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https://github.com/sunsided/zenva-puzzle-platformer

A puzzle platformer experiment in Unity2D
https://github.com/sunsided/zenva-puzzle-platformer

mini-degree platform-game unity unity2d zenva

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A puzzle platformer experiment in Unity2D

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README 

        
# Industrial Jones



![](.readme/editor-1.png)



Note that this is not a complete game (although it does come with a

complete set of levels). Some final tweaking and bug fixing is required

to actually make this work.



## Lessons Learned



- When working with sprites, have a `Sprites` asset folder with a

  `Tiles` subdirectory. The sprite images (PNG, etc.) are going to be placed

  in the `Sprites` directory, while the tilemaps and tiles generated from it

  are going to be placed withing `Sprites/Tiles`.

- The Sprite Editor allows the placement of a custom "Physics Shape" that defines

  the shape of the collision polygon. To update the collision shape on tiles that

  are already placed, the collider needs to be disabled and re-enabled.

  - Instead of changing the physics shape to a rectangle in the sprite editor,

    it might make sense to set the sprite's collider type to `Grid` instead (from the

    default of `Sprite`).

  - The ladder sprite had its shape auto-generated and contained holes,

    which was fixed manually by removing some vertices from the shape polygon

    in the Sprite Editor.

- In the Editor, an Icon gizmo can be assigned to any game object

  In 2019.3.0b2 this is done by clicking on the icon next to the active/enable

  checkbox in the Inspector. In the screenshot above, the waypoints for the

  sawblades are using label icons as gizmos.

- Using different tilemaps for different purposes works pretty well:

  Background tilemaps don't use a collider, while "Ground" tilemaps can;

  tilemaps can be assigned to different _layers_ for collision checks.

  - The "Hazard" tilemap used in this game is used for hazard objects such

    as acid/poison and spikes; it is on the "Hazard" layer and uses (composite) colliders.

  - The "Climbable" tilemap (on the "Climbable" layer) is used for ladders;

    tiles here have (non-composite) tilemap colliders that are configured

    to be triggers.

- Collisions with the hazard layer are checked by comparing to

  `other.gameObject.layer` in the `OnCollisionEnter2D()` method.

- Using a Rigidbody 2D with a body type of `Static` results in discrete

  collisions that can result in objects moving "into" the collider when

  they are too fast. Due to this, the player character can get stuck in

  the ground when falling. Switching the body type to `Kinematic` and

  setting the collision detection to `Continuous` (from the default of

  `Discrete`) fixes this issue.

- Portals are being used to teleport the player from one scene to another.

  In this case, `PlayerPrefs` are used to store the ID of the portal to

  move to, and the player is being spawned at the stored position upon

  loading of a scene.



## Things to learn



- Right now, the invisible ladder top platform needs to be placed manually.

  This is an issue, because the tile is placed on the grid, while the platform

  is added manually afterwards. Apparently custom brushes can be used to automate

  this behavior, such that the platform would be added, whenever a ladder top

  is being painted.

- Right now, each scene duplicates the game manager, HUD, etc.

  Instead, investigating into additive scene loading may be worthwile.