Flash or Director for a Platform Game
Hi all,
First of all, I want to say that this post is not meant to
start another fight about these 2 great app, I just want your
advice about which one can give me better performance on the web. I
feel comfortable using Lingo and Actioscript 3, however I am not a
programmer but I can do things move. I am posting here because, I
know many Director users are now using Flash.
These are some considerations:
1. If I go for Actionscript 3 the game will be Tile-Based
2.Using Tile-Based with AS3, I think, copyPixel will be a
good option
3. If I go for Director both techniques, Art-Based and Tile
Based are valid options
4. I have not decide which collision method to use in both
cases
5. I will need connection to MySql, with Flash I know how to
do it, with Director I do not
My concern is performance, not programming. I will appreciate
your feedback
Regards
It's okay but it limits your chances of getting help.
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Adobe Flash CS5 Platform Game Movement With Arrow Keys Help!?
Hello, I am a beginner to flash gaming. I am making a platform game, but can not reverse my character when he goes backwards. This is my code for left and right:
if (Key.isDown(Key.RIGHT)) {
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How Can I reverse it so when it goes LEFT, the character turns all the way around?Ok, I fiured it all out, the other way you mentioned. Just opened up the character MC, and named 2 frames. One LEFT and one RIGHT. Then I added a few simple lines of code, and turned out with this:
if (Key.isDown(Key.RIGHT)) {
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onslaught,
I really like bounce on it feels a lot like Super Mario Bros. To me. You can try out the lite version for free. http://itunes.apple.com/WebObjects/MZStore.woa/wa/viewSoftware?id=303583418&mt=8 The final version though is $ 3.99 found here: http://itunes.apple.com/WebObjects/MZStore.woa/wa/viewSoftware?id=300438180&mt=8
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VOTE FOR AAA APPS/GAMES/WEBSITES FLASH CAPABILITY!
There is only one way to run Flash stage3D perfectly smoothly, in today's crowded browsers. This is the suggestion I made:
<<Give the user the option to make the current Flash window that is in focus, run in 'exclusive mode' with the click of a button, (by pausing all other Flash instances in all other browser tabs). So when there is a demanding stage3D app/website/game the user would switch to 'exclusive mode' and make it run without stuttering, enjoying the full PC power. This will boost Flash on the web for demanding AAA games/applications/websites running on the browser and will improve the overall user experience. Then Flash could be used literally for anything, even to provide content for today's UltraHD TVs with the recent extended profile! Now If the user switches to another window or loads another website, Flash would exit exclusive mode automatically and everything will run as usual, until the user decides to switch to exclusive mode again. I think there are no disadvantages with this suggestion, only benefits. It will give more power to the user and to Flash.>>
(Note: This is an improved version of a previous suggestion I made)
Vote on the following link:
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John -
Error #1009 in my Platform Game! Please Help!!!
In my basic platform game I have a "hero" that can walk and jump on the "ground." There is also a door to the next scene, which is the next level.The first scene works fine, but "TypeError: Error #1006: value is not a function. at Charles3_fla::MainTimeline/frame1()" pops up once in the output. It works however, and I'm not worried about it. The second I go throught the door though, Scene 2 opens, but then starts flashing as "TypeError: Error #1009: Cannot access a property or method of a null object reference. at Charles3_fla::MainTimeline/onenter()" pops up A LOT in the output. I don't know how to fix it, and would like help. P.S. I am using Adobe CS5 with actionscript 3
Here is the code for Scene 1:
hero.gotoAndStop('still');
var Key:KeyObject = new KeyObject(stage);
var vy:Number=0;
var gravity:Number=2;
var jumped:Boolean = false;
stage.addEventListener(Event.ENTER_FRAME,onenter)(true);
function onenter(e:Event):void{
vy+=gravity;
if(! ground.hitTestPoint(hero.x,hero.y,true)) {
hero.y+vy;
if(ground.hitTestPoint(hero.x+(hero.width/2), hero.y-(hero.height/2), true)) {
hero.x-=13;
if(ground.hitTestPoint(hero.x-(hero.width/2), hero.y-(hero.height/2), true)) {
hero.x+=13;
if (vy>10) {
vy=10;
for (var i:int = 0; i<10; i++) {
if (ground.hitTestPoint(hero.x,hero.y,true)) {
hero.y--;
vy=6;
jumped=true;
if(door.hitTestObject(hero)){
gotoAndPlay(1,"Scene 2");
if(hero.y>300){
vy=6;
jumped=true;
if(Key.isDown(Key.UP) && jumped){
vy=-13;
jumped=false;
hero.y+=vy;
if(Key.isDown(Key.RIGHT)){
hero.x+=10;
hero.scaleX=1;
hero.gotoAndStop('walking');
}else if(Key.isDown(Key.LEFT)){
hero.x-=10;
hero.scaleX=-1;
hero.gotoAndStop('walking');
}else{
hero.gotoAndStop('still');
And for Scene 2...
