Simple and Fast Multimedia Library - a free, portable API that provides access to graphics, input, audio, etc.
-1
votes
0answers
17 views
Help setting up Fix Your Time Step!
I'm new to SFML, but come from using XNA, Allegro, and some SDL back in the day.
I've always been use to just having a function that kept my games at 60 FPS lock, and all game play, logic, rendering ...
0
votes
1answer
40 views
What way to draw random sprite from spritesheet in SFML?
I have a spritesheet(900x100) with of different colored shapes each size 100x100. I am trying to code a program such that, after every 2 seconds, one random sprite appears on screen. If I click, it ...
0
votes
1answer
30 views
Drawing in SFML outside of the main function (passing the window over to other fuctions) doesn't work
Why does the drawn Sprite only appear in the Window when drawn from the main-function, but not when drawn from an external function and how can I change this?
class Class {
private:
sf::Sprite ...
0
votes
1answer
72 views
How do I make a sprite fire a bullet in a direction using SFML and C++?
I'm learning game programming for the first time using sfml and c++. I have sucessfully animated my sprite in all four directions watching some video tutorials. But now i want my sprite to fire in a ...
0
votes
1answer
49 views
SFML with Box2D
I'm using SFML and Box2D to create an application that spawns circles, triangles and rectangles at the current mouse point when the user presses the C, T, and R keys. The problem is that the shapes ...
0
votes
0answers
96 views
Finite State Machine Input Handling
I'm working on a 2d Super Smash Bros like fighter in SFML/C++. As a game that handles a lot of inputs and states in a very detailed manner, I'm following the state pattern. So I have an abstract ...
1
vote
1answer
57 views
How can I give the mouse position to my GameObject nicely?
I am making a basic Asteroids game in SFML, and I want the Player ship to always look at the mouse. I have a LookAt(x,y) function which works, but I am not sure how to get the mouse position from the ...
0
votes
1answer
33 views
Control stick map analysis
I'm implementing this map of inputs (from the gamecube title Super Smash Bros. Melee) and translating it into code for my game:
The map is depicted using hardware coordinates (the square shape of ...
0
votes
1answer
46 views
Moving ship towards mouse click not working well in the “boundary deadzone”?
#pragma once
#include "SFML\Graphics.hpp"
#include "ResourceIdentifier.h"
#include "ResourceManager.h"
class Entity {
public:
Entity() : m_angle(0) {
}
float getX() const noexcept { ...
0
votes
0answers
42 views
Spaceship not stopping as intended on boundaries and more?
#pragma once
#include "Globals.h"
#include "ResourceManager.h"
#include "ResourceIdentifier.h"
#include "Entity.h"
#include <iostream>
#include <cmath>
class Shooter : public Entity{
...
1
vote
1answer
98 views
2D simulating light sources (subtract a texture from an other)
I want to simulate a night and day cycle with SFML (plain 2D, no shadows). What I want is to get a smooth transition from day to night, and during night having some lights "on".
So the approach I've ...
1
vote
1answer
50 views
Having trouble writing a controller class
Okay so I'm writing a controller class to expand the SFML joystick library capabilities. Since the different controllers I want to use for this game have different integer values mapped to different ...
1
vote
1answer
190 views
Setting up SFML with CLion on Windows 10
For a school project I am trying to set up SFML on my computer that runs Windows 10. The assignment is developing a small engine, based on SFML, in a few weeks. I am very new to C++, and I am not used ...
0
votes
1answer
31 views
SFML - Difficulty with Rect Motion when using 1028x720 image per frame
Hello their just having a little tediously annoying problem
that I just can't seem to figure out I've tried numerous things
from using for loops on iterators and index values , iterating a index for ...
0
votes
1answer
38 views
Reference sf::RenderWindow from another source file in SFML
In SFML, How would you be able to reference a window in your main.cpp file to another source file? I want to be able to reference the window made in main.cpp from player.cpp, so I can keep everything ...
0
votes
1answer
45 views
Where to put SFML Window in GameStateManager
I have a Pong game using SFML organized after the this tutorial.
This is the UML diagram from the tutorial.
Now I am not sure where I should put my SFML RenderWindow variable (and other things that ...
0
votes
0answers
47 views
SFML game only runs smooth at high framerate (Windows 10)
I am trying to make my game smooth on low and high fps. Right now, it only runs smooth when I don't limit the framerate. If I run it at 60, then my sprite is noticeably "sluggish". I believe this ...
