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手机摇动算法:摇一次只要 x 或y 正负之间变化并超过指定的幅度,就得一分。
cc.inputManager.setAccelerometerEnabled(true);
cc.systemEvent.on(cc.SystemEvent.EventType.DEVICEMOTION, this.onDeviceMotionEvent, this);
onDeviceMotionEvent :function (event) {
var nowGX = event.acc.x.toFixed(2);
var nowGY = event.acc.y.toFixed(2);
var nowGZ = event.acc.z.toFixed(2);
if(this._isGetScore3(nowGX,nowGY)){
this.score += 1;
this.scoreDisplay.string = this.score.toString();
}
},
_isGetScore3(nowGX,nowGY){
var stand_x = 0.25;
var stand_y = 0.25;
if(this.x_prev_tag){ //前一次为 正
stand_x = -stand_x;
if(nowGX <= stand_x){
var cur_x_tag = false;
}else{
var cur_x_tag = true;
}
}else { //前一次为负
if(nowGX >= stand_x){
var cur_x_tag = true;
}else{
var cur_x_tag = false;
}
}
if(this.y_prev_tag){ //前一次为 正
stand_y = -stand_y;
if(nowGY <= stand_y){
var cur_y_tag = false;
}else{
var cur_y_tag = true;
}
}else { //前一次为负
if(nowGY >= stand_y){
var cur_y_tag = true;
}else{
var cur_y_tag = false;
}
}
var x_is = false;
var y_is = false;
if(( this.x_prev_tag == true && cur_x_tag == false) ||
(this.x_prev_tag == false && cur_x_tag == true)
){
//console.log('x prev:cur==',this.x_prev_val, '##',nowGX);
this.x_prev_val = nowGX;
this.x_prev_tag = cur_x_tag;
x_is = true;
}
if((this.y_prev_tag == true && cur_y_tag == false) ||
(this.y_prev_tag == false && cur_y_tag == true)
){
//console.log('y prev:cur==', this.y_prev_val, '##',nowGY)
this.y_prev_val = nowGY;
this.y_prev_tag = cur_y_tag;
y_is = true;
}
return x_is || y_is;
},