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Topic: Placing an Array (Read 610 times) |
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inadaze
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Placing an Array
« on: Oct 31st, 2004, 4:29pm » |
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Hi,
I have a class of circles that are drawn each time the user clicks the screen. I would like it so that when the user has nine circles drawn, lines are drawn automatically connecting the circles.
I know you have to place the x and y of each drawn circle in an array so that the lines can be drawn, but where would I place the array? Do I place it in the circle class or in a line class or in my mainGame class? Or do I just place it outside of the class definitions?
Thanks
Jay
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fjen
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Re: Placing an Array
« Reply #1 on: Oct 31st, 2004, 7:10pm » |
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class of circles? or circle class? if your class has all the circles in it already, then there is no need for you to store anything else ... if it's a circle class (that represents one circle) then why don't you just make an array out of that? like:
Circle[] circles = new Circle[5];
int cindex = -1;
// mouseReleased:
cindex++;
if (cindex < circles.length) circle[cindex] = new Circle(x,y); // and so on ..
so, there's no need to extra store the coordinates, just make sure circles can be accessed from where it's called (probably loop() -> outside the class definitions).
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| « Last Edit: Oct 31st, 2004, 7:11pm by fjen » |
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inadaze
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Re: Placing an Array
« Reply #2 on: Oct 31st, 2004, 11:37pm » |
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I have a class that is calleds circles that I use as a blueprint to create circles with specific colors and size when the user clicks. What I would like to store is where the user clicks and creates these circles.
Jay
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fjen
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Re: Placing an Array
« Reply #3 on: Nov 1st, 2004, 2:44am » |
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well, then just store the user-click as coordinates (mouseX, mouseY) in the circle-class when constructing it ( new myCircleClass(mouseX,mouseY,myColor) and have these arranged into an array. just as i posted before. if you post some code i can be more specific ..
/F
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inadaze
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Re: Placing an Array
« Reply #4 on: Nov 2nd, 2004, 1:27am » |
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I tried to do it on my own but it doesn't work. Here is my code:
/*Jason Smalridge
DFAR 451 - Tangible Media
Oct. 30 2004
-----------------------------------------------------------------------
The Palm Reader 0.1*/
//Instantiate a new object of type gameLauncher().
GameLauncher currentGame = new GameLauncher();
//=====================================================================
//Class definitions
//Game Container
class GameLauncher {
//Properties
//Constructor
GameLauncher(){
}
//Methods
}
//----------------------------------------------------
//Picture Container
class Picture {
//properties
int Xpos;
int Ypos;
int PicLength;
int PicWidth;
String FileName;
boolean blackAndWhite;
//Constructor
Picture(int Xpos,int Ypos,int PicLength,int PicWidth,String FileName){
this.Xpos = Xpos;
this.Ypos = Ypos;
this.PicLength = PicLength;
this.PicWidth = PicWidth;
this.FileName = FileName;
}
//Methods
void draw() {
BImage Palm;
Palm = loadImage(this.FileName);
image(Palm,this.Xpos,this.Ypos,this.PicLength,this.PicWidth);
}
}
//-------------------------------------------------------
//Moveable points
class LinePoint {
//properties
int Xpos;
int Ypos;
int size;
int lineType;
int posInLine;
color pointColor;
int counter = 0;
color redPoint = color(200,0,0);
color greenPoint = color(0,200,0);
color bluePoint = color(0,0,200);
//Constructor
LinePoint(int Xpos,int Ypos,int size,int counter) {
this.Xpos = Xpos;
this.Ypos = Ypos;
this.size = size;
this.lineType = lineType;
this.posInLine = posInLine;
this.pointColor = pointColor;
this.counter = counter;
this.changeColor(this.counter);
}
//methods
void draw() {
strokeWeight(1);
fill(this.pointColor);
ellipse(this.Xpos,this.Ypos,this.size,this.size);
}
//method to change the point color after a certain amount are drawn
void changeColor(int counter) {
if(counter == 1) {
this.pointColor = this.redPoint;
}else if(counter == 2) {
this.pointColor = this.greenPoint;
}else if(counter == 3) {
this.pointColor = this.bluePoint;
}
}
}
/
========================================================================
//Setup + Variables + Functions + Arrays
void setup() {
background(0);
size(500,500);
ellipseMode(CENTER_DIAMETER);
rectMode(CENTER_DIAMETER);
imageMode(CENTER_DIAMETER);
Picture myPalmPicture = new Picture(250,250,500,500,"myPalm.jpg");
myPalmPicture.draw();
}
//Variables
//variable to count how many points have been drawn
int clickCounter = 0;
//variable to control the color of the circle(1 = red, 2 = green, 3 = blue);
int clickCounterChanger = 0;
//Functions
void pointColorControls(){
clickCounter = clickCounter + 1;
if(clickCounter <= 3) {
clickCounterChanger = 1;
}else if(clickCounter >= 4 && clickCounter <= 6) {
clickCounterChanger = 2;
}else if(clickCounter >= 7 && clickCounter <= 9) {
clickCounterChanger = 3;
}
}
//Arrays
//********************************************************************
//Controls
void mousePressed(){
//Make sure the user cannot have more than 9 points
if(clickCounter < 9){
pointColorControls();
LinePoint myPoint = new LinePoint(mouseX,mouseY,10,clickCounterChanger);
myPoint.draw();
}
//if the user is finished, draw the connecting lines
}
void loop() {
}
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fjen
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Re: Placing an Array
« Reply #5 on: Nov 2nd, 2004, 5:37am » |
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just a hint, don't do this:
//Methods
void draw() {
BImage Palm;
Palm = loadImage(this.FileName);
image(Palm,this.Xpos,this.Ypos,this.PicLength,this.PicWidth);
}
make BImage Palm a property,
load it in the constructor,
just do drwing in draw ...
file-access is not fast, this might slow down you app or cause other problems if called in loop over and over again.
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| « Last Edit: Nov 2nd, 2004, 5:38am by fjen » |
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fjen
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Re: Placing an Array
« Reply #6 on: Nov 2nd, 2004, 5:45am » |
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this is just nice! check this line:
Code:
/
========================================================================
//Setup + Variables + Functions + Arrays
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it should give an error since the comment is missing it's second slash, but it doesn't.  ?
make the line start with // then it works.
/F
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inadaze
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Re: Placing an Array
« Reply #8 on: Nov 2nd, 2004, 4:07pm » |
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Any ideas about how to set up an array to hold my point positions? As you can see I am not the greatest programmer in the world.=(
Thanks
Jay
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fjen
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Re: Placing an Array
« Reply #9 on: Nov 3rd, 2004, 12:11am » |
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well, as i posted earlier, just keep your LinePoints in an array.
// some examples of how it might look:
LinePoint[] lines = new LinePoint[9]; // create empty array of size 9 (0-8 that is)
...
lines[clickCounter] = new LinePoint( ...); //put one LinePoint into the array, at position clickCounter
...
int x_line_3 = lines[3].Xpos; // read the XPos of LinePoint 4
...
i dont't have the time to fix/rewrite your code, you might wanna look up array-usage somewhere. here for example.
/F
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| « Last Edit: Nov 3rd, 2004, 12:13am by fjen » |
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inadaze
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Re: Placing an Array
« Reply #10 on: Nov 3rd, 2004, 1:07am » |
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Well, regardless of your limited time, I appreciate the time you have given to my problem. Hope I can figure things out.
Thanks
Jay
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