1 files changed, 96 insertions, 0 deletions
diff --git a/riseoftodmoldren/base.py b/riseoftodmoldren/base.py
new file mode 100644
index 0000000..c3549e5
--- /dev/null
+++ b/riseoftodmoldren/base.py
@@ -0,0 +1,96 @@
+import typing
+
+import pygame
+from pygame.event import Event
+
+
+class BaseApp:
+    name: str
+    size: typing.Tuple[int, int]
+
+    def __init__(self):
+        self.paused = False
+        self.weight, self.height = self.size
+        self.screen_rect = pygame.Rect(0, 0, *self.size)
+        self.screen: pygame.SurfaceType = None
+        self.should_close = False
+        self.initialized = False
+
+    def on_init(self):
+        if self.initialized:
+            return
+        self.initialized = True
+        pygame.init()
+        pygame.display.set_caption(self.name)
+        self.screen = pygame.display.set_mode(self.size, pygame.HWSURFACE | pygame.DOUBLEBUF)
+
+    def pull_events(self):
+        for event in pygame.event.get():
+            self.on_event(event)
+
+    def on_event(self, event):
+        pass
+
+    def on_update(self):
+        pass
+
+    def on_render(self):
+        pass
+
+    def on_cleanup(self):
+        pass
+
+    def run(self):
+        self.on_init()
+        while not self.should_close:
+            self.pull_events()
+            self.on_update()
+            self.on_render()
+            pygame.display.flip()
+        self.on_cleanup()
+        pygame.quit()
+
+
+class State:
+    def on_event(self, app: 'StateApp', event):
+        pass
+
+    def on_update(self, app: 'StateApp'):
+        pass
+
+    def on_render(self, app: 'StateApp'):
+        pass
+
+    def on_start(self, app: 'StateApp'):
+        pass
+
+
+class StateApp(BaseApp):
+
+    def __init__(self):
+        super().__init__()
+        self.states: typing.List[State] = []
+
+    def on_event(self, event):
+        self.states[-1].on_event(self, event)
+
+    def on_start(self):
+        self.states[-1].on_start(self)
+
+    def on_update(self):
+        self.states[-1].on_update(self)
+
+    def on_render(self):
+        self.states[-1].on_render(self)
+
+    def push_state(self, state: State):
+        self.states.append(state)
+        self.on_start()
+
+    def replace_state(self, new_state: State):
+        self.states[-1] = new_state
+        self.on_start()
+
+    def pop_state(self):
+        self.states.pop()
+        self.on_start()