making two animations at once in A-frame

For example, by using camera rig, I want to move from A to B then B to C in just one single click. I normally write “to 0 0 0” in the event “onclick”.

I want trigger both animations “1” and “1_1”. At the moment it is only the “1_1” that is triggered by a click. I’m using a timeline from https://www.npmjs.com/package/aframe-animation-timeline-component

My code can be found in https://glitch.com/edit/#!/winter-deserted-topaz

Answer

The topic is general, so I’ll split it into separate cases:

1. Firing two simultaneous animations

   If the animation components within an entity share an event ( defined in startEvents ) they will all fire at once:

       <script src="https://aframe.io/releases/1.2.0/aframe.min.js"></script>
       <a-scene cursor="rayOrigin: mouse">
         <a-box position="0 1 -3" rotation="0 45 0" scale="0.25 0.25 0.25" color="#4CC3D9" 
   
         animation__rotation="property: rotation; from: 0 45 0; to: 0 405 0; dur: 4000; 
         easing: linear; startEvents: click" 
   
         animation__scale="property: scale; from: 0.25 0.25 0.25; to: 1.5 1.5 1.5; dur: 2000; 
         dir: alternate; easing: linear; loop: 2; startEvents: click">
         </a-box>
       </a-scene>

2. Starting an animation after another one is finished

   You can wait for one animation to finish and start another one with a bit of javascript.

   You can determine if an animation has ended with the animationcomplete__(ID is the ‘name’ string after the animation__ bit) event.

   Then you can emit a signal, which starts the second animation:

       <script src="https://aframe.io/releases/1.2.0/aframe.min.js"></script>
       <script>
         AFRAME.registerComponent("animation-manager", {
           init: function() {
             // wait for the first animation to finish
             this.el.addEventListener("animationcomplete__first", e => {
               // start the second animation
               this.el.emit("second")
             })
           }
         })
       </script>
       <a-scene cursor="rayOrigin: mouse">
         <a-box position="0 1 -3" rotation="0 45 0" scale="0.25 0.25 0.25" animation-manager color="#4CC3D9" 
         animation__first="property: rotation; from: 0 45 0; to: 0 405 0; dur: 2000; 
         easing: linear; startEvents: click" 
         animation__second="property: scale; from: 0.25 0.25 0.25; to: 1.5 1.5 1.5; dur: 2000; 
         dir: alternate; easing: linear; loop: 2; startEvents: second">
         </a-box>
       </a-scene>