from kivy.app import App
from kivy.core.window import Window
from kivy.graphics import *
from kivy.uix.widget import Widget
from kivy.utils import get_color_from_hex, get_random_color

MAP_EDGE = 20
HEX_SIZE = 100
NUMBER_OF_HEXES = 2


class HexMap(Widget):

    def __init__(self, **kwargs):
        super(HexMap, self).__init__(**kwargs)
        self.redraw_scene()

        # It is crucial to redraw the scene whenever the scene or position changes.
        self.bind(size=self.redraw_scene, pos=self.redraw_scene)

    def redraw_scene(self, *args):
        with self.canvas:
            # Draw border around entire field.
            Color(*get_color_from_hex("#abcd00"))
            Rectangle(pos=(0, 0), size=(self.width, self.height))
            Color(*get_color_from_hex("#000000"))
            Rectangle(
                pos=(MAP_EDGE, MAP_EDGE),
                size=(self.width - (2 * MAP_EDGE), self.height - (2 * MAP_EDGE)))

            # Draw a hexagon in a decent spot.
            tiles_in_row = (self.width - MAP_EDGE * 2) / HEX_SIZE

            for i in range(tiles_in_row):
                Color(*get_color_from_hex("#00dd0055"))
                Ellipse(
                    pos=(MAP_EDGE + i * HEX_SIZE * 0.9, MAP_EDGE),
                    segments=6,
                    size=(HEX_SIZE, HEX_SIZE),
                )

            for i in range(tiles_in_row):
                Color(*get_color_from_hex("#00dd0055"))
                Ellipse(
                    pos=(MAP_EDGE + (i * HEX_SIZE * 0.9) + (0.5 * HEX_SIZE * 0.9), MAP_EDGE + (HEX_SIZE * 0.8)),
                    segments=6,
                    size=(HEX_SIZE, HEX_SIZE),
                )


class HexMapApp(App):
    def build(self):
        return HexMap()


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