Merge pull request #10243 from pchote/fix-neutrino-bullets

Fix collision detection for Missiles and Bullets.

OpenRA.Mods.Common/Effects/AreaBeam.cs

@@ -54,7 +54,7 @@ namespace OpenRA.Mods.Common.Effects
 		public readonly bool Blockable = false;
 
 		[Desc("Extra search radius beyond beam width. Required to ensure affecting actors with large health radius.")]
-		public readonly WDist TargetExtraSearchRadius = new WDist(2048);
+		public readonly WDist TargetExtraSearchRadius = new WDist(1536);
 
 		[Desc("Should the beam be visuall rendered? False = Beam is invisible.")]
 		public readonly bool RenderBeam = true;

OpenRA.Mods.Common/Effects/Bullet.cs

@@ -50,6 +50,12 @@ namespace OpenRA.Mods.Common.Effects
 		[Desc("Is this blocked by actors with BlocksProjectiles trait.")]
 		public readonly bool Blockable = true;
 
+		[Desc("Width of projectile (used for finding blocking actors).")]
+		public readonly WDist Width = new WDist(1);
+
+		[Desc("Extra search radius beyond path for blocking actors.")]
+		public readonly WDist TargetExtraSearchRadius = new WDist(1536);
+
 		[Desc("Arc in WAngles, two values indicate variable arc.")]
 		public readonly WAngle[] Angle = { WAngle.Zero };
 
@@ -156,8 +162,19 @@ namespace OpenRA.Mods.Common.Effects
 			if (anim != null)
 				anim.Tick();
 
+			var lastPos = pos;
 			pos = WPos.LerpQuadratic(args.Source, target, angle, ticks, length);
 
+			// Check for walls or other blocking obstacles
+			var shouldExplode = false;
+			WPos blockedPos;
+			if (info.Blockable && BlocksProjectiles.AnyBlockingActorsBetween(world, lastPos, pos, info.Width,
+				info.TargetExtraSearchRadius, out blockedPos))
+			{
+				pos = blockedPos;
+				shouldExplode = true;
+			}
+
 			if (!string.IsNullOrEmpty(info.Trail) && --smokeTicks < 0)
 			{
 				var delayedPos = WPos.LerpQuadratic(args.Source, target, angle, ticks - info.TrailDelay, length);
@@ -168,8 +185,8 @@ namespace OpenRA.Mods.Common.Effects
 			if (info.ContrailLength > 0)
 				contrail.Update(pos);
 
-			var shouldExplode = ticks++ >= length // Flight length reached/exceeded
-				|| (info.Blockable && BlocksProjectiles.AnyBlockingActorAt(world, pos)); // Hit a wall or other blocking obstacle
+			// Flight length reached / exceeded
+			shouldExplode |= ticks++ >= length;
 
 			if (shouldExplode)
 				Explode(world);

OpenRA.Mods.Common/Effects/Missile.cs

@@ -58,6 +58,12 @@ namespace OpenRA.Mods.Common.Effects
 		[Desc("Is the missile blocked by actors with BlocksProjectiles: trait.")]
 		public readonly bool Blockable = true;
 
+		[Desc("Width of projectile (used for finding blocking actors).")]
+		public readonly WDist Width = new WDist(1);
+
+		[Desc("Extra search radius beyond path for blocking actors.")]
+		public readonly WDist TargetExtraSearchRadius = new WDist(1536);
+
 		[Desc("Maximum offset at the maximum range")]
 		public readonly WDist Inaccuracy = WDist.Zero;
 
@@ -773,8 +779,19 @@ namespace OpenRA.Mods.Common.Effects
 			renderFacing = WAngle.ArcTan(move.Z - move.Y, move.X).Angle / 4 - 64;
 
 			// Move the missile
+			var lastPos = pos;
 			pos += move;
 
+			// Check for walls or other blocking obstacles
+			var shouldExplode = false;
+			WPos blockedPos;
+			if (info.Blockable && BlocksProjectiles.AnyBlockingActorsBetween(world, lastPos, pos, info.Width,
+				info.TargetExtraSearchRadius, out blockedPos))
+			{
+				pos = blockedPos;
+				shouldExplode = true;
+			}
+
 			// Create the smoke trail effect
 			if (!string.IsNullOrEmpty(info.TrailImage) && --ticksToNextSmoke < 0 && (state != States.Freefall || info.TrailWhenDeactivated))
 			{
@@ -786,14 +803,10 @@ namespace OpenRA.Mods.Common.Effects
 				contrail.Update(pos);
 
 			var cell = world.Map.CellContaining(pos);
-
-			// NOTE: High speeds might cause the missile to miss the target or fly through obstacles
-			//       In that case, big moves should probably be decomposed into multiple smaller ones with hit checks
 			var height = world.Map.DistanceAboveTerrain(pos);
-			var shouldExplode = (height.Length < 0) // Hit the ground
-				|| (relTarDist < info.CloseEnough.Length) // Within range
+			shouldExplode |= height.Length < 0 // Hit the ground
+				|| relTarDist < info.CloseEnough.Length // Within range
 				|| (info.ExplodeWhenEmpty && info.RangeLimit != 0 && ticks > info.RangeLimit) // Ran out of fuel
-				|| (info.Blockable && BlocksProjectiles.AnyBlockingActorAt(world, pos)) // Hit a wall or other blocking obstacle
 				|| !world.Map.Contains(cell) // This also avoids an IndexOutOfRangeException in GetTerrainInfo below.
 				|| (!string.IsNullOrEmpty(info.BoundToTerrainType) && world.Map.GetTerrainInfo(cell).Type != info.BoundToTerrainType) // Hit incompatible terrain
 				|| (height.Length < info.AirburstAltitude.Length && relTarHorDist < info.CloseEnough.Length); // Airburst

