ARTDM 170 Week 8: Scripting Interactivity

ARTDM 170, Week 8: Scripting Interactivity
Gilbert Guerrerogguerrero@dvc.edugilbertguerrero.com/blog/artdm-170

Homework
Please put your .swf file in a folder with your last name and first initial
Put the folder in my dropbox
Example: smith-hmyAnimation.swf

Open Flash
Create a new ActionScript 3.0 document:MyObject.fla
Create a new ActionScript file:MyObject.as

Frame by Frame Animation

Frame by Frame
Create a new Movie Clip symbol
Add keyframes for each new frame of the animation
Drag the animation to the stage and test your movie

Using Objects on the Stage

Adding Objects
Drag an instance of a symbol to the stage
Name the instance: myObject
Now you have an object that you can refer to in your code:myObject.x = 100;

Dragging Objects

Dragging
Use functions to both start and stop the dragging as well as to add new event listeners:
private function startDragging(event:MouseEvent) {stage.addEventListener(MouseEvent.MOUSE_UP, stopDragging);myCircle.startDrag();}private function stopDragging(event:MouseEvent) {stage.removeEventListener(MouseEvent.MOUSE_UP, stopDragging);myCircle.stopDrag();}
The event listeners are added to the stage just in case the user moves around too quickly or somehow is not on the object when clicking or releasing the mouse.

Throwing Objects

Throwing Velocity
To throw an object you want to make sure the values for velocity (moveX and moveY) are updated according to the where the user has moved the object and it’s change in location over time.
private function trackVelocity(event:Event):void {
moveX = myCircle.x - oldX;
moveY = myCircle.y - oldY;
oldX = myCircle.x;
oldY = myCircle.y;
}

Homework, due Oct 14
Create a Title and Description for your final project
Create a new frame by frame animation
Move your animation using scripts