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所以我正在學習sprite編程,我們正在使用allegro。當我運行其中一個示例程序時,我收到消息:rotateprite.exe觸發了一個斷點。這是在視覺工作室。我不能讓快板外出打工的Visual StudioAllegro程序觸發斷點?
示例程序:
#include <allegro.h>
#define WHITE makecol(255,255,255)
int main(void)
{
int x, y;
float angle = 0;
BITMAP *tank;
//initialize program
allegro_init();
install_keyboard();
set_color_depth(32);
set_gfx_mode(GFX_AUTODETECT_WINDOWED, 640, 480, 0, 0);
textout_ex(screen,font,"Rotate: LEFT/RIGHT arrow keys",
0,0,WHITE,0);
//load tank sprite
tank = load_bitmap("C:\Users\Jason\Desktop\module7\tank.bmp", NULL);
//calculate center of screen
//x = SCREEN_W/2 - tank->w/2;
//y = SCREEN_H/2 - tank->h/2;
x=SCREEN_W/2;
y=SCREEN_H/2;
//draw tank at starting location
rotate_sprite(screen, tank, x, y, 0);
//main loop
while(!key[KEY_ESC])
{
//wait for keypress
if (keypressed())
{
//left arrow rotates left
if (key[KEY_LEFT])
{
angle -= 0.1;
if (angle < 0) angle = 256;
rotate_sprite(screen, tank, x, y, itofix(angle));
}
//right arrow rotates right
if (key[KEY_RIGHT])
{
angle += 0.1;
if (angle > 256) angle = 0;
rotate_sprite(screen, tank, x, y, itofix(angle));
}
//display angle
textprintf_ex(screen, font, 0, 10, WHITE, 0,
"Angle = %f", angle);
}
}
allegro_exit();
return 0;
}
END_OF_MAIN()
程序觸發斷點:crt0msg.c從磁盤中。 代碼片段:
#ifdef _DEBUG
/*
* Report error.
*
* If _CRT_ERROR has _CRTDBG_REPORT_WNDW on, and user chooses
* "Retry", call the debugger.
*
* Otherwise, continue execution.
*
*/
if (rterrnum!=_RT_CRNL&&rterrnum!=_RT_BANNER&&rterrnum!=_RT_CRT_NOTINIT)
{
if (1 == _CrtDbgReport(_CRT_ERROR, NULL, 0, NULL,rterrs[tblindx].rterrtxt))
_CrtDbgBreak();
}
#endif /* _DEBUG */