Add delay to direction change

survival/components/direction_component.py

@@ -0,0 +1,12 @@
+from survival.enums import Direction
+
+
+class DirectionChangeComponent:
+    def __init__(self, direction):
+        self.direction = direction
+
+    def rotate_left(self):
+        self.direction = Direction.rotate_left(self.direction)
+
+    def rotate_right(self):
+        self.direction = Direction.rotate_right(self.direction)

survival/components/pathfinding_component.py

@@ -1,4 +1,5 @@
 class PathfindingComponent:
     def __init__(self, target_pos):
         self.target_grid_pos = (int(target_pos[0] / 32), int(target_pos[1] / 32))
+        self.current_target = None
         self.path = None

survival/components/position_component.py

@@ -1,4 +1,5 @@
 from survival.enums import Direction
+from survival.settings import DIRECTION_CHANGE_DELAY
 
 
 class PositionComponent:
@@ -6,9 +7,10 @@ class PositionComponent:
         self.position = pos
         self.grid_position = grid_pos
         self.direction = Direction.DOWN
+        self.direction_change_timer = DIRECTION_CHANGE_DELAY
 
     def rotate_left(self):
-        self.direction = Direction.rotate_left(self.direction)
+        return Direction.rotate_left(self.direction)
 
     def rotate_right(self):
-        self.direction = Direction.rotate_right(self.direction)
+        return Direction.rotate_right(self.direction)

survival/settings.py

@@ -1,3 +1,4 @@
 SCREEN_WIDTH = 1920
 SCREEN_HEIGHT = 1080
 RESOURCES_AMOUNT = 300
+DIRECTION_CHANGE_DELAY = 200

survival/systems/direction_system.py

@@ -0,0 +1,27 @@
+from survival import esper
+from survival.components.direction_component import DirectionChangeComponent
+from survival.components.position_component import PositionComponent
+from survival.settings import DIRECTION_CHANGE_DELAY
+
+
+class DirectionSystem(esper.Processor):
+    def process(self, dt):
+        for ent, (pos, direction) in self.world.get_components(PositionComponent, DirectionChangeComponent):
+            if pos.direction_change_timer > 0:
+                pos.direction_change_timer -= dt
+                continue
+
+            dir_left = pos.rotate_left()
+            dir_right = pos.rotate_right()
+
+            pos.direction_change_timer = DIRECTION_CHANGE_DELAY
+
+            if dir_left == direction.direction:
+                pos.direction = dir_left
+            elif dir_right == direction.direction:
+                pos.direction = dir_right
+            else:
+                pos.direction = dir_left
+                continue
+
+            self.world.remove_component(ent, DirectionChangeComponent)

survival/systems/input_system.py

@@ -1,6 +1,7 @@
 import pygame
 
 from survival import esper
+from survival.components.direction_component import DirectionChangeComponent
 from survival.components.input_component import InputComponent
 from survival.components.moving_component import MovingComponent
 from survival.components.pathfinding_component import PathfindingComponent
@@ -25,8 +26,10 @@ class InputSystem(esper.Processor):
             if self.world.has_component(ent, MovingComponent):
                 continue
             if keys[pygame.K_LEFT]:
-                pos.rotate_left()
+                if not self.world.has_component(ent, DirectionChangeComponent):
+                    self.world.add_component(ent, DirectionChangeComponent(pos.rotate_left()))
             elif keys[pygame.K_RIGHT]:
-                pos.rotate_right()
+                if not self.world.has_component(ent, DirectionChangeComponent):
+                    self.world.add_component(ent, DirectionChangeComponent(pos.rotate_right()))
             elif keys[pygame.K_UP]:
                 self.world.add_component(ent, MovingComponent())

survival/systems/pathfinding_movement_system.py

@@ -1,4 +1,5 @@
 from survival import esper
+from survival.components.direction_component import DirectionChangeComponent
 from survival.components.movement_component import MovementComponent
 from survival.components.moving_component import MovingComponent
 from survival.components.position_component import PositionComponent
@@ -18,17 +19,24 @@ class PathfindingMovementSystem(esper.Processor):
             if pathfinding.path is None:
                 pathfinding.path = breadth_first_search(self.game_map, pos.grid_position, pathfinding.target_grid_pos)
 
-            if len(pathfinding.path) < 1:
+            if len(pathfinding.path) < 1 and pathfinding.current_target is None:
                 self.world.remove_component(ent, PathfindingComponent)
                 continue
 
             if self.world.has_component(ent, MovingComponent):
                 continue
 
+            if pathfinding.current_target is None:
                 target = pathfinding.path.pop(0)
+            else:
+                target = pathfinding.current_target
+
             vector = (target[0] - pos.grid_position[0], target[1] - pos.grid_position[1])
             direction = Direction.from_vector(vector)
             if direction != pos.direction:
-                pos.direction = direction
+                pathfinding.current_target = target
+                self.world.add_component(ent, DirectionChangeComponent(direction))
+                continue
 
+            pathfinding.current_target = None
             self.world.add_component(ent, MovingComponent())

survival/world_generator.py

@@ -1,6 +1,7 @@
 from survival import esper
 from survival.systems.camera_system import CameraSystem
 from survival.systems.collision_system import CollisionSystem
+from survival.systems.direction_system import DirectionSystem
 from survival.systems.draw_system import DrawSystem
 from survival.systems.input_system import InputSystem
 from survival.systems.movement_system import MovementSystem
@@ -19,5 +20,6 @@ class WorldGenerator:
         world.add_processor(DrawSystem(camera))
         world.add_processor(TimeSystem())
         world.add_processor(PathfindingMovementSystem(game_map), priority=3)
+        world.add_processor(DirectionSystem())
 
         return world