How to unload/unmount a tile map that u load from json?

[zaquanishak]

Hi,
I want to know how cani i unload/unmount the tile map that i already load using json?
Please advise.

Regards,
Zachz

[robaldred]

Your tile map is mounted to the scene like all other entities, infact it's just a subclass of IgeEntity.
So like other entities to remove it completely use the following:

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tileMap.unMount();
tileMap.destroy();

[coolbloke1324]

Your tile map is mounted to the scene like all other entities, infact it's just a subclass of IgeEntity.
So like other entities to remove it completely use the following:

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tileMap.unMount();
tileMap.destroy();

Absolutely.

You can also just called tileMap.destroy() as this will automatically un-mount as well.

[zaquanishak]

Hi,
this is how i load my map

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ige.addComponent(IgeTiledComponent);
        ige.tiled.loadJson(tiledExample1, function (layerArray, layersById){
            console.log('Map Loaded....');
            for (i = 0; i < layerArray.length; i++) {
                layerArray[i]
                    .tileWidth(40)
                    .tileHeight(40)
                    .autoSection(20)
                    //.isometricMounts(false)
                    .drawBounds(false)
                    .drawBoundsData(false)
                    .mount(ige.client.backgroundScene);
            }
        });

and this is how i try to unmount or destroy in in clientNetworkEvents

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_onGoToDoor: function (data, clientId) {
        console.log('Map instruction received' , data.map);
        ige.client.tileMap.unMount();
    }

and its not working. I'm getting error call to undefined method.

Please advise.

Regards,
Zachz

[coolbloke1324]

Hi,
this is how i load my map

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ige.addComponent(IgeTiledComponent);
        ige.tiled.loadJson(tiledExample1, function (layerArray, layersById){
            console.log('Map Loaded....');
            for (i = 0; i < layerArray.length; i++) {
                layerArray[i]
                    .tileWidth(40)
                    .tileHeight(40)
                    .autoSection(20)
                    //.isometricMounts(false)
                    .drawBounds(false)
                    .drawBoundsData(false)
                    .mount(ige.client.backgroundScene);
            }
        });

and this is how i try to unmount or destroy in in clientNetworkEvents

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_onGoToDoor: function (data, clientId) {
        console.log('Map instruction received' , data.map);
        ige.client.tileMap.unMount();
    }

and its not working. I'm getting error call to undefined method.

Please advise.

Regards,
Zachz

Hi ya,

The "tileMap" is not a universal variable that you can access, that code was written as "pseudo-code". You have to use the layer id to retrieve the layer you want to access via the ige.$() method.

In your console type:

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ige.sceneGraph();

And then copy and paste the output here so we can see it. Each item in that output has an ID that you can then use in ige.$() to get the object.

Then you can get the layer you want and unMount it via:

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ige.$('myLayer_0').unMount();

or

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ige.$('myLayer_1').unMount();

or

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ige.$('myLayer_2').unMount();

or whatever the ID of the layer is.

[zaquanishak]

Hi,
I dont know what happen but i could not see my sceneGraph(). As u can see here

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for (i = 0; i < layerArray.length; i++) {
                layerArray[i]
                    .tileWidth(40)
                    .tileHeight(40)
                    .autoSection(20)
                    //.isometricMounts(false)
                    .drawBounds(false)
                    .drawBoundsData(false)
                    .mount(ige.client.backgroundScene);
            }

its the layerArray that has been mount to the backgroundScene one by one. So where should i attach the id? will the id be increament too? Do i need to have a for loop to unmount it?

Regards,
Zachz

[zaquanishak]

hi,
Here is my github https://github.com/zachzinho/IsometricGames

What im trying to do here is to change map whenever a character move to a specific tile. My problem is to change the map only for character of the client that go to that specific tile. What i have achieve by using texturemap() is when the character go to a specific tile yes the map change but it also update all client. Which mean whenever a character go to a specific tile, all client will be update to this new map. So how can i update only for a specific client? i try to store my client id into a variable in my client.js but when i want to use it back the value is undefined. So how do i store this cliend id so i can use the

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var ent = new IgeEntity()
    .streamMode(1)
    .streamControl(function(clientId) {
        // An example test, let's check if the entity's ID is "player"
        // and the clientId is "4857q9493249252343", if so, allow the
        // stream to send the data
        if (this.id() === 'player' && clientId === '4857q9493249252343') {
            return true;
        } else {
            return false;
        }
    });

this stream control to compare the id?
Sorry for my bad english.

Regards,
Zachz

[zaquanishak]

Hi,
I manage to load/destory map using the texture map but overtime the game become slower. Below is my code how i do it?
Below is from my character update function. What the code do is when the character reach the specific tile, it will send net command to server.

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if((tiles[0].x === 1) && (tiles[0].y === 1)){
                playerReachDoor = true;
                if(playerReachDoor === true){
                    ige.network.send('goToDoor' , {id: this.id() , map:2});
                    playerReachDoor = false;
                }

Here is where server receive the net command from client about changing map. Server send back the client which map to change.

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_onGoToDoor: function (data, clientId) {
        //console.log('map:--', data.map);
        if(data.map === 2){
            ige.network.send('goToDoor', {map: 'map2'}, clientId);
        }

        if(data.map === 1){
            ige.network.send('goToDoor', {map: 'map1'}, clientId);
        }

    }

And here where the client event receive it back and destory the map

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 _onGoToDoor: function (data, clientId) {
        console.log('Map instruction received' , data.map);
            if(data.map == 'map2'){
                if(ige.client.textureMap2){
                    ige.client.textureMap2.destroy();
                    ige.client.loadTileMap1();
                }

            }
            if(data.map == 'map1'){
                if(ige.client.textureMap1){
                    ige.client.textureMap1.destroy();
                    //ige.client.loadTileMap();
                }
            }
    }

Untitled.png

So my question is, does coding like this will affect the game performance? Please advise on this.

Regards,
Zachz

[coolbloke1324]

Hey ya,

The line:

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ige.client.textureMap2

Shows that you are holding a reference to the map object in memory even if you call .destroy() since ige.client.textureMap2 will still be referencing the object which means the browser's garbage collection cannot remove it from memory.

It is not a good idea to hold references to objects indefinitely. It is generally better to *not* store them in ige.client and instead, provide them with an id. Then you can reference them from ige.$(id) instead.

When you use .destroy() on an object, the engine automatically removes references to it from ige.$ so it can be garbage collected.

To assign an id to an object or entity you can create the entity then call it's .id() method like this:

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var ent = new IgeEntity()
    .id('myNewId');

That entity now has the id "myNewId" so you can get the entity back at any time via:

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var ent = ige.$('myNewId');

If you then call:

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ent.destroy();

Now if you do:

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var ent = ige.$('myNewId');

ent will === undefined because the object has been destroyed correctly.

[zaquanishak]

Hi,
Thanks rob. I manage to fixed it.

Regards,
Zachz