From ec6ffa9c6a998de15e5f856756a6efb04c00418b Mon Sep 17 00:00:00 2001
From: Simon Cross <hodgestar@gmail.com>
Date: Sat, 5 Mar 2016 23:34:08 +0200
Subject: [PATCH] Bullets move.

---
 koperkapel/gamelib/level.py |  8 ++++++++
 koperkapel/scenes/level.py  | 16 +++++++++++++++-
 2 files changed, 23 insertions(+), 1 deletion(-)

diff --git a/koperkapel/gamelib/level.py b/koperkapel/gamelib/level.py
index 34487af..cfbf45e 100644
--- a/koperkapel/gamelib/level.py
+++ b/koperkapel/gamelib/level.py
@@ -46,6 +46,14 @@ class Level(object):
     def can_crawl(self, x, y, layer):
         return 'crawl' in self.tiles[y][x][layer]['behaviour']
 
+    def can_bullet(self, x, y, layer):
+        if self.tiles[y][x][layer]['behaviour']:
+            for door in self.doors:
+                if (x, y) == door.game_pos and door.is_closed():
+                    return False
+            return True
+        return False
+
     def is_keypad(self, x, y):
         for keypad in self.keypads:
             if (x, y) == keypad.game_pos:
diff --git a/koperkapel/scenes/level.py b/koperkapel/scenes/level.py
index 5db95bb..b17beb6 100644
--- a/koperkapel/scenes/level.py
+++ b/koperkapel/scenes/level.py
@@ -199,8 +199,21 @@ class GameLevelScene(BaseLevelScene):
         if len(self._bullets) >= 10:
             return
         bullet.game_pos = pos
+        bullet.game_dp = dp
+        bullet.dt = 0
+        bullet.level_layer = self._level_layer
         self._bullets.add(bullet)
 
+    def _update_bullet(self, bullet, dt):
+        bullet.dt += dt
+        if bullet.dt > 0.1:
+            bullet.dt = 0
+            bullet.game_pos = pos = (
+                bullet.game_pos[0] + bullet.game_dp[0],
+                bullet.game_pos[1] + bullet.game_dp[1])
+            if not self._level.can_bullet(pos[0], pos[1], bullet.level_layer):
+                self._bullets.remove(bullet)
+
     @defer_to_update
     def _fire_weapon(self, world):
         weapon = weapon_by_name(world.weapons.current)
@@ -235,7 +248,8 @@ class GameLevelScene(BaseLevelScene):
         for enemy in self._enemies:
             enemy.pos = self.calc_offset(
                 enemy.game_pos[0] * TILE_SIZE, enemy.game_pos[1] * TILE_SIZE)
-        for bullet in self._bullets:
+        for bullet in list(self._bullets):
+            self._update_bullet(bullet, dt)
             bullet.pos = self.calc_offset(
                 bullet.game_pos[0] * TILE_SIZE + (TILE_SIZE // 2),
                 bullet.game_pos[1] * TILE_SIZE + (TILE_SIZE // 2))
-- 
2.34.1