Messages

1

General / Re: How do i make enemy move by found shortest path?

« on: December 22, 2014, 02:25:38 pm »

Yeah, my english isn't that good to communicate so it's hard for me to ask good questions.
My main problem is/was that, i needed to have a position of each tile from bfs algorithm. In vertex array tutorials there is TileMap example it has "width" and "height" of array. When i have my path i need to get position of each tile, but i didn't have an idea how.
I am thinking about doing something like:

actuallTileNumber/width * tileSize.x = position.x and
actuallTileNumber/height * tileSize.y = position.y
then i just move sprite to the certain position, and get next tile.

I'm not really sure if it is correct and not sure if it would work, i can't test it now.

2

General / Re: How do i make enemy move by found shortest path?

« on: December 22, 2014, 01:09:54 pm »

You didn't understand m. I'm not asking for code, BFS searches through the map and finds shortest path. I know how to make circles/sprites move, but i don't know how to make a sprite move from tile 285->284->283.. and so on to some point. I'm asking for tips, not for code.

3

General / How do i make enemy move by found shortest path?

« on: December 22, 2014, 11:53:02 am »

Hello, i made a BFS algorithm, it finds shortest path. My map is represented as TileMap from Vertex tutorial.
So when i have path, how do i make someone move by it? My tilemap is 1d array.
My BFS code is (don't know if u actually need this):

void GraphFinder::shortestPath(int s, int e)
{
    std::queue<int> q;
        int v;
        bool found = false;
        bool *visited = new bool[414]; //414 is amount of tiles
        int *path = new int[414]; //414 is amount of tiles

        for(int i = 0; i < 414; ++i) //414 is amount of tiles
                visited[i] = false;

        path[s] = -1;

        q.push(s);
        visited[s] = true;

        while(!q.empty())
        {
                v = q.front();
                q.pop();
                if(v == e)
                {
                        found = true;
                        break;
                }
                for(auto i = adjList[v].begin(); i != adjList[v].end(); ++i)
                {
                        int u = *i;
                        if(!visited[u])
                        {
                                path[u] = v;
                                q.push(u);
                                visited[u] = true;
                        }
                }
        }
        if(!found) std::cout << "Way not found" << std::endl;
                else
        while(v > -1)
        {
                std::cout << v << std::endl;
                v = path[v];
        }
        while(!q.empty()) q.pop();
        delete [] path;
        delete [] visited;
}
 

I'm using SFML 2.1

4

Graphics / Why it doesn't draw?

« on: November 09, 2014, 11:23:24 pm »

My draw function doesn't work but i've got no compiler errors, i used debugger but it didn't help me(everythink seems fine), so i'm here to ask u why it doesn't actually draw
I've set the position of sprite, and texture. My draw function is:

void Player::render(sf::RenderWindow &window)
{
        window.draw(player);
}
 

but it actually doesn't show anything (yes, i have it in my game loop).
May be this because of textures are .bmp files? I've used .bmp files and everything was okay but now i don't know why it just doesn't draw.
It just seems like anything that i do with sprite isn't working, dunno why.
I know that because i made an circle and set this position to player position but i couldn't even move the sprite position (sprite is a player).
My render function in gameLoop is:

void Game::render()
{
        mWindow.clear();
        player.render(mWindow);
        mWindow.display();
}
 

Sorry for my bad english.

5

General / Looking for tips to improve my code

« on: September 22, 2014, 04:55:25 pm »

Hello. I am programming in SFML 2.0 for some time and i'd like you to give me some tips on improving my code overall. I made an Arkanoid clone.

Menu_State.h - main menu: http://pastebin.com/YVCrkiYg
Menu_State.cpp -  http://pastebin.com/x5rUZJU8

PlayGame_State.h - while playing: http://pastebin.com/ka7FGQ5y
PlayGame_State.cpp -  http://pastebin.com/vvRJ7Jpx

GameState.h - enum with game states: http://pastebin.com/bFEe8JXf

6

General / isKeyHold for some time

« on: September 14, 2014, 08:22:04 pm »

Hello. First of all i wanna say that, my english is not my native language so i may make many mistakes.

Ok, i have no idea how should i check if key was hold for some time, i mean i press space and i wanna to know if it was hold for some time or released, how am i supposed do that?