我目前正在我的设备(三星 Galaxy S2)上为我的游戏测试 touchstart 功能。我正在使用包装在android中phonegap下的javascript和jquery进行编程,目前存在以下问题:
- 我的触摸启动事件(例如触发攻击按钮“touchstart”事件以运行一些 javascript 来执行攻击操作)导致我的屏幕暂时变得模糊,然后在不到一秒的时间内恢复正常,所以更像是屏幕闪烁图像变得紧张)。我没有使用 css 转换或转换,只是简单的 css 和图像。
有人可以让我知道他们是否遇到过与我类似的问题。有点不知所措,无论是硬件还是触摸启动问题,我都可以解决该问题。
下面的示例 Javascript 用于我的导航控件(左、上、下、右 touchstart 点击):
if ('ontouchstart' in document.documentElement) {
var left = document.getElementById('left');
left.addEventListener("touchstart", function(e){
if(controlsPlayerChar == '')
{
return false;
}
var l_oldCell = $('#' + controlsPlayerChar).parent().attr('id');
var l_xy = l_oldCell.split('_');
var l_x = l_xy[0];
var l_y = l_xy[1];
if(l_y == 1)
{
direction = "left";
setCharDynamics(controlsPlayerChar);
return false;
}
var l_newCell = l_x + '_' + (parseInt(l_y) - 1);
// validate if next cell is empty
if($('#' + l_newCell + ':has(".shadow")').val() != undefined
|| $('#' + l_newCell + ':has(".ally")').val() != undefined
|| $('#' + l_newCell + ':has(".obstacle")').val() != undefined)
{
direction = "left";
setCharDynamics(controlsPlayerChar);
return false;
}
$('#' + l_newCell).append($('#' + controlsPlayerChar));
$('#' + l_oldCell + ' ' + '#' + controlsPlayerChar).remove();
// set char direction to 'left' and set next footstep
setDirection('left');
setFootstep(footstep);
setCharDynamics(controlsPlayerChar);
});
var up = document.getElementById('up');
up.addEventListener("touchstart", function(e){
if(controlsPlayerChar == '')
{
return false;
}
var u_oldCell = $('#' + controlsPlayerChar).parent().attr('id');
var u_xy = u_oldCell.split('_');
var u_x = u_xy[0];
var u_y = u_xy[1];
if(u_x == 1)
{
direction = "up";
setCharDynamics(controlsPlayerChar);
return false;
}
var u_newCell = (parseInt(u_x) - 1) + '_' + u_y;
// validate if next cell is empty
if($('#' + u_newCell + ':has(".shadow")').val() != undefined
|| $('#' + u_newCell + ':has(".ally")').val() != undefined
|| $('#' + u_newCell + ':has(".obstacle")').val() != undefined)
{
direction = "up";
setCharDynamics(controlsPlayerChar);
return false;
}
$('#' + u_newCell).append($('#' + controlsPlayerChar));
$('#' + u_oldCell + ' ' + '#' + controlsPlayerChar).remove();
// set char direction to 'up' and set next footstep
setDirection('up');
setFootstep(footstep);
setCharDynamics(controlsPlayerChar);
});
var down = document.getElementById('down');
down.addEventListener("touchstart", function(e){
if(controlsPlayerChar == '')
{
return false;
}
var d_oldCell = $('#' + controlsPlayerChar).parent().attr('id');
var d_xy = d_oldCell.split('_');
var d_x = d_xy[0];
var d_y = d_xy[1];
if(d_x == rows)
{
direction = "down";
setCharDynamics(controlsPlayerChar);
return false;
}
var d_newCell = (parseInt(d_x) + 1) + '_' + d_y;
// validate if next cell is empty
if($('#' + d_newCell + ':has(".shadow")').val() != undefined
|| $('#' + d_newCell + ':has(".ally")').val() != undefined
|| $('#' + d_newCell + ':has(".obstacle")').val() != undefined)
{
direction = "down";
setCharDynamics(controlsPlayerChar);
return false;
}
$('#' + d_newCell).append($('#' + controlsPlayerChar));
$('#' + d_oldCell + ' ' + '#' + controlsPlayerChar).remove();
// set char direction to 'down' and set next footstep
setDirection('down');
setFootstep(footstep);
setCharDynamics(controlsPlayerChar);
});
var right = document.getElementById('right');
right.addEventListener("touchstart", function(e){
if(controlsPlayerChar == '')
{
return false;
}
var r_oldCell = $('#' + controlsPlayerChar).parent().attr('id');
var r_xy = r_oldCell.split('_');
var r_x = r_xy[0];
var r_y = r_xy[1];
if(r_y == cols)
{
direction = "right";
setCharDynamics(controlsPlayerChar);
return false;
}
var r_newCell = r_x + '_' + (parseInt(r_y) + 1);
// validate if next cell is empty
if($('#' + r_newCell + ':has(".shadow")').val() != undefined
|| $('#' + r_newCell + ':has(".ally")').val() != undefined
|| $('#' + r_newCell + ':has(".obstacle")').val() != undefined)
{
direction = "right";
setCharDynamics(controlsPlayerChar);
return false;
}
$('#' + r_newCell).append($('#' + controlsPlayerChar));
$('#' + r_oldCell + ' ' + '#' + controlsPlayerChar).remove();
// set char direction to 'right' and set next footstep
setDirection('right');
setFootstep(footstep);
setCharDynamics(controlsPlayerChar);
});
}
如果您认为上述脚本有任何问题,请告诉我。我添加 touchstart 事件的方式在脚本的其他区域中是相同的,例如在发起攻击或启动选项菜单时。