i have two mcs, i want this mc to hit another mc which then plays a loud bang. How would i do this? I'll be using a keyboard event to go with it as well.
Thanks
Create a new Flash ActionScript 3 document. be save.
Put your sound like names boom.mp3 in same directory.
Draw a square shape on the stage and convert it into a Movie Clip symbol.
Put a total of 2 instances of this Movie Clip symbol on the stage.
Bring up the Actions panel and add the following code.
Code below, simply drag the mouse to mc1 and mc2 collision when sound is played. is a basic collision with sound playback.
import flash.media.Sound;
import flash.events.MouseEvent;
import flash.net.URLRequest;
mc1.addEventListener(MouseEvent.MOUSE_DOWN, drag);
stage.addEventListener(MouseEvent.MOUSE_UP, drop);
var sound:Sound=new Sound();
sound.load(new URLRequest("boom.mp3"));
function drag(e:MouseEvent):void
{
mc1.startDrag();
}
function drop(e:MouseEvent):void
{
mc1.stopDrag();
if (mc1.hitTestObject(mc2))
{
trace("Collision detected!");
sound.play(0);
}
else
{
trace("No collision.");
}
}
If you want using a KeyboardEvent try this:
function playIsCollision(char:DisplayObject, target:DisplayObject):void
{
if(char.hitTestObject(target))
{
sound.play(0);
}
}
stage.addEventListener(KeyboardEvent.KEY_DOWN, keyDownHandler);
function keyDownHandler(e:KeyboardEvent):void
{
if(e.keyCode == Keyboard.RIGHT)
{
trace("right move");
mc1.x += 1;
playIsCollision(mc1,mc2);
}
else if(e.keyCode == Keyboard.LEFT)
{
trace("left move");
mc1.x -= 1;
playIsCollision(mc1,mc2);
}
else if(e.keyCode == Keyboard.UP)
{
trace("up move");
mc1.y -= 1;
playIsCollision(mc1,mc2);
}
else if(e.keyCode == Keyboard.DOWN)
{
trace("down move");
mc1.y += 1;
playIsCollision(mc1,mc2);
}
}
here is my code: Collision
Related
We have been making this game for our class CPT and you play as a character and try to get through these levels but the issue is that every time you die and go back to play the level again the speed stacks on top of the previous speed to a point where the game isn't even playable anymore. We have tried resetting it and setting it back to 0 but nothing seems to work we also tried to code it so that is the speed goes past 21 it resets back to 20 (our ideal speed) we also tried to remove extra event listeners that could have been stacking on top of the other. and if you do happen to die but get to the next frame the speed goes back to 20 for that frame.But if you die on that frame it doubles the speed on that frame too.Our code is:
import flash.events.Event;
import flash.display.MovieClip;
//makes the character jump
var grav:Number = 10;
var jumping:Boolean = false;
var jumpPow:Number = 0;
stage.addEventListener(KeyboardEvent.KEY_DOWN, whenKeyPressed);
stage.addEventListener(Event.ENTER_FRAME, update);
function whenKeyPressed(event:KeyboardEvent):void
{
if(event.keyCode == Keyboard.UP)
{
if(jumping != true)
{
jumpPow = -50;
jumping = true;
}
}
}
function update(event:Event):void
{
if(jumping)
{
player_mc.y += jumpPow;
jumpPow += grav;
if(player_mc.y >= stage.stageHeight)
{
jumping = false;
player_mc.y = stage.stageHeight;
}
}
//when the character makes it to the other side of the screen, the frame
changes
if (player_mc.hitTestObject(frameChanger1))
{
gotoAndStop(91);
}
//end the game when the character touches the penguin
if (player_mc.hitTestObject(penguin1))
{
gotoAndStop(89);
}
}
//makes the character move left and right
var leftPressed:Boolean = false;
var rightPressed:Boolean = false;
player_mc.addEventListener(Event.ENTER_FRAME, moveInDirectionOfKey);
stage.addEventListener(KeyboardEvent.KEY_DOWN, setKeyPressed);
stage.addEventListener(KeyboardEvent.KEY_UP, unsetKeyPressed);
function moveInDirectionOfKey(event:Event)
{
if (leftPressed)
{
player_mc.x -= 20;
}
if (rightPressed)
{
player_mc.x += 20;
}
}
function setKeyPressed(event:KeyboardEvent):void
{
switch (event.keyCode)
{
case Keyboard.LEFT:
{
leftPressed = true;
break;
}
case Keyboard.RIGHT:
{
rightPressed = true;
break;
}
}
}
function unsetKeyPressed(event:KeyboardEvent):void
{
switch (event.keyCode)
{
case Keyboard.LEFT:
{
leftPressed = false;
break;
}
case Keyboard.RIGHT:
{
rightPressed = false;
break;
}
}
//when the character makes it to the other side of the screen, the frame
changes
if (player_mc.hitTestObject(frameChanger1))
{
gotoAndStop(91);
}
//end the game when the character touches the penguin
if (player_mc.hitTestObject(penguin1))
{
gotoAndStop(89);
}
}
Did You tried :
if(!stage.hasEventListener(Event.ENTER_FRAME)){
stage.addEventListener(Event.ENTER_FRAME, update);
}
if(!stage.hasEventListener(KeyboardEvent.KEY_DOWN)){
stage.addEventListener(KeyboardEvent.KEY_DOWN, setKeyPressed);
}
if(!stage.hasEventListener(KeyboardEvent.KEY_UP)){
stage.addEventListener(KeyboardEvent.KEY_UP, unsetKeyPressed);
}
if(!player_mc.hasEventListener(Event.ENTER_FRAME)){
player_mc.addEventListener(Event.ENTER_FRAME, moveInDirectionOfKey);
}
And so on...
