In the documentation for versions 3.5 and 4.3, it mentions that hot reloading is possible:

3.5: https://docs.godotengine.org/en/3.5/getting_started/introduction/godot_design_philosophy.html

4.3: https://docs.godotengine.org/en/4.3/getting_started/introduction/godot_design_philosophy.html

Godot tries to provide its own tools to answer most common needs. It has a dedicated scripting workspace, an animation editor, a tilemap editor, a shader editor, a debugger, a profiler, the ability to hot-reload locally and on remote devices, etc.

The Godot editor runs on the game engine. It uses the engine's own UI system, it can hot-reload code and scenes when you test your projects, or run game code in the editor. This means you can use the same code and scenes for your games, or build plugins and extend the editor.

But how exactly do you perform it?

For example, in Flutter, if you type r or shift + r in the terminal after running $ flutter run, it performs a hot reload. How do you do something similar in Godot? Does simply saving a GDScript file trigger hot reload? (It doesn't seem to work that way for me...)

(More specifically, in Flutter, r is hot reload and shift + r is hot restart.)

I am editing GDScript using either VSCode or the editor included with Godot, and I am running it using the play button(attached below) in Godot.

Since this is a large project, providing a minimal code example might be time-consuming or even impossible. Could you simply explain the steps for performing a hot reload? Is it possible to do this using only the inspector? Is it not possible to directly modify the GDScript file for this? Also, is the hot reload triggered automatically, or do I need to press a button to initiate it?

If I can understand the correct patterns and limitations for performing hot reloads accurately, I think I’ll be able to experiment on my own. (Or, I can give up on the patterns that don’t work.)

My problems with OOP:

For a while now, I have been attempting to make full games on Godot, but I keep running into issues around poor organization and planning with my classes and OOP architecture. After days of working on a project, I would run into a devastating issue with the way I organized my class hierarchy, resulting in me having to restart or give up on the project to not waste time to go through and fix every class in the class hierarchy. I recently have started to be way too timid to get anything done with my project, fearing that one mistake in my organization could cause me to restart again.

What I think the functionality of Component-based architecture is:

When I came across component-based architecture, I thought I could be able to make a base class and then integrate component classes that serve separate functionalities to the base class, so I wouldn't have to make large class hierarchies and better manage and organize my code.

Why I need help with implementing component-based architecture:

While trying to implement a component-based design, I found that I had no idea how to exactly make one work at all. I don't understand how I could integrate the functionality of one class into another without having prebuilt code that is made directly for each possible component, which beats the purpose of component-based architecture. I don't know how I get the base class to properly run component code without directly and consciously addressing each type of component. I keep trying to do research on my own, but I just end up getting more confused as I try to look it up.

GameFromScratch.com
Godot 4.3 Released

The first major release of the Godot Game Engine of 2024 (Godot 4.2 was released in November 2023), Godot 4.3 is jam packed with new features. In fact, this release contains almost 3,500 commits since 4.2, with contributions from over 500 contributors! Highlight new features of the Godot 4.3 release […]

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GameFromScratch.com
Tree3D Procedural Tree Add-On For Godot

Tree3D is a Godot Extension (implemented via GDExtension) for Godot Engine 4.1 or higher that is used to create procedural trees. If you do not wish to build the extension from source, there are precompiled Windows binaries available here. The project is open source, implemented in C++ and released under […]

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GameFromScratch.com
Marvel Snap Developer Moving to Godot Engine

The developer of the popular Unity mobile title Marvel Snap, have just announced they are using the Godot game engine for future game development. In addition they have invested in Godot based company W4Games (learn more). Details from Venture Beat: Second Dinner said it will invest in W4 Games and it will also […]

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SuperStarfighter is a fast-paced local party game for up to 4 players. Outmaneuver and shoot your opponents in a 2d top-down arena, and become an intergalactic champion!

SuperStarfighter is a fast-paced local party game for up to 4 players. Outmaneuver and shoot your opponents in a 2d top-down arena, and become an intergalactic champion!

GameFromScratch.com
Godot, Unity and Unreal Engine Blender Add-On Review

As part of the Blender Markets Essential Game Modding Toolkit Humble Bundle, today we are looking at three of the game engine related add-ons available in the bundle. These include Blender to Unity, Blender to Unreal as well as the Blender to Godot 4 Pipeline add-on. Blender to Unity Blender-to-Unity is […]

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GameFromScratch.com
Leartes Studios Unreal Unity and Godot Mega Flash Sale

There is a new bundle of interest to game developers, the Leartes Studios Unreal | Unity | Godot Mega Flash Sale Humble Bundle. This is a huge collection of 3D assets for Unity, Unreal Engine and for the first time ever directly for the Godot Game Engine as well! Not […]

The post Leartes Studios Unreal Unity and Godot Mega Flash Sale appeared first on GameFromScratch.com.

