add burning

OpenRA.Mods.RA/Burns.cs

@@ -0,0 +1,42 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using OpenRA.Traits;
+using OpenRA.Graphics;
+
+namespace OpenRA.Mods.RA
+{
+	class BurnsInfo : TraitInfo<Burns>
+	{
+		public readonly string Anim = "1";
+		public readonly int Damage = 1;
+		public readonly int Interval = 8;
+	}
+
+	class Burns : ITick
+	{
+		[Sync]
+		int ticks;
+		bool isSetup;
+
+		public void Tick(Actor self)
+		{
+			if (!isSetup)
+			{
+				isSetup = true;
+
+				var anim = new Animation("fire", () => 0);
+				anim.PlayRepeating(self.Info.Traits.Get<BurnsInfo>().Anim);
+				self.traits.Get<RenderSimple>().anims.Add("fire",
+					new RenderSimple.AnimationWithOffset(anim, () => new float2(0, -3), null));
+			}
+
+			if (--ticks <= 0)
+			{
+				self.InflictDamage(self, self.Info.Traits.Get<BurnsInfo>().Damage, null);
+				ticks = self.Info.Traits.Get<BurnsInfo>().Interval;
+			}
+		}
+	}
+}

OpenRA.Mods.RA/OpenRA.Mods.RA.csproj

@@ -54,6 +54,7 @@
     <Compile Include="Activities\Steal.cs" />
     <Compile Include="Activities\Teleport.cs" />
     <Compile Include="AirstrikePower.cs" />
+    <Compile Include="Burns.cs" />
     <Compile Include="C4Demolition.cs" />
     <Compile Include="CarpetBomb.cs" />
     <Compile Include="Chronoshiftable.cs" />