Otherwise You will register the Events multiple times...
This may be the issue.
I'm not sure, I avoid to code on multiple frames.
You may also use the answer of #Philarmon here Function being called faster
I have some problems with my character's walking command. It delays its movement for a bit before it actually moves. And then at times it completely ignores the command to stop walking when I released the key.
Code:
import flash.events.KeyboardEvent;
import flash.ui.Keyboard;
import flash.display.MovieClip;
import flash.events.Event;
import flash.display.Stage;
hero.gotoAndStop(1);
var rightPressed: Boolean = new Boolean(false);
var leftPressed: Boolean = new Boolean(false);
var upPressed: Boolean = new Boolean(false);
var downPressed: Boolean = new Boolean(false)
var heroSpeed: Number = 10;
var keys: Array = [];
stage.addEventListener(KeyboardEvent.KEY_DOWN, keyDownHandler);
stage.addEventListener(KeyboardEvent.KEY_UP, keyUpHandler);
stage.addEventListener(Event.ENTER_FRAME, gameLoop);
stage.addEventListener(KeyboardEvent.KEY_DOWN, onKeyDown);
stage.addEventListener(KeyboardEvent.KEY_UP, onKeyUp);
function keyDownHandler(KeyEvent: KeyboardEvent): void {
if (keys[Keyboard.RIGHT]) {
rightPressed = true;
} else if (keys[Keyboard.LEFT]) {
leftPressed = true;
} else if (keys[Keyboard.DOWN]) {
downPressed = true;
} else if (keys[Keyboard.UP]) {
upPressed = true;
}
}
function keyUpHandler(KeyEvent: KeyboardEvent): void {
if (keys[Keyboard.RIGHT]) {
rightPressed = false;
hero.gotoAndStop(4)
} else if (keys[Keyboard.LEFT]) {
leftPressed = false;
hero.gotoAndStop(2)
} else if (keys[Keyboard.DOWN]) {
downPressed = false;
hero.gotoAndStop(1);
} else if (keys[Keyboard.UP]) {
upPressed = false;
hero.gotoAndStop(3);
}
}
function gameLoop(loopEvent: Event): void {
if (rightPressed) {
hero.x += heroSpeed;
hero.gotoAndStop(8)
}
if (leftPressed) {
hero.x -= heroSpeed;
hero.gotoAndStop(6)
}
if (downPressed) {
hero.y += heroSpeed;
hero.gotoAndStop(5);
}
if (upPressed) {
hero.y -= heroSpeed;
hero.gotoAndStop(7);
}
}
function onKeyDown(e: KeyboardEvent): void {
keys[e.keyCode] = true;
}
function onKeyUp(e: KeyboardEvent): void {
keys[e.keyCode] = false;
}
Warnings:
Scene 1, Layer 'Actions', Frame 1, Line 68, Column 10 Warning: 1090: Migration issue: The onKeyDown event handler is not triggered automatically by Flash Player at run time in ActionScript 3.0. You must first register this handler for the event using addEventListener ( 'keyDown', callback_handler).
Scene 1, Layer 'Actions', Frame 1, Line 72, Column 10 Warning: 1090: Migration issue: The onKeyUp event handler is not triggered automatically by Flash Player at run time in ActionScript 3.0. You must first register this handler for the event using addEventListener ( 'keyUp', callback_handler).
