1
Graphics / getting color for rectangle shape
« on: April 26, 2018, 12:21:42 am »
I would like to access the color of a rectangle shape I'm drawing but I don't see anything in the api docs that does that, so how would I do this.
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2
Window / Can't draw vector of pointers to window.
« on: April 10, 2018, 10:24:07 pm »
I've been trying to make a vector of objects, so that I can draw all of them to the screen, so I have been using pointers to do that, but when I try to de-pointer the pointers, it just throws all kinds of errors. Here is my code
3
General / Object vector not re-adding items
« on: April 06, 2018, 02:31:57 am »
I am currently making a snake game in c++, but have encountered this problem. In order to make my snake, I have been using a vector full of objects of rectangles, and drawing them to where my snake goes. However, I have run into a problem. At first, my snake would be infinite as I would keep drawing more rectangles to put into the vector. However, when I try to clear the vector at the bottom of my program, none of the rectangles get redrawn, and I'm left with a tiny snake on the screen.
4
Graphics / movement not being drawn
« on: April 05, 2018, 01:24:47 am »
I am currently making a snake game in sfml, however, whenever i try to change the position of the snake, the snake just stops moving, what is a good fix to this problem?
main.cpp
snake.cpp
main.cpp
#include <SFML/Graphics.hpp>
#include <iostream>
#include "write.h"
#include <SFML/Graphics/Font.hpp>
#include "menu.h"
#include "snake.h"
#include "wait.h"
int main()
{
sf::RenderWindow windows(sf::VideoMode::getDesktopMode(), "SFML works!",sf::Style::None);
sf::Font fonts;
sf::Clock gameClock;
windows.setKeyRepeatEnabled(false);
if(!fonts.loadFromFile("assets/bit.ttf"))
{
std::cerr << "Error loading font" << std::endl;
}
std::string gameScreen = "Main Menu";
Snake snake1(10,100,500,0);
snake1.drawSnake(windows);
while(windows.isOpen())
{
sf::Event event;
while (windows.pollEvent(event))
{
if (event.type == sf::Event::Closed)
{
windows.close();
}
if(event.type == sf::Event::KeyPressed)
{
if(event.key.code == sf::Keyboard::Left)
{
if(gameScreen == "Play Game" )
{
snake1.left();
}
}
}
if(event.key.code == sf::Keyboard::Escape)
{
windows.close();
}
}
if(gameScreen == "Main Menu")
{
gameScreen = buildMenu(fonts,windows);
}
if(gameScreen == "Play Game")
{
snake1.moveForward(windows);
wait(10,gameClock);
}
}
return 0;
}
#include <iostream>
#include "write.h"
#include <SFML/Graphics/Font.hpp>
#include "menu.h"
#include "snake.h"
#include "wait.h"
int main()
{
sf::RenderWindow windows(sf::VideoMode::getDesktopMode(), "SFML works!",sf::Style::None);
sf::Font fonts;
sf::Clock gameClock;
windows.setKeyRepeatEnabled(false);
if(!fonts.loadFromFile("assets/bit.ttf"))
{
std::cerr << "Error loading font" << std::endl;
}
std::string gameScreen = "Main Menu";
Snake snake1(10,100,500,0);
snake1.drawSnake(windows);
while(windows.isOpen())
{
sf::Event event;
while (windows.pollEvent(event))
{
if (event.type == sf::Event::Closed)
{
windows.close();
}
if(event.type == sf::Event::KeyPressed)
{
if(event.key.code == sf::Keyboard::Left)
{
if(gameScreen == "Play Game" )
{
snake1.left();
}
}
}
if(event.key.code == sf::Keyboard::Escape)
{
windows.close();
}
}
if(gameScreen == "Main Menu")
{
gameScreen = buildMenu(fonts,windows);
}
if(gameScreen == "Play Game")
{
snake1.moveForward(windows);
wait(10,gameClock);
}
}
return 0;
}
snake.cpp
#include <SFML/Graphics.hpp>
#include <iostream>
#include <SFML/Graphics/Font.hpp>
#include "snake.h"
#include "wait.h"
#include "math.h"
Snake::Snake( int s, int gx, int gy, int num) //size,color,x,y)
{
size = s;
x = gx;
y=gy;
facing = num;
}
void Snake::drawSnake(sf::RenderWindow& window)
{
sf::RectangleShape rectangle2;
rectangle2.setSize(sf::Vector2f(size*10, 20));
rectangle2.setOutlineColor(sf::Color::Transparent);
rectangle2.setOutlineThickness(10);
rectangle2.setPosition(x,y);
rectangle2.setFillColor(sf::Color::White);
window.clear();
window.draw(rectangle2);
window.display();
}
void Snake::moveForward(sf::RenderWindow& window)
{
Snake::drawSnake(window);
if(cos(facing) == 1)
{
x=x+1;
}
else if(sin(facing) == 1){
y=y+1;
}
else if(cos(facing) == -1)
{
x=x-1;
std::cout << "hola";
}
else if(sin(facing) == -1)
{
y = y-1;
}
}
void Snake::left()
{
facing = facing + 90;
std::cout<<facing;
}
void Snake::right()
{
facing = facing -90;
}
#include <iostream>
#include <SFML/Graphics/Font.hpp>
#include "snake.h"
#include "wait.h"
#include "math.h"
Snake::Snake( int s, int gx, int gy, int num) //size,color,x,y)
{
size = s;
x = gx;
y=gy;
facing = num;
}
void Snake::drawSnake(sf::RenderWindow& window)
{
sf::RectangleShape rectangle2;
rectangle2.setSize(sf::Vector2f(size*10, 20));
rectangle2.setOutlineColor(sf::Color::Transparent);
rectangle2.setOutlineThickness(10);
rectangle2.setPosition(x,y);
rectangle2.setFillColor(sf::Color::White);
window.clear();
window.draw(rectangle2);
window.display();
}
void Snake::moveForward(sf::RenderWindow& window)
{
Snake::drawSnake(window);
if(cos(facing) == 1)
{
x=x+1;
}
else if(sin(facing) == 1){
y=y+1;
}
else if(cos(facing) == -1)
{
x=x-1;
std::cout << "hola";
}
else if(sin(facing) == -1)
{
y = y-1;
}
}
void Snake::left()
{
facing = facing + 90;
std::cout<<facing;
}
void Snake::right()
{
facing = facing -90;
}
5
Window / Drawings not being updated to window
« on: April 04, 2018, 04:37:08 am »
I am trying to create a snake game in SFML, and I can't figure out what is happening because the window is not updating with the new position of the snake. Here is my code.
main.cpp
Snake.cpp
snake.h
main.cpp
#include <SFML/Graphics.hpp>
#include <iostream>
#include "write.h"
#include <SFML/Graphics/Font.hpp>
#include "menu.h"
#include "snake.h"
int main()
{
sf::RenderWindow windows(sf::VideoMode::getDesktopMode(), "SFML works!",sf::Style::None);
sf::Font fonts;
if(!fonts.loadFromFile("assets/bit.ttf"))
{
std::cerr << "Error loading font" << std::endl;
}
std::string gameScreen = "Main Menu";
while(windows.isOpen())
{
sf::Event event;
while (windows.pollEvent(event))
{
if (event.type == sf::Event::Closed)
{
windows.close();
}
if(event.type == sf::Event::KeyPressed)
{
}
if(event.key.code == sf::Keyboard::Escape)
{
windows.close();
}
if(event.type == sf::Event::MouseMoved)
{
}
}