GameFromScratch.com
Godot Block Coding Plugin

There is a new visual programming language for the Godot game engine implemented in the Godot Block Coding plugin. This plugin adds a “Scratch-like” Lego brick programming system on top of Godot. While early on, it has a lot of potential and could be a good beginners language for many […]

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Godot Powered Action Game Maker Engine

The creators of Pixel Game Maker MV and RPG Maker have announced a new game engine, Action Game Maker and this one is being built on top of the Godot open source game engine. This is ultimately a replacement for Pixel Game Maker MV (or PGMMV) although it will not […]

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I am making a 2D game where I need to check if any "specific" object is colliding with another "specific" object in order to change it's behavior. I know that you can check collisions with Area2D but what if I wanted to change the behavior of the object based on the objects it's colliding with?

Like:

if colliding with A:
    color = yellow
else:
    color = white

I've created a model in MagicaVoxel (A) and I want to use it in Godot. I imported the model into Blender, but then realized that it's using a very high polygon count for such a simple model. I found that using MagicaVoxel's OBJ export yields interesting results in that voxels of the same colour share polygons (B), but when many different coloured voxels are next to each other, it still creates a high polygon count.

Ideally, I'd like to have a model that is the lowest polygon count possible (C) with an accurate texture map to mimic the voxel colours. Is there an existing tool to achieve this? I really like how MagicaVoxel works and I'm not interested in using Blender to model or manually texture the mesh, but maybe there's a plugin for Blender? I'm open to suggestions.

As a side note, it's possible that I could just use the OBJ file as is, but I wonder about performance. Mesh B has 216 polygons, while mesh C uses 140. This is just one asset in a medieval adventure game and I'd like to have a very cluttered world. ;-)

Edit For clarification: MagicaVoxel exports an OBJ file with accurate texture mapping, but isolates different colours of voxels to their own polygons, creating more polygons than are required. Mesh B is the result (I imagine this removes the need for any anisotropic filtering). Mesh C was also exported from MagicaVoxel, but with the colour information removed. Thus, without the desired material information. I just wanted to avoid any confusion with what MagicaVoxel can do on it's own. Maybe there's a solution within MagicaVoxel that I'm not aware of?

Update: I believe Blender can do what I need, but it's going to require a lot more research to get it right. I was able to get a texture map to bake by diffusing colour with some success (some faces got the wrong colour, see the yellow near the bottom of the blade), but I couldn't quite figure out how to do it with vertex colour emissions to see if the result would be better. Then (as you can see in the sword handle) I need to setup up a pixel perfect UV and texture map, prior to baking. I'm kind of leaning away from doing it manually in Blender, to be honest. I may have to do this for a thousand or more models, and every time a model is edited.

I'm going to let this question sit for now in the hope that there's an easier solution. Maybe a script exists to do this? Maybe I should learn how to write my own? In the meantime, I can still proceed with the higher polygon counts in the OBJ exports from MagicaVoxel. The neat thing about the native MagicaVoxel OBJ exports is that the texture map is a simple 1px tall by 256px wide palette PNG file (every colour is a single square pixel) that all meshes can share. Everything can use the same texture file. Maybe that offsets the higher polygon count performance hit? Anyway, I'm taking a break from Blender. ;-)

SuperStarfighter is a fast-paced local party game for up to 4 players. Outmaneuver and shoot your opponents in a 2d top-down arena, and become an intergalactic champion!

Assume there is a Sprite3D with a Y- billboard flag on. This sprite3D has a matching CollisionPolygon3D Collision polygon3D is set up to "look" at the camera with a look_at() function, similar to the Y-billboard.

However, the collision poly and the sprite3D do not match at non-orthogonal angles:

(Angle to the camera is about 45deg)

I understand that Y-billboard flag achieves the "look at the camera" effect with a shader, while look_at() is a spacial matrix transform. Yet, is there a way to align these two?

Gotot 4.2

Sprite3D is very useful for representing 2D objects within the gameworld. However, when billboarded (Y-billboard), 3D Sprites are prone to clipping into the floor/walls/other 3D models they are close to.

There is an easy way to "force" the sprite3D to be drawn in front of the cube by checking "No depth test" in the sprite 3D's flags, but that makes the sprite visible through all walls/floor.

The other method I tried is to manipulation of the sprite3D's and Cube's material transparency settings:

3D Cube's and Floor's material:

        Transparency: Alpha
        Blend Mode: Mix
        Cull Mode: Disabled
        Depth Draw: Always
        No Depth Test: unticked

This solves the "see-through walls" problem and prevents clipping through the cube, but the sprite3D is still visible through the floor.

Is there some other way to prevent this clipping? Maybe to have the sprite's depth (or "render order") depend on its origin?

