Messages

1

C / Re: Create a double array of sfSprite

« on: February 27, 2018, 04:48:42 pm »

So you just want a classic 1D array.

sfSprite** sprites;

sprites = malloc(3 * sizeof(sfSprite*));
sprites[0] = ...;
sprites[1] = ...;
sprites[2] = ...;

Note that this is basic C stuff, so maybe you should spend more time learning C before trying to do more complicated things.

I know it just basic stuff in C. But in basic C we just use pointer of char, void and int and the sfSprite type do not exist. I know that the sfSprite is a structure create for sfml and I thought It would be different. And I already try that. Check my first message I show you what I have tried. I have try exactly the same thing but it don't work.

Sorry it's been a year that im learning c.

Found the solution thank you everyone. I just changed my malloc from:
malloc(sizeof(sfSprite) * n); to
malloc(sizeof(*sprite) * n)
And it work now


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2

C / Create a double array of sfSprite

« on: February 27, 2018, 04:40:00 pm »

So you just want a classic 1D array.

sfSprite** sprites;

sprites = malloc(3 * sizeof(sfSprite*));
sprites[0] = ...;
sprites[1] = ...;
sprites[2] = ...;

Note that this is basic C stuff, so maybe you should spend more time learning C before trying to do more complicated things.

I know it just basic stuff in C. But in basic C we just use pointer of char, void and int and the sfSprite type do not exist. I know that the sfSprite is a structure create for sfml and I thought It would be different. And I already try that. Check my first message I show you what I have tried. I have try exactly the same thing but it don't work.

Sorry it's been a year that im learning c.

3

C / Re: Create a double array of sfSprite

« on: February 27, 2018, 12:53:15 pm »

A sfSprite* is usually one sprite (because CSFML internally allocates instances dynamically, and therefore returns/takes pointers). So sfSprite** would be a 1-dimensional array. A 2-dimensional array would be sfSprite***. Figure out this stuff an you'll have half of the problem solved. To solve the other half, you'll have to tell us what you want to do, not with C types but with real words, so that it is not ambiguous

Thank you for replying me first. What i want to do is a burger maker gamer. Basically when the player press a button for example a steak appears on the screen. So when the player press the button i create a new sprite give it a texture and display it. But if he press the button again a new sprite is create on the top of the old one. So to store all those sprite I need to store them somewhere in a array of sprites. So i can access to my sprites


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4

C / Re: Create a double array of sfSprite

« on: February 27, 2018, 11:45:16 am »

What's a double array?

I mean by a double array a sfSprite **
Same as char **
Inside a char ** you can store char *
I want to do the same store multiple sfSprite * in a sfSprite **. I would like to know if their is a way to store multiple sprite so i can access them more easly.


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5

C / Create a double array of sfSprite

« on: February 26, 2018, 09:51:15 pm »

Hello, Im wondering if we could create a double array of sprite.

I tried something like this:
sfSprite *sprite[3];
sprite = malloc(sizeof (sfSprite *) * 3);
sprite[0] = my_sprite create("Document/image/image.png");
sprite[1] = my_sprite create("Document/image/image.png");
sprite[2] = my_sprite create("Document/image/image.png");
sfRenderWindow_drawSprite(window, sprite[0], NULL);

I tried a lot of otherways but it don't work. I would like to know if it's possible.

6

C / Re: Texture how to load area image

« on: August 21, 2017, 10:48:11 am »

Thank you for your answer. I am using C binding because I am new to programming and the first language that I am learning is C.

I did initialize the structure like below but I'm not sure how to use it in the function sfTexture_createFromFile().
And the documentation doesn't say much about it.

My example:

#include <SFML/Audio.h>
#include <SFML/Graphics.h>
#include <SFML/Config.h>
#include <stdlib.h>
#include "my.h"

  struct sfIntRect {
    int left;
    int top;
    int width;
    int height;
  };

int     map_creation(sfRenderWindow* window)
{
  sfTexture* ptexture;
  sfSprite* player;
  sfEvent event;
 
#This line
  ptexture = sfTexture_createFromFile("sprite.png",  10, 10, 32, 32);
  if (!ptexture)
    return EXIT_FAILURE;
  player = sfSprite_create();
  sfSprite_setTexture(player, ptexture, sfTrue);

 

 

7

C / Texture how to load area image

« on: August 20, 2017, 02:57:02 pm »

Hello the community, I have a little problem. I don't know the structure to load a specific area in a texture.

Look at my code:

#include <SFML/Audio.h>
#include <SFML/Graphics.h>
#include <SFML/Config.h>
#include <stdlib.h>
#include "my.h"

int     map_creation(sfRenderWindow* window)
{
  sfTexture* mtexture;
  sfTexture* ptexture;
  sfSprite* map;
  sfSprite* player;
  sfEvent event;

  mtexture = sfTexture_createFromFile("map1.png", NULL);
  if(!mtexture)
    return EXIT_FAILURE;
  map = sfSprite_create();
  sfSprite_setTexture(map, mtexture, sfTrue);

//In here im not sure about the stIntRect(10, 10, 32, 32)
  ptexture = sfTexture_createFromFile("sprite.png", sfIntRect(10, 10, 32, 32));
  if (!ptexture)
    return EXIT_FAILURE;
  player = sfSprite_create();
  sfSprite_setTexture(player, ptexture, sfTrue);

  while (sfRenderWindow_isOpen(window))
    {
      sfRenderWindow_clear(window, sfBlack);
      sfRenderWindow_drawSprite(window, map, NULL);
      sfRenderWindow_display(window);
     
      while (sfRenderWindow_pollEvent(window, &event))
        {
          if (event.type == sfEvtClosed)
            sfRenderWindow_close(window);
        }
    }
 
  return (0);
}
 

The console says :
gcc -o tekadventure main.c tekadventure.c -W -Wall -Werror -lcsfml-graphics -lcsfml-audio -lm libmy.a
tekadventure.c: In function ‘map_creation’:
tekadventure.c:30:53: error: expected expression before ‘sfIntRect’
   ptexture = sfTexture_createFromFile("sprite.png", sfIntRect(10, 10, 32, 32));
                                                     ^
Makefile:26: recipe for target 'tekadventure' failed
make: *** [tekadventure] Error 1


I know I did not write it the right way, I tried to look at SFML c++ and adapt it to the CSFML API but is not working.

Thank you in advance.