How do i get the array counterpart of a value in a different array?

SpicoTheMirrorSpirit

Im trying to make some sort of terrain randomizer, and i want it to choose what the next tile is going to be by looking at what it currently is, and finding the array that contains what it can pick, then picking what the next tile is going to be. For example: Our current plate is "Plains", it looks at its array to figure out what it can transform into, being "Swamp", "Desert" and "Plains" again, then it picks a random number (which i did figure out how to do myself) in this example lets say it picked the desert, and by the time it wants to create a new plate, it looks at the contents of the desert array and so on i have made the randomization part and everything works just as well if you summon everything all at once without biome specific tables, but i cant figure out a way to put these biome specific tables in place. How can i do this? The code i currently have is as follows: func summon_loop():

var starter = ["PlateGreen"] #"PlateLime", "PlateYellow", "PlateOrange", "PlateMaroon", "PlateCyan", "PlateGray", "PlateWhite", "PlateDarkerBlue", "PlateSpico"]
var PlateGreen = ["PlateYellow"]
	# i wiped many things here because it was complicating things, this needs a rewrite
	# Update rewrite in progress
	var plate_instance = plate.instance()
	if plates_left == 0:
		plate_type = rng.randi_range(0, 0) # change to 4 when debugging is done it just rolls to the only one for now
		plates_left = rng.randi_range(2, 4)
	# Add child, give type, increase step, subtract left plates. Simple. Update: this is old text update when code is done
	add_child(plate_instance)
	plate_instance.global_position.x += spawn_units * step
	plate_instance.tile_set = load("res://world/plates/" + str(current[plate_type]) + ".tres")
	current = current[plate_type]
	print(str(current))
	step += 1
	plates_left -= 1

in my example the only thing it should be able to put out is "PlateYellow" but all it does is input P's, which i figured is the first letter of "PlateGreen" so this one doesnt really work out. It might be asking for alot but how can i achieve this?

xyz

Better to use dictionary and a simple function that returns next based on current:

# dictionary of arrays of all possible successors for each value
var successors = {
	"Red" : [ "Green", "Blue"],
	"Green" : [ "Red", "Blue" ],
	"Blue" : [ "Red", "Green"]
}
func get_next(current):
	var next_possible_array = successors[current];
	var next_index = rng.randi_range(0, next_possible_array.size()-1)
	return next_possible_array[next_index]

#test
var current = "Blue"
var next
for i in 10:
	next = get_next(current)
	print (current, "->", next)
	current = next

Note that this is bare bones version to show the approach. You should add some error checks in case the requested key is not in the dictionary.

SpicoTheMirrorSpirit

@xyz said: Better to use dictionary and a simple function that returns next based on current:
# dictionary of arrays of all possible successors for each value
var successors = {
	"Red" : [ "Green", "Blue"],
	"Green" : [ "Red", "Blue" ],
	"Blue" : [ "Red", "Green"]
}
func get_next(current):
	var next_possible_array = successors[current];
	var next_index = rng.randi_range(0, next_possible_array.size()-1)
	return next_possible_array[next_index]
#test
var current = "Blue"
var next
for i in 10:
	next = get_next(current)
	print (current, "->", next)
	current = next
Note that this is bare bones version to show the approach. You should add some error checks in case the requested key is not in the dictionary.

after a load of tempering and some help from a friend of mine i got it to work! Now if you excuse me ill try to reorganize the whole code so its readable before i head up to bed. Thanks alot!