Progress toward release.

1 files changed, 264 insertions, 0 deletions

diff --git a/balloongame.py b/balloongame.py
new file mode 100644
index 0000000..a32fe0f
--- /dev/null
+++ b/balloongame.py
@@ -0,0 +1,264 @@
+# Copyright 2008 by Kate Scheppke and Wade Brainerd.  
+# This file is part of Typing Turtle.
+#
+# Typing Turtle is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+# 
+# Typing Turtle is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with Typing Turtle.  If not, see <http://www.gnu.org/licenses/>.
+
+import random
+from gettext import gettext as _
+
+import gobject, pygtk, gtk, pango
+
+# Each 'stage' contains a certain number of balloons as well as
+# parameters about them.
+BALLOON_STAGES = [
+    { 'count': 10, 'delay': 80 },
+#    { 'count': 20, 'delay': 40 },
+#    { 'count': 80, 'delay': 20 },
+#    { 'count': 100, 'delay': 10 },
+]
+
+class Balloon:
+    def __init__(self, x, y, vx, vy, word):
+        self.x = x
+        self.y = y
+        self.vx = vx
+        self.vy = vy
+        self.word = word
+    
+class BalloonGame(gtk.VBox):
+    def __init__(self, lesson, activity):
+        gtk.VBox.__init__(self)
+        
+        self.lesson = lesson
+        self.activity = activity
+        
+        # Build title bar.
+        title = gtk.Label()
+        title.set_markup("<span size='20000'><b>" + lesson['name'] + "</b></span>")
+        title.set_alignment(1.0, 0.0)
+        
+        stoplabel = gtk.Label(_('Go Back'))
+        stopbtn =  gtk.Button()
+        stopbtn.add(stoplabel)
+        stopbtn.connect('clicked', self.stop_cb)
+        
+        hbox = gtk.HBox()
+        hbox.pack_start(stopbtn, False, False, 10)
+        hbox.pack_end(title, False, False, 10)
+        
+        # Build the game drawing area.
+        self.area = gtk.DrawingArea()
+        self.area.modify_bg(gtk.STATE_NORMAL, self.get_colormap().alloc_color('#ffffff'))
+        self.area.connect("expose-event", self.expose_cb)
+
+        # Connect keyboard grabbing and releasing callbacks.        
+        self.area.connect('realize', self.realize_cb)
+        self.area.connect('unrealize', self.unrealize_cb)
+
+        self.pack_start(hbox, False, False, 10)
+        self.pack_start(self.area, True, True)
+        
+        self.show_all()
+        
+        # Initialize the game data.
+        self.balloons = []
+
+        self.score = 0
+        self.spawn_delay = 10
+
+        self.stage_idx = 0
+        self.stage = BALLOON_STAGES[self.stage_idx]
+        self.count_left = self.stage['count']
+
+        self.finished = False
+
+        # Start the animation loop running.        
+        self.update_timer = gobject.timeout_add(20, self.tick)
+    
+    def realize_cb(self, widget):
+        self.activity.add_events(gtk.gdk.KEY_PRESS_MASK)
+        self.key_press_cb_id = self.activity.connect('key-press-event', self.key_cb)
+
+        # Clear the mouse cursor. 
+        #pixmap = gtk.gdk.Pixmap(self.activity.window, 1, 1)
+        #color = gtk.gdk.Color()
+        #cursor = gtk.gdk.Cursor(pixmap, pixmap, color, color, 0, 0)
+        #self.area.window.set_cursor(cursor)
+        
+    def unrealize_cb(self, widget):
+        self.activity.disconnect(self.key_press_cb_id)
+    
+    def stop_cb(self, widget):
+        # Stop the animation loop.
+        if self.update_timer:
+            gobject.source_remove(self.update_timer)
+        
+        self.activity.pop_screen()
+
+    def key_cb(self, widget, event):
+        # Ignore hotkeys.
+        if event.state & (gtk.gdk.CONTROL_MASK | gtk.gdk.MOD1_MASK):
+            return False
+
+        # Extract information about the key pressed.
+        key = gtk.gdk.keyval_to_unicode(event.keyval)
+        if key != 0: key = unichr(key)
+
+        if self.finished:
+            key_name = gtk.gdk.keyval_name(event.keyval)
+            if key_name == 'Return':
+                self.activity.pop_screen()
+
+        else:
+            for b in self.balloons:
+                if b.word[0] == key:
+                    b.word = b.word[1:]
+                    self.score += 10
+
+                    # Pop the balloon if it's been typed.
