add bullets

src/game/game.py

@@ -2,6 +2,42 @@
 import pyxel
 
 
+class Bullet:
+
+    def __init__(self, cords, rotate):
+        self.cords = cords
+        self.rotate = rotate
+
+    @classmethod
+    def from_player(cls, player):
+        x, y = player.cords
+        w = player.WIDTH_SPRITE
+        h = player.HEIGHT_SPRITE
+        cords = [x, y]
+        return cls(cords, player.rotate)
+
+    def update(self):
+        if self.rotate == 'u':
+            self.cords[1] -= 15
+        elif self.rotate == 'd':
+            self.cords[1] += 15
+        elif self.rotate == 'l':
+            self.cords[0] -= 15
+        elif self.rotate == 'r':
+            self.cords[0] += 15
+
+    def is_alive(self):
+        x, y = self.cords
+        return (
+            x > 0 and x < 256
+            and y > 0 and y < 256
+        )
+
+    def draw(self):
+        x, y = self.cords
+        pyxel.circ(x, y, 2, 10)
+
+
 class Player:
     WIDTH_SPRITE = 32
     HEIGHT_SPRITE = 32
@@ -26,19 +62,19 @@ def draw(self):
         pyxel.blt(x, y, 0, u, 0, w, h, 11)
 
     def move_up(self):
-        self.cords[1] -= 10
+        self.cords[1] -= 5
         self.rotate = 'u'
 
     def move_down(self):
-        self.cords[1] += 10
+        self.cords[1] += 5
         self.rotate = 'd'
 
     def move_left(self):
-        self.cords[0] -= 10
+        self.cords[0] -= 5
         self.rotate = 'l'
 
     def move_right(self):
-        self.cords[0] += 10
+        self.cords[0] += 5
         self.rotate = 'r'
 
 
@@ -52,23 +88,42 @@ def setup(self):
         pyxel.image(0).load(0, 0, "assets.png")
 
         self.player = Player([128, 128])
+        self.bullets = []
 
     def update(self):
         self.keyboard()
+        self.bullets = self.update_objs(self.bullets)
+
+    def update_objs(self, objs):
+        survived_objs = []
+        for obj in objs:
+            obj.update()
+            if obj.is_alive():
+                survived_objs.append(obj)
+
+        return survived_objs
 
     def keyboard(self):
         if pyxel.btnp(pyxel.KEY_Q):
             pyxel.quit()
-        elif pyxel.btn(pyxel.KEY_UP):
+            return
+        if pyxel.btn(pyxel.KEY_UP):
             self.player.move_up()
-        elif pyxel.btn(pyxel.KEY_DOWN):
+        if pyxel.btn(pyxel.KEY_DOWN):
             self.player.move_down()
-        elif pyxel.btn(pyxel.KEY_LEFT):
+        if pyxel.btn(pyxel.KEY_LEFT):
             self.player.move_left()
-        elif pyxel.btn(pyxel.KEY_RIGHT):
+        if pyxel.btn(pyxel.KEY_RIGHT):
             self.player.move_right()
+        if pyxel.btnp(pyxel.KEY_SPACE, 0, 10):
+            if len(self.bullets) > 3:
+                return
+            bullet = Bullet.from_player(self.player)
+            self.bullets.append(bullet)
 
     def draw(self):
         pyxel.cls(0)
         pyxel.text(0, 0, "Score: %d" % self.player.score, 7)
         self.player.draw()
+        for bullet in self.bullets:
+            bullet.draw()