OpenRA.Mods.Common/Lint/CheckTargetHealthRadius.cs

@@ -10,6 +10,8 @@
 
 using System;
 using System.Linq;
+using OpenRA.GameRules;
+using OpenRA.Mods.Common.Effects;
 using OpenRA.Mods.Common.Traits;
 using OpenRA.Mods.Common.Warheads;
 using OpenRA.Traits;
@@ -48,6 +50,21 @@ namespace OpenRA.Mods.Common.Lint
 							emitError("Actor type `{0}` has a health radius exceeding the victim scan radius of a warhead on `{1}`!"
 								.F(actorInfo.Key, weaponInfo.Key));
 					}
+
+					var bullet = weaponInfo.Value.Projectile as BulletInfo;
+					var missile = weaponInfo.Value.Projectile as MissileInfo;
+					var areabeam = weaponInfo.Value.Projectile as AreaBeamInfo;
+
+					if (bullet == null && missile == null && areabeam == null)
+						continue;
+
+					var targetExtraSearchRadius = bullet != null ? bullet.TargetExtraSearchRadius :
+						missile != null ? missile.TargetExtraSearchRadius :
+						areabeam != null ? areabeam.TargetExtraSearchRadius : WDist.Zero;
+
+					if (healthTraits.Where(x => x.Shape.OuterRadius.Length > targetExtraSearchRadius.Length).Any())
+						emitError("Actor type `{0}` has a health radius exceeding the victim scan radius of the projectile on `{1}`!"
+							.F(actorInfo.Key, weaponInfo.Key));
 				}
 			}
 		}

mods/cnc/rules/civilian.yaml

@@ -276,8 +276,6 @@ ARCO.Husk:
 
 BARB:
 	Inherits: ^Wall
-	Health:
-		HP: 100
 	Armor:
 		Type: Light
 	Tooltip:
@@ -292,8 +290,6 @@ BARB:
 
 WOOD:
 	Inherits: ^Wall
-	Health:
-		HP: 100
 	Armor:
 		Type: Wood
 	Tooltip:

mods/cnc/rules/defaults.yaml

@@ -579,6 +579,11 @@
 	Guardable:
 	FrozenUnderFog:
 	ScriptTriggers:
+	Health:
+		HP: 100
+		Shape: Rectangle
+			TopLeft: -512, -512
+			BottomRight: 512, 512
 
 ^Tree:
 	Inherits@1: ^SpriteActor

mods/cnc/rules/structures.yaml

@@ -855,8 +855,6 @@ SBAG:
 		BuildPaletteOrder: 20
 		Prerequisites: fact
 		Queue: Defence.GDI
-	Health:
-		HP: 100
 	Armor:
 		Type: Light
 	LineBuild:
@@ -880,8 +878,6 @@ CYCL:
 		BuildPaletteOrder: 20
 		Prerequisites: fact
 		Queue: Defence.Nod
-	Health:
-		HP: 100
 	Armor:
 		Type: Light
 	LineBuild:

mods/d2k/rules/structures.yaml

@@ -613,6 +613,9 @@ wall:
 		TerrainTypes: Rock, Concrete
 	Health:
 		HP: 2000
+		Shape: Rectangle
+			TopLeft: -512, -512
+			BottomRight: 512, 512
 	Armor:
 		Type: none
 	RevealsShroud:

mods/ra/rules/defaults.yaml

@@ -501,6 +501,11 @@
 	Guardable:
 	FrozenUnderFog:
 	GpsRemoveFrozenActor:
+	Health:
+		HP: 100
+		Shape: Rectangle
+			TopLeft: -512, -512
+			BottomRight: 512, 512
 
 ^TechBuilding:
 	Inherits: ^BasicBuilding

mods/ra/rules/structures.yaml

@@ -1664,8 +1664,6 @@ CYCL:
 	Inherits: ^Wall
 	Tooltip:
 		Name: Chain-Link Barrier
-	Health:
-		HP: 100
 	Armor:
 		Type: Wood
 	LineBuild:
@@ -1679,8 +1677,6 @@ BARB:
 	Inherits: ^Wall
 	Tooltip:
 		Name: Barbed-Wire Fence
-	Health:
-		HP: 100
 	Armor:
 		Type: Wood
 	LineBuild:
@@ -1694,8 +1690,6 @@ WOOD:
 	Inherits: ^Wall
 	Tooltip:
 		Name: Wooden Fence
-	Health:
-		HP: 100
 	Armor:
 		Type: Wood
 	LineBuild:

mods/ts/rules/defaults.yaml

@@ -216,6 +216,9 @@
 		InitialDelay: 0
 		CloakDelay: 90
 		IsPlayerPalette: true
+	Health:
+		Shape: Circle
+			Radius: 363
 
 ^BuildingPlug:
 	AlwaysVisible: