In this tutorial we’ll set up a throwable grenades.

The grenade is thrown to a position the player selects and explodes after some time. The time will stand still while selecting the position to throw to, and we’ll display a selection cursor following the mouse (in the game world).

We’ll set up:

• schematic to pulse the cursor (scaling it up/down)
• schematic to throw the grenade
• schematic to explode the grenade
• grenade item
• update the control map
• add grenades to the player’s start inventory
• set up the grenade and cursor prefabs

Let’s get to it.

Cursor Pulse Schematic #

This one will be pretty simple – it’ll scale the cursor up and down and restart, until the game object is destroyed again (which stop’s it’s Auto Machine that uses the schematic).

Navigate to Schematics and start working on a new schematic.

Settings #

We’ll disable using Unity and Makinom timescales – i.e. the schematic will perform in unscaled time.

This is needed, since the cursor is displayed during timescale being set to 0.

Change Scale #

Add Node > Movement > Movement > Change Scale

We’ll use this node to scale the game object over time.

The cursor’s game object has a scale of 5 (on all axes) when it’s spawned, we’ll increase the scale to 5.5.

Change Scale #

Duplicate the Change Scale node. We’ll scale back to 5.

Restart Schematic #

Add Node > Machine > Restart Schematic

This node will restart the schematic in the next frame. No further settings needed.

And that’s it for the schematic. Click on Save Schematic to save it, e.g. as CursorPulse.

Grenade Throw Schematic #

The position we throw the grenade to is selected using a raycast during the player’s target selection – this is availabe as the Starting Object of the schematic (it’s an empty game object that’ll be destroyed after the item action ended).

Our grenade throw will be similar to the Spit Attack we already set up, i.e. we’ll rotate to the target, throw the thing and activate it … more or less.

Create a new schematic.

Settings #

We’ll block the player controls.

Prefabs #

We also add the grenade prefab.

Rotate To #

Add Node > Movement > Rotation > Rotate To

We’ll do a quick rotation to the Starting Object.

Play Sound #

Add Node > Audio > Audio > Play Sound

Combatant Animation #

Add Node > Animation > Combatant > Combatant Animation

We’ll play the combatant’s attack animation (looks like a throw without the staff).

Consume Costs #

Add Node > Battle > Action > Consume Costs

This node will consume the action’s use costs, i.e. remove 1 grenade from the user’s inventory.

No further settings.

Spawn Prefab #

Add Node > Game Object > Prefab > Spawn Prefab

We’ll now spawn the grenade prefab.

You could also use the position of the combatant’s hand (or any other child object) if you want, but roughly positioning it with an offset is enough.

Wait #

Add Node > Base > Wait

We’ll wait for a frame (0 seconds) to give the prefab time to spawn.

Activate Damage Dealer #

Add Node > Battle > Action Outcome > Activate Damage Dealer

We’ll now activate the damage dealer on the spawned prefab (via the ability’s activation tags, which we’ll set up after this).

The damage dealer is placed on a disabled game object of the grenade prefab, but we can still activate it. We’ll later enable the game object when it’s time to do damage.

Rigidbody Change Velocity #

Add Node > Game Object > Rigidbody > Rigidbody Change Velocity

Instead of adding a force, we’ll this time set the velocity that’s calculated to reach the position we want to hit.

This could be quite complicated, but luckily Makinom comes with the Shot Velocity Vector3 value selection to handle that for us with a few simple settings.

Start Tagged Machine #

Add Node > Machine > Start Tagged Machine

We’ll now start a tagged machine on the grenade (spawned prefab) that’ll handle wait time and explosion for us without blocking the user any longer.

Wait #

Add Node > Base > Wait

We’ll now wait for the stored duration

And that’s it for the schematic. Click on Save Schematic to save it, e.g. as GrenadeThrow.

Grenade Boom Schematic #

And the last schematic, handling the grenade’s explosion. It’ll be started by the tagged machine on the grenade.

We’ll mainly use activation and destruction of game objects and components this time. The grenade’s prefab has already everything set up, we just need to use it:

• enable it’s collider (after a short wait to not collide with the thrower)
• enable the explosion particle effect, unparent it and destroy it after time
• enable the damage dealer’s game object

Create a new schematic.

Wait #

Add Node > Base > Wait

We’ll wait for a short time to give the grenade enough time to leave the thrower’s game object.

Enable Component #

Add Node > Game Object > Component > Enable Component

We’ll enable the Sphere Collider component on the grenade (i.e. the Machine Object).