if(gameScreen == "Main Menu")
{
gameScreen = buildMenu(fonts,windows);
}
if(gameScreen == "Play Game")
{
Snake snake1(10,100,500);
snake1.drawSnake(windows);
snake1.moveForward(windows);
}
}
return 0;
}
#include <iostream>
#include "write.h"
#include <SFML/Graphics/Font.hpp>
#include "menu.h"
#include "snake.h"
int main()
{
sf::RenderWindow windows(sf::VideoMode::getDesktopMode(), "SFML works!",sf::Style::None);
sf::Font fonts;
if(!fonts.loadFromFile("assets/bit.ttf"))
{
std::cerr << "Error loading font" << std::endl;
}
std::string gameScreen = "Main Menu";
while(windows.isOpen())
{
sf::Event event;
while (windows.pollEvent(event))
{
if (event.type == sf::Event::Closed)
{
windows.close();
}
if(event.type == sf::Event::KeyPressed)
{
}
if(event.key.code == sf::Keyboard::Escape)
{
windows.close();
}
if(event.type == sf::Event::MouseMoved)
{
}
}
if(gameScreen == "Main Menu")
{
gameScreen = buildMenu(fonts,windows);
}
if(gameScreen == "Play Game")
{
Snake snake1(10,100,500);
snake1.drawSnake(windows);
snake1.moveForward(windows);
}
}
return 0;
}
Snake.cpp
#include <SFML/Graphics.hpp>
#include <iostream>
#include <SFML/Graphics/Font.hpp>
#include "snake.h"
Snake::Snake( int s, int gx, int gy) //size,color,x,y)
{
size = s;
x = gx;
y=gy;
}
void Snake::drawSnake(sf::RenderWindow& window)
{
sf::RectangleShape rectangle2;
rectangle2.setSize(sf::Vector2f(size*10, 20));
rectangle2.setOutlineColor(sf::Color::Transparent);
rectangle2.setOutlineThickness(10);
rectangle2.setPosition(x,y);
rectangle2.setFillColor(sf::Color::White);
window.clear();
window.draw(rectangle2);
window.display();
}
void Snake::moveForward(sf::RenderWindow& window)
{
Snake::drawSnake(window);
x = x+1;
}
#include <iostream>
#include <SFML/Graphics/Font.hpp>
#include "snake.h"
Snake::Snake( int s, int gx, int gy) //size,color,x,y)
{
size = s;
x = gx;
y=gy;
}
void Snake::drawSnake(sf::RenderWindow& window)
{
sf::RectangleShape rectangle2;
rectangle2.setSize(sf::Vector2f(size*10, 20));
rectangle2.setOutlineColor(sf::Color::Transparent);
rectangle2.setOutlineThickness(10);
rectangle2.setPosition(x,y);
rectangle2.setFillColor(sf::Color::White);
window.clear();
window.draw(rectangle2);
window.display();
}
void Snake::moveForward(sf::RenderWindow& window)
{
Snake::drawSnake(window);
x = x+1;
}
snake.h
#ifndef SNAKE_H
#define SNAKE_H
class Snake
{
int size;
int x;
int y;
public:
Snake(int s, int gx,int gy);
void moveForward(sf::RenderWindow& window);
//left();
//right();
void drawSnake(sf::RenderWindow& window);
};
#endif
#define SNAKE_H
class Snake
{
int size;
int x;
int y;
public:
Snake(int s, int gx,int gy);
void moveForward(sf::RenderWindow& window);
//left();
//right();
void drawSnake(sf::RenderWindow& window);
};
#endif
6
System / How to run a function until an event happens
« on: April 03, 2018, 10:18:11 pm »
I'm creating a game, where I'm drawing a main menu, however, when I try and clear the screen in the function that draws the main menu, it just gets redrawn by the game loop. I also can't draw it only once, as my main menu has some gui animations that I want to keep. So how would i redraw the main menu over and over until the user clicks on one of the buttons.
