added dirty to move + improved syntax

src/config.py

@@ -0,0 +1,27 @@
+import json
+import os.path
+
+
+class Config:
+    LAST_OPENED_FILE = ""
+    AUTOSAVE_INTERVAL = 5 * 60 * 1000
+
+    def __init__(self, path: str):
+        self._path: str = path
+
+        self.load()
+
+    def load(self) -> None:
+        if os.path.exists(self._path):
+            with open(self._path, "r") as f:
+                config = json.load(f)
+
+            self.LAST_OPENED_FILE = config["last_opened_file"]
+            self.AUTOSAVE_INTERVAL = config["autosave_interval"]
+
+    def save(self) -> None:
+        with open(self._path, "w") as f:
+            json.dump({
+                "last_opened_file": self.LAST_OPENED_FILE,
+                "autosave_interval": self.AUTOSAVE_INTERVAL
+            }, f, indent=4)

src/editor.py

@@ -6,20 +6,29 @@ from typing import Optional
 import platformdirs
 import pygame
 
+from src.config import Config
 from src.image_handler import ImageHandler
 from src.graph.graph import Graph
 
 
 class Editor:
+    APP_NAME: str = "lycacraft-paths"
+    APP_AUTHOR: str = "Lycacraft"
     WIDTH: int = 800
     HEIGHT: int = 600
     MAP_SIZE: int = 1024
-    MAPS_DIR: str = os.path.join(platformdirs.user_cache_dir(appname="lycacraft-paths", appauthor="Lycacraft"), "maps")
+    CACHE_DIR: str = platformdirs.user_cache_dir(appname=APP_NAME, appauthor=APP_AUTHOR, ensure_exists=True)
+    CONFIG_DIR: str = platformdirs.user_config_dir(appname=APP_NAME, appauthor=APP_AUTHOR, ensure_exists=True)
+    CONFIG_PATH: str = os.path.join(CONFIG_DIR, "config.json")
+    MAPS_DIR: str = os.path.join(CACHE_DIR, "maps")
+    AUTOSAVE_PATH: str = os.path.join(CACHE_DIR, "AUTOSAVE.txt")
+    AUTOSAVE_EVENT: int = pygame.event.custom_type()
     ZOOMS: tuple[float] = (0.25, 0.5, 1, 2, 4)
     CROSSHAIR_SIZE: int = 10
 
     def __init__(self):
         pygame.init()
+        self.config: Config = Config(self.CONFIG_PATH)
         self.width: int = self.WIDTH
         self.height: int = self.HEIGHT
         self.win: pygame.Surface = pygame.display.set_mode([self.width, self.height], pygame.RESIZABLE)
@@ -48,34 +57,50 @@ class Editor:
         self.selected_nodes: list[int] = []
         self.selected_edges: list[int] = []
         self.previously_created_nodes: list[int] = []
-        self.selection_rectangle: list[tuple[int, int], tuple[int, int]] = None
-        self.original_move_pos: tuple[int, int] = None
-        self.move_old_poses: dict[int, tuple[int, int]] = None
+        self.selection_rectangle: Optional[list[tuple[int, int], tuple[int, int]]] = None
+        self.original_move_pos: Optional[tuple[int, int]] = None
+        self.move_old_poses: Optional[dict[int, tuple[int, int]]] = None
+        self.dirty: bool = False
+        pygame.time.set_timer(self.AUTOSAVE_EVENT, self.config.AUTOSAVE_INTERVAL)
+
+        if os.path.exists(self.AUTOSAVE_PATH):
+            self.load(self.AUTOSAVE_PATH, False)
+            self.dirty = True
+        elif self.config.LAST_OPENED_FILE != "":
+            self.load(self.config.LAST_OPENED_FILE)
 
     def mainloop(self) -> None:
         self.state = State.LOADING
         while self.state != State.STOPPING:
-            pygame.display.set_caption(f"Lycacraft Map Editor - {self.clock.get_fps():.2f}fps")
+            caption = f"Lycacraft Map Editor - {self.clock.get_fps():.2f}fps"
+            if self.dirty:
+                caption += " (unsaved)"
+            pygame.display.set_caption(caption)
             self.process_events()
             if self.state == State.LOADING:
                 self.render_loading()
                 if not self.image_handler.loading:
                     self.state = State.RUNNING
             elif self.state == State.RUNNING:
-                if self.selection_rectangle != None:
+                if self.selection_rectangle is not None:
                     self.expand_selection_rect()
-                if self.original_move_pos != None:
+                if self.original_move_pos is not None:
                     self.move_poses()
                 self.render()
             self.clock.tick(30)
 
