Mod 2B.

main.py

# Author: Rodion Efremov
# Version: VIII
# Date: Jul 20, 2023 13:55.
# Info: Fixing stuff.


import os
import pygame
import time
import random
import pygame.freetype
import math


etc_frequency = 60.0
etc_frame_duration = 1.0 / etc_frequency


class SinusoidalLFO:
    def __init__(self, maximum_angle_amplitude, frequency):
        self.maximum_angle_amplitude = maximum_angle_amplitude
        self.frequency = frequency
        self.angle = 0.0
        self.time = 0.0

    def get_angle(self):
        return self.angle
    
    def update(self):
        wave_length = 1.0 / self.frequency
        
        if self.time > wave_length:
            self.time -= wave_length

        self.angle = self.maximum_angle_amplitude * math.sin(2.0 * math.pi * self.frequency * self.time)
        self.time += etc_frame_duration


size = 1000
gs = 0
charnum = 1
x = 640
y = 360
yo = 255
speed = 1
lfo = SinusoidalLFO(90.0, 1.0)


red = (190, 0, 0)
brown = (0, 40, 40)
blue = (100, 100, 255)


def is_between(char_number, min, max):
    return min <= char_number <= max


def get_color_of_char(char_number):
    if is_between(char_number, 33, 64):
        return red
    
    if is_between(char_number, 65, 90):
        return brown
    
    if is_between(char_number, 91, 122):
        return blue
    
    return None


def setup(screen, etc):
    pygame.freetype.init()


def draw(screen, etc):
    global size, gs, charnum, x, y, charList, unistr, coloryo, yo, speed
    char_index = None

    if etc.audio_trig or etc.midi_note_new :
        gs = 1
        size = 800 * (etc.knob2 + .1)
        char_index = random.randint(65, 120)
        unistr = unichr(char_index)
        x = random.randrange(0,screen.get_width())
        y = random.randrange(0,screen.get_height())
        color = etc.color_picker()

        speed=int(etc.knob1*100+1)
        yo = speed

    if gs == 1 and size > 0 :
        font = pygame.freetype.Font(etc.mode_root + "/font.ttf", size)
        
        color = etc.color_picker()
        test_color = get_color_of_char(char_index)

        if test_color:
            color = test_color

        coloryo = (int(color[0]*speed/yo),int(color[1]*speed/yo),color[2]*speed/yo)
        if coloryo == (1,1,1) : coloryo = (0,0,0)
    
        (text, textpos) = font.render(unistr, coloryo) 
        textpos.centerx = x
        textpos.centery = y
    
        angle = lfo.get_angle()
        my_surface = pygame.transform.rotate(text, (etc.knob3 - 0.5) * (-180.0) + angle)
        
        screen.blit(my_surface, textpos)
        size = size - 5 * 50*(etc.knob3 + .02)
        yo = yo + 1
        if yo > 255 : yo = 255
        if size < 1 : size = 1
       
    lfo.update()