Enemy roaches are orientable

[koperkapel.git] / koperkapel / gamelib / enemy_roach.py

diff --git a/koperkapel/gamelib/enemy_roach.py b/koperkapel/gamelib/enemy_roach.py
index e36b1765802c4e953f022cdd50a6984824b7122d..2a8438241f3bdc8ac3fa0380a57b28bc1b6e6834 100644 (file)
--- a/koperkapel/gamelib/enemy_roach.py
+++ b/koperkapel/gamelib/enemy_roach.py
@@ -1,12 +1,57 @@
 # Roach utilities
 
+import random
+
+from pgzero.clock import each_tick, unschedule
+from functools import partial
+
 from ..roaches import t32_roaches, WorldRoach
 
 
-def get_enemy_roach():
-    # red
+def get_enemy_roach(level):
     roach = t32_roaches.assemble(WorldRoach(), color=(255, 0, 0, 255))
-    roach.anchor = (0, 0)
+    roach.anchor = (-16, -16)  # this should center them on the tile
     roach.game_pos = (0, 0)
     roach.health = 5
+    roach.angle = 0
+    roach.level = level
+    roach.move = partial(move, roach)
+    roach.last_moved = 0
+    roach.start_pos = None
+    each_tick(roach.move)
     return roach
+
+
+def move(roach, dt):
+    """Enemy roach move method"""
+    roach.last_moved += dt
+    if not roach in roach.level.enemies:
+        unschedule(roach.move)
+        return
+    if roach.last_moved > 0.5:
+        if not roach.start_pos:
+            roach.start_pos = roach.game_pos
+        roach.last_moved = 0
+        attempt = 0
+        while attempt < 4:
+            attempt += 1
+            dx = random.randint(-1, 1)
+            dy = random.randint(-1, 1)
+            if abs(roach.game_pos[0] + dx - roach.start_pos[0]) > 2:
+                continue
+            if abs(roach.game_pos[1] + dy - roach.start_pos[1]) > 2:
+                continue
+            if roach.level.can_walk(roach.game_pos[0] + dx, roach.game_pos[1] + dy, 'floor'):
+                enemy = roach.level.get_enemy(roach.game_pos[0] + dx, roach.game_pos[1] + dy)
+                if enemy and enemy is not roach:
+                    continue
+                roach.game_pos = (roach.game_pos[0] + dx, roach.game_pos[1] + dy)
+                if dy == 1:
+                    roach.angle = 180
+                elif dy == -1:
+                    roach.angle = 0
+                elif dx == 1:
+                    roach.angle = 270
+                else:
+                    roach.angle = 90
+                break