+    def quit(self) -> None:
+        if self.dirty:
+            self.save(self.AUTOSAVE_PATH, False)
+        self.state = State.STOPPING
+
     def process_events(self) -> None:
         events = pygame.event.get()
 
         keys = pygame.key.get_pressed()
         for event in events:
             if event.type == pygame.QUIT:
-                self.state = State.STOPPING
+                self.quit()
             elif event.type == pygame.WINDOWRESIZED:
                 self.width = event.x
                 self.height = event.y
@@ -96,20 +121,26 @@ class Editor:
                             self.clear_selection()
                             self.previously_created_nodes = []
                         else:
-                            self.state = State.STOPPING
+                            self.quit()
                     elif event.key == pygame.K_PAGEUP:
                         self.zoom_in()
                     elif event.key == pygame.K_PAGEDOWN:
                         self.zoom_out()
                     elif event.key == pygame.K_BACKSPACE:
                         self.deleted_selected_objects()
+                    elif event.key == pygame.K_s and event.mod & (pygame.KMOD_CTRL | pygame.KMOD_META):
+                        self.save()
+                    elif event.key == pygame.K_l and event.mod & (pygame.KMOD_CTRL | pygame.KMOD_META):
+                        self.load()
                     elif event.key == pygame.K_RETURN:
                         if len(self.selected_nodes) > 0:
-                            self.typing_text = "" if len(self.selected_nodes) > 1 else self.graph.nodes[self.selected_nodes[0]].name
+                            self.typing_text = ""
+                            if len(self.selected_nodes) == 1:
+                                self.typing_text = self.graph.nodes[self.selected_nodes[0]].name
                             self.is_renaming_node = True
             elif event.type == pygame.KEYUP:
                 if event.key == pygame.K_m:
-                    if self.original_move_pos != None:
+                    if self.original_move_pos is not None:
                         self.reset_move_poses()
             elif event.type == pygame.MOUSEBUTTONDOWN:
                 if event.button == 2:
@@ -136,10 +167,13 @@ class Editor:
                 elif event.button == 1:
                     if keys[pygame.K_LCTRL]:
                         self.left_drag_pos = None
-                    elif keys[pygame.K_m] and self.original_move_pos != None:
+                    elif keys[pygame.K_m] and self.original_move_pos is not None:
                         self.confirm_move_poses()
-                    elif self.selection_rectangle != None:
+                    elif self.selection_rectangle is not None:
                         self.release_selection_rect(keys[pygame.K_LSHIFT] or keys[pygame.K_RSHIFT])
+            elif event.type == self.AUTOSAVE_EVENT:
+                if self.dirty:
+                    self.save(self.AUTOSAVE_PATH, False)
 
         if keys[pygame.K_LEFT]:
             self.center[0] -= 4 / self.zoom
@@ -283,10 +317,10 @@ class Editor:
         hover_index, is_node = self.get_hover_object()
         if is_node:
             self.render_nodes()
-            if self.selection_rectangle == None:
+            if self.selection_rectangle is None:
                 self.render_hover_node(hover_index)
         else:
-            if self.selection_rectangle == None:
+            if self.selection_rectangle is None:
                 self.render_hover_edge(hover_index)
             self.render_nodes()
 
