I'm working on a match-3 style puzzle game using Flixel, and so I'm working on checking each row and column to see if there is a match at any given time. However, I have 6 different pieces (as of right now) that are active, and each piece is identified by an integer. Given that, I can check, for each and every single piece, by doing something like this:
public function matchingCheck():void
{
if (piecesArray[0][1] == 1 && piecesArray[1][1] == 1 && piecesArray[2][1] == 1) {
FlxG.log("Yay!");
}
}
However, this is rather unwieldy and would basically cause way too much repetition for my liking.
At the very least, I would like to be able to check if the values in these arrays are equal to one another, without having to specify which value it is. At the very best, I'd love to be able to check an entire row for three (or more) adjacent pieces, but I will settle for doing that part manually.
Thanks for your help!
EDIT: Nevermind, my edit didn't work. It was just checking if piecesArray[2][1] == 1, which makes me a sad panda.
EDIT 2: I've selected the correct answer below - it's not exactly what I used, but it definitely got me started. Thanks Apocalyptic0n3!
You could cut down on that code a little bit by using another function
private function checkValid( arrayOfItemsToCheck:Array, value:* ):Boolean {
for ( var i:Number = 0; i < arrayOfItemsToCheck.length; i++ ) {
if ( arrayOfItemsToCheck[i] != value ) {
return false;
}
}
return true;
}
Then you just do this in your if statement:
if ( checkValid( [ piecesArray[0][1], piecesArray[1][1], piecesArray[2][1] ], 1 ) ) {
FlxG.log("Yay!");
}
That does assume all items need to be equal to 1, though. It's still a lot of code, but it cuts out one set of "= 1 &&" for each check.
How about something like this which would tell you both if a match existed and what match it was:
public function checkForMatch():void{
var rows:int = piecesArray.length;
for(var i:int=0; i<rows; i++){
var match:int = checkRow(piecesArray[i]);
if(match > -1) {
FlxG.log("Yay you matched " + match);
}
}
}
private function ckeckRow(row:Array):int{
if(row[0] == row[1] == row[2]){
return row[0];
}
return -1;
}
Related
My code works, except it is requiring and extra "Space" at the end to be placed in order for the button to activate? Any ideas? I obviously don't have the space at the end of the user names or passwords in the code. This happens on another frame as well where I have the user type in a web address, I have the conditional set as == "md.website.com" but it is requiring "md.website.com " (extra space at the end) in order for the button to activate.
This code is expecting "AB1234 " and "newuser " instead of "AB1234" "newuser" like I need and I am telling it... I'm sorry, I'm new to AS3 and learning ALL I can, this site rocks for all the help I've already gotten!
username_txt.addEventListener(TextEvent.TEXT_INPUT,paramChanged3);
password_txt.addEventListener(TextEvent.TEXT_INPUT,paramChanged3);
next_btn.enabled = false;
next_btn.alpha = .5;
function paramChanged3(event:TextEvent):void
{
if (username_txt.text == "AB1234" && password_txt.text == "newuser" )
{
trace("go")
next_btn2.enabled = true;
next_btn2.alpha = 1;
next_btn2.addEventListener(MouseEvent.CLICK, fl_ClickToGoToAndPlay_20)
}
else
{
next_btn2.enabled = false;
next_btn2.alpha = .5;
}
}
function fl_ClickToGoToAndPlay_20(event:MouseEvent):void
{
gotoAndPlay(20);
}
The problem is that the TextEvent.TEXT_INPUT fires before the text field is actually updated. Try using Event.CHANGE instead (or using two TextEvent.TEXT_INPUT callbacks and appending the input character with event.text within each).
I don't know why AS3 is requiring the extra space, but I removed the exact conditional, and just did a minimum character count. Of course the trainee can then type in anything as long as it matches the minimum requirement, but again, the actual usernames and passwords don't matter, its all simulation anyways, here is the code with the character count....
username_txt.addEventListener(TextEvent.TEXT_INPUT,paramChanged3);
password_txt.addEventListener(TextEvent.TEXT_INPUT,paramChanged3);
next_btn.enabled = false;
next_btn.alpha = .5;
function paramChanged3(event:TextEvent):void
{
if (username_txt.text != "" && username_txt.length >=5 &&
password_txt.text != "" && password_txt.length >=6)
{
trace("go")
next_btn2.enabled = true;
next_btn2.alpha = 1;
next_btn2.addEventListener(MouseEvent.CLICK, fl_ClickToGoToAndPlay_20)
}
else
{
next_btn2.enabled = false;
next_btn2.alpha = .5;
}
}
function fl_ClickToGoToAndPlay_20(event:MouseEvent):void
{
gotoAndPlay(20);
}
When adding a derived column to a data flow with ezAPI, I get the following warnings
"Add stuff here.Inputs[Derived Column Input].Columns[ad_zip]" on "Add
stuff here" has usage type READONLY, but is not referenced by an
expression. Remove the column from the list of available input
columns, or reference it in an expression.
I've tried to delete the input columns, but either the method is not working or I'm doing it wrong:
foreach (Microsoft.SqlServer.Dts.Pipeline.Wrapper.IDTSInputColumn100 col in derFull.Meta.InputCollection[0].InputColumnCollection)
{
Console.WriteLine(col.Name);
derFull.DeleteInputColumn(col.Name);
}
I have the following piece of code that fixes the problem.
I got it from a guy called Daniel Otykier. So he is propably the one that should be credited for it... Unlesss he got it from someone else :-)
static public void RemoveUnusedInputColumns(this EzDerivedColumn component)
{
var usedLineageIds = new HashSet<int>();
// Parse all expressions used in new output columns, to determine which input lineage ID's are being used:
foreach (IDTSOutputColumn100 column in component.GetOutputColumns())
{
AddLineageIdsFromExpression(column.CustomPropertyCollection, usedLineageIds);
}
// Parse all expressions in replaced input columns, to determine which input lineage ID's are being used:
foreach (IDTSInputColumn100 column in component.GetInputColumns())
{
AddLineageIdsFromExpression(column.CustomPropertyCollection, usedLineageIds);
}
var inputColumns = component.GetInputColumns();
// Remove all input columns not used in any expressions:
for (var i = inputColumns.Count - 1; i >= 0; i--)
{
if (!usedLineageIds.Contains(inputColumns[i].LineageID))
{
inputColumns.RemoveObjectByIndex(i);
}
}
}
static private void AddLineageIdsFromExpression(IDTSCustomPropertyCollection100 columnProperties, ICollection<int> lineageIds)
{
int lineageId = 1;
var expressionProperty = columnProperties.Cast<IDTSCustomProperty100>().FirstOrDefault(p => p.Name == "Expression");
if (expressionProperty != null)
{
// Input columns used in expressions are always referenced as "#xxx" where xxx is the integer lineage ID.
var expression = expressionProperty.Value.ToString();
var expressionTokens = expression.Split(new[] { ' ', ',', '(', ')' });
foreach (var c in expressionTokens.Where(t => t.Length > 1 && t.StartsWith("#") && int.TryParse(t.Substring(1), out lineageId)))
{
if (!lineageIds.Contains(lineageId)) lineageIds.Add(lineageId);
}
}
}
Simple but not 100% Guaranteed Method
Call ReinitializeMetaData on the base component that EzApi is extending:
dc.Comp.ReinitializeMetaData();
This doesn't always respect some of the customizations and logic checks that EzAPI has, so test it carefully. For most vanilla components, though, this should work fine.
100% Guaranteed Method But Requires A Strategy For Identifying Columns To Ignore
You can set the UsageType property of those VirtualInputColumns to the enumerated value DTSUsageType.UT_IGNORED using EzApi's SetUsageType wrapper method.
But! You have to do this after you're done modifying any of the other metadata of your component (attaching other components, adding new input or output columns, etc.) since each of these triggers the ReinitializeMetaData method on the component, which automatically sets (or resets) all UT_IGNORED VirtualInputColumn's UsageType to UT_READONLY.
So some sample code:
// define EzSourceComponent with SourceColumnToIgnore output column, SomeConnection for destination
EzDerivedColumn dc = new EzDerivedColumn(this);
dc.AttachTo(EzSourceComponent);
dc.Name = "Errors, Go Away";
dc.InsertOutputColumn("NewDerivedColumn");
dc.Expression["NewDerivedColumn"] = "I was inserted!";
// Right here, UsageType is UT_READONLY
Console.WriteLine(dc.VirtualInputCol("SourceColumnToIgnore").UsageType.ToString());
EzOleDbDestination d = new EzOleDbDestination(f);
d.Name = "Destination";
d.Connection = SomeConnection;
d.Table = "dbo.DestinationTable";
d.AccessMode = AccessMode.AM_OPENROWSET_FASTLOAD;
d.AttachTo(dc);
// Now we can set usage type on columns to remove them from the available inputs.
// Note the false boolean at the end.
// That's required to not trigger ReinitializeMetadata for usage type changes.
dc.SetUsageType(0, "SourceColumnToIgnore", DTSUsageType.UT_IGNORED, false);
// Now UsageType is UT_IGNORED and if you saved the package and viewed it,
// you'll see this column has been removed from the available input columns
// ... and the warning for it has gone away!
Console.WriteLine(dc.VirtualInputCol("SourceColumnToIgnore").UsageType.ToString());
I was having exactly your problem and found a way to solve it. The problem is that the EzDerivedColumn has not the PassThrough defined in it's class.