0
votes
1answer
53 views
Handling collisions with objects that use vector of unique pointers
#pragma once
#include "Entity.h"
#include <iostream>
class Projectile : public Entity
{
public:
Projectile() {}
Projectile(float x, float y) {
load("Graphics/Projectile.png");
...
0
votes
1answer
62 views
C++ Pass the reference of the class to a vector inside the constructor [closed]
Okay so i have an extern vector of pointer type 'Entity', and what i want to do is, when a new Entity type class gets constructed it gets pushed back in the vector of Entities, in C# this would be ...
0
votes
0answers
45 views
pollEvent confusion in SFML
I am new to game development, and I am starting with SFML. I am confused with the window.pollEvent() event in this code:
sf::RenderWindow window(sf::VideoMode(800, 600), "SFML");
sf::Event event;
...
0
votes
3answers
125 views
Simple state pattern and circular dependancies
I'm creating a game engine which utilizes a state machine following this GameDevGeek tutorial. My concern is the use of circular dependency which I've heard is bad. The game engine has the game ...
1
vote
2answers
67 views
SFML: Optimizing sf::Text?
I've been noticing that using multiple sf::Text objects has a huge impact on performance.
The difference between using 1 or 4 sf::Text objects can result in almost a 40FPS drop (From 120 to 80).
...
0
votes
0answers
15 views
Collision with top half of paddle vs bottom half [duplicate]
I want to be able to change the way that a ball collides with the top half of the paddle as opposed to its bottom half in SFML.
if (CheckCollision(player1)) {
paddleHit = true;
...
0
votes
0answers
53 views
Game chess sprite not moving across board
#include "Tile.h"
Tile::Tile() : sf::RectangleShape(sf::Vector2f(105, 105)), m_isHighlighted(false)
{
if (!m_cBuffer.loadFromFile("penclick.wav")) {
std::cout << "Failed to load ...
-1
votes
1answer
66 views
Way to check if rectangle contains anything (without passing the “anything” as a parameter)
Using it for a chess game, i want the tiles to be able to tell if anything is on it without the function passing the other object as a parameter so it can see if the tile global bounds of the tile ...
0
votes
2answers
131 views
Limiting framerate with a fixed timestep
UPDATE:
I still need help determining how MAX_UPDATES works. I want my game to be designed in such a way that if the user can't run the game at full speed, it slows down so that no updates are ...
2
votes
1answer
80 views
Correct way of managing player states?
I'm a relatively new programmer attempting to create a simple 2d fighter for fun using the SFML 2 library. As a game with interaction dependent on what the character is doing, using a state system ...
1
vote
1answer
61 views
C++ SFML: Font is clear and the other time blurred
This is my code.
TextRenderer->setString(pCurrentUnit->getCHAR()->getNAME());
TextRenderer->setCharacterSize(16);
TextSanitizer::CenterOrigin(TextRenderer);
TextRenderer-&...
1
vote
1answer
72 views
C++ SFML: Keypressed Event not registering half the time?
I have a very simple event handeling system at the moment.
void LevelScreen::PollInput()
{
sf::Event event;
while (pWindow->pollEvent(event))
{
if (event.type == sf::Event::...
2
votes
0answers
71 views
SFML Raycasting Problem: Textures not displaying propely
I have been lurking on gamedev.Stackexchange for a while now and finally have a question to ask.
I have been working on a simple raycasting engine (like wolfenstein 3d) using the SFML Graphical ...
1
vote
1answer
81 views
What's a way to improve this wall collision detection code to keep objects within a perimeter made of these walls
// Player Collides with Wall
counter1 = 0;
for (iter60 = wallArray.begin(); iter60 != wallArray.end(); iter60++)
{
if (Player1.rect.getGlobalBounds().intersects(...
2
votes
1answer
181 views
Simple 2D Platformer Collision Detection?
I'm relatively new to programming and I am attempting to write a 2d platformer in C++ using the SFML library.
The structure of my code is that I have a Stage class which contains a vector of sf::...
0
votes
1answer
94 views
How to create animation using sprite sheet in C++ and SFML 2.0?
I was wondering how do animation using a sprite sheet. I have a sprite sheet and the size is
height:400
width:601
The code I am using is:
#include<SFML/Graphics.hpp>
#include<iostream>
...
