“How to Modify and Adding new Levels”

In the upper right side you have the layers and in the lower right side you find the tilesets: "metatiles" and "tiles".
You can show and hide each layer by using check boxes, this feature may be very useful during the editing of the level, anyway, keep in mind that only visible layers will be shown into the game , so, when you export the level into the JSON file remember to switch on layers you need.

Background layer is at the bottom of the layer list, it is a tile layer and it has a merely graphic function. It's made by the tiles contained by the tileset named "tiles".

Path is another tile layer but it will be not visible during the game. It's important you keep this name for this layer.
It is made by the tiles contained in "metatiles" tileset and its function is to tell to entities (player and enemy) the direction they can take in every point of the map.
When you modify the disposition of the background of the level you must modify the Path layer in accordance to it.

dots is the tile layer holding static collectable objects the player will pick up in order to finish the game. It's important you keep this name for this layer.

Entities is an object layer and it contains the player and teleport objects. Images shown in the editor are only placeholders with the only function of facilitate the editing process. Real graphic of the player is taken from its animation sheet (data/img/sprite/player.png) while teleport have no graphic during the game.

coins is an object layer and may contains animated collectable objects and the power up pills that will be collected by the player. Even in this case images shown in the editor for those objects are only for your convenience. Real graphics for collectables and pills are taken from their animation sheets (data/img/sprite/dots.png and data/img/sprite/pills.png).

Enemies is an object layer and contains the enemies. Images shown in the editor for those entities are only for your convenience. Real graphic for each enemy is taken from its animation sheet. Animation sheet files for enemies are defined inside the configuration file.

overlay layer is an optional level containing the graphic that must be shown over the player and the enemies.

From the Map menu select Resize Map... and a dialog window will appear. From the dialog, insert the new width and height expressed in number of tiles. To figure out the size in pixel you must multiply those values by 32.

Select the player object and right-click over it, from the menu select Object Properties....
It will appears a dialog window showing the object properties.
Here, for the player object, if you wish, you can add the properties: the velocity (normal speed) and the powerup_velocity (speed on power-up time).
Those properties, if set, will override the global values set in configuration file.
This way you vary the player velocity for levels.

Select the an enemy object and right-click over it, from the menu select Object Properties....
It will appears a dialog window showing the object properties.

Type field: here you set the graphic appearance of the enemy. The value of this field is the filename of the animation sheet without the extension.
Lets see an example

Animation sheet is data/assets/images/sprite/green_enemy.png
Inside configuration file are set enemies files :

// Enemies files
var ENEMIES_FILES =[
	"yellow_enemy.png",
	"magenta_enemy.png",
	"red_enemy.png",
	"green_enemy.png"
	];

As you see green_enemy.png is listed here. If you will add new enemies, remember to add them here to the list.
Inside Tiled, into the enemy property, the Type field must be set to green_enemy to link to that one.

behavior property can be set to random or chase.

• If set to random make wandering the enemy into the labyrinth.
• If set to chase the enemy will try to chase the player.

delay property let you set an amount of time, at the beginning of the level, each enemy stays inactive before start moving along the labyrinth. Value is an integer number expressed in milliseconds (1000 ms = 1 second))

keepAlive property, if exists and set to true, let the enemies being active even if not visible on the screen. If you have activated the radar feature you may wish the enemy appear moving even if distant from the player position, otherwise, if you don't have radar showing enemies movements outside the game screen, you can save some CPU power by setting this parameter to false or removing it at all.

velocity this property, if set, is the speed of the enemy and overrides the global value set in config file.

powerup_velocity this property, if set, is the speed of the enemy during Player powerup time and overrides the global value set in config file.

Select a teleport object and right-click over it, from the menu select Object Properties....
It will appears a dialog window showing the object properties.
Teleports have two properties: id that is an unique number that identify that specific teleport object and destination that is the id of the other teleport where player or enemies were teleported to.
You can link teleport 1 with teleport 2 and teleport 2 with teleport 1 for a specular behavior or you can link teleport 1 with teleort 2, teleport 2 with teleport 3 and teleport 3 with teleport 1 for a circular behavior.
Teleport objects will not produce any graphic output during the game, so, you must arrange the background graphic to indicate their presence.