Move mission generation code into game.

Operation has been renamed MissionGenerator and is no longer a static
class.

game/missiongenerator/visualsgenerator.py

@@ -0,0 +1,113 @@
+from __future__ import annotations
+
+import random
+from typing import TYPE_CHECKING, Any
+
+from dcs.mission import Mission
+from dcs.unit import Static
+from dcs.unittype import StaticType
+
+if TYPE_CHECKING:
+    from game import Game
+
+from .frontlineconflictdescription import FrontLineConflictDescription
+
+
+class MarkerSmoke(StaticType):
+    id = "big_smoke"
+    category = "Effects"
+    name = "big_smoke"
+    shape_name = 5  # type: ignore
+    rate = 0.1  # type: ignore
+
+
+class Smoke(StaticType):
+    id = "big_smoke"
+    category = "Effects"
+    name = "big_smoke"
+    shape_name = 2  # type: ignore
+    rate = 1
+
+
+class BigSmoke(StaticType):
+    id = "big_smoke"
+    category = "Effects"
+    name = "big_smoke"
+    shape_name = 3  # type: ignore
+    rate = 1
+
+
+class MassiveSmoke(StaticType):
+    id = "big_smoke"
+    category = "Effects"
+    name = "big_smoke"
+    shape_name = 4  # type: ignore
+    rate = 1
+
+
+def __monkey_static_dict(self: Static) -> dict[str, Any]:
+    global __original_static_dict
+
+    d = __original_static_dict(self)
+    if self.type == "big_smoke":
+        d["effectPreset"] = self.shape_name
+        d["effectTransparency"] = self.rate
+    return d
+
+
+__original_static_dict = Static.dict
+Static.dict = __monkey_static_dict  # type: ignore
+
+FRONT_SMOKE_RANDOM_SPREAD = 4000
+FRONT_SMOKE_TYPE_CHANCES = {
+    2: MassiveSmoke,
+    15: BigSmoke,
+    30: Smoke,
+    100: Smoke,
+}
+
+
+class VisualsGenerator:
+    def __init__(self, mission: Mission, game: Game) -> None:
+        self.mission = mission
+        self.game = game
+
+    def _generate_frontline_smokes(self) -> None:
+        for front_line in self.game.theater.conflicts():
+            from_cp = front_line.blue_cp
+            to_cp = front_line.red_cp
+            if from_cp.is_global or to_cp.is_global:
+                continue
+
+            (
+                plane_start,
+                heading,
+                distance,
+            ) = FrontLineConflictDescription.frontline_vector(
+                front_line, self.game.theater
+            )
+            if not plane_start:
+                continue
+
+            for offset in range(0, distance, self.game.settings.perf_smoke_spacing):
+                position = plane_start.point_from_heading(heading.degrees, offset)
+
+                for k, v in FRONT_SMOKE_TYPE_CHANCES.items():
+                    if random.randint(0, 100) <= k:
+                        pos = position.random_point_within(
+                            FRONT_SMOKE_RANDOM_SPREAD, FRONT_SMOKE_RANDOM_SPREAD
+                        )
+                        if not self.game.theater.is_on_land(pos):
+                            break
+
+                        self.mission.static_group(
+                            self.mission.country(self.game.red.country_name),
+                            "",
+                            _type=v,
+                            position=pos,
+                        )
+                        break
+
+    def generate(self) -> None:
+        if self.game.settings.perf_smoke_gen:
+            self._generate_frontline_smokes()