@@ -294,7 +328,9 @@ class Editor:
         for edge in self.graph.edges:
             node_1, node_2 = self.graph.get_edge_nodes(edge)
             color = (0, 255, 255) if edge.index in self.selected_edges else (255, 0, 0)
-            pygame.draw.line(self.win, color, self.world_to_screen(node_1.x, node_1.z), self.world_to_screen(node_2.x, node_2.z), self.line_size)
+            start = self.world_to_screen(node_1.x, node_1.z)
+            end = self.world_to_screen(node_2.x, node_2.z)
+            pygame.draw.line(self.win, color, start, end, self.line_size)
     
     def render_nodes(self) -> None:
         for node in self.graph.nodes:
@@ -316,20 +352,21 @@ class Editor:
     def render_hover_edge(self, edge_index):
         if edge_index != -1:
             node_1, node_2 = self.graph.get_edge_nodes(self.graph.edges[edge_index])
-            pygame.draw.line(self.win, (0, 0, 0), self.world_to_screen(node_1.x, node_1.z), self.world_to_screen(node_2.x, node_2.z), self.edge_detect_radius)
+            start = self.world_to_screen(node_1.x, node_1.z)
+            end = self.world_to_screen(node_2.x, node_2.z)
+            pygame.draw.line(self.win, (0, 0, 0), start, end, self.edge_detect_radius)
             color = (0, 255, 255) if edge_index in self.selected_edges else (255, 0, 0)
-            pygame.draw.line(self.win, color, self.world_to_screen(node_1.x, node_1.z), self.world_to_screen(node_2.x, node_2.z), self.line_size)
+            pygame.draw.line(self.win, color, start, end, self.line_size)
 
     def render_selection_rect(self):
         rect = self.selection_rectangle
-        if rect != None:
+        if rect is not None:
             left = min(rect[0][0], rect[1][0])
             top = min(rect[0][1], rect[1][1])
             width = abs(rect[0][0] - rect[1][0])
             height = abs(rect[0][1] - rect[1][1])
             pygame.draw.rect(self.win, (32, 32, 32), pygame.Rect(left, top, width, height), self.line_size)
 
-
     def set_zoom(self, zoom_i: int) -> None:
         self.zoom_i = max(0, min(len(self.ZOOMS) - 1, zoom_i))
         self.zoom = self.ZOOMS[self.zoom_i]
@@ -413,21 +450,22 @@ class Editor:
         self.selected_edges = []
 
     def rename_nodes(self) -> None:
+        self.dirty = True
         for node in self.selected_nodes:
             self.graph.nodes[node].rename_node(self.typing_text)
         self.typing_text = ""
         self.is_renaming_node = False
 
-    def create_node(self, pos, typing_text = "") -> None:
+    def create_node(self, pos: tuple[int, int], typing_text: str = "") -> None:
+        self.dirty = True
         self.graph.add_node(pos[0], pos[1], typing_text)
         if len(self.selected_nodes) == 1:
             self.previously_created_nodes.append(self.selected_nodes[0])
         self.select_node(self.graph.number_of_nodes() - 1)
     
     def create_edge(self, node_1: int, node_2: int) -> None:
-        n1 = self.graph.nodes[node_1]
-        n2 = self.graph.nodes[node_2]
-        self.graph.add_edge(node_1, node_2, ((n1.x - n2.x) ** 2 + (n1.z - n2.z) ** 2) ** 0.5)
+        self.dirty = True
+        self.graph.add_edge(node_1, node_2)
     
     def get_hovering_nodes(self) -> tuple[list[int], list[float]]:
         hovering = []
@@ -503,6 +541,7 @@ class Editor:
         return ((px - node_pos[0]) ** 2 + (pz - node_pos[1]) ** 2) ** 0.5
     
     def deleted_selected_objects(self):
+        self.dirty = True
         edges_to_delete = [self.graph.edges[i] for i in self.selected_edges]
         nodes_to_delete = [self.graph.nodes[i] for i in self.selected_nodes]
         for edge in edges_to_delete:
@@ -515,7 +554,7 @@ class Editor:
             self.selected_nodes.append(self.previously_created_nodes[n - 1])
             self.previously_created_nodes.pop()
 
-    def create_selection_rect(self, shifting = False):
+    def create_selection_rect(self, shifting: bool = False):
         if not shifting:
             self.clear_selection()
             self.previously_created_nodes = []
@@ -525,7 +564,7 @@ class Editor:
     def expand_selection_rect(self):
         self.selection_rectangle[1] = pygame.mouse.get_pos()
 
-    def release_selection_rect(self, shifting = False):
+    def release_selection_rect(self, shifting: bool = False):
         if not shifting:
             self.clear_selection()
         self.previously_created_nodes = []
@@ -577,9 +616,37 @@ class Editor:
         self.move_old_poses = None
 
     def confirm_move_poses(self):
+        self.dirty = True
         self.original_move_pos = None
         self.move_old_poses = None
 
