Add ability to burn papers +Flammable tweaks. (#18955)

Content.Server/Atmos/Components/FlammableComponent.cs

@@ -35,5 +35,26 @@ namespace Content.Server.Atmos.Components
         /// </summary>
         [DataField("flammableCollisionShape")]
         public IPhysShape FlammableCollisionShape = new PhysShapeCircle(0.35f);
+
+        /// <summary>
+        ///     Should the component be set on fire by interactions with isHot entities
+        /// </summary>
+        [ViewVariables(VVAccess.ReadWrite)]
+        [DataField("alwaysCombustible")]
+        public bool AlwaysCombustible = false;
+
+        /// <summary>
+        ///     Can the component anyhow lose its FireStacks?
+        /// </summary>
+        [ViewVariables(VVAccess.ReadWrite)]
+        [DataField("canExtinguish")]
+        public bool CanExtinguish = true;
+
+        /// <summary>
+        ///     How many firestacks should be applied to component when being set on fire?
+        /// </summary>
+        [ViewVariables(VVAccess.ReadWrite)]
+        [DataField("firestacksOnIgnite")]
+        public float FirestacksOnIgnite = 2.0f;
     }
 }