hero.gotoAndStop('still');
var Key1:KeyObject =KeyObject(stage);
var vy1:Number=0;
var gravity1:Number=2;
var jumped1:Boolean = false;
stage.addEventListener(Event.ENTER_FRAME,onenter1)(true);
function onenter1(e:Event):void{
vy1+=gravity;
if(! ground.hitTestPoint(hero.x,hero.y,true)) {
hero.y+vy;
if(ground.hitTestPoint(hero.x+(hero.width/2), hero.y-(hero.height/2), true)) {
hero.x-=13;
if(ground.hitTestPoint(hero.x-(hero.width/2), hero.y-(hero.height/2), true)) {
hero.x+=13;
if (vy1>10) {
vy1=10;
for (var i:int = 0; i<10; i++) {
if (ground.hitTestPoint(hero.x,hero.y,true)) {
hero.y--;
vy1=6;
jumped1=true;
if(door.hitTestObject(hero)){
gotoAndPlay(1,"Scene 2");
if(hero.y>300){
vy1=6;
jumped1=true;
if(Key.isDown(Key.UP) && jumped1){
vy1=-13;
jumped1=false;
hero.y+=vy;
if(Key.isDown(Key.RIGHT)){
hero.x+=10;
hero.scaleX=1;
hero.gotoAndStop('walking');
}else if(Key.isDown(Key.LEFT)){
hero.x-=10;
hero.scaleX=-1;
hero.gotoAndStop('walking');
}else{
hero.gotoAndStop('still');
Please reply as soon as possible, and thanks for your time
swiatekalex555Ok sorry about my misunderstanding. Here's the code with the errors Highlighted. I also downloaded a "KeyObject.as" package, and the contents of that are on the bottom.
hero.gotoAndStop('still');
var Key:KeyObject = new KeyObject(stage);
var vy:Number=0;
var gravity:Number=2;
var jumped:Boolean = false;
stage.addEventListener(Event.ENTER_FRAME,onenter)(true);
function onenter(e:Event):void{
vy+=gravity;
if(! ground.hitTestPoint(hero.x,hero.y,true)) {
hero.y+vy;
if(ground.hitTestPoint(hero.x+(hero.width/2), hero.y-(hero.height/2), true)) {
hero.x-=13;
if(ground.hitTestPoint(hero.x-(hero.width/2), hero.y-(hero.height/2), true)) {
hero.x+=13;
if (vy>10) {
vy=10;
for (var i:int = 0; i<10; i++) {
if (ground.hitTestPoint(hero.x,hero.y,true)) {
hero.y--;
vy=6;
jumped=true;
if(door.hitTestObject(hero)){
gotoAndPlay(1,"Scene 2");
if(hero.y>300){
vy=6;
jumped=true;
if(Key.isDown(Key.UP) && jumped){
vy=-13;
jumped=false;
hero.y+=vy;
if(Key.isDown(Key.RIGHT)){
hero.x+=10;
hero.scaleX=1;
hero.gotoAndStop('walking');
}else if(Key.isDown(Key.LEFT)){
hero.x-=10;
hero.scaleX=-1;
hero.gotoAndStop('walking');
}else{
hero.gotoAndStop('still');
And for Scene 2...
hero.gotoAndStop('still');
var Key1:KeyObject =KeyObject(stage);
var vy1:Number=0;
var gravity1:Number=2;
var jumped1:Boolean = false;
stage.addEventListener(Event.ENTER_FRAME,onenter1)(true);
function onenter1(e:Event):void{
vy1+=gravity;
if(! ground.hitTestPoint(hero.x,hero.y,true)) {
hero.y+vy;
if(ground.hitTestPoint(hero.x+(hero.width/2), hero.y-(hero.height/2), true)) {
hero.x-=13;
if(ground.hitTestPoint(hero.x-(hero.width/2), hero.y-(hero.height/2), true)) {
hero.x+=13;
if (vy1>10) {
vy1=10;
for (var i:int = 0; i<10; i++) {
if (ground.hitTestPoint(hero.x,hero.y,true)) {
hero.y--;
vy1=6;
jumped1=true;
if(door.hitTestObject(hero)){
gotoAndPlay(1,"Scene 2");
if(hero.y>300){
vy1=6;
jumped1=true;
if(Key.isDown(Key.UP) && jumped1){
vy1=-13;
jumped1=false;
hero.y+=vy;
if(Key.isDown(Key.RIGHT)){
hero.x+=10;
hero.scaleX=1;
hero.gotoAndStop('walking');
}else if(Key.isDown(Key.LEFT)){
hero.x-=10;
hero.scaleX=-1;
hero.gotoAndStop('walking');
}else{
hero.gotoAndStop('still');
the KeyObject.as
package {
import flash.display.Stage;
import flash.events.KeyboardEvent;
import flash.ui.Keyboard;
import flash.utils.Proxy;
import flash.utils.flash_proxy;
* The KeyObject class recreates functionality of
* Key.isDown of ActionScript 1 and 2
* Usage:
* var key:KeyObject = new KeyObject(stage);
* if (key.isDown(key.LEFT)) { ... }
dynamic public class KeyObject extends Proxy {
private static var stage:Stage;
private static var keysDown:Object;
public function KeyObject(stage:Stage) {
construct(stage);
public function construct(stage:Stage):void {
KeyObject.stage = stage;
keysDown = new Object();
stage.addEventListener(KeyboardEvent.KEY_DOWN, keyPressed);
stage.addEventListener(KeyboardEvent.KEY_UP, keyReleased);
flash_proxy override function getProperty(name:*):* {
return (name in Keyboard) ? Keyboard[name] : -1;
public function isDown(keyCode:uint):Boolean {
return Boolean(keyCode in keysDown);
