Messages

1

General / Re: 2D Tile Based RPG Questions

« on: December 22, 2013, 01:25:51 pm »

OK thanks that's very helpful

2

General / 2D Tile Based RPG Questions

« on: December 22, 2013, 01:05:37 pm »

Hey,
I am developing a Tile Based 2D map editor for my game (Zelda style). So far, all is going well except I am noticing rather slow FPS in some scenarios. I have a few questions regarding this, and would appreciate any help

1. To store the sprites for each tile, I have been declaring an array like this in the globals:

sf::Sprite TileSprite[MaxXTiles][MaxYTiles][MaxZTiles];

My assumption with this was that this wouldnt slow down performance unless the sprites were being drawn, which only happens when they are textured. Is this a correct assumption to make? if not, should I be using another system such as dynamic arrays?

2. This is more of a general RPG game theory question.. At the moment, when a tile is selected from a tileset, that tile's texture rectangle, texture pointer and tileset filename are stored. When placed, I set the new tile's rectangle and texture equal to the one on the tileset. When saving, I save the rectangle and the tileset filename. Is this is the best way to do things? If not, how should I be doing it?

3. What is the usual way to save map data for this kind of game? I have seen other projects use XML, but I am unfamiliar with XML, so I am wondering whether it is viable to use the fstream commands included with C++?

Matt

3

Graphics / Re: Why doesn't this work?

« on: December 16, 2013, 10:14:04 pm »

OK, thanks for the advice.. I was planning to try and learn on the job as I have coded games previously in other languages but I will take your advice and learn more of the theory first

4

Graphics / Re: Why doesn't this work?

« on: December 16, 2013, 08:17:04 pm »

I did read it.. I suppose what I should have asked is how can I perform this action without creating more images?

5

Graphics / Re: Extremely slow FPS drawing large sprites

« on: December 16, 2013, 07:52:32 pm »

OK, I made a minimal complete example, and couldn't reproduce the problem.. Unfortunately, I have no idea what is causing it. Are there any known issues with using sprites with global / cross file functions and variables? So basing it's coordinates on a function which is in another file?

6

Graphics / Why doesn't this work?

« on: December 16, 2013, 07:45:38 pm »

Hey,

I am trying to set one sprites texture to be the same as another's, but it wont compile..

Like this:

Sprite.setTexture(Sprite2.getTexture);

I also tried:
Like this:

Sprite.setTexture(Sprite2.getTexture());

Any help would be greatly appreciated

7

Graphics / Extremely slow FPS drawing large sprites

« on: December 15, 2013, 11:02:47 pm »

Hey,
I am just starting to learn C++ and SFML, so if there are any really stupid mistakes in my code, please don't hate me

I am trying to draw a fairly large (960x976) sprite to my screen, but when I do, it slows down to less than 1 FPS. I am also drawing 10,000 16x16 sprites to my screen, and this runs at 60 FPS no problem. I have an HD 5770 with 1gb GDDR5, so that isn't the issue I don't think.

Any help is much appriciated

if (sf::Keyboard::isKeyPressed(sf::Keyboard::LAlt) && EditorMode == 1) {
                                        TileSetSprite.setPosition(sf::Vector2f(GetLeftPixel(0), GetTopPixel(0)));
                                        Window.draw(TileSetSprite);
                                }