# -*- coding: utf-8 -*- """ Écran de jeu MinWii : bandes arc-en-ciel représentant un clavier. $Id$ $URL$ """ import pygame from cursors import WarpingCursor from column import Column import events from eventutils import event_handler, EventDispatcher, EventHandlerMixin import types from musicxml import Tone from config import FRAMERATE from config import FIRST_HUE from config import MIDI_VELOCITY_RANGE from config import MIDI_PAN_RANGE from config import MIDI_VELOCITY_WRONG_NOTE_ATTN from globals import BACKGROUND_LAYER from globals import CURSOR_LAYER from globals import PLAYING_MODES_DICT class PlayingScreenBase(pygame.sprite.LayeredDirty, EventHandlerMixin) : def __init__(self, synth, distinctNotes=[]) : """ distinctNotes : notes disctinctes présentes dans la chanson triées du plus grave au plus aigu. """ super(PlayingScreenBase, self).__init__() self.synth = synth self.distinctNotes = distinctNotes self.keyboardLength = 0 self.keyboardRects = [] self.cursor = None self._initRects() self.columns = {} self._initColumns() self._running = False self.draw(pygame.display.get_surface()) self._initCursor() def _initRects(self) : """ création des espaces réservés pour afficher les colonnes. """ self.keyboardLength = len(self.distinctNotes) screen = pygame.display.get_surface() self.dispWidth = dispWidth = screen.get_width() self.dispHeight = dispHeight = screen.get_height() columnWidth = int(round(float(dispWidth) / self.keyboardLength)) rects = [] for i in range(self.keyboardLength) : upperLeftCorner = (i*columnWidth, 0) rect = pygame.Rect(upperLeftCorner, (columnWidth, dispHeight)) rects.append(rect) self.keyboardRects = rects def _initColumns(self) : hueStep = FIRST_HUE / (self.keyboardLength - 1) for i, rect in enumerate(self.keyboardRects) : hue = FIRST_HUE - hueStep * i tone = self.distinctNotes[i] c = Column(self, i, hue, rect, tone) self.add(c, layer=BACKGROUND_LAYER) self.columns[tone.midi] = c def _initCursor(self) : self.cursor = WarpingCursor(blinkMode=True) self.add(self.cursor, layer=CURSOR_LAYER) def run(self): self._running = True clock = pygame.time.Clock() pygame.display.flip() pygame.mouse.set_visible(False) while self._running : EventDispatcher.dispatchEvents() dirty = self.draw(pygame.display.get_surface()) pygame.display.update(dirty) clock.tick(FRAMERATE) def stop(self) : self._running = False self.synth.system_reset() pygame.mouse.set_visible(True) self.cursor._stopBlink() @event_handler(pygame.KEYDOWN) def handleKeyDown(self, event) : if event.key == pygame.K_q or event.unicode == u'q': self.stop() @event_handler(pygame.MOUSEBUTTONDOWN) def onMouseDown(self, event) : # TODO à cleaner : on vire le dernier élément # parce qu'il s'agit du curseur for col in reversed(self.sprites()[:-1]) : if col.rect.collidepoint(*event.pos): self.raiseColDown(col, event) break @event_handler(pygame.MOUSEBUTTONUP) def onMouseUp(self, event) : for col in reversed(self.sprites()[:-1]) : if col.rect.collidepoint(*event.pos) : self.raiseColUp(col, event) break @event_handler(pygame.MOUSEMOTION) def onMouseMove(self, event) : for col in reversed(self.sprites()[:-1]) : if col.rect.collidepoint(*event.pos) : self.raiseColOver(col, event) break def raiseColDown(self, col, mouseEvent) : evt = pygame.event.Event(events.COLDOWN, column=col, pos=mouseEvent.pos) pygame.event.post(evt) def raiseColUp(self, col, mouseEvent) : evt = pygame.event.Event(events.COLUP, column=col, pos=mouseEvent.pos) pygame.event.post(evt) def raiseColOver(self, col, mouseEvent) : evt = pygame.event.Event(events.COLOVER, column=col, pos=mouseEvent.pos, mouseEvent=mouseEvent) pygame.event.post(evt) def getVelocity(self, pos) : vel = (float(self.dispWidth) - pos[1]) / self.dispWidth vel = int(vel * (MIDI_VELOCITY_RANGE[1] - MIDI_VELOCITY_RANGE[0])) + MIDI_VELOCITY_RANGE[0] return vel def getPan(self, index) : pan = float(index) / (self.keyboardLength -1) pan = int(pan * (MIDI_PAN_RANGE[1] - MIDI_PAN_RANGE[0])) + MIDI_PAN_RANGE[0] return pan def playnote(self, col, pos, vel=None) : pan = self.getPan(col.index) self.synth.cc(0, 10, pan) vel = vel or self.getVelocity(pos) self.synth.noteon(0, col.tone.midi, vel) class PlayingScreen(PlayingScreenBase) : "fenêtre de jeu pour improvisation" scale = [55, 57, 59, 60, 62, 64, 65, 67, 69, 71, 72] def __init__(self, synth) : distinctNotes = [] for midi in self.scale : tone = Tone(midi) distinctNotes.append(tone) super(PlayingScreen, self).