[Godot RPG] #3: Attack & Object

Welcome to lesson 3 in the series of RPG game programming with Godot :3

Okay, in this post I will guide you to attack with animation player & Hitbox & Hurtbox and Object with Godot

And let’s get started

Attack

We will create a new Sense to be a Hitbox to check when we attack and a hurtbox to check that when the hitbox it collides, it loses health.

Hitbox & HurtBox

Create the Hitbox and the root node is Area2D and then add the CollisionShape2D.

Then create a new script

Here I will use the export variable to export to the Inspector for easy adjustment for each character. You can change the language outside of Godot’s interface to Vietnamese for easy

Then save it and you’re done.

Then create a new Sense as HurtBox then save it as Hitbox and don’t need to create a script because we will connect the signal to the player

Tap then hit

We have to check if we click to attack. You can Edit the Input, if you’re lazy, use it like a picture :vv. Godot has many options!

Then the status will be equal to ATTACK.

In ATTACK: we will create a new function called trangthai_attack which will have code to run animtion attack

Then next you call it on ATTACK: okay.

Then when attacking we have to set speed = 0 so that when attacking it won’t move

After the attack is done, it will stay still because it has not returned to the IDLE state so we have to set it back.

I will create a new function

Then in AnimationPlayer > Animation AtTACk > add track method (this is the track that will run the Godot function which has this convenience :3)

Then choose Player because the Player only has the code to run:

Then select the function

Then adjust it to the end because at the end of the animation = run the function

And so you will move normally again

Instance & Animation Player

Next we will Instance it in Godot. Instance I don’t even know what to call Vietnamese anymore@@.

Then click add 2 Hitbox & Hurtbox then right click on 2 click Editable as children so we can adjust it as a child node and set collishape too.

Well before that, we have to set the mask/layer first. Go to Project > Project Setting > 2D Render / 2D Physics

Please set like me. Set for both 2D Render and 2D Physics

Then in the player’s Hitbox on the attribute table > collision, I will uncheck the layer and in the Mask will tick it to collide with Hurtbox_E ie when the player attacks it will collide with the enemy’s hurtbox.

Then in the HurtBox Layer, you tick the box Hurtbox_P in the blank mask

Next is to adjust the CollisionShape2D of HurtBox to fit the character.

Then next will set collisionshape2D of Hitbox with AnimationPlayer.

In Hitbox’s Collisionshape2D, click on the key to add a quick track

You will then position when it attacks to turn it off/on.

Since it hasn’t attacked yet, I will leave Disabled = true at 0 seconds and then check the next few seconds if it comes to attack action, set disable = false and then after withdrawing the sword, disabled = true

Then run it again and it will be fine and perfect :33. I love this in Godot

Object

Next we will create object with Godot.

Download link: https://elthen.itch.io/pixel-art-destructible-objects

Create a new Sense

Here, create:

Area2D > Sprite – CollisionShape2D – AnimationPlayer

In the sprite, please put the image in and I think it’s a bit big, you should set the scale accordingly.

Vframes = 12

Hframes = 7

If not, then reimport it.

Then next in AnimationPlayer create 2 animations Hit and Destroy. Hit is the hit animation and Destroy is the destroyed animation.

Here I will be the Box you want to change.

Hit : 7-9

Destory:10-13

In animation destroy I will apply the same call method above.

destroy() contains the queue_free() statement

Then create a new script. here we don’t need Hitbox or Hurtbox because this box is already an area2d node.

we will set collisionshape2D for it and then connect the signal. but note that if you follow the area2D Button like me, you will be at a disadvantage when the player collides with it. If you use StaticBody to make it and then add Hurtbox to it, it will be better.

Connect signal Area enterd offline.

I will create the variable hp = 10 to have the base when the player attacks.

Then in the signal function, I will check if the name area = “Hitbox”, then the hp will be equal to the damage of the area minus hp. The print is what I use to check the HP to see if I have entered it, Godot.

Then set the Layer to Hurtbox_E and uncheck the Mask.

Next we need to check if the player attacks it will stop the animation hit and when the health runs out run the animation destroy

Here I will function _process(): to check every second if hp <= 0 then it will run animation and then self-destruct

Then Next to make sure you are at ANimation hit, click the circle below the image so that when it starts it runs the animation hit, not destroy.

Note: Object was stupid at first, so I sympathize :V. When running the game Ọbject will not collide with the player, if you want you have to change it to StaticBody2D or KinematicBody2D and then add hurtbox > connect the signal and then apply the above code.

See you in the next article of the series of RPG game programming with Godot