martinwells

chrome --enable-memory-info

martinwells

window.performance.memory.totalJSHeapSize;	// currently used heap memory
window.performance.memory.usedJSHeapSize;	// total heap memory

martinwells

var lastUsedHeap = 0;  // remember the heap size

function checkMemory()
{
    // check if the heap size is this cycle is LESS than what we had last
    // cycle; if so, then the garbage collector has kicked in

    if (window.performance.memory.usedJSHeapSize < lastUsedHeap)
        console.log('Garbage collected!');
    lastUsedHeap = window.performance.memory.usedJSHeapSize;

martinwells

// declare bullet pools
var activeBullets = [];
var bulletPool = [];

// construct some bullets ready for use
for (var i=0; i < 20; i++)
    bulletPool.push( new Bullet() );

// a constructor/factory function
function getNewBullet()

martinwells

var b = new Bullet();

martinwells

var b = getNewBullet();

martinwells

if (bullet.collidingWith(enemyShip))  // boom!
    freeBullet(bullet); // return it to the pool

martinwells

if (bullet.collidingWith(enemyShip))  // boom!
    freeBullet(bullet); // return it to the pool

martinwells

function getNewBullet(x, y)
{
    // ... previous code

    // initialize the bullet 
    b.x = x;
    b.y = y;
    b.state = NORMAL;

    return b;

martinwells

git clone https://github.com/playcraft/gamecore.js.git