Godot

This may be interesting for people to read. Just a warning, all AGPL, so using this code snippets will make your source open. Hope you like the reading.

Hello, everyone! On this channel, I’ve been creating Godot shaders of all kinds, but there’s one type I’ve ignored until now - so it’s time to fix that. It’s the shader_type particles, and as the name suggests, we’ll apply it to a GPUParticles3D node. So let’s take a look at how we can create a simulation of insects flying around a light in the fog.

Hello, everyone! The shader we’re going to create in this video definitely isn’t one of the most useful effects for game development. It’s more of a detour from more complex algorithms and includes several interesting techniques that might come in handy. So let’s take a look at how to program a four-dimensional cube.

Just a quick demo of an ant BOID system I threw together. Let me know what you think. Did I capture the essence of ants?

I am working on the input and it feels like its getting out of hand. I wanted to check in with people and see how people structure their input handling.

Currently I have 1 function _unhandled_unput(event) and inside there I have a ton of elif statements trying to handle every possible situation and event. Its manageable at the moment but I only have like 4 events so its going to get very out of hand if I continue.

I need to have 100s of these events based on whats selected and what mouse/keyboard buttons are being pressed and I need some way to resuse the actions.

func _unhandled_input(event):
	if event is InputEventMouseButton and event.pressed:
		if event.button_index == MOUSE_BUTTON_RIGHT:
			clear_selection()
			gui.queue_redraw()
			get_viewport().set_input_as_handled()
			return
	if selected_item == "colonist": #broken
		if event is InputEventKey:
			if event.OS.get_keycode_string() == "r":
				for colonist in selected_group:
					colonist.set_state("DRAFT")
					get_viewport().set_input_as_handled()
					gui.queue_redraw()
	#nothing selected dragbox to select things and single click to select things - does not work at the moment
	elif selected_type == "" or selected_type == "basic":
		if is_dragging and event is InputEventMouseMotion:
				drag_end = camera.get_global_mouse_position()
				cam_drag_end= get_viewport().get_mouse_position()
				get_selection(drag_start, drag_end)
				gui.queue_redraw()
				get_viewport().set_input_as_handled()
				return
		elif event is InputEventMouseButton and not event.pressed:
			is_dragging = false
			gui.queue_redraw()
			drag_start = null
			drag_end = null
			get_viewport().set_input_as_handled()
			return
		elif event is InputEventMouseButton and event.pressed:
			if event.button_index == MOUSE_BUTTON_LEFT:
				selected_type = "basic"
				is_dragging = true
				drag_start = camera.get_global_mouse_position()
				cam_drag_start = get_viewport().get_mouse_position()
				gui.queue_redraw()
				get_viewport().set_input_as_handled()
				return
	#command flow for dragging a selection box
	elif selected_type == "command":
		if selected_item == "structure_dict_growing":
			if is_dragging and event is InputEventMouseMotion:
				var grid_pos = tilemap.local_to_map(camera.get_global_mouse_position())
				var local_pos = tilemap.map_to_local(grid_pos)
				drag_end = local_pos + Vector2(32, 32)
				cam_drag_end = get_viewport().get_mouse_position()
				gui.queue_redraw()
				get_viewport().set_input_as_handled()
				return
			elif event is InputEventMouseButton and not event.pressed:
				if event.button_index == MOUSE_BUTTON_LEFT:
					is_dragging = false
					gui.queue_redraw()
					get_viewport().set_input_as_handled()
					MessageBus.rpc_id(1, "request_zone_growing", selected_item ,drag_start, drag_end, multiplayer.get_unique_id())
					drag_start = null
					drag_end = null
					return
			elif event is InputEventMouseButton and event.pressed:
				if event.button_index == MOUSE_BUTTON_LEFT:
					is_dragging = true
					#to snap to grid
					var grid_pos = tilemap.local_to_map(camera.get_global_mouse_position())
					var local_pos = tilemap.map_to_local(grid_pos)
					drag_start = local_pos - Vector2(32, 32)
					cam_drag_start = get_viewport().get_mouse_position() #this is broken cbf fixing maybe one day after selection is working 
					gui.queue_redraw()
					get_viewport().set_input_as_handled()
					return
	elif selected_type == "floor":
		if event is InputEventMouseButton and event.pressed:
			if event.button_index == MOUSE_BUTTON_LEFT:
				var global_mouse_pos = camera.get_global_mouse_position()
				var grid_pos = tilemap.local_to_map(global_mouse_pos)
				if selected_item == "":
					return
				MessageBus.rpc_id(1, "request_build_floor", selected_item, grid_pos, multiplayer.get_unique_id())
				get_viewport().set_input_as_handled()
				return
	elif selected_type == "building":
		if event is InputEventMouseButton and event.pressed:
			if event.button_index == MOUSE_BUTTON_LEFT:
				var global_mouse_pos = camera.get_global_mouse_position()
				var grid_pos = tilemap.local_to_map(global_mouse_pos)
				if selected_item == "":
					return
				MessageBus.rpc_id(1, "request_build_structure", selected_item, grid_pos, multiplayer.get_unique_id())
				get_viewport().set_input_as_handled()
				return