Here is my code
main.cpp
menu.cpp
Here is my code
main.cpp
#include <SFML/Graphics.hpp>
#include <iostream>
#include "write.h"
#include <SFML/Graphics/Font.hpp>
#include "menu.h"
int main()
{
sf::RenderWindow windows(sf::VideoMode::getDesktopMode(), "SFML works!",sf::Style::None);
sf::Font fonts;
if(!fonts.loadFromFile("assets/bit.ttf"))
{
std::cerr << "Error loading font" << std::endl;
}
while (windows.isOpen())
{
sf::Event event;
while (windows.pollEvent(event))
{
if (event.type == sf::Event::Closed)
{
windows.close();
}
if(event.type == sf::Event::KeyPressed)
{
if(event.key.code == sf::Keyboard::Escape)
{
windows.close();
}
}
if(event.type == sf::Event::MouseMoved)
{
}
}
buildMenu(fonts,windows);
}
return 0;
}
#include <iostream>
#include "write.h"
#include <SFML/Graphics/Font.hpp>
#include "menu.h"
int main()
{
sf::RenderWindow windows(sf::VideoMode::getDesktopMode(), "SFML works!",sf::Style::None);
sf::Font fonts;
if(!fonts.loadFromFile("assets/bit.ttf"))
{
std::cerr << "Error loading font" << std::endl;
}
while (windows.isOpen())
{
sf::Event event;
while (windows.pollEvent(event))
{
if (event.type == sf::Event::Closed)
{
windows.close();
}
if(event.type == sf::Event::KeyPressed)
{
if(event.key.code == sf::Keyboard::Escape)
{
windows.close();
}
}
if(event.type == sf::Event::MouseMoved)
{
}
}
buildMenu(fonts,windows);
}
return 0;
}
menu.cpp
#include <SFML/Graphics.hpp>
#include <iostream>
#include "write.h"
#include <SFML/Graphics/Font.hpp>
#include "menu.h"
void buildMenu(sf::Font font, sf::RenderWindow& window)
{
sf::Color dgreen(0x54ff9fff);
sf::Color green(0x240fe2ff);
sf::Color bluegreen(0x00e64dff);
sf::Color red(0xff3436ff);
sf::Color cyan(0x1b990dff);
sf::RectangleShape rectangle2;
rectangle2.setSize(sf::Vector2f(850, 130));
rectangle2.setOutlineColor(dgreen);
rectangle2.setOutlineThickness(10);
rectangle2.setPosition(10, 740 );
rectangle2.setFillColor(sf::Color::Transparent);
sf::RectangleShape rectangle1;
rectangle1.setSize(sf::Vector2f(850, 130));
rectangle1.setOutlineColor(dgreen);
rectangle1.setOutlineThickness(10);
rectangle1.setPosition(10, 540 );
rectangle1.setFillColor(sf::Color::Transparent);
sf::RectangleShape rectangle;
rectangle.setSize(sf::Vector2f(850, 130));
rectangle.setOutlineColor(dgreen);
rectangle.setOutlineThickness(10);
rectangle.setPosition(10, 340 );
rectangle.setFillColor(sf::Color::Transparent);
sf::Vector2i mousepos = sf::Mouse::getPosition();
float x = mousepos.x;
float y = mousepos.y;
if(((850 > x) && (x > 10)) && ((470> y) && (y > 340)))
{
rectangle.setOutlineColor(red);
}
if(((850 > x) && (x > 10)) && ((670> y) && (y > 500)))
{
rectangle1.setOutlineColor(cyan);
}
if(((850 > x) && (x > 10)) && ((870> y) && (y > 700)))
{
rectangle2.setOutlineColor(green);
}
if((((850 > x) && (x > 10)) && ((870> y) && (y > 700)))&& (sf::Mouse::isButtonPressed(sf::Mouse::Left)))
{
window.clear();
window.display();
}
if((((850 > x) && (x > 10)) && ((670> y) && (y > 500)))&& (sf::Mouse::isButtonPressed(sf::Mouse::Left)))
{
window.clear();
window.display();
}
if((((850 > x) && (x > 10)) && ((470> y) && (y > 300)))&& (sf::Mouse::isButtonPressed(sf::Mouse::Left)))
{
window.clear();
window.display();
}
window.clear();
window.draw(print("Snake++", font,250,0,0, bluegreen));
window.draw(print("Play Game",font,150,25,300,bluegreen));
