Merge pull request adafruit#1676 from PaintYourDragon/main

Add Macropad_Dragon_Drop game

Author: ladyada

Macropad_Dragon_Drop/code.py

@@ -0,0 +1,271 @@
+"""
+Dragon Drop: a simple game for Adafruit MACROPAD. Uses OLED display in
+portrait (vertical) orientation. Tap one of four keys across a row to
+catch falling eggs before they hit the ground. Avoid fireballs.
+"""
+
+# pylint: disable=import-error, unused-import
+import gc
+import random
+import time
+import displayio
+import adafruit_imageload
+from adafruit_macropad import MacroPad
+from adafruit_bitmap_font import bitmap_font
+from adafruit_display_text import label
+from adafruit_progressbar.progressbar import HorizontalProgressBar
+import board      # These three can be removed
+import audiocore  # if/when MacroPad library
+import audiopwmio # adds background audio
+
+
+# CONFIGURABLES ------------------------
+
+MAX_EGGS = 7          # Max count of all projectiles; some are fireballs
+PATH = '/dragondrop/' # Location of graphics, fonts, WAVs, etc.
+
+
+# UTILITY FUNCTIONS AND CLASSES --------
+
+def background_sound(filename):
+    """ Start a WAV file playing in the background (non-blocking). This
+        func can be removed if/when MacroPad lib gets background audio. """
+    # pylint: disable=protected-access
+    MACROPAD._speaker_enable.value = True
+    AUDIO.play(audiocore.WaveFile(open(PATH + filename, 'rb')))
+
+def show_screen(group):
+    """ Activate a given displayio group, pause until keypress. """
+    MACROPAD.display.show(group)
+    MACROPAD.display.refresh()
+    # Purge any queued up key events...
+    while MACROPAD.keys.events.get():
+        pass
+    while True: # ...then wait for first new key press event
+        event = MACROPAD.keys.events.get()
+        if event and event.pressed:
+            return
+
+# pylint: disable=too-few-public-methods
+class Sprite:
+    """ Class holds sprite (eggs, fireballs) state information. """
+    def __init__(self, col, start_time):
+        self.column = col                       # 0-3
+        self.is_fire = (random.random() < 0.25) # 1/4 chance of fireballs
+        self.start_time = start_time            # For drop physics
+        self.paused = False
+
+
+# ONE-TIME INITIALIZATION --------------
+
+MACROPAD = MacroPad(rotation=90)
+MACROPAD.display.auto_refresh = False
+MACROPAD.pixels.auto_write = False
+MACROPAD.pixels.brightness = 0.5
+AUDIO = audiopwmio.PWMAudioOut(board.SPEAKER) # For background audio
+
+FONT = bitmap_font.load_font(PATH + 'cursive-smart.pcf')
+
+# Create 3 displayio groups -- one each for the title, play and end screens.
+
+TITLE_GROUP = displayio.Group(max_size=1)
+TITLE_BITMAP, TITLE_PALETTE = adafruit_imageload.load(PATH + 'title.bmp',
+                                                      bitmap=displayio.Bitmap,
+                                                      palette=displayio.Palette)
+TITLE_GROUP.append(displayio.TileGrid(TITLE_BITMAP, pixel_shader=TITLE_PALETTE,
+                                      width=1, height=1,
+                                      tile_width=TITLE_BITMAP.width,
+                                      tile_height=TITLE_BITMAP.height))
+
+# Bitmap containing eggs, hatchling and fireballs
+SPRITE_BITMAP, SPRITE_PALETTE = adafruit_imageload.load(
+    PATH + 'sprites.bmp', bitmap=displayio.Bitmap, palette=displayio.Palette)
+SPRITE_PALETTE.make_transparent(0)
+
+PLAY_GROUP = displayio.Group(max_size=MAX_EGGS + 10)
+# Bitmap containing five shadow tiles ('no shadow' through 'max shadow')
+SHADOW_BITMAP, SHADOW_PALETTE = adafruit_imageload.load(
+    PATH + 'shadow.bmp', bitmap=displayio.Bitmap, palette=displayio.Palette)
+# Tilegrid with four shadow tiles; one per column
+SHADOW = displayio.TileGrid(SHADOW_BITMAP, pixel_shader=SHADOW_PALETTE,
+                            width=4, height=1, tile_width=16,
+                            tile_height=SHADOW_BITMAP.height, x=0,
+                            y=MACROPAD.display.height - SHADOW_BITMAP.height)
+PLAY_GROUP.append(SHADOW)
+SHADOW_SCALE = 5 / (MACROPAD.display.height - 20) # For picking shadow sprite
+LIFE_BAR = HorizontalProgressBar((0, 0), (MACROPAD.display.width, 7),
+                                 value=100, min_value=0, max_value=100,
+                                 bar_color=0xFFFFFF, outline_color=0xFFFFFF,
