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var ship = new WebImage("https://vignette.wikia.nocookie.net/chickeninvaders/images/5/51/BomberFront.png/revision/latest?cb=20191006132306");
var shipwidth =40;
var shipheight =30;
var shipofset =30;
var row =4;
var column = 6;
var chickenwidth = 40;
var chickenheight= 30;
var offset = (getWidth()-chickenwidth * 6)/ 7;
var y = 10;
var x = offset;
var buletwidth=8;
var buletheight= 16;
var bullet;
var bullet_dx = 0;
var bullet_dy = -3;
var score =new Text ("score 0", "15pt Arial");
var scores= 0;
var bullnum = 30;
var bullnumber = new Text (bullnum , "15pt Arial");
var dxckn=4;
var dyckn=0;
var chickens = [];
var eggs= [];
var bullets = [];
var winningscore=120;
var background = new WebImage("https://vignette.wikia.nocookie.net/chickeninvaders/images/5/50/Wiki-background/revision/latest?cb=20191201203017");
var egg ;
var eggw = 10;
var eggh= 12;
var egg_dx =0;
var egg_dy =3;
var count = 0;
var chickens_move_call_number = 0;
function start() {
background = new WebImage("https://vignette.wikia.nocookie.net/chickeninvaders/images/5/50/Wiki-background/revision/latest?cb=20191201203017");
background.setSize(getWidth(), getHeight());
background.setPosition (0 ,0 );
add (background);
var prolog = readLine ("This is chicken invaners game, avoid eggs and kill all chicken. You have only 30 bullet. Good Luck");
scorecount();
bulletscount();
draw();
drawship();
mouseMoveMethod(shipmove);
mouseClickMethod(drawbullet);
setTimer(chickenmove,20);
setTimer(drawegg, 300);
setTimer(eggmove, 50);
}
//this function draws eggs
function drawegg (){
egg = new WebImage (" https://vignette.wikia.nocookie.net/chickeninvaders/images/2/26/Egg.png/revision/latest?cb=20180728171055");
egg.setSize(eggw, eggh);
var random_chicken_number = Randomizer.nextInt(0, chickens.length-1);
if (chickens[random_chicken_number] != undefined) {
var eggx= chickens[random_chicken_number].getX() + chickenwidth/2;
var eggy= chickens[random_chicken_number].getY() + chickenheight;
egg.setPosition (eggx, eggy);
add (egg);
eggs.push(egg);
}
}
//this function moves mutiple eggs
function eggmove(e){
for(var i = 0; i < eggs.length; i++){
eggs[i].move(egg_dx, egg_dy);
}
checkegg();
}
//this function is for egg and ship colission an game over
function checkegg(e) {
for(var i = 0; i < eggs.length; i++){
var elem = getElementAt(eggs[i].getX(), eggs[i].getY()+eggh+1);
if (elem == ship) {
stopTimer(drawegg);
stopTimer(eggmove);
removeAll();
add (background);
var gameover = new Text ("GAME OVER", "12pt Arial");
gameover.setColor(Color.white);
gameover.setPosition (getWidth()/2 -40, getHeight()/2);
add(gameover);
}
}
}
//this function moves multiply bullets
function bulletmove(e){
for (var i=0; i<bullets.length; i++) {
if (bullets[i] != undefined) {
bullets[i].move(bullet_dx, bullet_dy);
}
}
checkchicken();
}
//this function draws bullets
function drawbullet(){
if (bullnum > 0) {
bullet = new WebImage("https://vignette.wikia.nocookie.net/chickeninvaders/images/e/e0/UtensilPokerCarving.png/revision/latest?cb=20180808210855");
bullet.setSize(buletwidth, buletheight);
bullet.setPosition(ship.getX() + shipwidth/2-buletwidth/2, getHeight()-shipofset -shipheight-buletheight);
add(bullet);
bullets.push(bullet);
setTimer(bulletmove,20);
bullnum--;
bullnumber.setText("bullet: " + bullnum);
} else {
gameover();
}
}
//this function moves chickens
function chickenmove(e){
chickens_move_call_number++;
if (chickens_move_call_number % 11 == 0) {
dxckn = -dxckn;
}
for(var i = 0; i < chickens.length; i++){
if (chickens[i] != undefined) {
chickens[i].move(dxckn,dyckn);
}
}
}
// this function returns if chicken and bullet have colission
