Canvas Games: Part II - HTML5 Canvas - page 830

camera . y = 0 ;

keyPressList = [];
//console.log("camera.rows=", camera.rows, "camera.cols=", camera.cols);
gameLoop ()

}

function function runGame () {

camera . dx = 0 ;
camera . dy = 0 ;
//check input
iif ( keyPressList [ 38 ]){
console . log ( "up" );
camera . dy =- scrollRate ;

}
iif ( keyPressList [ 40 ]){
console . log ( "down" );
camera . dy = scrollRate ;

}

iif ( keyPressList [ 37 ]){
console . log ( "left" );
camera . dx =- scrollRate ;

}
iif ( keyPressList [ 39 ]){
console . log ( "right" );
camera . dx = scrollRate ;

}

camera . x += camera . dx ;
camera . y += camera . dy ;

iif ( camera . x <= 0 ) {
camera . x = 0 ;
colBuffer = 0 ;
} else

else iif ( camera . x > ( world . width - camera . width ) - scrollRate ) {
camera . x = world . width - camera . width ;
colBuffer = 0 ;
} else else {

colBuffer = 1 ;

}

iif ( camera . y <= 0 ) {