#include <gb/gb.h>
#include <stdio.h>
#include "racecars.h"
/*
RACECARS.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 16
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 Racecars[] =
{
0x7E,0x7E,0x42,0x5E,0xC3,0xD7,0xC3,0xDF,
0x42,0x52,0x7E,0x7E,0xC3,0xC3,0xC3,0xC3,
0x1C,0x1C,0x36,0x3E,0x62,0x7A,0x43,0x4B,
0x41,0x5D,0x7F,0x7F,0x55,0x55,0x77,0x77,
0x38,0x38,0x44,0xC6,0xAA,0xAA,0xAA,0xAA,
0xAA,0xAA,0x82,0x82,0x44,0xC6,0x38,0x38,
0x18,0x18,0x18,0x18,0x24,0x24,0x42,0x42,
0xFF,0xFF,0x00,0xC6,0x00,0xC6,0x00,0x00,
0x3C,0x3C,0x24,0xE7,0x24,0xE7,0x24,0x24,
0x24,0xE7,0x3C,0xFF,0x24,0x24,0x3C,0x3C,
0x18,0x18,0x24,0xE7,0x42,0xC3,0x42,0x42,
0x42,0x42,0x24,0x66,0x18,0x7E,0x00,0x00,
0xF2,0xF2,0x96,0x96,0xF2,0xF2,0x82,0x82,
0x8F,0x8F,0x00,0x00,0x00,0x00,0x00,0x00,
0xEE,0xEE,0x82,0x82,0x8E,0x8E,0x8B,0x8B,
0xEE,0xEE,0x00,0x00,0x00,0x00,0x00,0x00,
0xEE,0xEE,0x82,0x82,0x8E,0x8E,0x82,0x82,
0xEE,0xEE,0x00,0x00,0x00,0x00,0x00,0x00,
0xE2,0xE2,0x86,0x86,0x82,0x82,0x82,0x82,
0xE7,0xE7,0x00,0x00,0x00,0x00,0x00,0x00,
0xEA,0xEA,0x8A,0x8A,0x8E,0x8E,0x82,0x82,
0xE2,0xE2,0x00,0x00,0x00,0x00,0x00,0x00,
0xE7,0xE7,0x84,0x84,0x87,0x87,0x81,0x81,
0xE7,0xE7,0x00,0x00,0x00,0x00,0x00,0x00,
0xF7,0xF7,0x85,0x85,0x85,0x85,0xB5,0xB5,
0x95,0x95,0xF7,0xF7,0x00,0x00,0x00,0x00,
0x82,0x82,0x82,0x82,0x92,0x92,0x92,0x92,
0x92,0x92,0x92,0x92,0xFE,0xFE,0x00,0x00,
0xFF,0xFF,0x10,0x10,0x10,0x10,0x10,0x10,
0x10,0x10,0xFF,0xFF,0x00,0x00,0x00,0x00,
0x82,0x82,0xC2,0xC2,0xA2,0xA2,0x92,0x92,
0x8A,0x8A,0x86,0x86,0x82,0x82,0x00,0x00,
0x20,0x20,0x30,0x30,0x38,0x38,0x3C,0x3C,
0x20,0x20,0x20,0x20,0x20,0x20,0xFF,0xFF
};
/* End of RACECARS.C */
int main(void){ //starts the main function
int x,y,st,key,z; //define the integers x and y wich will be used to define the hero position, key will be used later
int x1,y1,st1;
int x2,y2,st2;
int x3,y3,st3;
x=20; //set x as 20
y=20; //set y as 20
st=0; //sprite type(1=closed 0=open)
z=0; //set z=0, z will be used for testing if its time to change sprite or not
set_sprite_data(0,76,Racecars); //set our sprite data
wait_vbl_done(); //wait for the visual blank to be done
set_sprite_tile(0,0); //set our tile 0 as the tile 0 of our tile data-pacman open
set_sprite_tile(1,1); //set our tile 1 as the 1st tile of our tile data-pacman closed
set_sprite_tile(2,2);
set_sprite_tile(3,3);
set_sprite_tile(4,4);
set_sprite_tile(5,5);
set_sprite_tile(6,6);
set_sprite_tile(7,7);
set_sprite_tile(8,8);
set_sprite_tile(9,9);