public function deconstruct():void {
stage.removeEventListener(KeyboardEvent.KEY_DOWN, keyPressed);
stage.removeEventListener(KeyboardEvent.KEY_UP, keyReleased);
keysDown = new Object();
KeyObject.stage = null;
private function keyPressed(evt:KeyboardEvent):void {
keysDown[evt.keyCode] = true;
private function keyReleased(evt:KeyboardEvent):void {
delete keysDown[evt.keyCode];
Help if you can,
swiatekalex555 -
Help Please!!! AS3 Platform game
I am creating a a platform game for one of my classes. I am not fimilar with Flash and I am having trouble with the coding. I keep getting this error message
TypeError: Error #1009: Cannot access a property or method of a null object reference.
at TheBallMan2_fla::MainTimeline/frame4()
at flash.display::MovieClip/gotoAndStop()
at TheBallMan2_fla::MainTimeline/fl_ClickToGoToAndStopAtFrame_12()
TheBallMan2 is the name I have my project saved as.
My partner did all the coding but he doesn't really know what he is doing either. The character is supposed to move with the arrow keys which it did until we added the collision code. Here is our coding...which we got from following a tutorial online.
/* Click to Go to Frame and Stop
Clicking on the specified symbol instance moves the playhead to the specified frame in the timeline and stops the movie.
Can be used on the main timeline or on movie clip timelines.
Instructions:
1. Replace the number 5 in the code below with the frame number you would like the playhead to move to when the symbol instance is clicked.
About.addEventListener(MouseEvent.CLICK, fl_ClickToGoToAndStopAtFrame_3);
function fl_ClickToGoToAndStopAtFrame_3(event:MouseEvent):void
gotoAndStop(2);
/* Click to Go to Frame and Stop
Clicking on the specified symbol instance moves the playhead to the specified frame in the timeline and stops the movie.
Can be used on the main timeline or on movie clip timelines.
Instructions:
1. Replace the number 5 in the code below with the frame number you would like the playhead to move to when the symbol instance is clicked.
Help.addEventListener(MouseEvent.CLICK, fl_ClickToGoToAndStopAtFrame_4);
function fl_ClickToGoToAndStopAtFrame_4(event:MouseEvent):void
gotoAndStop(3);
/* Click to Go to Frame and Stop
Clicking on the specified symbol instance moves the playhead to the specified frame in the timeline and stops the movie.
Can be used on the main timeline or on movie clip timelines.
Instructions:
1. Replace the number 5 in the code below with the frame number you would like the playhead to move to when the symbol instance is clicked.
PlayButton.addEventListener(MouseEvent.CLICK, fl_ClickToGoToAndStopAtFrame_12);
function fl_ClickToGoToAndStopAtFrame_12(event:MouseEvent):void
gotoAndStop(4);
/* Click to Go to Frame and Stop
Clicking on the specified symbol instance moves the playhead to the specified frame in the timeline and stops the movie.
Can be used on the main timeline or on movie clip timelines.
Instructions:
1. Replace the number 5 in the code below with the frame number you would like the playhead to move to when the symbol instance is clicked.
if(Ground.hitTestPoint(Char.x + leftBumpPoint.x, Char.y + leftBumpPoint.y, true)){
trace("leftBumping");
leftBumping = true;
} else {
leftBumping = false;
if(Ground.hitTestPoint(Char.x + rightBumpPoint.x, Char.y + rightBumpPoint.y, true)){
trace("rightBumping");
rightBumping = true;
} else {
rightBumping = false;
if(Ground.hitTestPoint(Char.x + upBumpPoint.x, Char.y + upBumpPoint.y, true)){
trace("upBumping");
upBumping = true;
} else {
upBumping = false;
if(Ground.hitTestPoint(Char.x + downBumpPoint.x, Char.y + downBumpPoint.y, true)){
trace("downBumping");
downBumping = true;
} else {
downBumping = false;
var leftBumping:Boolean = false;
var rightBumping:Boolean = false;
var upBumping:Boolean = false;
var downBumping:Boolean = false;
var leftBumpPoint:Point = new Point(-30, -55);
var rightBumpPoint:Point = new Point(30, -55);
var upBumpPoint:Point = new Point(0, -120);
var downBumpPoint:Point = new Point(0, 0);
/* Move with Keyboard Arrows
Allows the specified symbol instance to be moved with the keyboard arrows.
