Canvas Game Essentials - HTML5 Canvas - page 424

function gameStatePlayerStart(){
fillBackground();
renderScoreBoard();
if (player.alpha < 1){
player.alpha += .02;
context.globalAlpha = player.alpha;
}else{
switchGameState(GAME_STATE_PLAY_LEVEL);
}
renderPlayerShip(player.x, player.y,270,1);
context.globalAlpha = 1;
updateRocks();
renderRocks();
}
function gameStatePlayLevel(){
checkKeys();
update();
render();
checkCollisions();
checkForExtraShip();
checkForEndOfLevel();
frameRateCounter.countFrames();
}
function resetPlayer() {
player.rotation = 270;
player.x = .5*xMax;
player.y = .5*yMax;
player.facingX = 0;
player.facingY = 0;
player.movingX = 0;
player.movingY = 0;
player.alpha = 0;
player.missileFrameCount = 0;
}
function checkForExtraShip() {
if (Math.floor(score/extraShipAtEach) > extraShipsEarned) {
playerShips++
extraShipsEarned++;
}
}
function checkForEndOfLevel(){
if (rocks.length==0) {
switchGameState(GAME_STATE_NEW_LEVEL);
}
}
function gameStatePlayerDie(){
if (particles.length >0 || playerMissiles.length>0) {
fillBackground();
renderScoreBoard();