在pygame上制作足球游戏

Question

我在足球的碰撞中遇到了困难。你如何让球员移动球？我不知道该怎么做。我附上了我的代码，我用来碰撞足球。到目前为止，当球员跑到球上时，球只是进入一条对角线，而不是进入球网。有人能帮帮忙吗？

# collision scenario for what happenes when second soccer player collides with ball
    blocks_hit_list_soccer2 = pygame.sprite.spritecollide(soccer_Avatar2, block_list, False)
    for i in blocks_hit_list_soccer2:
        soccer_Avatar2.rect.x -= soccer2_x_speed
        soccer_Avatar2.rect.y -= soccer2_y_speed
        soccer2_x_speed = 0
        soccer2_y_speed = 0


# collision scenario for what happens when ball collides with wall
    blocks_hit_list_ball = pygame.sprite.spritecollide(soccer_Ball, block_list, False)
    for i in blocks_hit_list_ball:
        soccer_Ball.rect.x == ball_x_speed
        soccer_Ball.rect.y == ball_y_speed
        ball_x_speed = 0
        ball_y_speed = 0


# collision scenario for what happens when ball collides with first soccer player
    blocks_hit_list_ball = pygame.sprite.spritecollide(soccer_Ball, player1_list, False)
    for i in blocks_hit_list_ball:
        soccer_Ball.rect.x += ball_x_speed
        soccer_Ball.rect.y += ball_y_speed
        ball_x_speed = 5
        ball_y_speed = 5


# collision scenario for what happens when ball collides with second soccer player
    blocks_hit_list_ball2 = pygame.sprite.spritecollide(soccer_Ball, player2_list, False)
    for i in blocks_hit_list_ball2:
        soccer_Ball.rect.x -= ball_x_speed
        soccer_Ball.rect.y -= ball_y_speed
        ball_x_speed = 5
        ball_y_speed = 5

Answer 1

如果你使用的是足球的图像，那么这个代码就可以工作了！当用户触摸设备屏幕的左侧或右侧时，下面的命令会使足球(或图像)移动。

public boolean onTouch(View v, MotionEvent event) {
            int screenWidth = getResources().getDisplayMetrics().widthPixels;
            int x = (int)event.getX();
            int buffer = lp.leftMargin;
            if( x < screenWidth-buffer ) {
                int ScreenWidth = getResources().getDisplayMetrics().widthPixels;
                float Xtouch = event.getRawX();
                int sign = Xtouch > 0.5*ScreenWidth ? 1 : -1;
                float XToMove = 60; // or whatever amount you want
                int durationMs = 50;
                v.animate().translationXBy(sign*XToMove).setDuration(durationMs);
            }else {
                if( x < ( screenWidth/2) ) {
                    int ScreenWidth = getResources().getDisplayMetrics().widthPixels;
                    float xtouch = event.getRawX();
                    int sign = xtouch < 0.5 / ScreenWidth ? 1 : -1;
                    float xToMove = 60; // or whatever amount you want
                    int durationMs = 50;
                    v.animate().translationXBy(sign*xToMove).setDuration(durationMs);
                }
            }
            return false;
        }
    });

Answer 2

再试一次……

@Override
        public boolean onTouch(View v, MotionEvent event) {
            int screenWidth = getResources().getDisplayMetrics().widthPixels;
            int x = (int)event.getX();
            int buffer = lp.leftMargin;
            if( x > ( screenWidth/2) ) {
                int ScreenWidth = getResources().getDisplayMetrics().widthPixels;
                float Xtouch = event.getRawX();
                int sign = Xtouch > 0.5*ScreenWidth ? 1 : -1;
                float XToMove = 60; // or whatever amount you want
                int durationMs = 50;
                v.animate().translationXBy(sign*XToMove).setDuration(durationMs);
            }else {
                if( x < ( screenWidth/2) ) {
                    int ScreenWidth = getResources().getDisplayMetrics().widthPixels;
                    float xtouch = event.getRawX();
                    int sign = xtouch < 0.5 / ScreenWidth ? 1 : -1;
                    float xToMove = 60; // or whatever amount you want
                    int durationMs = 50;
                    v.animate().translationXBy(sign*xToMove).setDuration(durationMs);
                }
            }
            return false;
        }
    });