Instructions:
1. To increase or decrease the amount of movement, replace the number 5 below with the number of pixels you want the symbol instance to move with each key press.
Note the number 5 appears four times in the code below.
Char.addEventListener(Event.ENTER_FRAME, fl_MoveInDirectionOfKey_4);
stage.addEventListener(KeyboardEvent.KEY_DOWN, fl_SetKeyPressed_4);
stage.addEventListener(KeyboardEvent.KEY_UP, fl_UnsetKeyPressed_4);
function fl_MoveInDirectionOfKey_4(event:Event)
if (upPressed)
Char.y -= 0;
if (downPressed)
Char.y += 0;
if (leftPressed)
Char.x -= 0;
if (rightPressed)
Char.x += 0;
function fl_SetKeyPressed_4(event:KeyboardEvent):void
switch (event.keyCode)
case Keyboard.UP:
upPressed = true;
break;
case Keyboard.DOWN:
downPressed = true;
break;
case Keyboard.LEFT:
leftPressed = true;
break;
case Keyboard.RIGHT:
rightPressed = true;
break;
function fl_UnsetKeyPressed_4(event:KeyboardEvent):void
switch (event.keyCode)
case Keyboard.UP:
upPressed = false;
break;
case Keyboard.DOWN:
downPressed = false;
break;
case Keyboard.LEFT:
leftPressed = false;
break;
case Keyboard.RIGHT:
rightPressed = false;
break;
var leftPressed:Boolean = false;
var rightPressed:Boolean = false;
var upPressed:Boolean = false;
var downPressed:Boolean = false;
var xScrollSpeed:int = 10;
var yScrollSpeed:int = 10;
function keyDownHandler(e:KeyboardEvent):void{
if(e.keyCode == Keyboard.LEFT){
leftPressed = true;
} else if(e.keyCode == Keyboard.RIGHT){
rightPressed = true;
} else if(e.keyCode == Keyboard.UP){
upPressed = true;
} else if(e.keyCode == Keyboard.DOWN){
downPressed = true;
function keyUpHandler(e:KeyboardEvent):void{
if(e.keyCode == Keyboard.LEFT){
leftPressed = false;
} else if(e.keyCode == Keyboard.RIGHT){
rightPressed = false;
} else if(e.keyCode == Keyboard.UP){
upPressed = false;
} else if(e.keyCode == Keyboard.DOWN){
downPressed = false;
stage.addEventListener(Event.ENTER_FRAME, loop);
var scrollX:int = 0;
var scrollY:int = 0;
var ySpeed:int = 0;
var xSpeed:int = 0;
var speedConstant:int = 5;
var friction:Number = 0.95;
function loop(e:Event):void{
if(leftPressed){
xSpeed -= speedConstant;
} else if(rightPressed){
xSpeed += speedConstant;
if(upPressed){
ySpeed -= speedConstant;
} else if(downPressed){
ySpeed += speedConstant;
if(leftBumping){
if(xSpeed < 0){
xSpeed *= -0.5;
if(rightBumping){
if(xSpeed > 0){
xSpeed *= -0.5;
if(upBumping){
if(ySpeed < 0){
ySpeed *= -0.5;
if(downBumping){
if(ySpeed > 0){
ySpeed *= -0.5;
xSpeed *= friction;
ySpeed *= friction;
scrollX -= xSpeed;
scrollY -= ySpeed;
Ground.x = scrollX;
Ground.y = scrollY;click file>publish settings>swf and tick "permit debugging". retest.
the line number of the code that references a non-existant object will be in the error message.
if you need more help than that, indicate the copy and paste the error message and the line number referenced at the top of the error message. -
Make Flash Plug-In for Firefox Remember Privacy Settings for Camera and Mic Access on Local File
My company is using Flash Player to develop some kiosk-style applications to run on a standalone computer (no network connection). This computer will contain web pages containing Flash content. They will be opened from the local HD with Firefox with the Adobe Flash plug-in (v11.7.700.224). One of the applications accesses the microphone hooked up to the computer. When this application is started, it always asks for permission for "local" to access the microphone and camera. In previous versions of our system, we could click "Remember" if we did it once and that would make it so it wouldn't ask for permissions again (in this case, the Remember option isn't available, and the site settings don't even offer the Privace tab). However, in the previous case, we were running IE with a previous ActiveX Flash version (unfortunately, this approach is no longer available as we have had to switch to Windows 8 and that changes the game with IE and Flash entirely).