+    def save(self, path: Optional[str] = None, save_config: bool = True) -> None:
+        last_path = self.config.LAST_OPENED_FILE
+        if path is None:
+            path = input(f"Save as ({last_path}): ")
+            if len(path.strip()) == 0:
+                path = last_path
+
+        self.graph.save(path)
+        if save_config:
+            self.config.LAST_OPENED_FILE = path
+            self.config.save()
+            if os.path.exists(self.AUTOSAVE_PATH):
+                os.remove(self.AUTOSAVE_PATH)
+        self.dirty = False
+
+    def load(self, path: Optional[str] = None, save_config: bool = True) -> None:
+        last_path = self.config.LAST_OPENED_FILE
+        if path is None:
+            path = input(f"Load from ({last_path}): ")
+            if len(path.strip()) == 0:
+                path = last_path
+
+        self.graph = Graph.load(path)
+        if save_config:
+            self.config.LAST_OPENED_FILE = path
+            self.config.save()
+        self.dirty = False
 
 
 class State(Enum):

src/graph/graph.py

@@ -1,9 +1,11 @@
-from math import inf
+from __future__ import annotations
+from math import inf, sqrt
 from typing import Iterator, Optional
 
 from src.graph.node import Node
 from src.graph.edge import Edge
 
+
 class Graph:
     def __init__(self):
         self.edges: list[Edge] = []
@@ -12,7 +14,11 @@ class Graph:
     def add_node(self, x: int, z: int, name: str = "") -> None:
         self.nodes.append(Node(x, z, len(self.nodes), name))
 
-    def add_edge(self, start_index: int, end_index: int, length: float) -> None:
+    def add_edge(self, start_index: int, end_index: int, auto_length: bool = True) -> None:
+        length = 0
+        if auto_length:
+            n1, n2 = self.nodes[start_index], self.nodes[end_index]
+            length = sqrt((n1.x - n2.x)**2 + (n1.z - n2.z)**2)
         self.edges.append(Edge(start_index, end_index, length, len(self.edges)))
 
     def delete_edge(self, edge: Edge) -> None:
@@ -36,6 +42,12 @@ class Graph:
         for no in self.nodes:
             no.index = self.nodes.index(no)
 
+    def recompute_lengths(self) -> None:
+        for edge in self.edges:
+            n1 = self.nodes[edge.start]
+            n2 = self.nodes[edge.end]
+            edge.length = sqrt((n1.x - n2.x)**2 + (n1.z - n2.z)**2)
+
     def number_of_nodes(self) -> int:
         return len(self.nodes)
     
@@ -95,3 +107,33 @@ class Graph:
                     node_sequences[end].append(end)
 
         return node_sequences[target_index]
+
+    def save(self, path: str) -> None:
+        with open(path, "w") as f:
+            for node in self.nodes:
+                f.write(f"n {node.x} {node.z} {node.name}\n")
+            f.write("\n")
+            for edge in self.edges:
+                f.write(f"e {edge.start} {edge.end}\n")
+
+    @staticmethod
+    def load(path: str) -> Graph:
+        graph = Graph()
+        with open(path, "r") as f:
+            lines = f.read().splitlines()
+            for line in lines:
+                if len(line.strip()) == 0:
+                    continue
+
+                entry_type, values = line.split(" ", 1)
+                if entry_type == "n":
+                    x, z, name = values.split(" ", 2)
+                    x, z = int(x), int(z)
+                    graph.add_node(x, z, name)
+                elif entry_type == "e":
+                    start, end = values.split(" ", 2)
+                    start, end = int(start), int(end)
+                    graph.add_edge(start, end, False)
+
+        graph.recompute_lengths()
+        return graph

utils/map_splitter.py

@@ -8,6 +8,7 @@ Image.MAX_IMAGE_PIXELS = 200000000
 MAP_SIZE = 1024
 DEFAULT_PATH = os.path.join(platformdirs.user_cache_dir(appname="lycacraft-paths", appauthor="Lycacraft"), "maps")
 
+
 def clamp(mn, value, mx):
     return max(mn, min(mx, value))