Messages

1

Graphics / Re: 1024 x 1024 tile map

« on: June 23, 2017, 05:40:43 pm »

So I've added this method to the loop which creates 4 vertecies in a
vector<vector<sf::Vertex>> vertices;

this is the way I'm currently assigning them

void CGameMap::CreateRenderingVertecies(int row,int col)
{
   int temp = col * 4;
   sf::Vertex* tStrip = &vertices[row][temp];
   tStrip[0].position = sf::Vector2f(temp / 4 * multiplier row * multiplier);
   tStrip[1].position = sf::Vector2f(temp / 4 * multiplier, (row + 1) * multiplier);
   tStrip[2].position = sf::Vector2f((temp / 4 + 1)*multiplier, row * multiplier);
   tStrip[3].position = sf::Vector2f((temp / 4 + 1)*multiplier, (row + 1) * multiplier);

   tStrip[0].texCoords = sf::Vector2f(0, 0);
   tStrip[1].texCoords = sf::Vector2f(0, 16);
   tStrip[2].texCoords = sf::Vector2f(16, 0);
   tStrip[3].texCoords = sf::Vector2f(16, 16);
}

I am not sure, how to attach the texture and/or states in order to use it in my draw method where im passing a reference of the window.

2

Graphics / Re: 1024 x 1024 tile map

« on: June 23, 2017, 11:05:56 am »

So what I want to do is create the vertecies while im filling up the array. So every 1024 columns would be 1 triangle strip. Also I am aware that i have to select the texture/color of the maptile as I am giving them vector2f value. This way I would reduce my draw calls from 1024*1024 to only 1024

3

Graphics / 1024 x 1024 tile map

« on: June 23, 2017, 02:01:45 am »

I was browsing the forum and I've read the tutorial on drawing tile maps, but it uses quads only. I would like to use a vector of vertex in order to draw each line of the array as a triangle strip, but I don't know how to do it yet. Currently this is the way I am storing each tile type from a file. I plan to use this array for path finding at a later point. Maybe I can use this to insert into the vertex vector?

if (file.is_open())
   {
      while (!file.eof())
         for (int row = 0; row < 1024; row++)
         {
            getline(file, line);
            stringstream ssLine(line);
            for (int col = 0; col < 1024; col++)
            {
               string sValue;
               getline(ssLine, sValue, ',');

               stringstream convertor(sValue);
               convertor >> MapTiles[row][col];
            

            }
         }

      file.close();
   }

the idea is to to have 1024 triangle strips, which I will draw, thus making it quicker.

Thanks in advance!