Processing 1.0 - Processing Discourse - Creating a new movable object everytime I click

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Index › Programming Questions & Help › Programs › Creating a new movable object everytime I click

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Creating a new movable object everytime I click (Read 646 times)

noob

Creating a new movable object everytime I click
Jan 14^th, 2007, 5:38pm

Hi,

I want my program to create a new "card" every time I click on an icon in the left corner.

I made two versions:

http://001.00.funpic.de/processing/

Version 1 is working but only creates one card.

Version 2 does not work. I am getting these errors:

Temporary_6057_5044.java:17:8:17:18: Semantic Error: The type of the right sub-expression, "int", is not assignable to the variable, of type "int[]".
Temporary_4380_5324.java:25:3:25:22: Semantic Error: The type of the right sub-expression, "processing.core.PImage", is not assignable to the variable, of type "processing.core.PImage[]".

This is the source code of version 2:

PFont schrift;
PFont schrift2;
PImage portrait;
PImage [] iportrait;

int rectx;
int recty;
int numberofcards = 0;

int [] cardx = 160;
int [] cardy = 20;

void setup() {
size(800,600);
schrift = loadFont("BitstreamVeraSans-Roman-14.vlw");
schrift2 = loadFont("BitstreamVeraSans-Bold-24.vlw");
portrait = loadImage("portrait.jpg");
iportrait = portrait;
rectx = width-100;
recty = height-100;
}

void draw() {
background(255);
noFill();
rect(20,20,111,151);
image(portrait, 21, 21);
textFont(schrift2, 24);
fill(255);
text("NEW",42,166);
me();
card();
}

void me() {
stroke(0);
fill(180,0,0);
rect(rectx,recty,50,50);
textFont(schrift2, 24);
fill(255);
text("ME",rectx+6,recty+35);
}

void card(){
if (numberofcards != 0) {
/*This is a card*/
stroke(0);
fill(255);

line(cardx[numberofcards], cardy[numberofcards], cardx[numberofcards], cardy[numberofcards]+150);
line(cardx[numberofcards], cardy[numberofcards], cardx[numberofcards]+340, cardy[numberofcards]);
line(cardx[numberofcards]+340, cardy[numberofcards], cardx[numberofcards]+340, cardy[numberofcards]+150);
line(cardx[numberofcards]+340, cardy[numberofcards]+151, cardx[numberofcards], cardy[numberofcards]+151);

image(iportrait[numberofcards], cardx[numberofcards]+1, cardy[numberofcards]+1);
line(cardx[numberofcards]+110, cardy[numberofcards], cardx[numberofcards]+110, cardy[numberofcards]+150);
textFont(schrift, 14);
fill(0);
text("Name:",cardx[numberofcards]+120,cardy[numberofcards]+30);
text("Tags:",cardx[numberofcards]+120,cardy[numberofcards]+55);
text("Notes:",cardx[numberofcards]+120,cardy[numberofcards]+80);
}
}

void mousePressed() {
/* Create a new card */
if (mousePressed == (mouseX > 20) && (mouseX < 131) && (mouseY > 20) && (mouseY < 171)) {
numberofcards++;
card();
}
}

void mouseDragged() {

/* Moving me */
if (mousePressed == (mouseX > rectx) && (mouseY > recty) && (mouseX < rectx+50) && (mouseY < recty+50))
{
rectx = mouseX-25;
recty = mouseY-25;
}

/* Moving card */
if (mousePressed == (mouseX > cardx[numberofcards]) && (mouseY > cardy[numberofcards]) && (mouseX < cardx[numberofcards]+331) && (mouseY < cardy[numberofcards]+151))
{
cardx[numberofcards] = mouseX-25;
cardy[numberofcards] = mouseY-25;
}
}

Why does the program not work? What do I have to change to get it working?

fjen

Re: Creating a new movable object everytime I clic
Reply #1 - Jan 14^th, 2007, 7:50pm

hi there,

the error says you are trying to assign an object to another object of type array. basically these are handled as different types, so: int is not int[] !

Code:


// _1_
// you set iportrait to be an array of PImages
PImage [] iportrait;

// that's why you can't assign a single object to it
iportrait = portrait;

// instead do:
iportrait = new PImage[]{ portrait };

// this will put portrait at position 0 of iportrait:
image( iportrait[0], 10, 10);

// _2_
// same problem with:
int [] cardx = 160;

// should be:
int [] cardx = new int[]{ 160 }; // put 160 at cardx[0]

// or
int [] cardx = new int[160]; // empty, length 160

have a look here on how to work with arrays:
http://processing.org/learning/examples/array.html

F

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