Handling Game Events

How to handle events in Game

// `game` is a JSGL Game instance
// game.on(CHANNEL_NAME, FUNCTION)

CHANNEL_NAME is a string of game channel name
FUNCTION is a callback function, called at event fire.
EXAMPLE

game.on('keyUp', (event) => {
    if(event.input.isKeyUp('s')){
        game.timeScale -= 0.1;
    }
    if(event.input.isKeyUp('w')){
        game.timeScale += 0.1;
    }
    game.timeScale = JSGL.Clamp(game.timeScale, 0, 1);
});

GameEvents List

Game Channel	Class	Description
none	GameEvent	Dedicated to hadling event
start	GameStartEvent	Called when game starts
loadAllResources	GameEvent	Called when resources are fully loaded
used in gameobj.	TickEvent	Called every frame
draw	DrawEvent	Called before drawing frame
spawnedGameObject	GameObjectSpawnEvent	Called at game object spawn
used in gameobj.	GameObjectDestroyEvent	Called at game object destroy
keyDown	KeyEvent	Holds information for input
keyUp	KeyEvent	Holds information for input
mouseMove	GameMouseEvent	Holds information for input
mouseClick	GameMouseEvent	Holds information for input
mouseDown	GameMouseEvent	Holds information for input
mouseUp	GameMouseEvent	Holds information for input
mouseScroll	GameMouseEvent	Holds information for input

Usage Events in GameObject

GameObject uses

• GameObjectSpawnEvent
• GameObjectDestroyEvent
• TickEvent

How to handle GameObject events

To handle GameObject events you need to override any of this function.

Function Name	Params	Description
Start	GameObjectSpawnEvent	Invoked at game object spawn.
Destroy	GameObjectDestroyEvent	Invoked at game object destroy.
Update	TickEvent	Invoked at every frame.
FixedUpdate	TickEvent	Invoked at last update in every frame.