drum_R01.py

drum_R01.py

# coding: utf-8

#TODO: Adjust size to screen size (iPhone)
#DONE: Adjusted to rect(x * 47, y * 42, 46, 41)
#				- decr y * val to accomodate new buttons
#DONE: Clear : added 16th row: column 1 clears data
#DOME: Random: row 16 column 2 uses randint() to generate random data
#TODO: have a random for just column 16 pushed (exc clear button)
#TODO: play/pause buttons

from scene import *
from sound import play_effect, set_volume, load_effect
from colorsys import hsv_to_rgb
import pickle
import ui
import random

class DrumMachine (Scene):
		
	def setup(self):
		self.beat = 0.0
		set_volume(5.0)

		self.sounds = ['drums:Drums_01', 'drums:Drums_02', 'drums:Drums_03',  'drums:Drums_04',
		               'drums:Drums_10', 'drums:Drums_11', 'drums:Drums_16', 'drums:Drums_14']
		for effect in self.sounds:
			load_effect(effect)

		try:
			with open('Drums.data', 'r') as f:
				self.grid = pickle.load(f)
		except EOFError:
			self.grid = [[False for col in xrange(17)] for row in xrange(8)] #17 for extra row, file needs to blank, gone, or corrupted
			
	def draw(self):
		background(0,0,0)
		last_beat = int(self.beat)
		self.beat += 1.0/7.5
		self.beat %= 16
		play = int(self.beat) != last_beat 
		
		for y in xrange(17): # rows 17 here shows 17th row
			beat_row = int(self.beat) == y
			for x in xrange(8): #columns
				if self.grid[x][y]:
					h = x / 8.0
					r, g, b = hsv_to_rgb(h, 1, 1)
					if play and int(self.beat) == y:
						play_effect(self.sounds[x])
					if beat_row:
						h = x / 8.0
						r, g, b = hsv_to_rgb(h, 1, 1)
						fill(r, g, b)
					else:
						r, g, b = hsv_to_rgb(h, 1, 0.5)
						fill(r, g, b)
				elif beat_row:
					fill(1, 1, 1)
				else:
					fill(0.50, 0.50, 0.50)
				#rect(x * 47, y * 42, 46, 41)
				rect(x * 47, y * 38 , 46, 37)
	def touch_began(self, touch):
		#(x,y)pos of touch
		x, y = touch.location.as_tuple()
		#identify grid in ({0,7}{0,16})
		x = int(x / 47)
		y = int(y / 38)#follows rect above
		#update grid colour for grid touched
		if y < 17: #17 here allows activate 17 row
			self.grid[x][y] = not self.grid[x][y]
		if y==16: #Check command line row
			if x==0: #clear data locally
				self.grid = [[False for col in xrange(17)] for row in xrange(8)]
			else: #randomize column x
				for col in xrange(17):
					self.grid[x][col]=random.choice([0, 0 ,1,0]) # Random choice = less full
					#self.grid[x][col]=random.randint(0,1)
					
	def stop(self):
		#Update drum.data with current data
		with open('Drums.data', 'w') as f:
			pickle.dump(self.grid, f)
	
run(DrumMachine(), PORTRAIT)