At this point, we have tried to use the Global Settings for "Camera and Microphone Settings by Site..." to enter "Local" as an always allowed site. This does not seem to have any effect. We also tried entering the root directory of the applications in "Trusted Location Settings", but that also seemed to have no effect.
I'm not sure what has fundamentally changed here. I think there might be some differences in the Plug-In version (compared to ActiveX), but I'm not sure what they might be or how to do the same thing as before.
Any help would be appreciated. Thanks in advance.
TorreyChris,
We learned that the Privacy tab (in Settings) can be found under the Flash plug-in for Firefox, but only if Firefox is running under an administrator.
Unfortunately, we haven't had much luck with the mms.cfg file. The following was used in the mms.cfg file (placed in both the %WINDIR%\SysWow64\Macromed\Flash and %WINDIR%\System32\Macromed\Flash” directories):
AVHardwareDisable = 0
AVHardwareEnabledDomain = local
AVHardwareEnabledDomain = 127.0.0.1
AVHardwareEnabledDomain = localhost
AutoUpdateDisable = 1
The AVHardwareEnabledDomain settings seem to be getting ignored regardless of whether the user is a standard user or an administrator. I also checked to make sure it wasn't just a local problem by going to a website that uses a microphone (http://www.testden.com/accent-reduction/systemcheck.htm). Adding the requested domain to the list (AVHardwareEnabledDomain = train.act360.com) still didn't bypass the allow/deny dialog box.
We know that the mms.cfg file is being read because setting "AVHardwareDisable = 1" will result in no prompt and that section being greyed out in Global Settings. I saw a post that suggested this setting was required to even make the AVHardwareEnabledDomain work, but it seems to block the local entirely and still brings up the dialog query on the internet site.
Thanks,
Torrey -
I can't solve this for days already... When the hero object dies, the floorObject do not remove completely, such that one of them remains. And the hero object
disappears. Thanks for all the help.
package
import flash.display.MovieClip;
import flash.events.KeyboardEvent;
import flash.events.*;
import flash.utils.getTimer;
public class Platform extends MovieClip
// movement constants
static const gravity:Number = .004;
// screen constants
static const edgeDistance:Number = 100;
// object arrays
private var fixedObjects:Array;
private var otherObjects:Array;
// hero and enemies
private var hero:Object;
private var enemies:Array;
// game state
private var playerObjects:Array;
private var gameScore:int;
private var gameMode:String = "start";
private var playerLives:int;
private var lastTime:Number = 0;
private var currentX:int = 0;
public function startPlatformGame()
// constructor code
gameMode = "play";
public function startGameLevel()
createHero();
addEnemies();
// examine level and note all objects
examineLevel();
// add listeners
this.addEventListener(Event.ENTER_FRAME,gameLoop);
stage.addEventListener(KeyboardEvent.KEY_DOWN,keyDownFunction);
stage.addEventListener(KeyboardEvent.KEY_UP,keyUpFunction);
// set game state
gameMode = "play";
public function createHero()
hero = new Object();
hero.mc = gamelevel.hero;
hero.dx = 0.0;
hero.dy = 0.0;
hero.inAir = false;
hero.direction = 1;
hero.animstate = "stand";
hero.walkAnimation = new Array(2,3,4,5,6,7,8);
hero.animstep = 0;
hero.jump = false;
hero.moveLeft = false;
hero.moveRight = true;
hero.jumpSpeed = .8;
hero.walkSpeed = .15;
hero.width = 30.0;
hero.height = 40.0;
hero.startx = hero.mc.x;
hero.starty = hero.mc.y;
public function addEnemies() {
enemies = new Array();
var i:int = 1;
while (true) {
if (gamelevel["enemy"+i] == null) break;
var enemy = new Object();
enemy.mc = gamelevel["enemy"+i];
enemy.dx = 0.0;
enemy.dy = 0.0;
enemy.inAir = false;
enemy.direction = 1;
enemy.animstate = "stand"
enemy.walkAnimation = new Array(2,3,4,5);
enemy.animstep = 0;
enemy.jump = false;
enemy.moveRight = true;
enemy.moveLeft = false;
enemy.jumpSpeed = 1.0;
enemy.walkSpeed = .08;
enemy.width = 30.0;
enemy.height = 30.0;
enemies.push(enemy);
i++;
public function examineLevel()
fixedObjects = new Array();
otherObjects = new Array();
for (var i:int=0; i<this.gamelevel.numChildren; i++)
