Introduction

Nice to meet you. I'm sakura, who recently started programming and wants to make something.

I'm currently learning Python, but I'm still in the early stages and I haven't seen the area of "completely understood."

Meanwhile, if you have made or studied something, I would like to leave it in the article.

environment

This program was implemented using Pythonista3, which provides the Python development environment for the iPad as an app.

Pseudo pachislot implemented as a beginner

Implemented the basics of a simple pachislot program. There is still room for improvement, but I will introduce it for the time being.

Mechanism of pseudo pachislot

Do you know pachislot? The same is true for those with clown patterns and grape patterns, but here I made it assuming that if the ** 3 numbers with built-in pachinko stop getting doublet, it will be a big hit **. (The one like the image) Although it is this mechanism, I do not know what the actual pachinko is like, but in this program, the big hit lottery will be done by the following method.

(1) Prepare all three-digit numbers consisting of numbers from 1 to 7. (2) Randomly take out one number from these 343 numbers. ③ If you take out doublets, you will get a big hit: confetti_ball:

Roughly speaking, it looks like this. Depending on the model, it may be from 1 to 8, but I made it assuming my favorite Symphogear (laugh).

Pseudo pachislot code

The code has the following structure.

`pachisl.py`



import numpy as np

#Generate 343 dice with 3 digit numbers
dice = list()
for x in range(1,8):
	for y in range(1,8):
		for z in range(1,8):
			dice.append(100*x+10*y+z)

#Adjusting the probability of getting doublet
prob = list()
for i in range(343):
	if dice[i] == 111:
		prob.append(0.00045)
	elif dice[i] == 222:
		prob.append(0.00045)
	elif dice[i] == 333:
		prob.append(0.00045)
	elif dice[i] == 444:
		prob.append(0.00045)
	elif dice[i] == 555:
		prob.append(0.00045)
	elif dice[i] == 666:
		prob.append(0.00045)
	elif dice[i] == 777:
		prob.append(0.00045)
	else:
		prob.append(0.99685/336)

#Extract one from 343 numbers with adjusted probability
samples = np.random.choice(a=dice,size=1,p=prob)
print(samples)

We use Numpy's np.random.choice function to create "Ikasamasai" that adjusts the probability of a roll. There is nothing applied.

You can adjust the probability in any way by changing the value. In this code, the probability of getting doublet is adjusted to 1/315. It feels like 1/319 of the actual pachinko machine.

When executed, it returns one 3-digit number, and if getting doublet, it is a big hit. There are no balls.

Summary and outlook

This time, we implemented the simplest form of pachislot. In actual pachislot, the odd-numbered tempai and even-numbered tempai have different probabilities, and 7-ten is quite rare.

Therefore, there is still room for improvement in this program. Specifically, I think it would be interesting to be able to implement a GUI, add sounds, make finer probability adjustments, and distinguish between normal and probabilistic changes.

I tried to implement a pseudo pachislot in Python