Messages

1

Graphics / Setting Background Image Without Slowing Down Game.

« on: May 03, 2017, 08:03:04 pm »

Hi guys, my question is that how can we set a Background Image, something in Tank Game, without slowing down the game, i've tried setting it but my game slows down and below is the link to image i want to set as Background. Please
http://wallpaperswide.com/download/military_camouflage_patterns-wallpaper-1366x768.jpg

2

General / Tank Line of Sight

« on: May 01, 2017, 10:19:23 am »

Hi guys, i'm working on a 2D tank game in which i have to find if user tank is in position with enemy tank in x or y plane. Here's my code.

bool Enemy::lineOfSight_HOR()
{
        int x = e_enemySprite.getPosition().x;
        int y = e_enemySprite.getPosition().y;

       
                for (int i = y; i < VideoMode::getDesktopMode().width; i++)
                {
                        if (i == userTankPos->y)
                        {
                                return true;
                                break;
                        }
                }
       
        return false;
}

Buts it's not working properly, enemy tank moves even if y-point of user tank is greater than enemy tank. 

3

General discussions / Artificial Intelligence.

« on: April 29, 2017, 05:57:11 pm »

Hi guys, i'm making a tank game in which i need some type of AI to control my enemy tanks i.e they move on their on and fire on their on, I've never done some thing like this before so i have no idea where to start. If you guys could suggest me something related to Artificial Intelligence to start with i'll be very thankful.

4

Graphics / Re: Rendering objects from different classes to one.

« on: April 28, 2017, 10:52:14 pm »

For loading texture.

void Tank::setSprites()
{
        t_bulletTexture.loadFromFile("bullet.png");
        t_tankTexture.loadFromFile("tank.png");

        t_tankSprite.setTexture(t_tankTexture);

        t_tankSprite.setPosition(t_window.GetWindowSize().x / 2, t_window.GetWindowSize().y / 2);
        t_tankSprite.setOrigin(t_tankTexture.getSize().x / 2, t_tankTexture.getSize().y / 2);
        t_tankSprite.setRotation(360);
}
 

5

Graphics / Rendering objects from different classes to one.

« on: April 28, 2017, 10:00:34 pm »

Hi Guys. i got this problem with with drawing drawables from classes in main class, it does not draw anything accept the window and it's Background Color.

[ Tank.cpp ]

void Tank::Render()
{
        t_window.Draw(t_tankSprite);
        HandleInput();
}

[window.cpp]

void window::Create()
{
        t_window.create({ t_windowSize.x, t_windowSize.y, 32 }, t_windowTitle, Style::Fullscreen);
}

void window::BeginDraw()
{
        t_window.clear(Color(158, 154, 117, 255));
}

void window::EndDraw()
{
        t_window.display();
}

void window::Update()
{
        Event t_event;
        if (t_window.pollEvent(t_event))
        {
                if (t_event.type == Event::Closed || (t_event.type == Event::KeyPressed && t_event.key.code == Keyboard::Escape))
                        t_IsDone = true;
        }

}
 

[ Main.cpp ]

#include <Windows.h>
#include "Tank.h"

#ifndef window_h
#define window_h
#include "window.h"
#endif


using namespace sf;


int CALLBACK WinMain(_In_ HINSTANCE hInstance, _In_ HINSTANCE hPrevInstance, _In_ LPSTR lpCmdLine, _In_ int nCmdShow)
{
        window win;
        win.Setup("Tank Game", Vector2u(1024, 786));
        win.Create();

        Tank tank;

        while (!win.IsDone())
        {
                win.BeginDraw();
                win.Update();

                tank.Render();

                win.EndDraw();
        }
        return 0;
}

6

General / Re: Thread stops the GUI/

« on: April 22, 2017, 07:13:53 am »

Thanks its working now....

7

Graphics / Background slows down the game.

« on: April 21, 2017, 11:21:28 am »

Hi guys, I'm having a problem with my background it's 1024x768 resolution, it slow down my game since it had to be redrawn every frame. What should I do now

8

General / Re: Thread stops the GUI/

« on: April 20, 2017, 10:00:17 pm »

so what i have to do for parallel processing ?

9

General / Thread stops the GUI/

« on: April 20, 2017, 07:21:59 pm »

Hi guys, i'm having trouble with threads, in this code when i start a thread it stops the game for 10 seconds ( the time for reloading ) and then continues.

I'm using startReloading() as a member function in Tank class.

or maybe you can suggest me a different approach

---------------------------------------------------------------

if( reloading == false )
{
          // shoot.
}
else
{
                _reloadTime = _reloadClock.restart();
                reloading = true;

                thread reloadThread(&Tank::startReloading, this);
                reloadThread.join();

}

//...

void Tank::startReloading()
{
        do
        {
                _reloadTime = _reloadClock.getElapsedTime();
                if (_reloadTime.asSeconds() > 10)
                {
                        crntRound = 0;
                        updateAmmoString();
                        reloading = false;
                        break;
                }
        } while (true);
}
 

10

Graphics / how to set background.