Wait #

Add Node > Base > Wait

And we wait for another 3.3 seconds – i.e. the grenade will explode after 3.5 seconds.

Activate Object #

Add Node > Game Object > Game Object > Activate Object

We’ll now activate the BigExplosion child object, which is the explosion particle effect.

Activating (i.e. enabling) the game object will start it’s particle system and play the effect.

Destroy Object #

Add Node > Game Object > Game Object > Destroy Object

We’ll now mark the BigExplosion child object to be destroyed after 3 seconds.

We do this because we’ll also unmount the game object from the grenade next. The explosion should be visible longer than the grenade is alive (it’ll be destroyed shortly after doing damage).

Play Sound #

Add Node > Audio > Audio > Play Sound

We play an explosion sound on the explosion effect.

Mount Object #

Add Node > Game Object > Game Object > Mount Object

And now we’ll unmount the explosion from the grenade.

Activate Object #

Duplicate the previous Activate Object node, this time we activate the DamageDealer child object of the grenade.

The Damage Dealer component on it is already activated (from the throwing schematic) and will do damage after we activate it.

Wait #

Add Node > Base > Wait

And finally, we wait another short time.

The tagged machine we’ll set up on the grenade will automatically destroy the game object when it finishes, so this wait time is used to give the damage dealer enough time to do damage.

And that’s it for the schematic. Click on Save Schematic to save it, e.g. as GrenadeBoom.

Battle Range Template #

We’ll add a new battle range template for the grenade, which as a use range of 8.

Navigate to Templates > Battle Range Templates and add a new template.

Range Settings > Maximum Range #

Grenade Item #

We can build upon the potion we set up in the last tutorial. The grenade will deal 50 damage to HP.

Navigate to Inventory > Items and copy the Potion item.

Use Settings > Battle Settings > Reuse Settings #

We’ll change the reuse time to 5 seconds

Target Selection Settings #

The grenade should damage all – and we’ll use a raycast (and cursor) to select a target position to throw to.

Raycast Settings #

Use Range Settings #

Target Settings > Target Changes > Target Change 0 > Status Change 0 #

Instead of adding 50, we’ll subtract 50 from HP.

Battle Animation > Battle Animation 0 #

Battle Animation > Damage Dealer Settings #

Updating the Control Map #

We’ll now update the control map.

Navigate to Base/Control > Control Maps and select the Default control map.

Control Key 3 #

Input Settings #

Action Settings #

Conditions #

Updating Ellen #

We add a few grenades to Ellen’s start inventory.

Navigate to Combatants > Combatants and select Ellen.

Inventory & Equipment > Start Inventory #

Battle Menu #

While we don’t use the battle menu, it’s still active in the background during things like the target selection – and also during our raycast targeting.

We make use of that and set the time scale to 0 while the battle menu is displayed.

Navigate to UI > Battle Menus and select the Default battle menu (this is already set up as the default battle menu in Battles > Battle System > General Settings).

Save Changes #

That’s it for the editor setup.

Don’t forget to save your changes by clicking on Save Settings at the bottom of the editor.

Cursor Prefab Setup #

We still need to set up our prefabs, we’ll start with the Grenade Cursor.

Open the GrenadeCursor prefab for editing – you can find it in Assets/Tutorial Assets/Prefabs/.

Auto Machine #

Add an Auto Machine component using the component menu.

Start Settings #

Machine Execution Settings #

That’s it for the cursor prefab – save the changes.

Grenade Prefab Setup #

Open the Grenade prefab for editing – you can find it in Assets/Tutorial Assets/Prefabs/Weapons/.

Add Tagged Machine #

Add a Tagged Machine component to the prefab’s root using the component menu.

Start Settings #

Machine Execution Settings #

Point Of Interest #

Add a Point Of Interest component to the prefab’s root using the component menu.

This component will be detected by the move AI and let the enemies move toward it – i.e. we’ll lure them to the grenade to get blown up!

Add Damage Dealer #

Add a Damage Dealer component to the disabled DamageDealer child object of the prefab using the component menu.

Activation Settings #

If you remember, we used the activate tag boom in the grenade item, so we need to use that here as well.

And that’s it for the grenade prefab’s setup – save the changes.

Testing #

Hit play and throw some grenades.

Remember, the grenade key is E.

Selecting a position to throw to works – stops the time and the cursor pulsates

And enemies (that don’t have a target) are lured to it through the Point Of Interest component.

And killed – great!

 

Next, we’ll set up a HUD to show our available items.