function checkIfChickenIsDead(chicken_to_check, bullet_to_check) {
if (chicken_to_check == undefined || bullet_to_check == undefined) {
return false;
}
var top = getElementAt(bullet_to_check.getX(), bullet_to_check.getY() - bullet_to_check.getHeight());
if (top == chicken_to_check) {
return true;
}
return false;
}
//this function removes chickens and bullets when hit
function checkchicken(e) {
for (var i=0; i<chickens.length; i++) {
for (var k=0; k<bullets.length; k++) {
if (checkIfChickenIsDead(chickens[i], bullets[k]) == true) {
scores = scores +5;
remove(chickens[i]);
remove(bullets[k]);
delete chickens[i];
delete bullets[k];
winner();
}
}
}
}
//this function draws score count bar
function scorecount (e){
score = new Text ("score 0", "12pt Arial");
score.setColor(Color.white);
score.setPosition (getWidth()-100, getHeight()-10);
add (score);
}
//this function draws bullet count bar
function bulletscount (e){
bullnumber = new Text ("bullet: 30 ", "12pt Arial");
bullnumber.setColor(Color.white);
bullnumber.setPosition (20, getHeight()-10);
add (bullnumber);
}
//this function is for ship movement
function shipmove(e){
ship.setPosition(e.getX()-shipwidth/2, getHeight()-shipofset -shipheight);
if(e.getX()-shipwidth/2<0 ){
ship.setPosition(0,getHeight()-shipofset-shipheight);
}
if(e.getX() +shipwidth/2>getWidth() ){
ship.setPosition(getWidth() - shipwidth,getHeight()-shipofset-shipheight);
}
}
//this function draws ship
function drawship(){
ship = new WebImage("https://vignette.wikia.nocookie.net/chickeninvaders/images/5/51/BomberFront.png/revision/latest?cb=20191006132306");
ship.setSize(shipwidth, shipheight);
ship.setPosition(getWidth()/2 -shipwidth/2, getHeight() - shipofset-shipheight);
add (ship);
}
// this function draws chickens
function drawChicken(type, position_x, position_y) {
var chicken_image_url = '';
if (type == 'boss') {
chicken_image_url = 'https://vignette.wikia.nocookie.net/chickeninvaders/images/8/8d/SweaterChickenCIU.png/revision/latest?cb=20190120215403';
} else if (type == 'blue') {
chicken_image_url = 'https://vignette.wikia.nocookie.net/chickeninvaders/images/b/b4/BigChicken.png/revision/latest?cb=20180311182645';
} else if (type == 'red') {
chicken_image_url = 'https://vignette.wikia.nocookie.net/chickeninvaders/images/0/00/BigChickenCIU.png/revision/latest?cb=20190225195618';
}
var chicken = new WebImage(chicken_image_url);
chicken.setSize(chickenwidth, chickenheight);
chicken.setPosition (position_x , position_y);
add (chicken);
chickens.push(chicken);
}
//this functions draws chickens
function draw(){
var chicken_x = offset;
var chicken_y = offset;
var chicken_count = 1;
var chicken_type = 'boss';
for (var i=0; i<row; i++) {
chicken_y = (chickenheight + offset)*i + offset;
for (var k=0; k<column; k++) {
chicken_x = (chickenwidth + offset)*k + offset;
drawChicken(chicken_type, chicken_x, chicken_y);
chicken_count++;
if (chicken_count <= 6) {
chicken_type = 'boss';
} else if (chicken_count > 6 && chicken_count <= 12) {
chicken_type = 'red';
} else {
chicken_type = 'blue';
}
}
}
}
//this functions draws winner text
function winner (){
score.setText ("score " + scores);
if (scores ==winningscore){
stopTimer(drawegg);
stopTimer(eggmove);
removeAll();
add (background);
var winner = new Text ("YOU WIN", "12pt Arial");
winner.setColor(Color.white);
winner.setPosition (getWidth()/2 -40, getHeight()/2);
add(winner);
}
}
//this functions draws gameover text
function gameover (){
stopTimer(drawegg);
stopTimer(eggmove);
removeAll();
add (background);
var gameover = new Text ("GAME OVER", "12pt Arial");
gameover.setColor(Color.white);
gameover.setPosition (getWidth()/2 -40, getHeight()/2);
add(gameover);
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