Closes #4463. Added Shrapnel, as well as variable velocity and arc for bullets

OpenRA.Mods.D2k/OpenRA.Mods.D2k.csproj

@@ -76,6 +76,7 @@
     <Reference Include="System.Drawing" />
   </ItemGroup>
   <ItemGroup>
+    <Compile Include="ThrowsShrapnel.cs" />
     <Compile Include="Widgets\Logic\D2kInstallFromCDLogic.cs" />
     <Compile Include="Render\WithCrumbleOverlay.cs" />
     <Compile Include="PaletteFromR8.cs" />
@@ -120,7 +121,5 @@ cd "$(SolutionDir)"</PostBuildEvent>
       <Install>true</Install>
     </BootstrapperPackage>
   </ItemGroup>
-  <ItemGroup>
-    <Folder Include="Render\" />
-  </ItemGroup>
+  <ItemGroup />
 </Project>

OpenRA.Mods.D2k/ThrowsShrapnel.cs

@@ -0,0 +1,79 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2014 The OpenRA Developers (see AUTHORS)
+ * This file is part of OpenRA, which is free software. It is made
+ * available to you under the terms of the GNU General Public License
+ * as published by the Free Software Foundation. For more information,
+ * see COPYING.
+ */
+#endregion
+
+using OpenRA.GameRules;
+using OpenRA.FileFormats;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using OpenRA.Traits;
+
+namespace OpenRA.Mods.D2k
+{
+	public class ThrowsShrapnelInfo : ITraitInfo
+	{
+		[WeaponReference]
+		public string[] Weapons = { };
+		public int[] Pieces = { 3, 10 };
+		public WRange[] Range = { WRange.FromCells(2), WRange.FromCells(5) };
+		public object Create(ActorInitializer actor) { return new ThrowsShrapnel(this); }
+	}
+
+	class ThrowsShrapnel : INotifyKilled
+	{
+		readonly ThrowsShrapnelInfo info;
+
+		public ThrowsShrapnel(ThrowsShrapnelInfo info) 
+		{
+			this.info = info;
+		}
+
+		public void Killed(Actor self, AttackInfo attack)
+		{
+			foreach (var name in info.Weapons)
+			{
+				var wep = Rules.Weapons[name];
+				var pieces = self.World.SharedRandom.Next(info.Pieces[0], info.Pieces[1]);
+				var range = self.World.SharedRandom.Next(info.Range[0].Range, info.Range[1].Range);
+
+				for (var i = 0; pieces > i; i++)
+				{
+					var rotation = WRot.FromFacing(self.World.SharedRandom.Next(1024));
+					var args = new ProjectileArgs
+					{
+						Weapon = wep,
+						Facing = self.World.SharedRandom.Next(-1,255),
+						FirepowerModifier = self.TraitsImplementing<IFirepowerModifier>()
+							.Select(a => a.GetFirepowerModifier())
+							.Product(),
+
+						Source = self.CenterPosition,
+						SourceActor = self,
+						PassiveTarget = self.CenterPosition + new WVec(range, 0, 0).Rotate(rotation)
+					};
+
+					self.World.AddFrameEndTask(x =>
+					{
+						if (args.Weapon.Projectile != null)
+						{
+							var projectile = args.Weapon.Projectile.Create(args);
+							if (projectile != null)
+								self.World.Add(projectile);
+
+							if (args.Weapon.Report != null && args.Weapon.Report.Any())
+								Sound.Play(args.Weapon.Report.Random(self.World.SharedRandom), self.CenterPosition);
+						}
+					});
+				}
+			}
+		}
+	}
+}

OpenRA.Mods.RA/Effects/Bullet.cs

@@ -1,6 +1,6 @@
 #region Copyright & License Information
 /*
- * Copyright 2007-2013 The OpenRA Developers (see AUTHORS)
+ * Copyright 2007-2014 The OpenRA Developers (see AUTHORS)
  * This file is part of OpenRA, which is free software. It is made
  * available to you under the terms of the GNU General Public License
  * as published by the Free Software Foundation. For more information,
@@ -22,8 +22,8 @@ namespace OpenRA.Mods.RA.Effects
 {
 	public class BulletInfo : IProjectileInfo
 	{
-		[Desc("Projectile speed in WRange / tick")]
-		public readonly WRange Speed = new WRange(17);
+		[Desc("Projectile speed in WRange / tick, two values indicate variable velocity")]
+		public readonly WRange[] Speed = { new WRange(17) };
 		public readonly string Trail = null;
 		[Desc("Maximum offset at the maximum range")]
 		public readonly WRange Inaccuracy = WRange.Zero;
@@ -31,7 +31,8 @@ namespace OpenRA.Mods.RA.Effects
 		[Desc("Check for whether an actor with Wall: trait blocks fire")]
 		public readonly bool High = false;
 		public readonly bool Shadow = false;
-		public readonly WAngle Angle = WAngle.Zero;
+		[Desc("Arc in WAngles, two values indicate variable arc.")]
+		public readonly WAngle[] Angle = { WAngle.Zero };
 		public readonly int TrailInterval = 2;
 		public readonly int TrailDelay = 1;
 		public readonly int ContrailLength = 0;
@@ -46,6 +47,8 @@ namespace OpenRA.Mods.RA.Effects
 	{
 		readonly BulletInfo info;
 		readonly ProjectileArgs args;
+		[Sync] readonly WAngle angle;
+		[Sync] readonly WRange speed;
 