SuperStarfighter is a fast-paced local party game for up to 4 players. Outmaneuver and shoot your opponents in a 2d top-down arena, and become an intergalactic champion!

GameFromScratch.com
Godot TileMap Replaced with TileMapLayers

In the move from Godot 3.x to Godot 4.x one of the few regressions was support for 2D tiled maps. Since the 4.0 release however, several features are being reintroduced to bring Godot up to parity with the older versions. In the upcoming release of Godot 4.3 (currently in Beta1) […]

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I'm trying to place a button on the bottom right corner of the screen, so I tried to put all the Anchor parameters in the inspector to the value "End" but the position still needs to be specified relative to the top-left corner. If I try changing the margins in the inspector it kind of works but then I have to change all four margins taking into account the size.

I'm trying to program 2D mouse aim, where the arms and the gun in the arms rotates to point at the mouse. But for some reason, the arms and gun rotate and do not follow the mouse position.

The each of the arms and the guns are separate node that are parented to an orbit node that is located on at the shoulder of the arms.

The following code is script that is attached and running on the orbit.

    var mousePos = get_viewport().get_mouse_pos();
    var dir = get_pos();
    var angle = (atan2(dir.x,dir.y))+(2*PI);
    var arm_gun_dir = gravGun_Ref.get_pos()-get_pos();
    var arm_gun_angle = (atan2(arm_gun_dir.x,arm_gun_dir.y))+(2*PI);
    set_rot(angle-(PI/2));

Here is a GIF of the result of this setup:

Here is an image showing where the positions of the upper arm and the gun.

SuperStarfighter is a fast-paced local party game for up to 4 players. Outmaneuver and shoot your opponents in a 2d top-down arena, and become an intergalactic champion!

GameFromScratch.com
Low Poly Game Dev Humble Bundle

There is new Humble Bundle of interest to game developers, the Low Poly Game Dev Bundle is a collection of low polygon game assets from Eldamar Studio and AnimPic Studios. The AnimPic assets are for Unreal Engine and Unity but can easily be exported to other game engines, the Eldamar […]

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It may not matter, but I'm following How to make a Video Game - Godot Beginner Tutorial. I want to implement the dying animation instead of removing CollisionShape2D from the body (parameter passed to Area2D's _on_body_entered signal).

The player:

The player animations:

The code to remove the CollisionShape2D (player falls off the screen before restarting, based on tutorial) that works:

func _on_body_entered(body):
    print("You die")
    Engine.time_scale = 0.5
    body.get_node("CollisionShape2D").queue_free()
    timer.start()

What I've tried to get dying animation to play:

func _on_body_entered(body):
    print("You die")
    var player_anim = body.get_node("AnimatedSprite2D") # tried a single line as well
    Engine.time_scale = 0.5
    player_anim.play("dying" )
    timer.start()

I get no errors, it just resets after the designated amount of time. Is it possible to trigger player dying animation from Area2D script?

I'm trying to create a Godot game that runs in a resizeable window. The larger the window, the more of the game world players should be able to see - i.e. I do not want the game graphics to get scaled up.

The structure of my main scene is as follows:

(A) Node2D
  (B) Camera2D
    (C) Control
  (D) Node2D

(A) is offset by half the viewport width/height as configured in the Project Settings under Display -> Window.

(C) is actually the root of a scene that displays a command bar for controlling the game. It is positioned at the bottom of the viewport.

(D) is the player object.

The camera (B) is set to center on the player object (D) (by means of a RemoteTransform2D).

Dissatisfactory Observation 1

When I run the game, everything looks fine. Once the window is resized (e.g. maximized), the player remains in the center, but I can see a bit more of their surrounding.

However, (C) still has the same position relative to the player object (D). It seems the window gets enlarged to all sides around its former center, rather than e.g. down + right, as I would have intuitively expected.

Now, I can probably reposition (C) programmatically when the window size changes, but I wonder whether I can somehow align (C) automatically to stick to the bottom of the viewport.

I have tried setting anchors_preset for (C) to "Bottom Wide", but that somehow makes (C)'s top left corner snap to the center of the viewport.

Dissatisfactory Observation 2

As some kind of an (almost) screen-filling pop-up, I instantiate a MarginContainer (with the same margin width on all sides) with some controls inside, set its anchors_preset to "Full Rect", and attach it directly to GetTree().Root (i.e. the window itself). This works well in the window's original size.

Once I maximize the window, however, the margin on the right and bottom is gone, and the margin on the left and top have grown considerably, as if the MarginPanel were not anchored to the window at all and had been shifted right and down a bit.

How do I properly anchor my UI controls to a resizeable window?

