我目前在桌面浏览器中使用它,但在触控设备上没有,因为我在鼠标悬停时更新了我需要的变量。因此,为了解决这个问题,我试图检查两个容器之间的碰撞检测,然后更新所需的变量。当检测到两者之间的碰撞时,项目应该捕捉到占位符位置。问题是项目和占位符是动态放置的,任何项目必须能够捕捉到任何占位符。
var placeholders,items,selectedItem,collision,startX, startY, snapX, snapY, xpos, ypos;
var stage = new createjs.Stage("canvas");
createjs.Touch.enable(stage);
createjs.Ticker.addEventListener("tick", tick);
function init(){
xpos = 0;
ypos = 120;
container = new createjs.Container();
stage.addChild(container);
placeholders = new createjs.Container();
placeholders.name = "placeholders"
stage.addChild(placeholders);
items = new createjs.Container();
stage.addChild(items);
for(i=0;i<2;i++){
placeholder = new CustomContainer(i, "#ff0000", 100,100);
placeholder.setBounds(0,0,100,100);
placeholder.cursor = "pointer";
placeholder.x = xpos;
placeholder.name = "placeholder"+i
container.addChild(placeholder)
xpos+= (placeholder.getBounds().width + 10);
}
xpos = 0;
for(j=0;j<2;j++){
item = new CustomContainer(j, "#0000ff", 100,100);
item.active = false;
item.setBounds(0,0,100,100);
item.name = "item"+j;
item.x = xpos;
item.y = ypos;
item.startX = xpos;
item.startY = ypos;
container.addChild(item)
item.addEventListener("mousedown", selectItem);
xpos+= (item.getBounds().width + 10);
}
stage.addChild(placeholders,items);
}
function selectItem(evt) {
selectedItem = evt.target.parent;
selectedItem.mouseEnabled = false;
evt.addEventListener("mousemove", function(ev) {
moveItem(ev);
})
evt.addEventListener("mouseup", function(ev) {
selectedItem.mouseEnabled = true;
if(collision){
//New position based on the hitTest
//selectedItem.x = ;
//selectedItem.y = ;
}else{
selectedItem.x = selectedItem.startX;
selectedItem.y = selectedItem.startY;
}
})
}
function moveItem(evt){
pt = placeholders.globalToLocal(stage.mouseX, stage.mouseY);
obj = evt.target.parent;
obj.x = pt.x - 50;
obj.y = pt.y - 50;
//selectedItem collision with placeholder
collision = obj.hitTest(pt.x,pt.y)
}
function tick(evt) {
stage.update();
}
$(document).ready(init());
我只是没有让hitTest正确。您可以在下面看到工作代码。
答案 0 :(得分:0)
最热门测试将测试像素完美命中。我相信你正在寻找碰撞测试。 试试这个:https://github.com/olsn/Collision-Detection-for-EaselJS