X-Git-Url: https://git.ctpug.org.za/?a=blobdiff_plain;f=koperkapel%2Fscenes%2Flevel.py;h=ea32bc1eaa63107850cb9c3b82e79f22cc8a63e1;hb=11394cc68ca2f312c93706c52bb02a0e0999b01f;hp=c37b3e339c62a399e49e2cbb918750643e95b88c;hpb=624bc861c82eb50d403d81a1d638807dc1cf46cb;p=koperkapel.git

diff --git a/koperkapel/scenes/level.py b/koperkapel/scenes/level.py
index c37b3e3..ea32bc1 100644
--- a/koperkapel/scenes/level.py
+++ b/koperkapel/scenes/level.py
@@ -2,43 +2,335 @@
 
 from pgzero.constants import keys
 from pygame import Surface
+import pygame.locals as pgl
 from ..loaders.levelloader import levels
-from .base import Scene, ChangeSceneEvent
+from .base import (
+    Scene, ChangeSceneEvent, MoveViewportEvent, WorldEvent, defer_to_update)
 from ..constants import TILE_SIZE, WIDTH, HEIGHT
+from ..gamelib.items import clone_old_item
+from ..roaches import build_roach
+from ..vehicles.base import Vehicle
+from ..weapons import weapon_by_name
 
 
-class LevelScene(Scene):
+class BaseLevelScene(Scene):
     """ Level scene. """
 
-    def __init__(self, level_name):
-        self._level_data = levels.load(level_name)
-        self._tiles = self._level_data['tiles']
-        self._surface = None
-        self._render()
+    def __init__(self):
+        super().__init__()
+        self._level = None
 
-    def _render(self):
+    def enter(self, world):
+        self._level = levels.load(world.level.name)
+        self._tiles = self._level.tiles
+        self._level_layer = 'floor'
+        self._surfaces = {}
+        self._overlay = {}
+        for layer in ['floor', 'tunnels']:
+            self._surfaces[layer] = self._render(layer)
+        self._overlay = self._surfaces['floor'].copy()
+        self._doors = self.actors.add_layer("doors", level=9)
+        self._keypads = self.actors.add_layer("keypads", level=8)
+        # These are already Actors
+        for door in self._level.doors:
+            self._doors.add(door)
+        for keypad in self._level.keypads:
+            self._keypads.add(keypad)
+
+    def _render(self, layer):
         # We cache the rendered surface to avoid doing a large number
         # of blits each frame, as that introduces a large performance
         # overhead.
-        self._surface = Surface((len(self._tiles[0]) * TILE_SIZE,
-                                 len(self._tiles) * TILE_SIZE))
+        surface = Surface((len(self._tiles[0]) * TILE_SIZE,
+                           len(self._tiles) * TILE_SIZE))
+        layer_key = '%s image' % layer
         for y, row in enumerate(self._tiles):
             for x, tile in enumerate(row):
                 pos = (x * TILE_SIZE, y * TILE_SIZE)
-                if 'image' not in tile:
+                if layer_key not in tile:
                     # Skip broken tiles for now
                     continue
-                self._surface.blit(tile['image'], pos)
+                surface.blit(tile[layer_key], pos)
+        return surface.convert_alpha()
+
+    def update(self, world, engine, dt):
+        """Fix the door and keypad positions"""
+        super().update(world, engine, dt)
+        for door in self._doors:
+            door.pos = self.calc_offset(
+                door.game_pos[0] * TILE_SIZE, door.game_pos[1] * TILE_SIZE)
+        for keypad in self._keypads:
+            keypad.pos = self.calc_offset(
+                keypad.game_pos[0] * TILE_SIZE, keypad.game_pos[1] * TILE_SIZE)
 
-    def draw(self, screen, viewport):
+    def draw(self, screen):
         screen.clear()
         # Viewport is the position of the screen relative to the
         # surface. We need the position of the surface relative to
         # the screen for the blit, so this conversion
-        screen_pos = -viewport[0], -viewport[1]
-        screen.blit(self._surface, screen_pos)
+        viewport = self.viewport
+        screen.surface.blit(self._surfaces[self._level_layer], (0, 0),
+                            area=(viewport[0], viewport[1], WIDTH, HEIGHT))
+        if self._level_layer != 'floor':
+            screen.surface.blit(
+                self._overlay, (0, 0),
+                area=(viewport[0], viewport[1], WIDTH, HEIGHT),
+                special_flags=pgl.BLEND_MULT)
+        self.actors.draw(screen)
 
