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Graphics / How to render a tile based game efficiently?
« on: June 17, 2014, 09:27:35 pm »
Hi!
I'm currently trying to create a small, tile-based adventure game implemented in C++ and SFML and need a way to render my tiles efficiently. Right now I use a vector of sprites (std::vector<Sprite>) in which I fill in the Sprites created in the map generation algorithm (I created 3 Sprites whose textures are set to be soil, grass and water, then, while generating the map, I change their position and put the moved Sprite into the vector before changing the position again). This vector is passed to the main class in which I render every Sprite with a for-loop that calls the window.draw() function for every individual Sprite.
Drawing all of those Sprites every time in the main loop and moving them around via the sf::View class is incredibly exhausting for my computer - so there has to be a more efficient way. I probably need to reduce the draw calls. I thought about only re-drawing my tiles everytime there's a change to the map and using the View class to hover over a mostly static image - I also read that I should send my draw calls in a batch or draw a big image via the window.draw() call instead of calling this function for every tile, but I'm still not sure about what the most efficient way to do this is.
I hope someone can give me advice on how to render my map resource-friendly - sadly I'm not that experienced with this library.
I'm currently trying to create a small, tile-based adventure game implemented in C++ and SFML and need a way to render my tiles efficiently. Right now I use a vector of sprites (std::vector<Sprite>) in which I fill in the Sprites created in the map generation algorithm (I created 3 Sprites whose textures are set to be soil, grass and water, then, while generating the map, I change their position and put the moved Sprite into the vector before changing the position again). This vector is passed to the main class in which I render every Sprite with a for-loop that calls the window.draw() function for every individual Sprite.
Drawing all of those Sprites every time in the main loop and moving them around via the sf::View class is incredibly exhausting for my computer - so there has to be a more efficient way. I probably need to reduce the draw calls. I thought about only re-drawing my tiles everytime there's a change to the map and using the View class to hover over a mostly static image - I also read that I should send my draw calls in a batch or draw a big image via the window.draw() call instead of calling this function for every tile, but I'm still not sure about what the most efficient way to do this is.
I hope someone can give me advice on how to render my map resource-friendly - sadly I'm not that experienced with this library.