« on: April 19, 2017, 08:34:19 am »

Hi guys, i'm having trouble in setting up the background for my tank game, the image 'background.png' just don't show up!!! 
------------------------------------------------------------

// Image size is 1280x1024

        RenderWindow window(VideoMode(1024, 786, 32), "Test 32");

        Texture texture;
        texture.loadFromFile("background.png");
        Sprite sprite;
        Vector2u size = texture.getSize();
        sprite.setTexture(texture);
        sprite.setOrigin(size.x / 2, size.y / 2);

        while (window.isOpen())
        {
                Event e;
                while (window.pollEvent(e))
                {
                        if (e.type == Event::Closed)
                                window.close();
                }
                window.draw(sprite);
                window.display();
        }

11

General / Re: Application hanging up.

« on: April 17, 2017, 07:10:35 pm »

Thank's a lot guys, finally it's working 

12

General / Re: Application hanging up.

« on: April 16, 2017, 08:43:31 pm »

Well i've found a way to fire bullets but the problem is if space bar is pressed it just show long continuous image of my ' bullet '.
-----------------------------------------

#define X_COL 0
#define Y_COL 1
#define EMPTY_CELL -1.0f
RenderWindow window(VideoMode(600, 600, 32), "Test 32");
float ammo[100][2];

int CALLBACK WinMain(_In_ HINSTANCE hInstance, _In_ HINSTANCE hPrevInstance, _In_ LPSTR lpCmdLine, _In_ int nCmdShow)
{
        Texture texture;
        Sprite sprite;
        texture.loadFromFile("bullet.png");
        sprite.setTexture(texture);
        sprite.setPosition(window.getSize().x / 2, window.getSize().y / 2);
        sprite.setOrigin(texture.getSize().x / 2, texture.getSize().y / 2);
        sprite.setRotation(360);

        #pragma region Initialize 'ammo'

        for (int i = 0; i < 100; i++)
        {
                for (int j = 0; j < 2; j++)
                {
                        ammo[i][j] = EMPTY_CELL;
                }
        }

        #pragma endregion

        thread thr;
        int crntRound = 0;
        float angle;
        window.setKeyRepeatEnabled(false);
        while (window.isOpen())
        {
                Event _event;
                while (window.pollEvent(_event))
                {
                        if (_event.type == Event::Closed)
                                window.close();
                }
                window.clear(Color::Black);
                if (Keyboard::isKeyPressed(Keyboard::Space))
                {
                       
                                if (crntRound != 100)
                                {
                                        ammo[crntRound][X_COL] = 300;
                                        ammo[crntRound][Y_COL] = 300;
                                        crntRound++;
                                }
                                else
                                {
                                        crntRound = 0;
                                }
                }
               
                for (int i = 0; i < 100; i++)
                {
                        if (ammo[i][X_COL] != EMPTY_CELL && ammo[i][Y_COL] != -EMPTY_CELL)
                        {
                                if (!(ammo[i][X_COL] > 600 || ammo[i][Y_COL] > 600))
                                        sprite.setPosition(++ammo[i][X_COL], ammo[i][Y_COL]);
                                else
                                {
                                        ammo[i][X_COL] = EMPTY_CELL;
                                        ammo[i][Y_COL] = EMPTY_CELL;
                                }
                        }
                        window.draw(sprite);
                }
                window.display();
        }
        return 0;
}

13

General / Application hanging up.

« on: April 16, 2017, 07:29:28 pm »

hi guys,
i'm coding a tank game and i'm stuck at the point where tank shoot bullets, below is the unit of code i used to shoot bullets i've marked up where i think my applications hanging up. Please Help
----------------------------------------------
#include <Windows.h>
#include <SFML\Graphics.hpp>
#include <SFML\Window.hpp>
#include <vector>
#include <thread>

using namespace sf;
using namespace std;
#define X_COL 0
#define Y_COL 1

RenderWindow window(VideoMode(600, 600, 32), "Test 32");
Texture texture;
vector<Sprite> sprite(10, Sprite(texture));
float ammo[10][2];

int CALLBACK WinMain(_In_ HINSTANCE hInstance, _In_ HINSTANCE hPrevInstance, _In_ LPSTR lpCmdLine, _In_ int nCmdShow)
{
   
   texture.loadFromFile("bullet.png");
   sprite[0].setPosition(window.getSize().x / 2, window.getSize().y / 2);
   sprite[0].setOrigin(texture.getSize().x / 2, texture.getSize().y / 2);
   sprite[0].setRotation(360);

   for (int i = 0; i < 10; i++)
   {
      for (int j = 0; j < 2; j++)
      {
         ammo[j] = -1.0f;
      }
   }

   thread thr;
   int curntRound = 0;
   float angle;

   while (window.isOpen())
   {
      Event _event;
      while (window.pollEvent(_event))
      {
         if (_event.type == Event::Closed)
            window.close();
      }

      if (Keyboard::isKeyPressed(Keyboard::Space))
      {
         ammo[curntRound][X_COL] = sprite[0].getPosition().x;          // Application hang up here.
         ammo[curntRound][Y_COL] = sprite[0].getPosition().y;          // it only insert x y points at
                                                                                                                           // first iteration in 'ammo' array
         curntRound++;
      }
      window.clear(Color::Black);
      window.display();
   }
   return 0;
}
void fire()
{
   for (int i = 0; i < 10; i++)
   {
      if (ammo[X_COL] != 1.0f && ammo[Y_COL] != -1.0f)
         sprite[0].setPosition(++ammo[X_COL], ammo[Y_COL]);
      window.draw(sprite[0]);
   }
}