     def on_key_down(self, key, mod, unicode):
         if key == keys.ESCAPE:
             from .menu import MenuScene
             return [ChangeSceneEvent(MenuScene())]
+
+
+class GameLevelScene(BaseLevelScene):
+
+    def enter(self, world):
+        self._held_keys = set()
+        if self._level is not None:
+            for generator in self._generators:
+                generator.unpause()
+            return
+        super().enter(world)
+        self._roaches = self.actors.add_layer("roaches", level=10)
+        self._friends = self.actors.add_layer("friendly roaches", level=9)
+        self._items = self.actors.add_layer("items", level=9)
+        self._generators = self.actors.add_layer("enemy generators", level=8)
+        self._enemies = self.actors.add_layer("enemies", level=7)
+        self._vehicle = Vehicle.current(world)
+        self._mode = 'walk'
+        self._angle = 0  # up
+        self._angle_dp = (0, -1)  # up
+        self._init_items()
+        self._init_friendly_roaches()
+        self._init_generators()
+        self._key_rate = 0.2
+        self._last_key_down = 0
+        return self._init_roaches(world)
+
+    def _init_items(self):
+        for item in self._level.items:
+            self._items.add(item)
+
+    def _init_friendly_roaches(self):
+        for friend in self._level.friends:
+            self._friends.add(friend)
+
+    def exit(self, world):
+        for generator in self._generators:
+            # We don't want these running while we're on other levels, but we
+            # don't want to delete them here either (because of the vehicle
+            # management view)
+            generator.pause()
+
+    def _init_generators(self):
+        for generator in self._level.enemy_generators:
+            self._generators.add(generator)
+            generator.unpause()
+
+    def _init_roaches(self, world):
+        x, y = self._level.start_pos
+        self._level_layer = 'floor'
+        self._avatar = self._vehicle.get_avatar(world)
+        self._set_pos(x, y)
+        self._avatar.pos = (WIDTH // 2, HEIGHT // 2)
+        self._roaches.add(self._avatar)
+        # Fix viewport offset
+        return [
+            MoveViewportEvent((
+                x * TILE_SIZE - WIDTH // 2,
+                y * TILE_SIZE - HEIGHT // 2))]
+
+    def _set_pos(self, x, y):
+        self._player_pos = (x, y)
+        # print('At ', (x, y))
+
+    def _can_move(self, x, y):
+        if self._mode == 'walk':
+            if not self._level.enemy_at(x, y):
+                return self._level.can_walk(x, y, self._level_layer)
+            return False
+        elif self._mode == 'fly':
+            return self._level.can_fly(x, y, self._level_layer)
+        elif self._mode == 'crawl':
+            return self._level.can_crawl(x, y, self._level_layer)
+
+    def _set_angle(self, angle, dp):
+        self._angle = angle
+        self._angle_dp = dp
+        self._avatar.angle = angle
+
+    @defer_to_update
+    def _vehicle_changed(self, world):
+        self._roaches.remove(self._avatar)
+        self._vehicle = Vehicle.current(world)
+        self._avatar = self._vehicle.get_avatar(world)
+        self._avatar.pos = (WIDTH // 2, HEIGHT // 2)
+        self._roaches.add(self._avatar)
+        self._set_angle(self._angle, self._angle_dp)
+
+    @defer_to_update
+    def _add_roach(self, world):
+        world.roaches.append(build_roach(world))
+        self._vehicle_changed()
+
+    @defer_to_update
+    def _gain_item(self, world, item):
+        if item.item_type == "serum":
+            world.serums.append(item.item_data["serum"])
+        elif item.item_type == "weapon":
+            old_weapon = world.weapons.current
+            world.weapons.current = item.item_data["weapon"]
+            if old_weapon != "spit":
+                clone = clone_old_item(item, weapon=old_weapon)
+                self._level.items.append(clone)
+                self._items.add(clone)
+        self._vehicle_changed()
+
+    def _hit_enemy(self, enemy, weapon):
+        enemy.health -= weapon.damage
+        if enemy.health <= 0:
+            self._level.remove_enemy(enemy)
+            self._enemies.remove(enemy)
+
+    @defer_to_update
+    def _fire_weapon(self, world):
+        weapon = weapon_by_name(world.weapons.current)
+        weapon.play_sound()
+        if weapon.bullet_range > 0:
+            # ranged, fire bullet
+            print("Pew.")
+        else:
+            # melee
+            pos, dp = self._player_pos, self._angle_dp
+            pos = (pos[0] + dp[0], pos[1] + dp[1])
+            enemy = self._level.get_enemy(pos[0], pos[1])
+            if enemy:
+                self._hit_enemy(enemy, weapon)
+
+    @defer_to_update
+    def _change_vehicle(self, world):
+        vehicle = Vehicle.random()
+        world.vehicles.current = vehicle
+        self._vehicle_changed()