You just need to add this to the class:
private PassThroughIndexer m_passThrough;
public PassThroughIndexer PassThrough
{
get
{
if (m_passThrough == null)
m_passThrough = new PassThroughIndexer(this);
return m_passThrough;
}
}
And alter the ReinitializeMetadataNoCast() to this:
public override void ReinitializeMetaDataNoCast()
{
try
{
if (Meta.InputCollection[0].InputColumnCollection.Count == 0)
{
base.ReinitializeMetaDataNoCast();
LinkAllInputsToOutputs();
return;
}
Dictionary<string, bool> cols = new Dictionary<string, bool>();
foreach (IDTSInputColumn100 c in Meta.InputCollection[0].InputColumnCollection)
cols.Add(c.Name, PassThrough[c.Name]);
base.ReinitializeMetaDataNoCast();
foreach (IDTSInputColumn100 c in Meta.InputCollection[0].InputColumnCollection)
{
if (cols.ContainsKey(c.Name))
SetUsageType(0, c.Name, cols[c.Name] ? DTSUsageType.UT_READONLY : DTSUsageType.UT_IGNORED, false);
else
SetUsageType(0, c.Name, DTSUsageType.UT_IGNORED, false);
}
}
catch { }
}
That is the strategy used by other components. If you want to see all the code you can check my EzApi2016#GitHub. I'm updating the original code from Microsoft to SQL Server 2016.
in the following code script for google Spreadsheets, I tried to make a program in which two pieces of information would be inputted to return a desired value that depends on BOTH values. Say, getValcharge ("OptionA", 2000) would return "76", or getValcharge ("OptionB",6000) would return 70. However, it seems to me that I keep getting returned the very last value possible: getValcharge("OptionA"/"OptionB"/"OptionC",1000) would return me "30". Even if I were to put an "OptionD" for the value, it would return "30" if the second number is under 5001.
Thus, it seems to only follow the second parameter --and thus only the second--even when closed off and is supposed to be not accessible to the first.
I am new to Script editor but do have modest Java experience (it'd work were this Java..) Could someone offer any advice/fixes? Any is appreciated. Thanks.
function getValcharge (valType, valAmount) {
var valcost =0;
if(valType="OptionA"){
if(valAmount < 5001)
{valcost = 76;}
if(valAmount > 5000 && valAmount <10001)
{valcost = 113;}
}
if(valType="OptionB"){
if(valAmount < 5001)
{valcost=43; }
if(valAmount > 5000 && valAmount <10001)
{valcost = 70;}
}
if(valType="OptionC")
{
if(valAmount < 5001)
{ valcost = 30; }
if(valAmount > 5000 && valAmount <10001)
{ valcost = 46; }
}
return valcost;
}
In Javascript you need to use a double-equals sign to test for equivalence, eg:
if(valType=="OptionA"){
I'm looking at the as3delaunay library and most of the code is clear to me. This part is not, however (note the line that I put preceded with an arrow):
public function circles():Vector.<Circle>
{
var circles:Vector.<Circle> = new Vector.<Circle>();
for each (var site:Site in _sites)
{
var radius:Number = 0;
var nearestEdge:Edge = site.nearestEdge();
=======>> !nearestEdge.isPartOfConvexHull() && (radius = nearestEdge.sitesDistance() * 0.5);
circles.push(new Circle(site.x, site.y, radius));
}
return circles;
}
For reference, isPartOfConvexHull() is found in Edge.as and looks like this:
internal function isPartOfConvexHull():Boolean
{
return (_leftVertex == null || _rightVertex == null);
}
What does !nearestEdge.isPartOfConvexHull() do? Does that mean that the radius = nearestEdge.sitesDistance() * 0.5 only executes if false is returned from the call to isPartOfConvexHull()? Does that stop execution of any other code?
It is equivalent to:
if (!nearestEdge.isPartOfConvexHull()) {
radius = nearestEdge.sitesDistance() * 0.5;
}
In the following line:
var b:Boolean = expression1 && expression2;
expression2 will not be evaluated if expression1 is false because we already know the final result: b = false.
Now in the following line:
expression1 && expression2;
The same thing happens except the fact that we are not assigning the result to a variable.
And this is exactly what happens in the line you are asking about where !nearestEdge.isPartOfConvexHull() is the first expression and (radius = nearestEdge.sitesDistance() * 0.5) is the second expression.
To extends #sch answer with some explanations (I didn't knew if editing answer to almost double it was ok).
This is based on lazy execution of the interpreter. If (!nearestEdge.isPartOfConvexHull()) is False then there's no need to execute the second part of the AND statement to know it'll be False, then it's left unexecuted. If it's true the evaluation of the complete statement is needed (and then done) to tell wether or not this boolean is True. So this is equivalent to an if statement.
