jumping for a gameboy

guy.c

/*

 GUY.C

 Tile Source File.

 Info:
  Form                 : All tiles as one unit.
  Format               : Gameboy 4 color.
  Compression          : None.
  Counter              : None.
  Tile size            : 8 x 8
  Tiles                : 0 to 0

  Palette colors       : None.
  SGB Palette          : None.
  CGB Palette          : None.

  Convert to metatiles : No.

 This file was generated by GBTD v2.2

*/

/* Start of tile array. */
unsigned char guy[] =
{
  0x7C,0x7C,0x7C,0x44,0x7C,0x44,0x7C,0x44,
  0x7C,0x7C,0x10,0x10,0x7C,0x7C,0x10,0x10
};

/* End of GUY.C */

guy.h

/*

 GUY.H

 Include File.

 Info:
  Form                 : All tiles as one unit.
  Format               : Gameboy 4 color.
  Compression          : None.
  Counter              : None.
  Tile size            : 8 x 8
  Tiles                : 0 to 0

  Palette colors       : None.
  SGB Palette          : None.
  CGB Palette          : None.

  Convert to metatiles : No.

 This file was generated by GBTD v2.2

*/


/* Bank of tiles. */
#define guyBank 0
/* Start of tile array. */
extern unsigned char guy[];

/* End of GUY.H */

main.c

#include <gb/gb.h>
#include <stdio.h>
#include <stdbool.h>
#include "guy.c"
#include "main.h"

void main()
{
    UINT8 player_location_x = 10;
    UINT8 player_location_y = 100;
    set_sprite_data(0, 1, guy);
    set_sprite_tile(0, 0);
    move_sprite(0, player_location_x, player_location_y);

    DISPLAY_ON;
    SHOW_SPRITES;
    bool is_jumping = false;
    while (1)
    {
        INT8 old_player_y = player_location_y;
        switch (joypad())
        {
            case J_LEFT:
                if (is_jumping)
                    break;
                player_location_x -= 2;
                move_sprite(0, player_location_x, player_location_y);
                break;
            case J_RIGHT:
                if (is_jumping)
                    break;
                player_location_x += 2;
                move_sprite(0, player_location_x, player_location_y);
                break;
            case J_A:
                if (is_jumping)
                    break;
                else
                    is_jumping = true;
                for (int i = 0; i <= 5; i++)
                {
                    player_location_y--;
                    move_sprite(0, player_location_x, player_location_y);
                    performantdelay(3);
                }
                for (int i = 0; i <= 5; i++)
                {
                    player_location_y++;
                    move_sprite(0, player_location_x, player_location_y);
                    performantdelay(3);
                }
                is_jumping = false;
                break;
        }
        performantdelay(2);
    }
}

void performantdelay(UINT8 numloops)
{
    UINT8 i;
    for(i = 0; i < numloops; i++)
    {
        wait_vbl_done();
    }     
}

main.h

void performantdelay(UINT8 numloops);