__init__(synth, distinctNotes) @event_handler(events.NOTEON) def noteon(self, evt) : tone = evt.tone self.synth.noteon(0, tone.midi, 96) @event_handler(events.NOTEOFF) def noteoff(self, evt) : tone = evt.tone self.synth.noteoff(0, tone.midi) class SongPlayingScreen(PlayingScreenBase) : def __init__(self, synth, song, mode=PLAYING_MODES_DICT['NORMAL']) : super(SongPlayingScreen, self).__init__(synth, song.distinctNotes) self.song = song self.quarterNoteDuration = song.quarterNoteDuration self.currentColumn = None self.noteIterator = self.song.iterNotes() self.displayNext() self._plugListeners(mode) def _plugListeners(self, mode) : "initialisation des gestionnaires d'événements en fonction du mode" if mode == PLAYING_MODES_DICT['BEGINNER'] : EventDispatcher.addEventListener(events.COLOVER, self.handleBeginnerColumnOver) elif mode == PLAYING_MODES_DICT['EASY'] : EventDispatcher.addEventListener(events.COLDOWN, self.handleEasyColumnDown) EventDispatcher.addEventListener(events.COLOVER, self.handleEasyColumnOver) elif mode == PLAYING_MODES_DICT['NORMAL'] : EventDispatcher.addEventListener(events.COLOVER, self.handleNormalColumnOver) EventDispatcher.addEventListener(events.COLDOWN, self.handleColumnDown) EventDispatcher.addEventListener(events.COLUP, self.handleColumnUp) elif mode == PLAYING_MODES_DICT['ADVANCED'] : EventDispatcher.addEventListener(events.COLDOWN, self.handleColumnDown) EventDispatcher.addEventListener(events.COLUP, self.handleColumnUp) elif mode == PLAYING_MODES_DICT['EXPERT'] : EventDispatcher.addEventListener(events.COLDOWN, self.handleExpertColumnDown) EventDispatcher.addEventListener(events.COLUP, self.handleExpertColumnUp) # --- HID listeners --- def handleBeginnerColumnOver(self, event) : col = event.column if col.state and not self.currentNotePlayed : self.playnote(col, event.pos) SongPlayingScreen.setNoteTimeout( int(self.currentNote.duration * \ self.quarterNoteDuration) ) self.currentNotePlayed = True def handleEasyColumnOver(self, event) : col = event.column if col.state and \ any(event.mouseEvent.buttons) and \ not self.currentNotePlayed : self.playnote(col, event.pos) SongPlayingScreen.setNoteTimeout( int(self.currentNote.duration * \ self.quarterNoteDuration) ) self.currentNotePlayed = True def handleNormalColumnOver(self, event) : col = event.column if col.state and \ any(event.mouseEvent.buttons) and \ not self.currentNotePlayed : self.playnote(col, event.pos) self.currentNotePlayed = True def handleColumnDown(self, event) : col = event.column if col.state: self.playnote(col, event.pos) self.currentNotePlayed = True def handleEasyColumnDown(self, event) : col = event.column if col.state and \ not self.currentNotePlayed : self.playnote(col, event.pos) SongPlayingScreen.setNoteTimeout( int(self.currentNote.duration * \ self.quarterNoteDuration) ) self.currentNotePlayed = True def handleExpertColumnDown(self, event) : col = event.column if col.state : self.playnote(col, event.pos) self.currentNotePlayed = True else : vel = self.getVelocity(event.pos) * MIDI_VELOCITY_WRONG_NOTE_ATTN vel = int(vel) self.playnote(col, event.pos, vel=vel) self.alternateColumn = col self.currentNotePlayed = False def handleColumnUp(self, event) : if self.currentNotePlayed : self.synth.noteoff(0, self.currentColumn.tone.midi) self.displayNext() def handleExpertColumnUp(self, event) : if self.currentNotePlayed : self.synth.noteoff(0, self.currentColumn.tone.midi) self.displayNext() else : self.synth.noteoff(0, self.alternateColumn.tone.midi) # --- End HID listeners --- def displayNext(self, event=None) : if self.currentColumn: self.currentColumn.update(False) note, verseIndex = self.noteIterator.next() syllabus = note.lyrics[verseIndex].syllabus() column = self.columns[note.midi] column.update(True, syllabus) self.currentColumn = column self.currentNote = note self.currentNotePlayed = False @event_handler(events.NOTEEND) def clearTimeOutAndDisplayNext(self, evt) : pygame.time.set_timer(evt.type, 0) self.synth.noteoff(0, self.currentNote.midi) self.displayNext() @staticmethod def setNoteTimeout(delay) : pygame.time.set_timer(events.NOTEEND, delay) def stop(self) : pygame.time.set_timer(events.NOTEEND, 0) super(SongPlayingScreen, self).stop()