Add basic mechanics, like shooting and some basic textures

game/sprites.py

@@ -0,0 +1,37 @@
+import arcade, random, time
+
+from utils.constants import PLAYER_SPEED, BULLET_SPEED, BULLET_RADIUS
+from utils.preload import player_texture, enemy_texture
+
+class Bullet(arcade.Sprite):
+    def __init__(self, x, y, direction_y):
+        super().__init__(arcade.texture.make_circle_texture(BULLET_RADIUS, arcade.color.YELLOW), center_x=x, center_y=y)
+
+        self.direction_y = direction_y
+
+    def update(self):
+        self.center_y += self.direction_y * BULLET_SPEED
+
+class Enemy(arcade.Sprite):
+    def __init__(self, x, y):
+        super().__init__(enemy_texture, center_x=x, center_y=y)
+
+class Player(arcade.Sprite): # Not actually the player
+    def __init__(self, x, y):
+        super().__init__(player_texture, center_x=x, center_y=y)
+
+        self.last_target_change = time.perf_counter()
+        self.target = None
+
+    def update(self, enemies):
+        if not enemies:
+            return
+
+        if not self.target or time.perf_counter() - self.last_target_change >= 1:
+            self.last_target_change = time.perf_counter()
+            self.target = random.choice(enemies)
+
+        if self.target.center_x > self.center_x:
+            self.center_x += PLAYER_SPEED
+        elif self.target.center_x < self.center_x:
+            self.center_x -= PLAYER_SPEED