+                                 fill_color=0, margin_size=1)
+PLAY_GROUP.append(LIFE_BAR)
+# Score is last object in PLAY_GROUP, can be indexed as -1
+PLAY_GROUP.append(label.Label(FONT, text='0', max_glyphs=10, color=0xFFFFFF,
+                              anchor_point=(0.5, 0.0),
+                              anchored_position=(MACROPAD.display.width // 2,
+                                                 10)))
+
+END_GROUP = displayio.Group(max_size=1)
+END_BITMAP, END_PALETTE = adafruit_imageload.load(
+    PATH + 'gameover.bmp', bitmap=displayio.Bitmap, palette=displayio.Palette)
+END_GROUP.append(displayio.TileGrid(END_BITMAP, pixel_shader=END_PALETTE,
+                                    width=1, height=1,
+                                    tile_width=END_BITMAP.width,
+                                    tile_height=END_BITMAP.height))
+END_GROUP.append(label.Label(FONT, text='0', max_glyphs=10, color=0xFFFFFF,
+                             anchor_point=(0.5, 0.0),
+                             anchored_position=(MACROPAD.display.width // 2,
+                                                90)))
+
+
+# MAIN LOOP -- alternates play and end-game screens --------
+
+show_screen(TITLE_GROUP) # Just do this once on startup
+
+while True:
+
+    # NEW GAME -------------------------
+
+    SPRITES = []
+    SCORE = 0
+    PLAY_GROUP[-1].text = '0' # Score text
+    LIFE_BAR.value = 100
+    AUDIO.stop()
+    MACROPAD.display.show(PLAY_GROUP)
+    MACROPAD.display.refresh()
+    START_TIME = time.monotonic()
+
+    # PLAY UNTIL LIFE BAR DEPLETED -----
+
+    while LIFE_BAR.value > 0:
+        NOW = time.monotonic()
+        SPEED = 10 + (NOW - START_TIME) / 30   # Gradually speed up
+        FIRE_SPRITE = 3 + int((NOW * 6) % 2.0) # For animating fire
+
+        # Coalese any/all queued-up keypress events per column
+        COLUMN_PRESSED = [False] * 4
+        while True:
+            EVENT = MACROPAD.keys.events.get()
+            if not EVENT:
+                break
+            if EVENT.pressed:
+                COLUMN_PRESSED[EVENT.key_number % 4] = True
+
+        # For determining upper/lower extents of active egg sprites per column
+        COLUMN_MIN = [MACROPAD.display.height] * 4
+        COLUMN_MAX = [0] * 4
+
+        # Traverse sprite list backwards so we can pop() without index problems
+        for i in range(len(SPRITES) - 1, -1, -1):
+            sprite = SPRITES[i]
+            tile = PLAY_GROUP[i + 1] # Corresponding 1x1 TileGrid for sprite
+            column = sprite.column
+            elapsed = NOW - sprite.start_time # Time since add or pause event
+
+            if sprite.is_fire:
+                tile[0] = FIRE_SPRITE # Animate all flame sprites
+
+            if sprite.paused:                # Sprite at bottom of screen
+                if elapsed > 0.75:           # Hold position for 3/4 second,
+                    for x in range(0, 9, 4): # then LEDs off,
+                        MACROPAD.pixels[x + sprite.column] = (0, 0, 0)
+                    SPRITES.pop(i)           # and delete Sprite object and
+                    PLAY_GROUP.pop(i + 1)    # element from displayio group
+                    continue
+                if not sprite.is_fire:
+                    COLUMN_MAX[column] = max(COLUMN_MAX[column],
+                                             MACROPAD.display.height - 22)
+            else: # Sprite in motion
+                y = SPEED * elapsed * elapsed - 16
+                # Track top of all sprites, bottom of eggs only
+                COLUMN_MIN[column] = min(COLUMN_MIN[column], y)
+                if not sprite.is_fire:
+                    COLUMN_MAX[column] = max(COLUMN_MAX[column], y)
+                tile.y = int(y) # Sprite's vertical pos. in PLAY_GROUP
+
+                # Handle various catch or off-bottom actions...
+                if sprite.is_fire:
+                    if y >= MACROPAD.display.height: # Off bottom of screen,
+                        SPRITES.pop(i)               # remove fireball sprite
+                        PLAY_GROUP.pop(i + 1)
+                        continue
+                    elif y >= MACROPAD.display.height - 40:
+                        if COLUMN_PRESSED[column]:
+                            # Fireball caught, ouch!
+                            background_sound('sizzle.wav') # I smell bacon
