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break;

case GAME_STATE_EVALUATE_OUTCOME:

currentGameStateFunction = gameStateEvaluateOutcome;

break;

case GAME_STATE_ANIMATE_EXPLODE:

currentGameStateFunction = gameStateAnimateExplode;

break;

case GAME_STATE_CHECK_FOR_GAME_OVER:

currentGameStateFunction = gameStateCheckForGameOver;

break;

case GAME_STATE_PLAYER_WIN:

currentGameStateFunction = gameStatePlayerWin;

break;

case GAME_STATE_PLAYER_LOSE:

currentGameStateFunction = gameStatePlayerLose;

break;

}

}

function gameStateWaitForLoad(){

//do nothing while loading events occur

//console.log("doing nothing...")

}

function gameStateInit() {

tileSheet = new Image();

tileSheet.src = "tanks_sheet.png";

tileSheet.onload = itemLoaded;

switchGameState(GAME_STATE_WAIT_FOR_LOAD);

}

function itemLoaded(event) {

loadCount++;

////console.log("loading:" + loadCount)

if (loadCount >= itemsToLoad) {

switchGameState(GAME_STATE_TITLE)

}

}

function gameStateTitle() {

if (screenStarted !=true){

fillBackground();

setTextStyleTitle();

context.fillText ("Micro Tank Maze", 160, 70);

context.fillText ("Press Space To Play", 150, 140);

screenStarted = true;

}else{

//wait for space key click

if (keyPressList[32]==true){

//console.log("space pressed");

switchGameState(GAME_STATE_NEW_GAME);

screenStarted = false;

}

}

}

function gameStatePlayerWin(){

if (!screenStarted){

score += goalScore;

fillBackground();

setTextStyleTitle();

context.fillText ("YOU WON THE GAME!", 135, 70);

context.fillText ("Final Score: " + score, 150, 100);

context.fillText ("Number of enemy: " + enemyMax, 150,130);

if (score > highScore){

highScore = score;

context.fillText ("NEW HIGH SCORE!", 150,160);

}

context.fillText ("High Score: " + score, 150, 190);

screenStarted = true;

enemyMax++;

if (enemyMax >50){

enemyMax = 50;

}

context.fillText ("Number of enemy for next game: " +

enemyMax, 100,220);

context.fillText ("Press Space To Play", 150, 300);

}else{

//wait for space key click

if (keyPressList[32]==true){

//console.log("space pressed");

switchGameState(GAME_STATE_NEW_GAME);

screenStarted = false;

}

}

}

function gameStatePlayerLose(){

if (!screenStarted){

fillBackground();

setTextStyleTitle();

context.fillText ("SORRY, YOU LOST THE GAME!", 100, 70);

context.fillText ("Final Score: " + score, 150, 100);

context.fillText ("Number of enemy: " + enemyMax, 150,130);

if (score > highScore){

highScore = score;

context.fillText ("NEW HIGH SCORE!", 150,160);

}

context.fillText ("High Score: " + score, 150, 190);

screenStarted = true;

context.fillText ("Number of enemy for next game: " +

enemyMax, 100,220);

context.fillText ("Press Space To Play", 150, 300);

}else{

//wait for space key click

if (keyPressList[32]==true){

//console.log("space pressed");

switchGameState(GAME_STATE_NEW_GAME);

screenStarted = false;

}

}

}

function gameStateNewGame(){

score = 0;

enemy = [];

explosions = [];

playField = [];

items = [];

resetPlayer();

createPlayField();

renderPlayField();

switchGameState(GAME_STATE_WAIT_FOR_PLAYER_MOVE);

}

function createPlayField(){

var wallCount = 0;

var playerCount = 0;

var enemyCount = 0;

var goalCount = 0;

var roadCount = 0;

//fill with road

for (var rowCtr=0;rowCtr<15;rowCtr++){

var tempRow = [];

for (colCtr=0;colCtr<15;colCtr++) {

tempRow.push(roadTile)

}

playField.push(tempRow);

}

//console.log("playField=" + playField);

//create items array

for (rowCtr=0;rowCtr<15;rowCtr++){

var tempRow = [];

for (colCtr=0;colCtr<15;colCtr++) {

tempRow.push(0);

}

items.push(tempRow);

}

var randRow;

var randCol;

//placewalls

for (var wallCtr=0;wallCtrvar wallLocationFound = false;

while(!wallLocationFound){

randRow = Math.floor(Math.random()*15);

randCol = Math.floor(Math.random()*15);

if (playField[randRow][randCol]==roadTile){

playField[randRow][randCol] = wallTile;

wallLocationFound = true;

}

}

}

//place enemy

for (var enemyCtr=0;enemyCtr

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