feat:add new class and use game params model

src/foods.py

@@ -1,4 +1,8 @@
+import math
+import random
+
 import pygame.sprite
+from pygame import Rect
 
 from .env import FoodTypeEnum, FOOD_COLOR_MAP, FOOD_LV1_SIZE, FOOD_LV2_SIZE, FOOD_LV3_SIZE
 from mlgame.view.view_model import create_rect_view_data
@@ -14,8 +18,10 @@ class Food(pygame.sprite.Sprite):
 
         self.rect = self.image.get_rect()
         self.angle = 0
-
-    def update(self) -> None:
+    def set_center_x_and_y(self,x:int,y:int):
+        self.rect.centerx = x
+        self.rect.centery = y
+    def update(self,*args,**kwargs) -> None:
         pass
 
     @property
@@ -38,6 +44,7 @@ class GoodFoodLv1(Food):
         self.color = FOOD_COLOR_MAP[self.type]
         self.score = 1
         self.rect = self.image.get_rect()
+
 class GoodFoodLv2(Food):
     def __init__(self, group):
         super().__init__(group)
@@ -57,7 +64,48 @@ class GoodFoodLv3(Food):
         self.color = FOOD_COLOR_MAP[self.type]
         self.score = 4
         self.rect = self.image.get_rect()
+class Fish(Food):
+    def __init__(self, group):
+        super().__init__(group)
 
+        self.image = pygame.Surface([FOOD_LV1_SIZE, FOOD_LV1_SIZE])
+        self.type = FoodTypeEnum.GOOD_1
+        self.color = FOOD_COLOR_MAP[self.type]
+        self.score = 1
+        self.rect = self.image.get_rect()
+        self._target_x=400
+        self._target_y=400
+        self._direction = 1
+        self._vel=2
+        self._vely=1
+    def update(self,playground:Rect):
+
+
+        if self._direction==1:
+            if self.rect.centerx > self._target_x:
+                #     change
+                self._direction= - self._direction
+                self._target_x = random.randint(playground.left, playground.right)
+                self._target_y = self.rect.centery + random.randint(-20,20)
+                self._vely = self._vel * ((self._target_y - self.rect.centery)/(self._target_x - self.rect.centerx) )
+
+                pass
+            # move to right
+            self.rect.centerx += self._vel
+            self.rect.centery = self.rect.centery +self._vely
+        elif self._direction==-1:
+            if self.rect.centerx < self._target_x:
+                #     change
+                self._direction= - self._direction
+                self._target_x = random.randint(playground.left, playground.right)
+                self._target_y = self.rect.centery + random.randint(-50,50)
+                self.rect.centery = self.rect.centery + self._vely
+
+                pass
+            self.rect.centerx -= self._vel
+            self.rect.centery -= math.sin(self.rect.centerx)
+            pass
+        pass