set_sprite_tile(10,10);
set_sprite_tile(11,11);
set_sprite_tile(12,12);
set_sprite_tile(13,13);
set_sprite_tile(14,14);
set_sprite_tile(15,15);
set_sprite_tile(16,16);
move_sprite(st,x,y);
#define MapSizeX 256;
#define MapSizeY 256;
UBYTE ScrollXCnt;
UBYTE ScrollYCnt;
BYTE SCXCnt;
BYTE SCYCnt;
UBYTE tempa, tempb;
UWORD Cnt;
Cnt = 0;
wait_vbl_done();
for(tempa = 0; tempa != 32; tempa++) {
set_bkg_tiles(0,tempa,32,tempa+1,TileMap[Cnt]);
Cnt = Cnt + MapSizeX;
}
if(joypad() & J_UP) ScrollUp();
if(joypad() & J_DOWN) ScrollDown();
if(joypad() & J_LEFT) ScrollLeft();
if(joypad() & J_RIGHT) ScrollRight();
wait_vbl_done();
scroll_bkg(x,y);
ScrollX++; or ScrollX--;
ScrollY++; or ScrollY--;
SCXCnt++; or SCXCnt++;
SCYCnt++; or SCYCnt--;
if(SCXCnt == 8) {
SCXCnt = 0;
Cnt = ScrollX / 8;
Cnt = Cnt + 20;
for(tempa = 0; tempa != 224; tempa++) {
set_bkg_tiles(0,tempa,1,tempa+1,TileMap[Cnt]);
Cnt = Cnt + MapSizeX;
}
}
if(SCXCnt == -8) {
SCXCnt = 0;
SCXCnt = 0;
Cnt = ScrollX / 8;
Cnt--;
for(tempa = 0; tempa != 224; tempa++) {
set_bkg_tiles(0,tempa,1,tempa+1,TileMap[Cnt]);
Cnt = Cnt + MapSizeX;
}
}
.
.
.
这是c代码
我运行了提示，弹出了以下错误。
Parse error before ubyte line 108 Parse error before scroll x Parse error before scroll y Parse error before scxCnt Parse error before ScyCnt Parse error before 32
答案 0 :(得分：1)
您的问题是您要在函数中间定义新变量。无论出于何种原因，GBDK编译器都不允许这样做。 （这显然是ANSI C / C89标准的一部分）
您可以通过更改main()的顶部
int main(void){ //starts the main function
int x,y,st,key,z; //define the integers x and y wich will be used to define the hero position, key will be used later
int x1,y1,st1;
int x2,y2,st2;
int x3,y3,st3;
到此：
int main(void){ //starts the main function
int x,y,st,key,z; //define the integers x and y wich will be used to define the hero position, key will be used later
int x1,y1,st1;
int x2,y2,st2;
int x3,y3,st3;
//These variables are used later on.
UBYTE ScrollXCnt;
UBYTE ScrollYCnt;
BYTE SCXCnt;
BYTE SCYCnt;
UBYTE tempa, tempb;
UWORD Cnt;
或者，您可以将从这些变量开始的所有代码移动到另一个函数，然后使用该函数声明这些变量，并且一切都会正常。
答案 1 :(得分：0)
您可能缺少定义UBYTE的包含文件。
答案 2 :(得分：0)
当前的 sdcc 4.1.0 和 gbdk-2020 4.0.3 不应出现该 UBYTE 错误
GBDK 的最后一次更新是 2001 年左右......
虽然其他错误来自您的代码无效。
这不是有效的 C 代码：
ScrollX++; or ScrollX--;
ScrollY++; or ScrollY--;
SCXCnt++; or SCXCnt++;
SCYCnt++; or SCYCnt--;
而且我认为这不是您想要的：
#define MapSizeX 256;
#define MapSizeY 256;
定义总是无作用域的，因为它们是由预处理器而不是编译器处理的。而你更想要#define MapSizeX 256U
您编写的内容将适用于您的代码。
Cnt = Cnt + MapSizeX; 变成 Cnt = Cnt + 256;; 没什么大不了的，但以后可能会坏掉。