From 6330fad2810d6717232fbb281e17fcfad3cb4359 Mon Sep 17 00:00:00 2001
From: EKNr1 <emil@i21k.de>
Date: Sun, 25 Feb 2024 21:32:34 +0100
Subject: [PATCH] Initial commit

---
 falling_sand.py | 192 ++++++++++++++++++++++++++++++++++++++++++++++++
 settings.json   |   1 +
 2 files changed, 193 insertions(+)
 create mode 100644 falling_sand.py
 create mode 100644 settings.json

diff --git a/falling_sand.py b/falling_sand.py
new file mode 100644
index 0000000..5489736
--- /dev/null
+++ b/falling_sand.py
@@ -0,0 +1,192 @@
+#!/usr/bin/python3
+
+import pygame
+from pygame._sdl2 import Window
+from dataclasses import dataclass
+from wobbl_tools.data_file import load_dataclass_json, save_dataclass_json
+from random import choice
+
+
+def true_false_random():
+    return choice([True, False])
+
+
+@dataclass
+class Settings:
+    fps: int = 60
+    window_size: tuple = (1000, 600)
+
+
+class FallingSandParticle:
+    def __init__(self, app, start_pos: tuple):
+        self.app = app
+        self.pos = start_pos
+        self.color = (50, 50, 200)
+        self.not_moving = 0
+
+        x, y = start_pos
+        self.app.matrix[x, y] = self.color
+
+    def update(self):
+        old_pos = self.pos
+        ox, oy = old_pos
+
+        if oy >= self.app.sand_surface.get_height() - 4:
+            self.app.falling_sand_particles.remove(self)
+            return
+
+        x, y = self.pos
+
+        if self.app.matrix[ox, oy + 1] == self.app.sand_surface.map_rgb(self.app.gray):
+            y += 1
+
+        elif (
+            self.app.matrix[ox - 1, oy + 2] == self.app.sand_surface.map_rgb(self.app.gray)
+            and self.app.matrix[ox + 1, oy + 2] == self.app.sand_surface.map_rgb(self.app.gray)
+        ):
+            if true_false_random():
+                x -= 1
+                y += 2
+
+            else:
+                x += 1
+                y += 2
+
+        elif self.app.matrix[ox - 1, oy + 2] == self.app.sand_surface.map_rgb(self.app.gray):
+            x -= 1
+            y += 2
+
+        elif self.app.matrix[ox + 1, oy + 2] == self.app.sand_surface.map_rgb(self.app.gray):
+            x += 1
+            y += 2
+
+        else:
+            if self.not_moving == 16:
+                self.app.falling_sand_particles.remove(self)
+                return
+
+            else:
+                self.not_moving += 1
+                return
+
+        self.not_moving = 0
+
+        self.pos = (x, y)
+
+        self.app.matrix[ox, oy] = self.app.gray
+        self.app.matrix[x, y] = self.color
+
+
+class FallingSand:
+    def __init__(self):
+        pygame.init()
+
+        self.screen = pygame.display.set_mode((1000, 600), pygame.RESIZABLE)
+        pygame.display.set_caption("Game")
+        self.window = Window.from_display_module()
+
+        self.loading_surface = self.generate_loading_surface()
+        self.screen.blit(self.loading_surface, (0, 0))
+        pygame.display.update()
+
+        self.settings = load_dataclass_json(Settings, "settings.json")
+        setattr(self.settings, "save", lambda: save_dataclass_json(self.settings, "settings.json"))
+
+        self.fps = self.settings.fps
+
+        self.falling_sand_particles = []
+
+        # colors
+        self.gray = (20, 20, 20)
+
+        # pygame objects
+        self.clock = pygame.time.Clock()
+        self.mouse = pygame.mouse
+        self.sand_surface = pygame.Surface(self.screen.get_size())
+        self.sand_surface.fill(self.gray)
+        self.matrix = pygame.PixelArray(self.sand_surface)
+
+        # loading finished
+        self.window.size = self.settings.window_size
+
+        self.running = True
+
+    def generate_loading_surface(self):
+        default_font = pygame.font.SysFont("ubuntu", 32, True)
+        loading_text = default_font.render("Loading...", True, (240, 240, 240))
+
+        w, h = self.screen.get_size()
+
+        loading_surface = pygame.Surface((w, h), flags=pygame.SRCALPHA)
+
+        loading_surface.fill((40, 40, 40))
+        loading_surface.blit(loading_text, (w // 2 - loading_text.get_width() // 2, h // 2 - loading_text.get_height() // 2))
+
+        return loading_surface
+
+    def loop(self):
+        self.screen.fill(self.gray)
+
+        self.matrix = pygame.PixelArray(self.sand_surface)
+
+        mouse_pressed = self.mouse.get_pressed()
+        mouse_pos = self.mouse.get_pos()
+        if mouse_pressed[0]:
+            self.spawn_sand(mouse_pos)
+
+        self.get_events()
+        if not self.running:
+            return
+
+        for particle in self.falling_sand_particles:
+            particle.update()
+
+        self.matrix.close()
+
+        self.screen.blit(self.sand_surface, (0, 0))
+
+        if self.loading_surface.get_alpha() > 0:
+            self.screen.blit(self.loading_surface, (0, 0))
+            self.loading_surface.set_alpha(self.loading_surface.get_alpha() - 4)
+
+        pygame.display.update()
+        self.clock.tick(self.fps)
+
+    def get_events(self):
+        for event in pygame.event.get():
+            if event.type == pygame.QUIT:
+                self.exit()
+                return
+
+            elif event.type == pygame.VIDEORESIZE:
+                self.window_update(event.size)
+
+    def exit(self):
+        self.running = False
+
+        self.settings.save()
+
+        print("Bye!")
+
+    def window_update(self, size):
+        self.settings.window_size = size
+
+    def spawn_sand(self, position):
+        x, y = position
+
+        for ax in range(-4, 5):
+            for ay in range(-4, 5):
+                print(ax, ay)
+                bx, by = position
+                bx += ax
+                by += ay
+
+                if self.matrix[bx, by] == self.sand_surface.map_rgb(self.gray):
+                    self.falling_sand_particles.append(FallingSandParticle(self, (bx, by)))
+
+
+if __name__ == "__main__":
+    sand = FallingSand()
+
+    while sand.running:
+        sand.loop()
diff --git a/settings.json b/settings.json
new file mode 100644
index 0000000..67d7e4d
--- /dev/null
+++ b/settings.json
@@ -0,0 +1 @@
+{"fps": 60, "window_size": [1000, 598]}
\ No newline at end of file