--- /dev/null
+# -*- 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()
+
+
\ No newline at end of file
projects / minwii.git / blobdiff