/Drum Machine.py
Created Nov 7, 2012
Drum Machine
| #TODO: Adjust size to screen size (iPhone) | |
| #TODO: Clear (and random, play/pause?) buttons | |
| from scene import * | |
| from sound import play_effect, set_volume, load_effect | |
| from colorsys import hsv_to_rgb | |
| import pickle | |
| class DrumMachine (Scene): | |
| def setup(self): | |
| self.beat = 0.0 | |
| set_volume(1.0) | |
| self.sounds = ['Drums_01', 'Drums_02', 'Drums_03', 'Drums_06', | |
| 'Drums_10', 'Drums_11', 'Drums_11', 'Drums_15'] | |
| 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(16)] for row in xrange(8)] | |
| 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(16): | |
| beat_row = int(self.beat) == y | |
| for x in xrange(8): | |
| 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 * 96, y * 61, 95, 60) | |
| def touch_began(self, touch): | |
| x, y = touch.location.as_tuple() | |
| x = int(x / 96) | |
| y = int(y / 61) | |
| if y < 16: | |
| self.grid[x][y] = not self.grid[x][y] | |
| def stop(self): | |
| with open('Drums.data', 'w') as f: | |
| pickle.dump(self.grid, f) | |
| run(DrumMachine(), PORTRAIT) |
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