From 89e09de5e12744f9435b6f31fa2e9f7116fc6347 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Karel=20Ko=C4=8D=C3=AD?= <karel.koci@nic.cz>
Date: Wed, 19 Jul 2017 14:58:24 +0200
Subject: Add statemachine and empty game class

---
 turtetris_master/__init__.py       | 12 +++------
 turtetris_master/game.py           | 10 ++++++++
 turtetris_master/screen_checker.py |  7 +++--
 turtetris_master/state_machine.py  | 52 ++++++++++++++++++++++++++++++++++++--
 turtetris_slave/__init__.py        |  1 -
 5 files changed, 66 insertions(+), 16 deletions(-)
 create mode 100644 turtetris_master/game.py

diff --git a/turtetris_master/__init__.py b/turtetris_master/__init__.py
index e7f9fab..b389525 100644
--- a/turtetris_master/__init__.py
+++ b/turtetris_master/__init__.py
@@ -1,23 +1,17 @@
 import time
 from .led_output import Matrix
 from .usb_input import Gamepad
-from .screen_checker import ScreenChecker
+from .state_machine import StateMachine
 
 
 def main():
     "Main function"
     inpt = Gamepad()
     mtrx = Matrix()
-    sc = ScreenChecker(mtrx)
-    mtrx.display()  # Display first state
+    sm = StateMachine(mtrx, inpt)
     while True:
         tstart = time.time()
-        ##
-        #print(inpt.check())
-        if sc.tick():
-            mtrx.display()
-            #print(mtrx.__mat__[2])
-        ##
+        sm.tick()
         trest = (1/60) - (time.time() - tstart)
         if trest > 0:
             time.sleep(trest)
diff --git a/turtetris_master/game.py b/turtetris_master/game.py
new file mode 100644
index 0000000..9b0c7cf
--- /dev/null
+++ b/turtetris_master/game.py
@@ -0,0 +1,10 @@
+class Game:
+    "game it self"
+
+    def __init__(self, matrix):
+        self.matrix = matrix
+        pass
+
+    def tick(self, input):
+        "Do game tick"
+        return True
diff --git a/turtetris_master/screen_checker.py b/turtetris_master/screen_checker.py
index d8ed327..508db1b 100644
--- a/turtetris_master/screen_checker.py
+++ b/turtetris_master/screen_checker.py
@@ -12,6 +12,7 @@ class ScreenChecker:
             self.__pos__[i][1] = i
             for y in range(0, i):
                 matrix.pixel(i, y, 'green')
+        matrix.display()
 
     def __pos_inc__(self, p):
         p += 1
@@ -21,13 +22,11 @@ class ScreenChecker:
 
     def tick(self):
         self.__tick__ += 1
-        if self.__tick__ > 60:
+        if self.__tick__ > 15:
             self.__tick__ = 0
             for i in range(0, self.matrix.height):
                 self.matrix.pixel(self.__pos__[i][0], i, '000000')
                 self.__pos__[i][0] = self.__pos_inc__(self.__pos__[i][0])
                 self.__pos__[i][1] = self.__pos_inc__(self.__pos__[i][1])
                 self.matrix.pixel(self.__pos__[i][1], i, color='green')
-            return True
-        else:
-            return False
+            self.matrix.display()
diff --git a/turtetris_master/state_machine.py b/turtetris_master/state_machine.py
index 880a582..cef03e4 100644
--- a/turtetris_master/state_machine.py
+++ b/turtetris_master/state_machine.py
@@ -1,4 +1,52 @@
-#class StateMachine:
-    #"Game state machine"
+from .screen_checker import ScreenChecker
+from .game import Game
 
 
+class StateMachine:
+    "Game state machine"
+
+    def __init__(self, matrix, input):
+        "Initializes game machine"
+        self.state = "initializing"
+        self.matrix = matrix
+        self.input = input
+        self.__update_state__('screen_checker')
+
+    def __update_state__(self, state):
+        "Applies given state"
+        def __exception__():
+            raise Exception('Can\'t transfer from ' + self.state + ' to '
+                            + state)
+        if state == "screen_checker":
+            if self.state == "initializing":
+                self.screen_checker = ScreenChecker(self.matrix)
+            else:
+                __exception__()
+        elif state == "game":
+            if self.state == "screen_checker" or self.state == "game-over":
+                self.game = Game(self.matrix)
+            else:
+                __exception__()
+        elif state == "game-over":
+            if self.state != "game":
+                __exception__()
+        else:
+            __exception__()
+        self.state = state
+
+    def tick(self):
+        "Do tick"
+        inpt = self.input.check()
+        if self.state == "screen_checker":
+            if inpt['start']:
+                self.__update_state__('game')
+            else:
+                self.screen_checker.tick()
+        elif self.state == "game":
+            if not self.game.tick(inpt):
+                self.__update_state__('game-over')
+        elif self.state == "game-over":
+            if inpt['start']:
+                self.__update_state__('game')
+        else:
+            raise Exception('Invalid state ' + self.state)
diff --git a/turtetris_slave/__init__.py b/turtetris_slave/__init__.py
index d5dd129..ea75ad0 100644
--- a/turtetris_slave/__init__.py
+++ b/turtetris_slave/__init__.py
@@ -22,7 +22,6 @@ def main():
     leds.prepare()
     while True:
         msg = sck.recv_string()
-        print(msg)
         json0 = msg.find(' ')  # First empty char is end of envelope
         leds.output(json.loads(msg[json0:]))
 
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