Setting up enemy game mechanics.

In this tutorial we’ll create schematics for the enemy’s movement, attack and death.

Enemy Movement: Schematic

First, we’ll set up the enemy’s movement – the enemy will be moved using NavMesh.

Open the Makinom editor, navigate to Schematics and create a new schematic. Change the following settings.

Check Variables

Add > Value > Variable > Check Variables

This node is used to check for variable conditions. We’ll use it to check the health of the enemy and player.

Click on Add Variable to add a variable condition.

Copy the variable condition and change the following settings.

NavMesh Destination

Add > Movement > NavMesh > NavMesh Destination

This node is used to set the destination of a NavMesh agent. We’ll use it to move the enemy to the player’s position.

This node is connected to the Success slot of the Check Variables node.

Moving Object

Target Position

Enable Component

Add > Game Object > Component > Enable Component

This node is used to enable/disable components. We’ll use it to disable the NavMesh agent component.

This node is connected to the Failed slot of the Check Variables node.

And that’s it for the schematic – click on Save Schematic and save it as EnemyMovement in Assets/Schematics/.

Enemy Attack: Schematic

Next, we’ll create the schematic handling the enemy’s attack. The enemy will attack the player while being within the enemy’s trigger.

Create a new schematic and change the following settings.

Settings

We’ll set up local variables as Machine Start Variables for easy setup in the machine component at a later time. When using the schematic in a machine component, the defined start variables will be added automatically, using their default values.

Machine Start Variables

Click on Add Start Variable to add a local start variable that will be exposed to the machine component’s inspector.

Again, click on Add Start Variable to add another local start variable.

Start Tagged Machine

Add > Machine > Start Tagged Machine

This node is used to start a tagged machine. We’ll use it to start a tagged machine with the tag damage, which will handle reducing the target’s health. The actual damage is stored in the local float variable damage (local start variable of the machine).

Machine Object

Starting Object

Tag Settings

Wait

Add > Base > Wait

This node is used to wait for some time. We’ll use it to wait for the enemy’s attack timeout (local start variable).

And that’s it for the schematic – click on Save Schematic and save it as EnemyAttack in Assets/Schematics/.

Enemy Death: Schematic

When an enemy dies, we’ll play an audio clip, disable the collider, play a death animation and move the enemy’s game object down into the floor.

Create a new schematic and change the following settings.

Settings

Since we’ll use this schematic for different enemies, we want to play different audio clips for them. Adding an audio clip as a resource will allow us to override it in the machine’s settings.

Audio Clips

Click on Add Audio Clip Resource to add an audio clip resource.

Play Sound

Add > Animation + Audio > Audio > Play Sound

This node is used to play audio clips. We’ll use it to play the death audio clip resource.

Play On

Audio Settings

Emit Particles

Add > Game Object > Component > Emit Particles

This node is used to start/stop emitting particles. We’ll use it to start a death particle effect.

Enable Component

Add > Game Object > Component > Enable Component

We’ll use this node to disable the capsule collider.

Play Mecanim Animation

Add > Animation + Audio > Mecanim > Play Mecanim Animation

This node is used to play an animation or set parameters of an animator. We’ll use it to play the death animation of the enemy by setting the Dead trigger parameter.

This node is connected to the Success slot of the Check Speed node.

Change Variables

Add > Value > Variable > Change Variables

This node is used to change variables. We’ll use it to increase the score by the enemy’s points. The score is stored in the global int variable score, the points are stored in the enemy’s object int variable points.

Click on Add Variable to add a variable change.

Wait

Add > Base > Wait

We’ll wait for a second to allow the enemy’s death animation to finish.

Move Into Direction

Add > Movement > Movement > Move Into Direction

This node is used to move a game object into a direction. We’ll use it to move the enemy into the floor.

Moving Object

Movement Settings

Direction

And that’s it for this schematic – click on Save Schematic and save it as EnemyDeath in Assets/Schematics/.

Take Damage: Schematic

Finally, we’ll set up the schematic that reduces the health and starts a tagged machine with the tag death in case the health is reduced to 0. This schematic will also be used by the player to take damage.

Create a new schematic and change the following settings.

Settings

Since we’ll use this schematic for different enemies, we want to play different audio clips for them. Adding an audio clip as a resource will allow us to override it in the machine’s settings.

Audio Clips

Click on Add Audio Clip Resource to add an audio clip resource.

Play Sound

Add > Animation + Audio > Audio > Play Sound

We’ll use it to play the hurt audio clip resource.

Play On

Audio Settings

Change Variables

Add > Value > Variable > Change Variables

We’ll usethis node to reduce the health (object variable) by the damage, a local variable passed on by the schematic that started this schematic (tagged machine).

Click on Add Variable to add a variable change.

Check Variables

Add > Value > Variable > Check Variables

We’ll use this node to check if the health reached 0.

Click on Add Variable to add a variable condition.

Start Tagged Machine

Add > Machine > Start Tagged Machine

We’ll use this node to start the death tagged machine when the health is gone.

This node is connected to the Success slot of the Check Variables node.

Machine Object

Starting Object

Tag Settings

And that’s it for this schematic – click on Save Schematic and save it as TakeDamage in Assets/Schematics/.

The next tutorial will handle setting up the enemies.