+                            sprite.paused = True
+                            sprite.start_time = NOW
+                            tile.y = MACROPAD.display.height - 20
+                            LIFE_BAR.value = max(0, LIFE_BAR.value - 5)
+                            for x in range(0, 9, 4):
+                                MACROPAD.pixels[x + sprite.column] = (255, 0, 0)
+                else: # Is egg...
+                    if y >= MACROPAD.display.height - 22:
+                        # Egg hit ground
+                        background_sound('splat.wav')
+                        sprite.paused = True
+                        sprite.start_time = NOW
+                        tile.y = MACROPAD.display.height - 22
+                        tile[0] = 1 # Change sprite to broken egg
+                        LIFE_BAR.value = max(0, LIFE_BAR.value - 5)
+                        MACROPAD.pixels[8 + sprite.column] = (255, 255, 0)
+                    elif COLUMN_PRESSED[column]:
+                        if y >= MACROPAD.display.height - 40:
+                            # Egg caught at right time
+                            background_sound('rawr.wav')
+                            sprite.paused = True
+                            sprite.start_time = NOW
+                            tile.y = MACROPAD.display.height - 22
+                            tile[0] = 2 # Hatchling
+                            MACROPAD.pixels[4 + sprite.column] = (0, 255, 0)
+                            SCORE += 10
+                            PLAY_GROUP[-1].text = str(SCORE)
+                        elif y >= MACROPAD.display.height - 58:
+                            # Egg caught too early
+                            background_sound('splat.wav')
+                            sprite.paused = True
+                            sprite.start_time = NOW
+                            tile.y = MACROPAD.display.height - 40
+                            tile[0] = 1 # Broken egg
+                            LIFE_BAR.value = max(0, LIFE_BAR.value - 5)
+                            MACROPAD.pixels[sprite.column] = (255, 255, 0)
+
+        # Select shadow bitmaps based on each column's lowest egg
+        for i in range(4):
+            SHADOW[i] = min(4, int(COLUMN_MAX[i] * SHADOW_SCALE))
+
+        # Time to introduce a new sprite? 1/20 chance each frame, if space
+        if (len(SPRITES) < MAX_EGGS and random.random() < 0.05 and
+                max(COLUMN_MIN) > 16):
+            # Pick a column randomly...if it's occupied, keep trying...
+            while True:
+                COLUMN = random.randint(0, 3)
+                if COLUMN_MIN[COLUMN] > 16:
+                    # Found a clear spot. Add sprite and break loop
+                    SPRITES.append(Sprite(COLUMN, NOW))
+                    PLAY_GROUP.insert(-2, displayio.TileGrid(SPRITE_BITMAP,
+                                                             pixel_shader=SPRITE_PALETTE,
+                                                             width=1, height=1,
+                                                             tile_width=16,
+                                                             tile_height=SPRITE_BITMAP.height,
+                                                             x=COLUMN * 16,
+                                                             y=-16))
+                    break
+
+        MACROPAD.display.refresh()
+        MACROPAD.pixels.show()
+        if not AUDIO.playing:
+            # pylint: disable=protected-access
+            MACROPAD._speaker_enable.value = False
+        gc.collect()
+
+    # GAME OVER ------------------------
+
+    time.sleep(1.5) # Pause display for a moment
+    MACROPAD.pixels.fill(0)
+    MACROPAD.pixels.show()
+    # Pop any sprites from PLAY_GROUP (other elements remain, and SPRITES[]
+    # list is cleared at start of next game).
+    for _ in SPRITES:
+        PLAY_GROUP.pop(1)
+    END_GROUP[-1].text = str(SCORE)
+    show_screen(END_GROUP)

Macropad_Dragon_Drop/dragondrop/cursive-smart.license

@@ -0,0 +1,11 @@
+Copyright (c) 1999, Thomas A. Fine
+
+License to copy and distribute for both commercial and
+non-commercial use is herby granted, provided this notice
+is preserved.
+
+[email protected]
+http://hea-www.harvard.edu/~fine/
+
+Produced with bdfedit, a tcl/tk font editing program
+written by Thomas A. Fine