Initial commit: OpenRA game engine

Fork from OpenRA/OpenRA with one-click launch script (start-ra.cmd)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

mods/cnc/maps/the-tiberium-strain/rules.yaml

@@ -0,0 +1,89 @@
+World:
+	LuaScript:
+		Scripts: campaign.lua, utils.lua, the-tiberium-strain.lua
+	MissionData:
+		Briefing: briefing
+		StartVideo: nodsweep.vqa
+		LossVideo: nodflees.vqa
+		WinVideo: desolat.vqa
+	ScriptLobbyDropdown@difficulty:
+		ID: difficulty
+		Label: dropdown-difficulty.label
+		Description: dropdown-difficulty.description
+		Values:
+			easy: options-difficulty.easy
+			normal: options-difficulty.normal
+			hard: options-difficulty.hard
+		Default: normal
+		Locked: false
+
+Player:
+	EnemyWatcher:
+	PlayerResources:
+		DefaultCash: 0
+
+^Bridge:
+	DamageMultiplier@INVULNERABLE:
+		Modifier: 0
+
+^CivBuilding:
+	Targetable:
+		RequiresCondition: !force-fire-required
+	Targetable@FORCENEEDED:
+		TargetTypes: Ground, Structure
+		RequiresForceFire: true
+		RequiresCondition: force-fire-required
+	GrantConditionOnPrerequisite:
+		Condition: force-fire-required
+		Prerequisites: village-targetable-switch
+
+# Spawned on Easy difficulty.
+VillageTargetableSwitch:
+	ProvidesPrerequisite:
+		Prerequisite: village-targetable-switch
+
+^CivInfantry:
+	AnnounceOnSeen:
+	MustBeDestroyed:
+	ScriptTags:
+
+E1:
+	ScriptTags:
+
+E2:
+	ScriptTags:
+
+FTNK:
+	GrantConditionOnTerrain@SKIPBRIDGEHUSK:
+		Condition: skip-bridge-husk
+		TerrainTypes: Bridge
+	SpawnActorOnDeath:
+		RequiresCondition: !skip-bridge-husk
+
+JEEP:
+	GrantConditionOnTerrain@SKIPBRIDGEHUSK:
+		Condition: skip-bridge-husk
+		TerrainTypes: Bridge
+	SpawnActorOnDeath:
+		RequiresCondition: !skip-bridge-husk
+	ScriptTags:
+
+MTNK:
+	GrantConditionOnTerrain@SKIPBRIDGEHUSK:
+		Condition: skip-bridge-husk
+		TerrainTypes: Bridge
+	SpawnActorOnDeath:
+		RequiresCondition: !skip-bridge-husk
+	ScriptTags:
+
+BIO:
+	# The original BIO is fragile and Nod may take heavy losses on the path here.
+	Health:
+		HP: 70000
+	Armor:
+		Type: Light
+
+BIO.Husk:
+	RevealsShroud:
+		Range: 2c0
+		ValidRelationships: Enemy