Added node creation by left-click, node drawing and first part of node creator panel drawing

src/editor.py

@@ -7,6 +7,7 @@ import platformdirs
 import pygame
 
 from src.image_handler import ImageHandler
+from src.graph.graph import Graph
 
 
 class Editor:
@@ -37,7 +38,9 @@ class Editor:
             lambda z: self.font.render(str(z), True, (255, 255, 255)),
             self.ZOOMS
         ))
+        self.is_creating_node = False
         self.state: State = State.STOPPING
+        self.graph = Graph()
 
     def mainloop(self) -> None:
         self.state = State.LOADING
@@ -64,7 +67,10 @@ class Editor:
                 self.height = event.y
             elif event.type == pygame.KEYDOWN:
                 if event.key == pygame.K_ESCAPE:
-                    self.state = State.STOPPING
+                    if self.is_creating_node:
+                        self.is_creating_node = False
+                    else:
+                        self.state = State.STOPPING
                 elif event.key == pygame.K_PAGEUP:
                     self.zoom_in()
                 elif event.key == pygame.K_PAGEDOWN:
@@ -72,8 +78,13 @@ class Editor:
             elif event.type == pygame.MOUSEBUTTONDOWN:
                 if event.button == 2:
                     self.mid_drag_pos = event.pos
-                elif event.button == 1 and keys[pygame.K_LCTRL]:
-                    self.left_drag_pos = event.pos
+                elif event.button == 1:
+                    if keys[pygame.K_LCTRL]:
+                        self.left_drag_pos = event.pos
+                    else:
+                        worldpos = self.screen_to_world(event.pos[0], event.pos[1])
+                        self.graph.add_node(worldpos[0], worldpos[1])
+                        self.is_creating_node = True
                 elif event.button == 4:
                     self.zoom_in()
                 elif event.button == 5:
@@ -142,6 +153,8 @@ class Editor:
                     ox + x * self.MAP_SIZE,
                     oy + y * self.MAP_SIZE
                 ])
+        
+        self.render_nodes()
 
         pygame.draw.line(self.win, (150, 150, 150), [w2 - self.CROSSHAIR_SIZE, h2], [w2 + self.CROSSHAIR_SIZE, h2])
         pygame.draw.line(self.win, (150, 150, 150), [w2, h2 - self.CROSSHAIR_SIZE], [w2, h2 + self.CROSSHAIR_SIZE])
@@ -153,6 +166,9 @@ class Editor:
         pygame.draw.rect(self.win, (80, 80, 80), [0, 0, mouse_txt.get_width() + 10, mouse_txt.get_height() + 10])
         self.win.blit(mouse_txt, [5, 5])
 
+        if self.is_creating_node:
+            self.render_node_creator()
+
         pygame.display.flip()
 
     def render_zoom_slider(self) -> None:
@@ -195,6 +211,18 @@ class Editor:
 
         pygame.display.flip()
 
+    def render_node_creator(self) -> None:
+        width = self.width / 2
+        height = self.height / 2
+        x0 = (self.width - width) / 2
+        y0 = (self.height - height) / 2
+        pygame.draw.rect(self.win, (0, 0, 0), [x0, y0, width, height])
+    
+    def render_nodes(self) -> None:
+        for node in self.graph.nodes:
+            blitpos = self.world_to_screen(node.x, node.z)
+            pygame.draw.circle(self.win, (255, 0, 0), (blitpos[0], blitpos[1]), 10)
+
     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]
@@ -212,9 +240,19 @@ class Editor:
         world_z = floor((y - h2) / self.zoom + self.center[1])
 
         return int(world_x), int(world_z)
+    
+    def world_to_screen(self, world_x: int, world_z: int) -> tuple[int, int]:
+        w2 = self.width / 2
+        h2 = self.height / 2
+        screen_x = (world_x - self.center[0]) * self.zoom + w2
+        screen_y = (world_z - self.center[1]) * self.zoom + h2
+
+        return int(screen_x), int(screen_y)
+
 
 
 class State(Enum):
     STOPPING = auto()
     LOADING = auto()
     RUNNING = auto()
+    CREATING_NODE = auto()

src/graph/graph.py

@@ -10,7 +10,7 @@ class Graph:
         self.nodes: list[Node] = []
 
     def add_node(self, x: int, y: int) -> None:
-        self.nodes.append(Node(x, y))
+        self.nodes.append(Node(x, y, "NO NAME"))
 
     def add_edge(self, start_index: int, end_index: int, length: float) -> None:
         self.edges.append(Edge(start_index, end_index, length))

src/graph/node.py

@@ -1,4 +1,5 @@
 class Node:
-    def __init__(self, x: int, y: int):
+    def __init__(self, x: int, z: int, name: str):
         self.x: int = x
-        self.y: int = y
+        self.z: int = z
+        self.name: str = name