window.draw(print("Settings",font,150,25,500,bluegreen));
window.draw(print("Exit",font,150,25,700,bluegreen));
window.draw(rectangle);
window.draw(rectangle1);
window.draw(rectangle2);
window.display();
}
#include <iostream>
#include "write.h"
#include <SFML/Graphics/Font.hpp>
#include "menu.h"
void buildMenu(sf::Font font, sf::RenderWindow& window)
{
sf::Color dgreen(0x54ff9fff);
sf::Color green(0x240fe2ff);
sf::Color bluegreen(0x00e64dff);
sf::Color red(0xff3436ff);
sf::Color cyan(0x1b990dff);
sf::RectangleShape rectangle2;
rectangle2.setSize(sf::Vector2f(850, 130));
rectangle2.setOutlineColor(dgreen);
rectangle2.setOutlineThickness(10);
rectangle2.setPosition(10, 740 );
rectangle2.setFillColor(sf::Color::Transparent);
sf::RectangleShape rectangle1;
rectangle1.setSize(sf::Vector2f(850, 130));
rectangle1.setOutlineColor(dgreen);
rectangle1.setOutlineThickness(10);
rectangle1.setPosition(10, 540 );
rectangle1.setFillColor(sf::Color::Transparent);
sf::RectangleShape rectangle;
rectangle.setSize(sf::Vector2f(850, 130));
rectangle.setOutlineColor(dgreen);
rectangle.setOutlineThickness(10);
rectangle.setPosition(10, 340 );
rectangle.setFillColor(sf::Color::Transparent);
sf::Vector2i mousepos = sf::Mouse::getPosition();
float x = mousepos.x;
float y = mousepos.y;
if(((850 > x) && (x > 10)) && ((470> y) && (y > 340)))
{
rectangle.setOutlineColor(red);
}
if(((850 > x) && (x > 10)) && ((670> y) && (y > 500)))
{
rectangle1.setOutlineColor(cyan);
}
if(((850 > x) && (x > 10)) && ((870> y) && (y > 700)))
{
rectangle2.setOutlineColor(green);
}
if((((850 > x) && (x > 10)) && ((870> y) && (y > 700)))&& (sf::Mouse::isButtonPressed(sf::Mouse::Left)))
{
window.clear();
window.display();
}
if((((850 > x) && (x > 10)) && ((670> y) && (y > 500)))&& (sf::Mouse::isButtonPressed(sf::Mouse::Left)))
{
window.clear();
window.display();
}
if((((850 > x) && (x > 10)) && ((470> y) && (y > 300)))&& (sf::Mouse::isButtonPressed(sf::Mouse::Left)))
{
window.clear();
window.display();
}
window.clear();
window.draw(print("Snake++", font,250,0,0, bluegreen));
window.draw(print("Play Game",font,150,25,300,bluegreen));
window.draw(print("Settings",font,150,25,500,bluegreen));
window.draw(print("Exit",font,150,25,700,bluegreen));
window.draw(rectangle);
window.draw(rectangle1);
window.draw(rectangle2);
window.display();
}
7
Graphics / Bundling multiple drawable objects into a returnable object
« on: March 31, 2018, 09:46:59 pm »
I am interested in creating a separate function to draw my menu screen in a game I'm making, how would I accomplish this in sfml and what would i need the function to return?
8
Graphics / Window opens then closes really fast
« on: March 23, 2018, 03:00:02 am »
I'm building a game in Sfml, and I want to print text to the display screen easier so I created a function that does it for me, but, whenever I run the function, the window opens then closes really fast, not allowing me to see the results. However, when I don't use the function to print text to the console, nothing happens, I was wondering what would help me resolve this problem
This really should be in the window section, but I can't move the question.
Here is my Code
Main.cpp
write.cpp
This really should be in the window section, but I can't move the question.
