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limit hero movement inside canvas frame #14

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limit hero movement inside canvas frame #14

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20 changes: 14 additions & 6 deletions js/game.js
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Original file line number Diff line number Diff line change
Expand Up @@ -53,23 +53,31 @@ var reset = function () {
hero.y = canvas.height / 2;

// Throw the monster somewhere on the screen randomly
monster.x = 32 + (Math.random() * (canvas.width - 64));
monster.y = 32 + (Math.random() * (canvas.height - 64));
monster.x = 32 + (Math.random() * ((canvas.width - 32) - 65));
monster.y = 32 + (Math.random() * ((canvas.height - 32) - 68));
};

// Update game objects
var update = function (modifier) {
if (38 in keysDown) { // Player holding up
hero.y -= hero.speed * modifier;
if (hero.y > 32) {
hero.y -= hero.speed * modifier;
}
}
if (40 in keysDown) { // Player holding down
hero.y += hero.speed * modifier;
if (hero.y < canvas.height - 68) {
hero.y += hero.speed * modifier;
}
}
if (37 in keysDown) { // Player holding left
hero.x -= hero.speed * modifier;
if (hero.x > 32) {
hero.x -= hero.speed * modifier;
}
}
if (39 in keysDown) { // Player holding right
hero.x += hero.speed * modifier;
if (hero.x < canvas.width - 65) {
hero.x += hero.speed * modifier;
}
}

// Are they touching?
Expand Down