From 1ddd8bf98b0b2fb123dbf6f64c710cd4289f90c5 Mon Sep 17 00:00:00 2001
From: Hector Martinez <hectorsantacruz@hotmail.com>
Date: Fri, 25 Jan 2013 22:08:13 +0000
Subject: Calculo de puntaje de acuerdo a distancia

Se implemento un calculo de puntaje de acuerdo a la distancia euclidea
Seria ideal poder pasar a coordenadas polares de modo a implementar
el puntaje de acuerdo a las reglas de los dardos reales
---
diff --git a/activity.py b/activity.py
index be2a77d..53d5555 100644
--- a/activity.py
+++ b/activity.py
@@ -21,6 +21,7 @@
 """Lanzar Activity: a dart game"""
 
 import gtk
+import math
 import logging
 import gobject
 
@@ -36,8 +37,8 @@ from sugar.activity.widgets import ShareButton
 
 DELAY = 5
 DELTA = 1
-WIDTH = 512
-HEIGHT = 512
+WIDTH = 453
+HEIGHT = 453
 
 class LanzarActivity(activity.Activity):
     """LanzarActivity class as specified in activity.info"""
@@ -110,7 +111,7 @@ class LanzarActivity(activity.Activity):
         score_str = gtk.Label()
         score_str.set_markup("<span foreground='white' size='xx-large'><b>%s</b></span>" % _("Score"))
         self.score_text = gtk.Label()
-        self.score_text_tmpl = "<span foreground='white' size='xx-large'>%d</span>" 
+        self.score_text_tmpl = "<span foreground='white' size='xx-large'>%s</span>" 
         self.score_text.set_markup(self.score_text_tmpl % self._score)
         score_box = gtk.VBox()
         score_box.pack_start(score_str, expand=False, fill=False)
@@ -257,8 +258,8 @@ class LanzarActivity(activity.Activity):
         self.draw_background(drawing_area)
         self.draw_line(drawing_area, "HORIZONTAL", self._selected_y)
         self.draw_line(drawing_area, "VERTICAL", self._selected_x)
-        self.pixmap.draw_pixbuf(None, self.dart_pixbuf, 0, 0, x, y, -1, -1,
-                                gtk.gdk.RGB_DITHER_NONE, 0, 0)
+#        self.pixmap.draw_pixbuf(None, self.dart_pixbuf, 0, 0, x, y, -1, -1,
+#                                gtk.gdk.RGB_DITHER_NONE, 0, 0)
         
     def restart_game(self, drawing_area):
         self._x = self._y = 0
@@ -269,4 +270,41 @@ class LanzarActivity(activity.Activity):
         """ 
         Calcula el puntaje en base a las coordenadas X e Y dadas como parametro.
         """
-        return x + y # for debugging
+        #Variables para el calculo del puntaje
+        score = 0
+        distance = 0
+        rho = 0
+
+        #Variables dependientes de la imagen de fondo (dartboard.png)
+        center_x = 226
+        center_y = 227
+        radius_bullseye = 7
+        radius_bull = 16
+        radius_dartboard = 170
+        
+        #Calculo de la distancia euclidea del punto "seleccionado" respecto al centro
+        distance = math.sqrt(math.pow(abs(x - center_x),2) + math.pow(abs(y - center_y),2))
+
+        #Intento de cambiar coordenadas cartesianas a coordenadas polares
+        displaced_x = x - center_x
+        displaced_y = center_y - y
+#        rho = math.atan((displaced_y / displaced_x))
+
+        #Version inicial de calculo de puntaje de acuerdo a distancia al centro
+        if distance < radius_bullseye:
+            score = 10000 - distance * 10
+        elif distance < radius_bull:
+            score = 7500 - distance * 20
+        elif distance < radius_dartboard:
+            score = 5100 - distance * 30
+        else:
+            score = 0
+        
+        #Impresiones para depurar valores utiles en el calculo de puntaje
+        logging.debug("X: " + str(x) + " Y: " + str(y))
+        logging.debug("__X: " + str(displaced_x) + " __Y: " + str(displaced_y))
+        logging.debug("DISTANCE: "+str(distance) + " RHO: "+str(rho))
+        logging.debug("SCORE: "+str(int(score)))
+
+        return int(score)
+        
diff --git a/images/dartboard.png b/images/dartboard.png
index 1baaf1c..c065501 100644
--- a/images/dartboard.png
+++ b/images/dartboard.png
Binary files differ
--
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