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I'm trying to add sound..

[1 Reply]
- 30-Jan-2013 01:19 AM
- Forum: Core Library Questions
hello everybody,

i'm trying to add sound to my game but it's saying:

Null pointer exception

i don't know what's wrong with it. can someone help me?

thanks in advance.

this is my game:

int knopX = 510;

int knopY = 420;

int breedte = 100; //beginscherm

int hoogte = 100;

boolean schakel;

boolean over;

int score =0;

PFont lettertype;

PImage background2;

PImage start;

import ddf.minim.*;

Minim minim;

AudioPlayer player;

buster buster1;

Enemies spook1;

Enemies spook2;

Enemies spook3;

Enemies spook4;

Enemies spook5;

Enemies spook6;

Enemies spook7;

void setup () {

size(900, 800);

buster1 = new buster(30, 540, 4);

spook1 = new Enemies(random(0, width), 0, 3);

spook1 = new Enemies(random(0, width), 0, 2);

spook2 = new Enemies(random(0, width), 0, 5);

spook3 = new Enemies(random(0, width), 0, 2);

spook4 = new Enemies(random(0, width), 0, 6);

spook5 = new Enemies(random(0, width), 0, 4);

spook6 = new Enemies(random(0, width), 0, 6);

spook7 = new Enemies(random(0, width), 0, 4);

background2 = loadImage("background4.png");

start = loadImage("beginscherm.png");

lettertype = loadFont("AbadiMT-CondensedLight-48.vlw");



player = minim.loadFile("GhostBusters.mp3");

minim = new Minim("GhostBusters.mp3");

player.play();

}

void draw() {

image(start, 0, 0);

fill(0, 0, 0, 0);

stroke(0, 0, 0, 0);

rect(knopX, knopY, breedte, hoogte);







if (mouseX > knopX && mouseX < knopX + breedte && mouseY > knopY && mouseY < knopY + hoogte) {

fill(0, 0, 0, 0);

rect(knopX, knopY, breedte, hoogte);

over = true ;

}

else {

over = false;

}

if (schakel == true) {

image(background2, 0, 0);

textFont(lettertype,25);

fill(0,255);

text(score+" ghosts caught",50,50);

buster1.tekenBuster();

buster1.beweegBuster();

spook1.tekenEnemies();

spook1.beweegEnemies();

spook1.checkEnemies();

spook2.tekenEnemies();

spook2.beweegEnemies();

spook2.checkEnemies();

spook3.tekenEnemies();

spook3.beweegEnemies();

spook3.checkEnemies();

spook4.tekenEnemies();

spook4.beweegEnemies();

spook4.checkEnemies();

spook5.tekenEnemies();

spook5.beweegEnemies();

spook5.checkEnemies();

}

}

void mousePressed() {

if (over==true) {

schakel = !schakel;

}

if (over==false) {

}

}

void stop()

{

player.close();

minim.stop();

super.stop();

}

key pressed problem

[5 Replies]
- 11-Jan-2013 06:44 AM
- Forum: Programming Questions
hello,

for school i have to make a game but i'm having difficulties with the keyPressed function.

i'm trying to move an object to the left with te left button on the keyboard.

below shows what i have so far ( i left out the part that draws the monster)

thanks in advance for you help

class Monster {

int x;

int y;

int speed;

Monster(int tempX, int tempY, int tempSpeed) {

x = tempX;

y = tempY;

speed = tempSpeed;

}

void beweegMonster() {

if keyPressed () {

if (key == 'left') {

x = x + speed;

}

}

}

}

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