+                    if len(b.word) == 0:
+                        self.balloons.remove(b)
+                        self.score += 100
+        
+        return False
+    
+    def update_balloon(self, b):
+        b.x += b.vx
+        b.y += b.vy 
+
+        if b.x < 100 or b.x >= self.bounds.width - 100:
+            b.vx = -b.vx
+
+        if b.y < -100:
+            self.balloons.remove(b)
+    
+    def tick(self):
+        if self.finished:
+            return
+
+        self.bounds = self.area.get_allocation()
+            
+        for b in self.balloons:
+            self.update_balloon(b)
+
+        self.spawn_delay -= 1
+        if self.spawn_delay <= 0:
+            self.count_left -= 1
+
+            if self.count_left <= 0:
+                self.stage_idx += 1
+
+                if self.stage_idx < len(BALLOON_STAGES):
+                    self.stage = BALLOON_STAGES[self.stage_idx]
+                    self.count_left = self.stage['count']
+
+            else:
+                word = random.choice(self.lesson['words'])
+
+                x = random.randint(100, self.bounds.width - 100)
+                y = self.bounds.height + 100
+
+                vx = random.uniform(-2, 2)
+                vy = random.uniform(-5, -3)
+
+                b = Balloon(x, y, vx, vy, word)
+                self.balloons.append(b)
+
+                delay = self.stage['delay']
+                self.spawn_delay = random.randint(delay-20, delay+20)
+
+        if len(self.balloons) == 0 and self.stage_idx >= len(BALLOON_STAGES):
+            self.finished = True
+ 
+        self.queue_draw()
+
+        return True
+
+    def draw_results(self, gc):
+        # Draw background.
+        w = self.bounds.width - 400
+        h = self.bounds.height - 200
+        x = self.bounds.width/2 - w/2
+        y = self.bounds.height/2 - h/2
+
+        gc.foreground = self.area.get_colormap().alloc_color(50000,50000,50000)
+        self.area.window.draw_rectangle(gc, True, x, y, w, h)
+        gc.foreground = self.area.get_colormap().alloc_color(0,0,0)
+        self.area.window.draw_rectangle(gc, False, x, y, w, h)
+
+        # Draw text
+        report = _('You finished!\n\nYour score was %(score)d.') % \
+            { 'score': self.score }
+    
+        gc.foreground = self.area.get_colormap().alloc_color(0,0,0)
+        layout = self.area.create_pango_layout(report)
+        layout.set_font_description(pango.FontDescription('Times 14'))    
+        size = layout.get_size()
+        tx = x+w/2-(size[0]/pango.SCALE)/2
+        ty = y+h/2-(size[1]/pango.SCALE)/2
+        self.area.window.draw_layout(gc, tx, ty, layout)
+
+    def draw_balloon(self, gc, b):
+        x = int(b.x)
+        y = int(b.y)
+        
+        # Draw the balloon.
+        gc.foreground = self.area.get_colormap().alloc_color(65535,0,0)
+        self.area.window.draw_arc(gc, True, x-50, y-50, 100, 100, 0, 360*64)
+    
+        # Draw the text.
+        gc.foreground = self.area.get_colormap().alloc_color(0,0,0)
+        layout = self.area.create_pango_layout(b.word)
+        size = layout.get_size()
+        tx = x-(size[0]/pango.SCALE)/2
+        ty = y-(size[1]/pango.SCALE)/2
+        self.area.window.draw_layout(gc, tx, ty, layout)
+
+    def draw(self):
+        self.bounds = self.area.get_allocation()
+
+        gc = self.area.window.new_gc()
+        
+        # Draw background.
+        #gc.foreground = self.area.get_colormap().alloc_color(65535,65535,65535)
+        #self.area.window.draw_rectangle(gc, True, 0, 0, bounds.width, bounds.height)
+
+        # Draw the balloons.
+        for b in self.balloons:
+            self.draw_balloon(gc, b)
+
+        if self.finished:
+            self.draw_results(gc)
+
+        else:
+            # Draw instructions.
+            gc.foreground = self.area.get_colormap().alloc_color(0,0,0)
+
+            layout = self.area.create_pango_layout(_('Type the words to pop the balloons!'))
+            layout.set_font_description(pango.FontDescription('Times 14'))    
+            size = layout.get_size()
+            x = (self.bounds.width - size[0]/pango.SCALE)/2
+            y = self.bounds.height-20 - size[1]/pango.SCALE 
+            self.area.window.draw_layout(gc, x, y, layout)
+
+            # Draw score.
+            layout = self.area.create_pango_layout(_('SCORE: %d') % self.score)
+            layout.set_font_description(pango.FontDescription('Times 14'))    
+            size = layout.get_size()
+            x = self.bounds.width-20-size[0]/pango.SCALE
+            y = 20
+            self.area.window.draw_layout(gc, x, y, layout)
+
+    def expose_cb(self, area, event):
+        self.draw()