 		ContrailRenderable trail;
 		Animation anim;
@@ -63,6 +66,17 @@ namespace OpenRA.Mods.RA.Effects
 			this.args = args;
 			this.pos = args.Source;
 
+			if (info.Angle.Length > 1 && info.Speed.Length > 1)
+			{
+				angle = new WAngle(args.SourceActor.World.SharedRandom.Next(info.Angle[0].Angle, info.Angle[1].Angle));
+				speed = new WRange(args.SourceActor.World.SharedRandom.Next(info.Speed[0].Range, info.Speed[1].Range));
+			}
+			else
+			{
+				angle = info.Angle[0];
+				speed = info.Speed[0];
+			}
+
 			target = args.PassiveTarget;
 			if (info.Inaccuracy.Range > 0)
 			{
@@ -71,7 +85,7 @@ namespace OpenRA.Mods.RA.Effects
 			}
 
 			facing = Traits.Util.GetFacing(target - pos, 0);
-			length = Math.Max((target - pos).Length / info.Speed.Range, 1);
+			length = Math.Max((target - pos).Length / speed.Range, 1);
 
 			if (info.Image != null)
 			{
@@ -91,7 +105,7 @@ namespace OpenRA.Mods.RA.Effects
 		int GetEffectiveFacing()
 		{
 			var at = (float)ticks / (length - 1);
-			var attitude = info.Angle.Tan() * (1 - 2 * at) / (4 * 1024);
+			var attitude = angle.Tan() * (1 - 2 * at) / (4 * 1024);
 
 			var u = (facing % 128) / 128f;
 			var scale = 512 * u * (1 - u);
@@ -106,11 +120,11 @@ namespace OpenRA.Mods.RA.Effects
 			if (anim != null)
 				anim.Tick();
 
-			pos = WPos.LerpQuadratic(args.Source, target, info.Angle, ticks, length);
+			pos = WPos.LerpQuadratic(args.Source, target, angle, ticks, length);
 
 			if (info.Trail != null && --smokeTicks < 0)
 			{
-				var delayedPos = WPos.LerpQuadratic(args.Source, target, info.Angle, ticks - info.TrailDelay, length);
+				var delayedPos = WPos.LerpQuadratic(args.Source, target, angle, ticks - info.TrailDelay, length);
 				world.AddFrameEndTask(w => w.Add(new Smoke(w, delayedPos, info.Trail)));
 				smokeTicks = info.TrailInterval;
 			}

mods/d2k/rules/defaults.yaml

@@ -266,3 +266,7 @@
 	LuaScriptEvents:
 	Demolishable:
 	DamagedWithoutFoundation:
+	ThrowsShrapnel:
+		Weapons: shrapnel
+		Pieces: 3, 7
+		Range: 2c0, 5c0

mods/d2k/rules/structures.yaml

@@ -428,6 +428,10 @@ CONCRETEB:
 	Sellable:
 	Guardable:
 	BodyOrientation:
+	ThrowsShrapnel:
+		Weapons: shrapnel
+		Pieces: 3, 7
+		Range: 2c0, 5c0
 
 WALL:
 	Inherits: ^WALL

mods/d2k/weapons.yaml

@@ -624,4 +624,27 @@ Grenade:
 Weathering:
 	ROF: 100
 	Warhead:
-		Damage: 5
+		Damage: 5
+		
+Shrapnel:
+	ROF: 60
+	Range: 4c0
+	Report:
+	Projectile: Bullet
+		Speed: 50, 125
+		High: true
+		Angle: 91, 264
+		Inaccuracy: 416
+		Image: bombs
+	Warhead:
+		Spread: 192
+		Versus:
+			None: 50%
+			Wood: 100%
+			Light: 25%
+			Heavy: 5%
+		Explosion: med_explosion
+		InfDeath: 3
+		SmudgeType: SandCrater
+		Damage: 60
+		ImpactSound: EXPLLG5.WAV