var mc = this.gamelevel.getChildAt(i);
// add floors and walls to fixedObjects
if (mc is Floor)
var floorObject:Object = new Object();
floorObject.mc = mc;
floorObject.leftside = mc.x;
floorObject.rightside = mc.x + mc.width;
floorObject.topside = mc.y;
floorObject.bottomside = mc.y + mc.height;
fixedObjects.push(floorObject);
else if ((mc is Treasure) )
otherObjects.push(mc);
fixedObjects.sortOn("leftside" , Array.NUMERIC );
for each (floorObject in fixedObjects)
trace(floorObject.leftside);
// add treasure, key and door to otherOjects;
public function keyDownFunction(event:KeyboardEvent)
if (gameMode != "play")
return;
}// don't move until in play mode
if (event.keyCode == 37)
hero.moveLeft = true;
else if (event.keyCode == 39)
hero.moveRight = true;
else if (event.keyCode == 32)
if (! hero.inAir)
hero.jump = true;
public function keyUpFunction(event:KeyboardEvent)
if (event.keyCode == 37)
hero.moveLeft = false;
else if (event.keyCode == 39)
hero.moveRight = false;
public function gameLoop(event:Event)
// get time differentce
if (lastTime == 0)
lastTime = getTimer();
var timeDiff:int = getTimer() - lastTime;
lastTime += timeDiff;
// only perform tasks if in play mode
if (gameMode == "play")
moveCharacter(hero,timeDiff);
checkCollisions();
scrollWithHero();
death();
public function moveCharacter(char:Object,timeDiff:Number)
if (timeDiff < 1)
return;
// assume character pulled down by gravity
var verticalChange:Number = char.dy * timeDiff + timeDiff * gravity;
if (verticalChange > 15.0)
verticalChange = 15.0;
char.dy += timeDiff * gravity;
// react to changes from key presses
var horizontalChange = 0;
var newAnimState:String = "stand";
var newDirection:int = char.direction;
if (char.moveLeft)
// walk left
horizontalChange = - char.walkSpeed * timeDiff;
newAnimState = "walk";
newDirection = -1;
else if (char.moveRight)
// walk right
horizontalChange = char.walkSpeed * timeDiff;
newAnimState = "walk";
newDirection = 1;
if (char.jump)
// start jump
char.jump = false;
char.dy = - char.jumpSpeed;
verticalChange = - char.jumpSpeed;
newAnimState = "jump";
// assume no wall hit, and hanging in air
char.hitWallRight = false;
char.hitWallLeft = false;
char.inAir = true;
// find new vertical position
var newY:Number = char.mc.y + verticalChange;
// loop through all fixed objects to see if character has landed
for (var i:int=0; i<fixedObjects.length; i++)
if ((char.mc.x+char.width/2 > fixedObjects[i].leftside) && (char.mc.x-char.width/2 < fixedObjects[i].rightside))
if ((char.mc.y <= fixedObjects[i].topside) && (newY > fixedObjects[i].topside))
newY = fixedObjects[i].topside;
char.dy = 0;
char.inAir = false;
break;
// find new horizontal position
var newX:Number = char.mc.x + horizontalChange;
// loop through all objects to see if character has bumped into a wall
for (i=0; i<fixedObjects.length; i++)
if ((newY > fixedObjects[i].topside) && (newY-char.height < fixedObjects[i].bottomside))
if ((char.mc.x-char.width/2 >= fixedObjects[i].rightside) && (newX-char.width/2 <= fixedObjects[i].rightside))
newX = fixedObjects[i].rightside + char.width / 2;
char.hitWallLeft = true;
break;
if ((char.mc.x+char.width/2 <= fixedObjects[i].leftside) && (newX+char.width/2 >= fixedObjects[i].leftside))
newX = fixedObjects[i].leftside - char.width / 2;
char.hitWallRight = true;
break;
// set position of character
char.mc.x = newX;
char.mc.y = newY;
// set animation state
if (char.inAir)
newAnimState = "jump";
char.animstate = newAnimState;
// move along walk cycle
if (char.animstate == "walk")
char.animstep += timeDiff / 60;
if (char.animstep > char.walkAnimation.length)
char.animstep = 0;
char.mc.gotoAndStop(char.walkAnimation[Math.floor(char.animstep)]);
// not walking, show stand or jump state
else
char.mc.gotoAndStop(char.animstate);
// changed directions
if (newDirection != char.direction)
char.direction = newDirection;
char.mc.scaleX = char.direction;
public function checkCollisions()
for (var i = otherObjects.length-1; i >= 0; i--)
if (hero.mc.hitTestObject(otherObjects[i]))
getObject(i);
for (var j:int = enemies.length-1; j>=0; j--)
if (hero.mc.hitTestObject(enemies[j].mc))
currentX = hero.mc.x;
gameComplete();
public function scrollWithHero()
var stagePosition:Number = gamelevel.x + hero.mc.x;
var rightEdge:Number = stage.stageWidth - edgeDistance;
