a blur then I'm dead in 1 second.
It is weird though because the animated water and the menu select icon seem to animate at the correct speed.
If you need more help on how to implement this just ask. Though I suspect you already know and implemented it for animations anyway.
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That game is fun and addicting. I got 800 some on my first try and now I can't even get close to that on hard! Only suggestion I have is to create a volume / mute option in the menu. :D I tent to ignore game music hehe!
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You tube video looks very good.
Though on my pc it is unplayable. Your game does not scale motion with time.
Eg say it is meant to work at 30 fps but because my computer is more powerful and gets 90 fps all objects will go 3X faster.
Basically I hit start rocks flying past in a blur then I'm dead in 1 second.
It is weird though because the animated water and the menu select icon seem to animate at the correct speed.
If you need more help on how to implement this just ask. Though I suspect you already know and implemented it for animations anyway.
Try to select Vert Sync. = OFF in the Options screen, it should fix the speed issue. :)
This option sets FPS to 60.
Have you set a value for screen vert refresh over 60?
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Try to select Vert Sync. = OFF in the Options screen, it should fix the speed issue. :)
This option sets FPS to 60.
Have you set a value for screen vert refresh over 60?
I actually was using it on a pc at uni.
I tried again at home and with vert sync on and off. It worked perfectly.
Though what I was referring to it will not matter what the frame rate is.
It is discussed here.
http://www.sfml-dev.org/tutorials/1.3/window-time.php
You may have already implemented as I have no issue at home, and a uni computer could have been compromised some how. Though you should know with a glance at that page.
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Love this game! Reached 2100 points in hard mode, after a "almost-hit" combo of 19 or so. :)
It's actually almost too easy to get many points by these combos.
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Very nice game! =)
But as mentioned above there seems to be a speed problem.
With VSync=ON the game is really unplayable, turing it off does fix the issue.
But I don't think it has much to do with FPS, then turnin off VSync would mean the FPS go up and the game gets even faster. Or the setting is just reversed... :lol:
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Bug!
Do you use Window::GetFrametime() to get hardwareindependent speed? Currently the game is running in uberfastforward for me, unplayable. Looks really cool and fun on the video tho!
How to use getframetime?
sf::Uint32 Frametime = Window.GetFrametime();
float Playerspeed = 0.2f;
Player.Move(Playerspeed*Frametime, 0)
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Turned on VSync in ATi CCC, now the game runs fine but everything else lags :S
Edit; Turned off vsync in game(found it lol) and turned off vsync in ATi, now it also runs fine
Edit2: Really fun game, GJ! :D Did you make the graphics/music as well?
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I actually was using it on a pc at uni.
I tried again at home and with vert sync on and off. It worked perfectly.
Though what I was referring to it will not matter what the frame rate is.
It is discussed here.
http://www.sfml-dev.org/tutorials/1.3/window-time.php
You may have already implemented as I have no issue at home, and a uni computer could have been compromised some how. Though you should know with a glance at that page.
I'm aware about the fps issue. As you can see in your own link, it's not so difficult to implement an engine that adapts to any type of refresh.
The only thing I don't like of this solution is that GetFrametime() method doesn't return the same value for each frame when I switch on "sync vert refresh". So sprite movement appears less smooth! :(
Very nice game! =)
But as mentioned above there seems to be a speed problem.
With VSync=ON the game is really unplayable, turing it off does fix the issue.
But I don't think it has much to do with FPS, then turnin off VSync would mean the FPS go up and the game gets even faster. Or the setting is just reversed... :lol:
I know that the option could be misinterpreted, but in the game VSYNC ON means VSYNC ON if graphic card driver vsync option is set to "let the application decide". In other cases fps could be > 60 or virtually infinite if vsync driver option is set to "always off".
VSYNC OFF means framerate limited to 60 without vsync! :)
VSYNC ON, when it works, return smooth movements even if you don't notice it.
Love this game! Reached 2100 points in hard mode, after a "almost-hit" combo of 19 or so. :)
It's actually almost too easy to get many points by these combos.
What's a "almost-hit" combo? Anyway a combo give score only when you don't die within a second. :)
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Turned on VSync in ATi CCC, now the game runs fine but everything else lags :S
Edit; Turned off vsync in game(found it lol) and turned off vsync in ATi, now it also runs fine
Edit2: Really fun game, GJ! :D Did you make the graphics/music as well?
I did the all the graphics (except for background in the in-game screen), menu music is a free song downloaded on modarchive.org. In-game music was created by Giuseppe Navarria. :)
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I'm aware about the fps issue. As you can see in your own link, it's not so difficult to implement an engine that adapts to any type of refresh.