TMHO this is bad code since it's to much condensed and hard to understand.
So I have a list of words (the entire English dictionary).
For a word matching game, when a player moves a piece I need to check the entire dictionary to see if the the word that the player made exists in the dictionary. I need to do this as quickly as possible. simply iterating through the dictionary is way too slow.
What is the quickest algorithm in AS3 to search a long list like this for a match, and what datatype should I use? (ie array, object, Dictionary etc)
I would first go with an Object, which is a hash table (at least, storage-wise).
So, for every word in your list, make an entry in your dictionary Object and store true as its value.
Then, you just have to check if a given word is a key into your dictionary to know whether the word the user has choosen is valid or not.
This works really fast in this simple test (with 10,000,000 entries):
var dict:Object = {};
for(var i:int = 0; i < 10000000; i++) {
dict[i] = true;
}
var btn:Sprite = new Sprite();
btn.graphics.beginFill(0xff0000);
btn.graphics.drawRect(0,0,50,50);
btn.graphics.endFill();
addChild(btn);
btn.addEventListener(MouseEvent.CLICK,checkWord);
var findIt:Boolean = true;
function checkWord(e:MouseEvent):void {
var word:String;
if(findIt) {
word = "3752132";
} else {
word = "9123012456";
}
if(dict[word]) {
trace(word + " found");
} else {
trace(word + " not found");
}
findIt = !findIt;
}
It takes a little longer to build the dictionary, but lookup is almost instantaneous.
The only caveat is that you will have to consider certain keys that will pass the check and not necessarily be part of your words list. Words such as toString, prototype, etc. There are just a few of them, but keep that in mind.
I would try something like this with your real data set. If it works fine, then you have a really easy solution. Go have a beer (or whatever you prefer).
Now, if the above doesn't really work after testing it with real data (notice I've build the list with numbers cast as strings for simplicity), then a couple of options, off the top of my head:
1) Partition the first dict into a set of dictionaries. So, instead of having all the words in dict, have a dictionary for words that begin with 'a', another for 'b', etc. Then, before looking up a word, check the first char to know where to look it up.
Something like:
var word:String = "hello";
var dictKey:String = word.charAt(0);
// actual check
if(dict[dictKey][word]) {
trace("found");
} else {
trace("not found");
}
You can eventually repartition if necessary. I.e, make dict['a'] point to another set of dictionaries indexed by the first two characters. So, you'll have dict['a']['b'][wordToSearch]. There are a number of possible variations on this idea (you'd also have to come up with some strategy to cope with words of two letters, such as "be", for instance).
2) Try a binary search. The problem with it is that you'll first have to sort the list, upfront. You have to do it just once, as it doesn't make sense to remove words from your dict. But with millions of words, it might be rarther intensive.
3) Try some fancy data structures from open source libraries such as:
http://sibirjak.com/blog/index.php/collections/as3commons-collections/
http://lab.polygonal.de/ds/
But again, as I said above, I'd first try the easiest and simpler solution and check if it works against the real data set.
Added
A simple way to deal with keywords used for Object's built-in properties:
var dict:Object = {};
var keywordsInDict:Array = [];
function buildDictionary():void {
// let's assume this is your original list, retrieved
// from XML or other external means
// it contains "constructor", which should be dealt with
// separately, as it's a built-in prop of Object
var sourceList:Array = ["hello","world","foo","bar","constructor"];
var len:int = sourceList.length;
var word:String;
// just a dummy vanilla object, to test if a word in the list
// is already in use internally by Object
var dummy:Object = {};
for(var i:int = 0; i < len; i++) {
// also, lower-casing is a good idea
// do that when you check words as well
word = sourceList[i].toLowerCase();
if(!dummy[word]) {
dict[i] = true;
} else {
// it's a keyword, so store it separately
keywordsInDict.push(word);
}
}
}
Now, just add an extra check for built-in props in the checkWords function:
function checkWord(e:MouseEvent):void {
var word:String;
if(findIt) {
word = "Constructor";
} else {
word = "asdfds";
}
word = word.toLowerCase();
var dummy:Object = {};
// check first if the word is a built-in prop
if(dummy[word]) {
// if it is, check if that word was in the original list
// if it was present, we've stored it in keywordsInDict
if(keywordsInDict.indexOf(word) != -1) {
trace(word + " found");
} else {
trace(word + " not found");
}
// not a built-in prop, so just check if it's present in dict
} else {
if(dict[word]) {
trace(word + " found");
} else {
trace(word + " not found");
}
}
findIt = !findIt;
}
This isn't specific to ActionScript, but a Trie is a suitable data structure for storing words.