var leftEdge:Number = edgeDistance;
if (stagePosition > rightEdge)
gamelevel.x -= (stagePosition-rightEdge);
if (gamelevel.x < -(gamelevel.width-stage.stageWidth))
gamelevel.x = -(gamelevel.width-stage.stageWidth);
if (stagePosition < leftEdge)
gamelevel.x += (leftEdge-stagePosition);
if (gamelevel.x > 0)
gamelevel.x = 0;
public function getObject(objectNum:int)
if (otherObjects[objectNum] is Treasure)
gamelevel.removeChild(otherObjects[objectNum]);
otherObjects.splice(objectNum,1);
public function death()
if (hero.mc.y > 300)
currentX = gamelevel.hero.x;
trace(currentX);
gameComplete();
public function gameComplete()
gameMode = "dead";
var dialog:Dialog = new Dialog();
dialog.x = 175;
dialog.y = 100;
addChild(dialog);
dialog.message.text = "Gameover";
public function clickDialogButton(event:MouseEvent)
removeChild(MovieClip(event.currentTarget.parent));
// new life, restart, or go to next level
if (gameMode == "dead")
// reset hero
hero.mc.x = currentX;
hero.mc.y = 0;
trace("dead");
setReplay();
gameMode = "play";
// give stage back the keyboard focus
stage.focus = stage;
public function setReplay()
for (var i:int = fixedObjects.length-1; i>-1; i--)
if (fixedObjects[i].leftside < currentX)
this.gamelevel.removeChildAt(fixedObjects[i]);
fixedObjects.splice(i,1);
trace("Splice?");
for each (var floorObject in fixedObjects){
trace(floorObject.leftside);
public function cleanUp()
removeChild(gamelevel);
this.removeEventListener(Event.ENTER_FRAME,gameLoop);
stage.removeEventListener(KeyboardEvent.KEY_DOWN,keyDownFunction);
stage.removeEventListener(KeyboardEvent.KEY_UP,keyUpFunction);Ok, I fiured it all out, the other way you mentioned. Just opened up the character MC, and named 2 frames. One LEFT and one RIGHT. Then I added a few simple lines of code, and turned out with this:
if (Key.isDown(Key.RIGHT)) {
_x += speed;
this.gotoAndStop("right");
if (Key.isDown(Key.LEFT)) {
_x -= speed;
this.gotoAndStop("left");
Thanks for helping!!! -
How to make a vertical lift or elevator in a platform game
I am creating a side scrolling platform game using the book "Flash Game University" by Gary Rosenzweig.
My protagonist has an instance of "hero".
My current issue is trying to create a lift or elevator to carry the player up or down. The lift is not covered in the book. My thoughts were that the lift constantly moved up and down at a pace determined by a timer. I cannot get my lift to move. I have created a movie clip called "lift" and made it exported for action script. I can make it act similar to a floor movie clip so that I can stand on it, but I cannot get the lift to move on the y axis.
I tried creating a new function called lift() and using a for loop to count between 0 and 100 using a variable "i" and then make my lift move up 1 unit for each loopcycle. It didn't work.
lift.y -= lift.y - 1;
Does anyone have a better solution?
Thanks,
AlexRob,
This worked. Here is my current code ...
var topIndex:Number = 20;
var bottomIndex:Number = 160;
var stepDistance:Number = 10;
var movingUp:Boolean = true;
public function createLift()
box = new Object();
box.mc = gamelevel.box;
public function moveMyLift():void
// lift 01
if (movingUp && box.mc.y > topIndex)
box.mc.y -= stepDistance;
else
movingUp = false;
if (!movingUp && box.mc.y < bottomIndex)
box.mc.y += stepDistance;
else
movingUp = true;
if (hero.mc.hitTestObject(box.mc))
hero.mc.y = box.mc.y;
My lift works correctly. It moves up and down correctly and when I jump on it I stay moving on it. There are only 3 things that don't make sense.
1. When I am on the elevator I cannot jump. If I am not on the elevator I can jump normally.
2. When I touch any portion of the elevator, my character automatically repositions itself to stand on the elevator. It seems normal, but not something that should happen in my scenario. I only want to "climb" on the elevator if I touch the "top" of the elevator.
3. If I add a second elevator, even with its own function, the timing of the elevator math appears to synch instead of work independently. Why? The two elevators synch their movement and timing. Also the first elevator stutters as the synching of the two elevators match thier movement and then moves in unison with the second elevator. Why are they not operating separately?
