c++乒乓球遊戲問題 - Delphi K.Top 討論區

發表時間：2009-01-11 20:31:50

IP:203.68.xxx.xxx 訂閱

這是我做的乒乓球遊戲,要如何把左右左右移動的棒子改成上下移動的棒子呢?還有球的移動方向從左右改成上下呢?,謝謝
#include
#include
#define DOWN_RIGHT 0
#define UP_RIGHT 1
#define DOWN_LEFT 2
#define UP_LEFT 3
void moveBall(void);
void respondToKeyboard(void);
void reverseVerticalDirection(void);
void reverseHorizontalDirection(void);
int ball_x;
int ball_y;
int barL_y;
int barR_y;
int scoreL;
int scoreR;
int W,H;
int direction;
BITMAP *ball;
BITMAP *bar;
BITMAP *buffer;
FONT *pongFont;
void delay (int a)
{

while (a > 0 )
{a = a -1;

}
/* printf( "a= %d", a ); */
}
int main(void)
{
allegro_init();
install_keyboard();
set_color_depth(16);
set_gfx_mode(GFX_AUTODETECT, 640, 480, 0 ,0 );
ball_x=SCREEN_W/2;
ball_y=SCREEN_H/2;
barL_y=SCREEN_H/2;
barR_y=SCREEN_H/2;
ball=load_bitmap("ball.bmp", NULL);
bar= load_bitmap("bar.bmp",NULL);
buffer = create_bitmap( SCREEN_W,SCREEN_H );
pongFont = load_font("pongfont.pcx", NULL, NULL);
srand(time(NULL));
direction = rand() % 4;
while(!key[KEY_ESC])
{
moveBall();
respondToKeyboard();
clear_to_color(buffer, makecol(255,255,255));

blit(bar,buffer, 0, 0, 20,barL_y, bar->w, bar->h);
blit(bar,buffer, 0, 0, 600,barR_y, bar->w, bar->h);
// readkey();
textprintf_ex(buffer, pongFont, 75, 20, makecol( 0, 0, 0),-1, "Left Player Score: %d",scoreL );
textprintf_ex(buffer, pongFont, 400, 20, makecol( 0, 0, 0),-1, "Right Player Score: %d",scoreR );
blit(ball,buffer, 0, 0, ball_x, ball_y, ball->w, ball->h);
blit(buffer,screen,0,0,0,0,buffer->w,buffer->h);
clear_bitmap(buffer);
W=ball->w;
H=ball->h;

delay(1000000);
// readkey();
}

destroy_bitmap(ball);
destroy_bitmap(bar);
destroy_bitmap(buffer);
destroy_font(pongFont);
return 0;

}

END_OF_MAIN();

void moveBall()
{
if (ball_y <=0 || ball_y >480-H )
reverseVerticalDirection();
if(ball_x <= 0 || ball_x >= 640-W)
reverseHorizontalDirection();
switch (direction){

case DOWN_RIGHT:
ball_x;
ball_y;
break;
case UP_RIGHT:
ball_x;
--ball_y;
break;
--ball_y;
case DOWN_LEFT:
--ball_x;
ball_y;
break;
case UP_LEFT:
--ball_x;
--ball_y;
break;

}
if(ball_x <40 && (direction == DOWN_LEFT || direction == UP_LEFT))
{
if(ball_y >(barL_y - 39)&& ball_y <(barL_y 99))
{reverseHorizontalDirection(); scoreL;}
else if (ball_x <= 10){
scoreR;
ball_x = SCREEN_W / 2;
ball_y = SCREEN_H / 2;
direction = rand() % 4;
}
}
if(ball_x >560 && (direction == DOWN_RIGHT || direction == UP_RIGHT))
{
if(ball_y >(barR_y - 39)&& ball_y <(barR_y 99))
{reverseHorizontalDirection(); scoreR;}
else if (ball_x >= 600){
scoreL;
ball_x = SCREEN_W / 2;
ball_y = SCREEN_H / 2;
direction = rand() % 4;
}
}

}
void respondToKeyboard()
{
if (key [KEY_A])
barL_y -= 3;
if (key [KEY_Z])
barL_y = 3;
if (key [KEY_UP])
barR_y -= 3;
if (key [KEY_DOWN])
barR_y = 3;
if (barL_y < 30)
barL_y = 30;
else if (barL_y > 380)
barL_y = 380;
if (barR_y < 30)
barR_y = 30;
if (barR_y > 380)
barR_y = 380;
}

void reverseVerticalDirection()
{
if((direction % 2) == 0)
{ direction;
printf("direction=%d,",direction);}
else
--direction;
}
void reverseHorizontalDirection()
{direction =(direction 2)% 4;
}

編輯記錄

taishyang 重新編輯於 2009-01-12 10:09:53，註解移除[急需]兩字‧