The only thing I don't like of this solution is that GetFrametime() method doesn't return the same value for each frame when I switch on "sync vert refresh". So sprite movement appears less smooth! :(
I would have thought the animation would be more consistent.
Anyway if you are going to have it based off frames rather than time. Cap the frames to an appropriate speed so the experience is consistent for everyone. You can do this just by timing the time it takes to do calculations and draw and then either enter a loop until the timer is greater than 1/60th of a second or sleep for remaining time after doing everything. Not sure which method is better.
Or possibly have
float speed;
if(vsync)
speed=1/60;
else
speed=App.GetFrameTime();
charX+=10*speed;
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Or possibly have
float speed;
if(vsync)
speed=1/60;
else
speed=App.GetFrameTime();
charX+=10*speed;
Unfortunately the problem is more complex.
There is no SFML::RenderWindow method that can read if Vsync was really enabled or not, and there's no other method that can read refresh rate (60hz, 75hz, ecc.) so I can't exactly know the real conditions in which the game runs.
Therefore I think the only way is to use GetFrameTime() method, with the problems that this entails ..
Anyway I could find an opengl function that give me the data I need or build a tester when the game starts..
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I couldn't play your game beacuse of it's so fast! I know I should just set it to use VSync, but come on, this not how it's intended to be!
What problems do you experience when using framerate independent movement and animation? I do the same, for all the thing that should change over time. I don't use clocks - at least not for important stuff - because then the game would not be synchronized well.
Here's some pseudo code for movement:
sf::Vector2Df position(sprite.GetPosition());
sf::Vector2Df shift;
float playerSpeed = 20;
float deltaTime = float(Window.GetFrameTime()) / 1000.f;
if (sf::Keyboard::IsKeyPressed(sf::Keyboard::Left)) shift.x = -deltaTime * playerSpeed;
if (sf::Keyboard::IsKeyPressed(sf::Keyboard::Right))shift.x = deltaTime * playerSpeed;
if (sf::Keyboard::IsKeyPressed(sf::Keyboard::Up)) shift.y = -deltaTime * playerSpeed;
if (sf::Keyboard::IsKeyPressed(sf::Keyboard::Down)) shift.y = deltaTime * playerSpeed;
position += shift;
/* ... Do some collision and response which modifies position vector too ... */
sprite.SetPosition(position);
Here's some for animation:
[animationTimer, animationFrame, maxAnimationFrames are integers declared in your class outside this function]
int animationSpeed = 200; // 1/5 second
animationTimer += int(Window.GetFrameTime());
if (animationTimer > animationSpeed)
{
animationTimer -= animationSpeed;
++animationFrame;
/* With the two lines above actually you can go out of sync
with your animation, but only if the FrameTime is too large.
If it is, the game must be unplayable anyway, so I tend to
ignore this possibility. */
if (animationFrame > maxAnimationFrames) animationFrame = 0;
}
sprite.setAnimationFrame(animationFrame); // This is really pseudo!
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Ok Ok You've convinced me!! =)
I will release soon a framerate independent version of the game.
For me it's not so hard to implement that.
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Easy has it ;) hehe
But for animations you should probably use time instead, thor::Timer is awesome for animations and is what i decided to use after playing around with frametimes.
Why ? The outofsync-because-of-large-frametimes can be a bigger error than you might expect! i.e move your window and the frametime wont update until you release it = very large frametimes.
How to try this with frametime-dependent speeds? hold right-button while moving your window; Voila your player is way gone and might also be stuck/been moving past walls. For collision detection i trace every pixel every frame.
Also, it makes everything way more easier.
For this just have a thor::Timer for your animationclass;
float msperframe = 200;
if(timer.IsExpired()){
NextFrame();
timer.Reset(msperframe, true);
}
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Changes I made:
- The game is finally framerate independent!
- Changed ninja images in menu screen
- Fixed a bug that froze the game for about a tenth of a second when the ninja was hit.
Download Falling Rocks 0.5.2 (http://bit.ly/nDceeA)
Thanks you all! I never decided to change the time-handling without your suggestions.
I think the game now runs smoothly both Vsync is enabled or not. :)
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It worked for me both times, vsync or without, on both versions.
Also, you should add some like challenges randomly throughout the game, such as like rock storm where a lot more rocks fall or something. Just a suggestion :D
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It worked for me both times, vsync or without, on both versions.
Might be your driver settings ;) check CCC if you go with ATI
OnT: You should add a sf::Event::Closed in your event handling, its irritating to not be able to kill the game with the upper right x :P
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OnT: You should add a sf::Event::Closed in your event handling, its irritating to not be able to kill the game with the upper right x :P
Ok, I will add this "feature" in next version. :)
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UPDATE: Version 0.5.3 released!