Here is the code for the first and second elevator:
private var box:Object;
private var box02:Object;
var topIndex:Number = 20;
var bottomIndex:Number = 160;
var stepDistance:Number = 10;
var movingUp:Boolean = true;
var topIndexLift02:Number = 1;
var bottomIndexLift02:Number = 100;
var stepDistanceLift02:Number = 4;
public function createLift()
box = new Object();
box.mc = gamelevel.box;
box02 = new Object();
box02.mc = gamelevel.box02;
public function moveMyLift():void
// lift 01
if (movingUp && box.mc.y > topIndex)
box.mc.y -= stepDistance;
else
movingUp = false;
if (!movingUp && box.mc.y < bottomIndex)
box.mc.y += stepDistance;
else
movingUp = true;
if (hero.mc.hitTestObject(box.mc))
hero.mc.y = box.mc.y;
public function moveMyLift02():void
// lift02
if (movingUp && box02.mc.y > topIndexLift02)
box02.mc.y -= stepDistanceLift02;
else
movingUp = false;
if (!movingUp && box02.mc.y < bottomIndexLift02)
box02.mc.y += stepDistanceLift02;
else
movingUp = true;
if (hero.mc.hitTestObject(box02.mc))
hero.mc.y = box02.mc.y;
public function gameLoop(event:Event)
// get time difference
if (lastTime == 0) lastTime = getTimer();
var timeDiff:int = getTimer() - lastTime;
lastTime += timeDiff;
// only perform tasks if in play mode
if (gameMode == "play")
moveCharacter(hero,timeDiff);
moveEnemies(timeDiff);
checkCollisions();
scrollWithHero();
createLift();
moveMyLift();
moveMyLift02();
Thank you,
Alex
Message was edited by: ajdove -
Choosing Director for gaming project
Hi all
I'm doing my masters degree in multimedia and for a final
group project am
involved in creating a collaborative game. We are just at the
research
stage and I'm looking into technologies to use. We all have
been taught
Director/basic Lingo and Flash/basic Actionscript, so we had
thought that we
might author some movies in Flash but use Director for more
sophisticated
interactivity. However, doing this research is making me
wonder what is the
best option.
I'll try to be brief describing the game. It will involve 4
players around
a table, each having 4 separate tasks to do. Then, when they
have each
completed their task, they will have to collaborate in order
to advance to
the next level of the game. They each have a touch screen to
show them
their movies, and there will be a 5th interface to have the
collaboration
on. So what is involved is a server of some sort to handle
the levels (I
assume!). I thought Director and the Shockwave multiuser
server would be
the perfect options. After researching the Shockwave
multiuser server tho,
it now seems that it's discontinued and there is a new fancy
Flash one that
has video and all sorts of things that I don't think we'll
need.
So the question is, can the older Shockwave multiuser server
provide us with
what we need, or should we consider the Flash technology? The
reason I'm
posting in this newsgroup is that I think it's a general
question not to
warrant specialist advice from the multiuser group. It would
also be great
to get some general feedback on the project, so all opinions
welcome!
Thanks in advance
TrishThanks for the fast reply - that link is very useful. I think
that might be
the way to go. No doubt there will be many more questions on
the way
Trish
"openspark" <[email protected]> wrote in
message
news:e5d0jq$n75$[email protected]..
> You may not even need to use a server. If you have only
5 client
> machines,
> then you can use the Multiuser Xtra in peer-to-peer
mode. The Multiuser
> Xtra
> has not been discontinued.
>
> There is also <a target=_blank
class=ftalternatingbarlinklarge
> href="
http://xtras.tabuleiro.com/products/nebulae/index.tdb">Tabuleiro's
> Nebulae Multiuser Server</a>. The unregistered
demo version provides up
> to ten
> concurrent connections, which is more than adequate for
your needs.
> -
I want to make a platformer game like super mario. But I want
my game to have hills in it.
There is a very famous flash game called Fancy Pants
Adventure 2. It is a platformer with hills in it.
I want to know how to do that. I can make a platformer game
using hitTest(); but that only works with boundary boxes and not
diagonal and curved objects (like hills). I have looked all over
the internet to find out how to do this but I can not find my
answer. If you know how to do this then you are absolutely amazing
in my eyes and could you please explain to me how to do it.
Thank youSo there is no way for flash to see if two objects collide
without boundary boxes with actionscript. Motion guides would take
forever if they are what I think they are. -
I have Adobe Flash Player Plugin for Firefox, but I'm still missing Flash Player?
So I have installed the latest version of Adobe Flash Player Plugin for Firefox, and I'm able to watch youtube videos on my browser and other things that require flash player, but I have a disc that i got along with my Samsung monitor, and when I put it in my computer, it says that I do not infact have flash player. Also, when I try playing a game, DawnGate, theres a black box where a video should be, and it says that i do not have flash player, and it is required to watch these videos. I tried uninstalling, and I was unable to watch youtube, and when i reinstalled, I was able to watch youtube again, but that did not fix my problem. Is there something I'm missing? I look forward to hearing from someone soon.
Odds are it's looking for the IE plugin: (A lot of software just assumes ALL Windows users are "slaves to Microsoft" and only have IE installed.)
Flash Player for ActiveX (Internet Explorer)
or the standalone Player:
Windows Flash Player 12 Projector
Maybe you are looking for
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