Hi everyone! The effect we’ll be creating in this video is something I had been planning for a long time, and now I’ve finally implemented it. As the title suggests, it will be a simulation of raindrops falling onto a water surface, including the typical expanding ripple circles.

Hopefully the title is self-explanatory but some more details:

• game is in isometric perspective with the camera locked to the player but from a significant distance away, creating high likelihood of obstructions by the level and decorations occuring
• I want the player to see their character's vision and not have these obstructions block the player's view.

One way to achieve this might be to use raycasts from the character to hide objects (like walls or buildings) if they collide with an object on the opposite side to the camera. A slight problem there is if buildings have interiors then the rays wouldn't necessarily hit all relevant objects. Sometimes both the interior and exterior of the building would need to visible.

I've seen a few videos on stencil buffers but my understanding is that this might not apply, but I will admit to not understanding them well. Any help appreciated for this newbie to game dev.

had to change how parent component is checked

still not sure what caused this

discord: https://discord.gg/WFwUXe6Em8
stoat: https://stt.gg/6T7e7yb7

Hi everyone! Let’s create a shader that looks like a simple radar, which can be useful for many types of games. It will be entirely generated using lines and other primitive shapes, and we’ll add some animation to it as well.

Just a demo of 3 test cases within the prototype. A more streamlined model is possible.

Edit: ah i was reading an old doc because the reddit comment I saw was 6 years old. The property is get_property_list()

I have a script that is a global it contains a bunch of dictionaries that describe items. I need a way to get a list of the different types.

Searching for solutions I found https://docs.godotengine.org/en/3.2/classes/class_script.html#class-script-method-get-script-property-list

but I cant seem to get it working. Godot says "Function "get_script_property_list()" not found in base self"

Example of the what im trying to get a list of

var tile_dict_grass = {
	"name": "grass",
	"source": 1,
	"atlas": Vector2i(1,0),
	"move_speed": 0.80,
	"path_cost": 2,
	"fertility": 1,
	"cleanliness": 1.5,
	"flammability": 0.60,
	"build_categories": "all",
	"solid": false
}
var tile_dict_rich_soil = {
	"name": "rich soil",
	"source": 1,
	"atlas": Vector2i(1,0),
	"move_speed": 0.80,
	"path_cost": 2,
	"fertility": 1.4,
	"cleanliness": -1.0,
	"flammability": 0.0,
	"build_categories": "all",
	"solid": false
}

How im trying to get it.

func get_tile_dict():
	var property_list = self.get_script_property_list()
	var tile_list = []
	for attr in dir(self):
		if attr.startswith('tile_dict'):
			value = getattr(self, attr)
			tile_list.append(value)
	return tile_list

Godot JRPG is a framework for building 2D JRPGs (Japanese Role Playing Games) in Godot game engine, inspired by RPG Maker.