Changes I made in this version:
- Fixed a bug in acceleration and deceleration of time in bullet-time mode when VSync was disabled (it was too fast).
- You can now quit the game using the X button on the window.
- You can mute music by pressing "M" key.
- You can save more than 1 screenshot. They are named with a sequential number (shot_1.png, shot_2.png, ...)
- Change title name image in the menu screen.
Download link:
Download Falling Rocks v0.5.3 (http://bit.ly/qaETfb)
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I love this game!
The old-school graphics look very good and coherent.
I got 900 points and something.
Feature suggestion: you should store the high score and display it somewhere.
EDIT: got 2029 8)
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I swear to jesus if this game had progression and other silly things to keep our mind thinking we are getting somewhere... You would have an angry birds right here and be making bank right now!
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Funny, even if quite difficult game! :)
I also like the graphics, they somehow remind me of Knytt Stories (http://www.gamesetwatch.com/knytts.jpg).
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Thank you all, I'm glad you enjoyed my work! :)
I love this game!
The old-school graphics look very good and coherent.
I got 900 points and something.
Feature suggestion: you should store the high score and display it somewhere.
This is the next feature I want to add. :)
I swear to jesus if this game had progression and other silly things to keep our mind thinking we are getting somewhere... You would have an angry birds right here and be making bank right now!
I'm working just to add a goal to the game. :)
I want to add a story mode with gradually increasing difficulty levels.
I would also like to create different stages, with different backgrounds and other kinds of falling objects.
Funny, even if quite difficult game! :)
I also like the graphics, they somehow remind me of Knytt Stories (http://www.gamesetwatch.com/knytts.jpg).
I love that game! :D
I'm proud to know that my game have remembered you Knytt Stories.
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Ooooh, I love it! I'm just a huge fan of 8bit graphics and music :D . The combo system is also really cool
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And great concept. Played it 20x already
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And great concept. Played it 20x already
I'm happy you like it! :)
I will soon release a new version of the game with online hi-score. :)
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Really awesome game! I'm addicted to it already.
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Really fun game, you should develop it for the iphone or ipad :P
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Great game! gj!
Really fun game, you should develop it for the iphone or ipad :P
yeah you should export your project on android and ipod/iphone..!
at cost<1€ you become richest!
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Really fun game, you should develop it for the iphone or ipad :P
Great game! gj!
yeah you should export your project on android and ipod/iphone..!
at cost<1€ you become richest!
I think it's a good idea!
I'm running to download Android and iOS SDKs! ;)
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Very nice game.
I just got a score of 1585 in impossible.
Apparently it's not for windows only: it runs perfectly on my linux with wine.
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Very nice game.
I just got a score of 1585 in impossible.
Apparently it's not for windows only: it runs perfectly on my linux with wine.
Good!! Anyway I'm working to release a linux native version. :)
Potentially I can release a MacOS X version, too! But I haven't a Mac. :'D
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Good!! Anyway I'm working to release a linux native version.
Potentially I can release a MacOS X version, too! But I haven't a Mac. :'D
You could try to find a person who has a Mac? There are lots of people in this forum who have Mac, I personally believe that you can find someone who wants to help you.
Sorry about my english :)
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You could try to find a person who has a Mac? There are lots of people in this forum who have Mac, I personally believe that you can find someone who wants to help you.
Sorry about my english :)
I know a lot of people owning a Mac, but...
most of them doesn't know how to compile a source code, for the rest I'm a bit jealous of my code. :'D
Anyway I planned to release the game for linux and mac OS X when it's finished.
Not even my English is perfect, I'm italian! ;)
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You could try to find a person who has a Mac? There are lots of people in this forum who have Mac, I personally believe that you can find someone who wants to help you.
Sorry about my english :)
I know a lot of people owning a Mac, but...
most of them doesn't know how to compile a source code, for the rest I'm a bit jealous of my code. :'D
Anyway I planned to release the game for linux and mac OS X when it's finished.
Not even my English is perfect, I'm italian! ;)
Delfino geloso :lol: :lol:
Comunque bel gioco... vedi di diventare ricco!
Google Translate:
Nice game bro!
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Delfino geloso :lol: :lol:
Comunque bel gioco... vedi di diventare ricco!
Google Translate:
Nice game bro!
Get rich?
If I wanted to get rich I would have already begun to code for the iPhone!
I need an iOS SFML port! ;)
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Delfino geloso :lol: :lol:
Comunque bel gioco... vedi di diventare ricco!
Google Translate:
Nice game bro!
Get rich?
If I wanted to get rich I would have already begun to code for the iPhone!
I need an iOS SFML port! ;)
Ok :(