I have a simple save game/load game system that packs the entire world scene to the disk, then loads it via ResourceLoader.load():

var loadedGame = ResourceLoader.load(SAVEGAME_PATH,"",ResourceLoader.CACHE_MODE_IGNORE).instantiate()

It works fine, and the game state is somewhat successfully saved/restored. The problem is that upon loading the game (i.e. instantiating the loaded scene) all _ready events on ALL the nodes inside it are fired off again and all variables that were declared pre-ready are re-declared (i.e. revert to the original values).

Is there a way to suppress these _ready events and re-declarations in this specific use case?

SuperStarfighter is a fast-paced local party game for up to 4 players. Outmaneuver and shoot your opponents in a 2d top-down arena, and become an intergalactic champion!

I've been learning Godot and game dev as a whole since the start of this year and I've sunk dozens of hours into practicing making games in it, lately I've set out to make a very small sort of "test Metroidvania", I'm following a tutorial series on YouTube , and while the series isn't complete, it has everything I need, I've already implemented a lot of the stuff in the series, and I already have past experience with coding some basic features that aren't in the series.

Here is the scoping for my game, ✅ means I already implemented the feature, 🕛️ means I've yet to code it and implement it.

My Scoping for this game:

• Simple auto tile map with nice details ✅

• Basic Player movement ✅

• Player can Jump ✅

• Player can attack with a sword and even use it while jumping and moving ✅

• Player can double jump and even triple jump ✅

• 1 enemy type that can fly and chases the Player's position ✅

• Player can collect power-up that allows them to double jump ✅

• Player will be able to hit the enemy and kill it 🕛️

• Designing the level itself (it's gonna be pretty small lol) 🕛️

• Simple platforming challenges 🕛️

• Player will have to backtrack to the start once they obtain the double jump to reach the end area 🕛️

• a boss at the end that is just the flying enemy but bigger and has more health 🕛️

Features that I wanna implement in future versions:

• Player health and lose state 🕛️

• Spikes that damage the Player 🕛️

• A walking enemy 🕛️

• The same boss again but with enemies around it lol 🕛️

• More platforming challenges 🕛️

• Walljump 🕛️

• Keys and locked doors 🕛️

• Dash 🕛️

I've been told to start small and always prototype, "the key is to always have a finished game at the start", I'm also trying to relatively stay in my current comfort zone with coding the features, I really don't wanna bite off more than I can chew and end up cancelling the game because I can't code essential features of it

So yeah that's my development, I'm confident I'm gonna be able to finish this game with my current skills, I just wanted to share my development and see if I can get any feedback, criticism is appreciated!

GameFromScratch.com
Instant Realistic Lighting in Godot

Out of the box the lighting system in Godot doesn’t give amazing results. In fact, out the box the lighting system in the Godot game engine ONLY works in the editor, which can be more than a bit confusing for beginners. Thankfully we have an in-depth lighting tutorial that will […]

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My First Person Controller (CharacterBody3D) currently has no momentum at all. By the way, I measure my movement speed in the debug panel (hotkey ~) with velocity.length() and when I get pushed by one of the platforms (see this video), my speed stays at 0 while I'm being pushed, which isn't how it supposed to be. What would be the best way to add a momentum/inertia feature and measure my current speed at all times?

Source: https://github.com/CryptoMares/FPS-Player-Controller

Thanks!

SuperStarfighter is a fast-paced local party game for up to 4 players. Outmaneuver and shoot your opponents in a 2d top-down arena, and become an intergalactic champion!

SuperStarfighter is a fast-paced local party game for up to 4 players. Outmaneuver and shoot your opponents in a 2d top-down arena, and become an intergalactic champion!

If I have a tilemap that is 4x8, positioned at 0,0 in the editor as follows:

What code would I use such that it ends up "centered" when my game runs?

I'm hoping for an end result that would look like this:

As you can see, the tilemap has been moved left 24 pixels and up 24 pixels. This example is manually done, but I'd like to be able to do it using the Godot APIs so that tilemaps of different dimensions can be centered.

GameFromScratch.com
Make Godot Engine More Organized with TODO Manager

A follow up on our earlier discussion on how to improve the Godot game engine (by making it prettier), today we look at another handy plugin that makes Godot more organized. If you are used to littering your code with TODO or FIXME type comments, this handy add-on helps you […]

The post Make Godot Engine More Organized with TODO Manager appeared first on GameFromScratch.com.

SuperStarfighter is a fast-paced local party game for up to 4 players. Outmaneuver and shoot your opponents in a 2d top-down arena, and become an intergalactic champion!

SuperStarfighter is a fast-paced local party game for up to 4 players. Outmaneuver and shoot your opponents in a 2d top-down arena, and become an intergalactic champion!

SuperStarfighter is a fast-paced local party game for up to 4 players. Outmaneuver and shoot your opponents in a 2d top-down arena, and become an intergalactic champion!

SuperStarfighter is a fast-paced local party game for up to 4 players. Outmaneuver and shoot your opponents in a 2d top-down arena, and become an intergalactic champion!