Here is my Code
Main.cpp
#include <SFML/Graphics.hpp>
#include <iostream>
#include "write.h"
#include <SFML/Graphics/Font.hpp>
int main()
{
sf::RenderWindow window(sf::VideoMode::getDesktopMode(), "SFML works!");
sf::Font fonts;
if(!fonts.loadFromFile("bit.ttf"))
{
std::cerr << "Error loading font" << std::endl;
return EXIT_SUCCESS;
}
sf::Text word;
word.setFont(fonts);
word.setString("Hello World");
word.setFillColor(sf::Color::Red);
while (window.isOpen())
{
sf::Event event;
while (window.pollEvent(event))
{
if (event.type == sf::Event::Closed)
window.close();
}
window.clear();
window.draw(print("aiden"));
window.display();
}
return 0;
}
write.h#include <iostream>
#include "write.h"
#include <SFML/Graphics/Font.hpp>
int main()
{
sf::RenderWindow window(sf::VideoMode::getDesktopMode(), "SFML works!");
sf::Font fonts;
if(!fonts.loadFromFile("bit.ttf"))
{
std::cerr << "Error loading font" << std::endl;
return EXIT_SUCCESS;
}
sf::Text word;
word.setFont(fonts);
word.setString("Hello World");
word.setFillColor(sf::Color::Red);
while (window.isOpen())
{
sf::Event event;
while (window.pollEvent(event))
{
if (event.type == sf::Event::Closed)
window.close();
}
window.clear();
window.draw(print("aiden"));
window.display();
}
return 0;
}
#ifndef WRITE_H
#define WRITE_H
#include <SFML/Graphics.hpp>
#include <SFML/Graphics/Font.hpp>
sf::Text print(std::string text);
#endif
#define WRITE_H
#include <SFML/Graphics.hpp>
#include <SFML/Graphics/Font.hpp>
sf::Text print(std::string text);
#endif
write.cpp
#include "write.h"
#include <iostream>
#include <SFML/Graphics.hpp>
#include <SFML/Graphics/Font.hpp>
sf::Text print(std::string text) // std::string font)
{
sf::Font fonts;
if(!fonts.loadFromFile("bit.ttf"))
{
std::cerr << "Error loading font" << std::endl;
}
sf::Text word;
word.setFont(fonts);
word.setString(text);
word.setFillColor(sf::Color::White);
return word;
}
#include <iostream>
#include <SFML/Graphics.hpp>
#include <SFML/Graphics/Font.hpp>
sf::Text print(std::string text) // std::string font)
{
sf::Font fonts;
if(!fonts.loadFromFile("bit.ttf"))
{
std::cerr << "Error loading font" << std::endl;
}
sf::Text word;
word.setFont(fonts);
word.setString(text);
word.setFillColor(sf::Color::White);
return word;
}
9
Graphics / Font library not being linked to mingw
« on: March 18, 2018, 01:55:27 am »
Setup
Mingw
Windows 10
Problem
Error undefined reference to `_imp___ZN2sf4Font12loadFromFileERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE'
Can't figure out the problem because the .ttf file is in the folder that the program i'm compiling is in.
Command I used
g++ main.cpp -IC:\Development\SFML-2.3.1\include -LC:\Development\SFML-2.3.1\lib -lsfml-graphics -lsfml-window -lsfml-system -o a.exe
Code
Mingw
Windows 10
Problem
Error undefined reference to `_imp___ZN2sf4Font12loadFromFileERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE'
Can't figure out the problem because the .ttf file is in the folder that the program i'm compiling is in.
Command I used
g++ main.cpp -IC:\Development\SFML-2.3.1\include -LC:\Development\SFML-2.3.1\lib -lsfml-graphics -lsfml-window -lsfml-system -o a.exe
Code
#include <SFML/Graphics.hpp>
#include <iostream>
//#include "intro.h"
int main()
{
sf::RenderWindow Window(sf::VideoMode::getDesktopMode(),"Hello Window");
sf::Font font;
if(!font.loadFromFile("bit.ttf"))
{
std::cout << "No Work";
}
sf::Text text("hello", font);
text.setCharacterSize(30);
text.setStyle(sf::Text::Bold);
text.setColor(sf::Color::Red);
while(Window.isOpen())
{
sf::Event Event;
while(Window.pollEvent(Event))
{
if(Event.type == sf::Event::Closed)
{
Window.close();
}
}
// Declare and load a font
// Create a text
// Draw it
Window.draw(text);
Window.clear(sf::Color());
Window.display();
}
}
#include <iostream>
//#include "intro.h"
int main()
{
sf::RenderWindow Window(sf::VideoMode::getDesktopMode(),"Hello Window");
sf::Font font;
if(!font.loadFromFile("bit.ttf"))
{
std::cout << "No Work";
}
sf::Text text("hello", font);
text.setCharacterSize(30);
text.setStyle(sf::Text::Bold);
text.setColor(sf::Color::Red);
while(Window.isOpen())
{
sf::Event Event;
while(Window.pollEvent(Event))
{
if(Event.type == sf::Event::Closed)
{
Window.close();
}
}
// Declare and load a font
// Create a text
// Draw it
Window.draw(text);
Window.clear(sf::Color());
Window.display();
}
}
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