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NuLL Pointer Exception

[6 Replies]
- 18-Dec-2012 09:34 AM
- Forum: Programming Questions
Hi guyz , I am new to processing and am trying to modify these code by storing the back ground image of each level in an array but it keeps giving me a Null pointer Exception please can anyone help me out in fixing these error.

int score=0;

int level=0;

int scoreMax=3;

int levelMax=5;

// used to store background colours - could store images in this way too

PImage[] backgrounds;

void setup() {

size(600, 440);

backgrounds = new PImage[6];

backgrounds[0]=loadImage("backround/level1bg.png");

backgrounds[1]=loadImage("background/guinea-fowls.png ");

backgrounds[2]=loadImage("background/level3bg.png");

backgrounds[3]=loadImage("backround/level1bg.png ");

backgrounds[4]=loadImage("background/guinea-fowls.png");

backgrounds[5]=loadImage("background/level3bg.png");

int txtSize=32;

PFont font = createFont("Arial", txtSize);

textFont(font,txtSize);

}

void draw() {

// background determined by current level

background(backgrounds[level]);

text("Score: "+ score, width/2, 50);

text("Level: "+ level, width/4,50);

if (level==levelMax && score ==scoreMax){

text("Game Over", 50, 150);

}

}

void keyPressed(){

// defines interactive behaviour of the game

// '+' key increases score up to scoreMax. When scoreMax reached, level increased.

if (key=='+'){

if(score < scoreMax){ score++;}

else if (level < levelMax){ score=0 ; level++; }

}

}

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