0
votes
1answer
112 views
OpenGL vbo black screen
I am using sfml with opengl and using glew
Here is my code:
// MainWindow.cpp
// window is declared outside in the class it is a sf::Window
#include "MainWindow.h"
#include <iostream>
//#...
1
vote
0answers
32 views
SFML Texture issue removing from memory
I am currently working on loading tmx levels into my game, all is going well and i have layers being loaded textures being loaded and all the data being loaded such as level name, tile sizes etc.
The ...
1
vote
0answers
101 views
Isometric map (2D) - Click detection - Mouse mapping - How to implement it? [duplicate]
I'm building an isometric engine.
I use TILE_SIZE * TILE_SIZE (minecraft like) tiles.
(I'm using 64 * 64 tiles but I can change the number when I want)
I can access for each tiles to this ...
0
votes
0answers
68 views
GUI, interface/listener equivilent in c++
brief intro
I am currently working on a game engine using SFML for a small project, Coming from Java I know a fair bit but unfortunately I have come across a lot of snags (to be expected when ...
1
vote
1answer
91 views
C++ class hierarchy issue [closed]
I am taking the step of moving on from Java over to c++, I have been working on my own custom game engine in java for a while so have a good understanding of polymophism, inheritance etc.
Now to the ...
0
votes
2answers
141 views
2D top down RPG animation architecture problem
I have a problem with my sprite animations right now. I have different animations and sequences for each character so an specific archer might do a ranged attack in which he just plays one animation ...
1
vote
1answer
176 views
QT SFML Integration Trouble
I have been having trouble linking sfml to qt creator I have downloaded the pre-compiled libraries and headers for MINGW on the sfml website here : http://www.sfml-dev.org/download/sfml/2.3.2/
This ...
1
vote
2answers
132 views
Drawing a level in SFML (C++)
So in an attempt to move out of the console environment I have set up an SFML poject in Visual Studio. I am currently trying to draw a stage from a vector within a vector (Matrix?), and the results ...
-1
votes
2answers
63 views
SFML Increasing random falling meteors [closed]
Im working on a small project where i have to creat a 2d game using C++ and SFML (it wasn't my choice to use them)
i did every thing like creating the ship ,shooting ,score counter ..etc
i managed to ...
3
votes
1answer
105 views
Anti-Aliasing + Atlas Texture + VBO = nasty looking artifact
With my research I have found that using a VBO to render graphics is much faster than using depreciated OpenGL. I've found with this that you can't switch textures mid VBO render, so if I have ...
2
votes
1answer
268 views
How i can make better jump to my game? - C++ SFML
So, I ask question about my 2D game, actually it is not game, but it is something like poor game. Well i made moving system and now is time to make jump. I made some kind of gravity with tutorial but ...
0
votes
0answers
30 views
Config SFML in QTCreator with file.pro
I know that are a method with cmake , but i wouldlike config my project in Qtcreator usinig qmake and my doubt is what my file .pro must have for work it ?. I will run in windows , maybe later linux . ...
0
votes
0answers
33 views
Jumping to tiles in y coordinate before displaying all tiles in x?
I am learning how to load in tile maps and I have successfully done so, sort of. The problem is that the program is jumping to the tiles in the y coordinate before displaying all the tiles in the x. ...
0
votes
1answer
131 views
SMFL C++: IntRect intersection not working?
I'm trying to find free space to place rectangles, but even though I check for a collision using .intersects(), it still places them through eachother and somehow doesn't see the intersection ...
1
vote
1answer
889 views
how to port my game for android in sfml [closed]
i am a c++ programmer , and I want to develop games . I chose sfml , because I wanted to see what happens behind the scene better . I have an idea to make , and the desired platform is mobile devices(...
0
votes
1answer
41 views
What causes SFML pollEvent to segfault here?
I'm writing an SFML application in C. Currently sfRenderWindow_pollEvent() and sfRenderWindow_waitEvent() always segfault.
Here's the cleaned code that shows the issue.
sfRenderWindow* window;
...
1
vote
1answer
69 views
How can I avoid referring directly to the state type when transition to new states in a state machine?
I finally found a good way to implement a "stack-of-states" to manage what screen I am on.
Minimal example:
class gameEngine {
public:
//Removes state at the "back" of the stack and puts the ...
