import collections
import random
import math

from kivy import app, properties
from kivy.uix import button, label
from kivy.uix.floatlayout import FloatLayout
from kivy.graphics import Color, Ellipse, Line
from kivy.logger import Logger
import kivy.utils
from kivy.vector import Vector

MapCoords = collections.namedtuple('MapCoords', ['row', 'col'])


class StrategyGame(FloatLayout):
    main_map = properties.ObjectProperty(None)
    map_rows = properties.NumericProperty(0)
    map_cols = properties.NumericProperty(0)

    def __init__(self, **kwargs):
        super(StrategyGame, self).__init__(**kwargs)

        number_of_regions = self.map_rows * self.map_cols
        for region in xrange(0, number_of_regions):
            row = region / self.map_cols
            col = region % self.map_cols

            # Add hex cells to make up the map.
            hex_cell = HexMapCell()
            self.main_map.add_widget(hex_cell)

            # Add overlay conditionally.
            if (row % 6 == 1 and col % 2 == 1) or (row % 6 == 4 and col % 2 == 0):
                print('({}, {})'.format(row, col))
                #radius = math.sqrt(hex_cell.width**2 + hex_cell.height**2)
                radius = 2*hex_cell.height
                solid_x = hex_cell.x - hex_cell.height*2
                solid_y = hex_cell.y - hex_cell.height*2
                solid_size = (4*hex_cell.height, 4*hex_cell.height)
                with hex_cell.canvas.after:
                    Color(1,0,1,1)
                    hex_cell.ell = Line(circle=(hex_cell.x, hex_cell.y,radius, 0, 360, 6), width=2)
                    Color(*kivy.utils.get_random_color(alpha = .5))
                    hex_cell.solid = Ellipse(pos = (solid_x, solid_y), size = solid_size, segments = 6 )
                hex_cell.bind(pos=hex_cell.update_pos, size=hex_cell.update_pos)


class HexMapCell(label.Label):
    def __init__(self, row=0, col=0, **kwargs):
        super(HexMapCell, self).__init__(**kwargs)
        self.coords = MapCoords(row, col)

    def update_pos(self, instance, value):
        #radius = math.sqrt(self.width**2 + self.height**2)
        radius = 2*self.height
        solid_x = self.x - self.height*2
        solid_y = self.y - self.height*2
        solid_size = (4*self.height, 4*self.height)
        self.ell.circle = (self.x, self.y, radius, 0, 360, 6)
        self.solid.pos  = (solid_x, solid_y)
        self.solid.size = solid_size

class HexMapControlCell(button.Button):
    def __init__(self, hex_bind=None, **kwargs):
        super(HexMapControlCell, self).__init__(**kwargs)
        self.hex_bind = hex_bind
        self.background_color = random.random(), random.random(), random.random(), 1
        self.bind(pos=self.reposition_control_cell, size=self.resize_control_cell)
        self.text = '({}, {})'.format(self.hex_bind.coords.row, self.hex_bind.coords.col)

    def reposition_control_cell(self, obj, value):
        self.pos = self.hex_bind.pos

    def resize_control_cell(self, obj, value):
        self.height = self.hex_bind.height * 2
        self.width = self.hex_bind.width * 2


class StrategyGameApp(app.App):
    def build(self):
        return StrategyGame()

if __name__ == '__main__':
    StrategyGameApp().run()