You should get rid of the two extra KeyboardEvent handlers (onKeyUp and onKeyDown), and move the code you have there into keyUpHandler and keyDownHandler. That will solve those migration warnings (because onKeyUp and onKeyDown were special methods in AS2), and it may be the solution to your other problem: I guess sometimes the onKeyDown handler gets executed after keyDownHandler, which means the boolean values in your array are not set yet and no movement will start.
Even better: also get rid of the array with booleans (and keys! you're abusing an Array for Dictionary use) and do it like this:
function keyDownHandler(KeyEvent: KeyboardEvent): void {
if (event.keyCode==Keyboard.RIGHT]) {
rightPressed = true;
}
//etc
}
guys. I created a little game. Nothing actually happening thought, because im not getting my keyboard input. I spend some time trying to create my own taht didnt work. Then I copy/pasted code from official actionscript 3.0 reference page, but tweaked it for my game (but I didnt touch anything related to keyboard stuff). Also the only thing my game returns in cosnole is false
import flash.ui.Keyboard;
import flash.events.Event;
import flash.events.KeyboardEvent;
stop();
var left = false;
var right = false;
var speed = 0.3;
player.addEventListener(KeyboardEvent.KEY_DOWN, keydF);
player.addEventListener(KeyboardEvent.KEY_UP, keyuF);
player.addEventListener(Event.ENTER_FRAME, updF);
function keydF(event:KeyboardEvent):void {
trace("test0");
if(event.keyCode == Keyboard.D) {
trace("test1");
left = true;
}
if(event.keyCode == Keyboard.A) {
right = true;
}
}
function keyuF(event:KeyboardEvent):void {
trace("test2");
if(event.keyCode == Keyboard.D) {
left = false;
}
if(event.keyCode == Keyboard.A) {
right = false;
}
}
function updF(e:Event):void {
if(left) {
level.x -= speed;
}
if(right) {
level.x += speed;
}
trace(left + ""); //always false :\
}
If you want to get the key input to your app, you should add the listeners to the stage :)
Does anyone know how to move a movie clip by clicking a button on the stage. I can get it to move in increments, but I want it to move constantly. Currently I have this:
down.addEventListener(MouseEvent.MOUSE_DOWN, arrowDown);
function arrowDown(event:MouseEvent):void
{
bottomArrow.y += 1;
}
First, you should listen for KeyboardEvents instead of MouseEvent. Then I think you should listen for those events being dispatched by the stage.
Here is an example using the Event.ENTER_FRAME event. If you'd like to control better the speed of you sprite moves you might want to user a timer instead.
This example works when the down arrow is pressed but you can change Keyboard.DOWN with any key you want.
stage.addEventListener(KeyboardEvent.KEY_DOWN, onKeyDown);
stage.addEventListener(KeyboardEvent.KEY_UP, onKeyUp);
function onKeyDown(event:KeyboardEvent):void
{
if (event.keyCode == Keyboard.DOWN)
{
stage.addEventListener(Event.ENTER_FRAME, onEnterFrame);
}
}
function onKeyUp(event:KeyboardEvent):void
{
if (event.keyCode == Keyboard.DOWN)
{
stage.removeEventListener(Event.ENTER_FRAME, onEnterFrame);
}
}
function onEnterFrame(event:Event):void
{
bottomArrow.y += 1;
}
Hey is there a way to have certain keys do one thing on one page and then different on another, as i use
But then on next frame i cant use space bar again to do another task?
Any help would be appreciated
stop();
stage.addEventListener(KeyboardEvent.KEY_DOWN, myKeyDownn);
function myKeyDownn(e:KeyboardEvent):void {
if (e.keyCode == Keyboard.SPACE){
gotoAndPlay("welcome");
}
}
just remove the listener before you leave the frame.
stop();
stage.addEventListener(KeyboardEvent.KEY_DOWN, myKeyDownn);
function myKeyDownn(e:KeyboardEvent):void {
if (e.keyCode == Keyboard.SPACE){
stage.removeEventListener(KeyboardEvent.KEY_DOWN, myKeyDownn);
gotoAndPlay("welcome");
}
}
in the frame "welcome" add the same code again and just change the gotoAndPlay() part.
stop();
stage.addEventListener(KeyboardEvent.KEY_DOWN, myKeyDownn);
function myKeyDownn(e:KeyboardEvent):void {
if (e.keyCode == Keyboard.SPACE){
stage.removeEventListener(KeyboardEvent.KEY_DOWN, myKeyDownn);
gotoAndPlay("a different frame");
}
}