+
+    def update(self, world, engine, dt):
+        super().update(world, engine, dt)
+        events = world.pop_events()
+        for friend in self._friends:
+            friend.pos = self.calc_offset(
+                friend.game_pos[0] * TILE_SIZE, friend.game_pos[1] * TILE_SIZE)
+        for item in self._items:
+            item.pos = self.calc_offset(
+                item.game_pos[0] * TILE_SIZE, item.game_pos[1] * TILE_SIZE)
+        self._check_enemies()
+        for enemy in self._enemies:
+            enemy.pos = self.calc_offset(
+                enemy.game_pos[0] * TILE_SIZE, enemy.game_pos[1] * TILE_SIZE)
+        more = self._check_held_keys(dt)
+        if more:
+            events.extend(more)
+        return events
+
+    def _check_enemies(self):
+        if len(self._level.enemies) != len(self._enemies):
+            # New nemy has spawned
+            for enemy in self._level.enemies:
+                if enemy not in self._enemies:
+                    self._enemies.add(enemy)
+
+    def _check_held_keys(self, dt):
+        for key in self._held_keys:
+            self._last_key_down += dt
+            if key in (keys.DOWN, keys.UP, keys.LEFT, keys.RIGHT):
+                return self._movement_key(key, dt)
+            elif key == keys.X:
+                return self._fire_key(dt)
+
+    def _movement_key(self, key, dt):
+        x, y = self._player_pos
+        for k, dp, angle in (
+            (keys.DOWN, (0, 1), 180),
+            (keys.UP, (0, -1), 0),
+            (keys.LEFT, (-1, 0), 90),
+            (keys.RIGHT, (1, 0), -90),
+        ):
+            if key == k:
+                if (self._angle == angle and
+                        self._last_key_down > self._key_rate):
+                    nx, ny = x + dp[0], y + dp[1]
+                    if self._can_move(nx, ny):
+                        self._set_pos(nx, ny)
+                        offset = (TILE_SIZE * dp[0], TILE_SIZE * dp[1])
+                        self._set_angle(angle, dp)
+                        self._last_key_down = 0
+                        return [MoveViewportEvent(offset)]
+                else:
+                    # just turn
+                    self._set_angle(angle, dp)
+
+    def _activate_key(self):
+        x, y = self._player_pos
+        if self._level.is_grate(x, y):
+            if (self._level_layer == 'floor' and
+                    self._level.can_crawl(x, y, 'floor')):
+                if self._level.can_crawl(x, y, 'tunnels'):
+                    self._level_layer = 'tunnels'
+                    self._mode = 'crawl'
+            elif self._level.can_crawl(x, y, 'floor'):
+                # Must be in the tunnels already
+                self._level_layer = 'floor'
+                self._mode = 'walk'
+        elif self._level.is_keypad(x, y):
+            self._level.press_keypad(x, y, self._roaches)
+        elif self._level.friend_at(x, y):
+            friend = self._level.friend_at(x, y)
+            self._level.remove_friend(friend)
+            self._friends.remove(friend)
+            self._add_roach()
+        elif self._level.item_at(x, y):
+            item = self._level.item_at(x, y)
+            self._level.remove_item(item)
+            self._items.remove(item)
+            self._gain_item(item)
+        elif self._level.is_exit(x, y):
+            next_level = self._level.get_exit_level()
+            return [
+                WorldEvent('set', {'level.name': next_level}),
+                ChangeSceneEvent(GameLevelScene())]
+
+    def _fire_key(self, dt):
+        if self._last_key_down > self._key_rate:
+            self._last_key_down = 0
+            self._fire_weapon()
+
+    def _vehicle_management_key(self):
+        from .roach_management import RoachesScene
+        return [ChangeSceneEvent(RoachesScene(level_scene=self))]
+
+    def on_key_down(self, key, mod, unicode):
+        x, y = self._player_pos
+        if key in (keys.DOWN, keys.UP, keys.LEFT, keys.RIGHT):
+            self._held_keys.clear()
+            self._held_keys.add(key)
+            # We do this so pressing the key has an instant effect, and can
+            # then be held
+            self._last_key_down = self._key_rate + 0.01
+            return self._movement_key(key, 0.01)
+        elif key == keys.C:
+            return self._activate_key()
+        elif key == keys.X:
+            self._held_keys.clear()
+            self._held_keys.add(key)
+            self._last_key_down = self._key_rate + 0.01
+            return self._fire_key(0.01)
+        elif key == keys.V:
+            return self._change_vehicle()
+        elif key == keys.Z:
+            return self._vehicle_management_key()
+        return super(GameLevelScene, self).on_key_down(key, mod, unicode)
+
+    def on_key_up(self, key, mode):
+        self._held_keys.discard(key)
+        self._last_key_down = 0