Online Book Reader

Home Category

HTML5 Canvas [161]

By Root 6515 0

//ConsoleLog.log("update player missile" + playerMissileCtr)

tempPlayerMissile = playerMissiles[playerMissileCtr];

tempPlayerMissile.x += tempPlayerMissile.dx;

tempPlayerMissile.y += tempPlayerMissile.dy;

if (tempPlayerMissile.x > xMax) {

tempPlayerMissile.x =- tempPlayerMissile.width;

}else if (tempPlayerMissile.x<-tempPlayerMissile.width){

tempPlayerMissile.x = xMax;

}

if (tempPlayerMissile.y > yMax) {

tempPlayerMissile.y =- tempPlayerMissile.height;

}else if (tempPlayerMissile.y<-tempPlayerMissile.height){

tempPlayerMissile.y = yMax;

}

tempPlayerMissile.lifeCtr++;

if (tempPlayerMissile.lifeCtr > tempPlayerMissile.life){

//ConsoleLog.log("removing player missile");

playerMissiles.splice(playerMissileCtr,1)

tempPlayerMissile = null;

}

}

}

function updateRocks(){

var tempRock = {};

var rocksLength = rocks.length−1;

//ConsoleLog.log("update rocks length=" + rocksLength);

for (var rockCtr=rocksLength;rockCtr>=0;rockCtr--){

tempRock = rocks[rockCtr]

tempRock.x += tempRock.dx;

tempRock.y += tempRock.dy;

tempRock.rotation += tempRock.rotationInc;

//ConsoleLog.log("rock rotationInc="+ tempRock.rotationInc)

//ConsoleLog.log("rock rotation="+ tempRock.rotation)

if (tempRock.x > xMax) {

tempRock.x = xMin-tempRock.width;

}else if (tempRock.xtempRock.x = xMax;

}

if (tempRock.y > yMax) {

tempRock.y = yMin-tempRock.width;

}else if (tempRock.ytempRock.y = yMax;

}

//ConsoleLog.log("update rock "+ rockCtr)

}

}

function updateSaucers() {

//first check to see if we want to add a saucer

if (saucers.length< levelSaucerMax){

if (Math.floor(Math.random()*100)<=levelSaucerOccurrenceRate){

//ConsoleLog.log("create saucer")

var newSaucer = {};

newSaucer.width = 28;

newSaucer.height = 13;

newSaucer.halfHeight = 6.5;

newSaucer.halfWidth = 14;

newSaucer.scoreValue = saucerScore;

newSaucer.fireRate = levelSaucerFireRate;

newSaucer.fireDelay = levelSaucerFireDelay;

newSaucer.fireDelayCount = 0;

newSaucer.missileSpeed = levelSaucerMissileSpeed;

newSaucer.dy = (Math.random()*2);

if (Math.floor(Math.random)*2==1){

newSaucer.dy*=-1;

}

//choose betweeen left or right edge to start

if (Math.floor(Math.random()*2)==1){

//start on right and go left

newSaucer.x = 450;

newSaucer.dx=-1*levelSaucerSpeed;

}else{

//left to right

newSaucer.x=-50;

newSaucer.dx = levelSaucerSpeed;

}

newSaucer.missileSpeed = levelSaucerMissileSpeed;

newSaucer.fireDelay = levelSaucerFireDelay;

newSaucer.fireRate = levelSaucerFireRate;

newSaucer.y = Math.floor(Math.random()*400);

saucers.push(newSaucer);

}

}

var tempSaucer = {};

var saucerLength = saucers.length-1;

//ConsoleLog.log("update rocks length=" + rocksLength);

for (var saucerCtr=saucerLength;saucerCtr>=0;saucerCtr--){

tempSaucer = saucers[saucerCtr];

//should saucer fire

tempSaucer.fireDelayCount++;

if (Math.floor(Math.random()*100) <=tempSaucer.fireRate

&& tempSaucer.fireDelayCount>tempSaucer.fireDelay ){

fireSaucerMissile(tempSaucer)

tempSaucer.fireDelayCount= 0;

}

var remove = false;

tempSaucer.x += tempSaucer.dx;

tempSaucer.y += tempSaucer.dy;

//remove saucers on left and right edges

if (tempSaucer.dx > 0 && tempSaucer.x >xMax){

remove = true;

}else if (tempSaucer.dx <0 &&tempSaucer.xremove = true;

}

//bounce saucers off over vertical edges

if (tempSaucer.y > yMax || tempSaucer.ytempSaucer.dy*=-1

}

if (remove==true) {

//remove the saucer

ConsoleLog.log("saucer removed")

saucers.splice(saucerCtr,1);

tempSaucer = null;

}

}

}

function updateSaucerMissiles() {

var tempSaucerMissile = {};

var saucerMissileLength = saucerMissiles.length-1;

for (var saucerMissileCtr=saucerMissileLength;

saucerMissileCtr>=0;saucerMissileCtr--){

//ConsoleLog.log("update player missile" + playerMissileCtr)

tempSaucerMissile = saucerMissiles[saucerMissileCtr];

tempSaucerMissile.x += tempSaucerMissile.dx;

tempSaucerMissile.y += tempSaucerMissile.dy;

if (tempSaucerMissile.x > xMax)

Return Main Page Previous Page Next Page

®Online Book Reader