Overhaul sand worm rendering and attacking.
This commit is contained in:
Paul Chote
@@ -19,22 +19,22 @@ using OpenRA.Traits;
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namespace OpenRA.Mods.D2k.Activities
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{
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enum AttackState { Burrowed, EmergingAboveGround, ReturningUnderground }
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enum AttackState { Uninitialized, Burrowed, Attacking }
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class SwallowActor : Activity
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{
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const int NearEnough = 1;
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readonly CPos location;
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readonly Target target;
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readonly Sandworm sandworm;
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readonly UpgradeManager manager;
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readonly WeaponInfo weapon;
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readonly WithSpriteBody withSpriteBody;
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readonly RadarPings radarPings;
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readonly AttackSwallow swallow;
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readonly IPositionable positionable;
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int countdown;
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CPos burrowLocation;
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AttackState stance;
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public SwallowActor(Actor self, Target target, WeaponInfo weapon)
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@@ -44,128 +44,133 @@ namespace OpenRA.Mods.D2k.Activities
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sandworm = self.Trait<Sandworm>();
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positionable = self.Trait<Mobile>();
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swallow = self.Trait<AttackSwallow>();
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withSpriteBody = self.Trait<WithSpriteBody>();
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manager = self.Trait<UpgradeManager>();
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radarPings = self.World.WorldActor.TraitOrDefault<RadarPings>();
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countdown = swallow.Info.AttackTime;
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withSpriteBody.DefaultAnimation.ReplaceAnim(sandworm.Info.BurrowedSequence);
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stance = AttackState.Burrowed;
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location = target.Actor.Location;
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}
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bool WormAttack(Actor worm)
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bool AttackTargets(Actor self, IEnumerable<Actor> targets)
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{
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var targetLocation = target.Actor.Location;
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// The target has moved too far away
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if ((location - targetLocation).Length > NearEnough)
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return false;
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var lunch = worm.World.ActorMap.GetActorsAt(targetLocation)
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.Where(t => !t.Equals(worm) && weapon.IsValidAgainst(t, worm));
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if (!lunch.Any())
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return false;
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stance = AttackState.EmergingAboveGround;
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sandworm.IsAttacking = true;
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foreach (var actor in lunch)
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foreach (var t in targets)
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{
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var actor1 = actor; // loop variable in closure hazard
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var target = t; // loop variable in closure hazard
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actor.World.AddFrameEndTask(_ =>
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self.World.AddFrameEndTask(_ =>
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{
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// Don't use Kill() because we don't want any of its side-effects (husks, etc)
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target.Dispose();
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// Harvester insurance
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if (target.Info.HasTraitInfo<HarvesterInfo>())
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{
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actor1.Dispose();
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// Harvester insurance
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if (!actor1.Info.HasTraitInfo<HarvesterInfo>())
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return;
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var insurance = actor1.Owner.PlayerActor.TraitOrDefault<HarvesterInsurance>();
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var insurance = target.Owner.PlayerActor.TraitOrDefault<HarvesterInsurance>();
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if (insurance != null)
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actor1.World.AddFrameEndTask(__ => insurance.TryActivate());
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});
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self.World.AddFrameEndTask(__ => insurance.TryActivate());
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}
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});
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}
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positionable.SetPosition(worm, targetLocation);
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positionable.SetPosition(self, targetLocation);
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var attackPosition = worm.CenterPosition;
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var affectedPlayers = lunch.Select(x => x.Owner).Distinct().ToList();
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PlayAttack(worm, attackPosition, affectedPlayers);
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foreach (var notify in worm.TraitsImplementing<INotifyAttack>())
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notify.Attacking(worm, target, null, null);
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return true;
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}
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// List because IEnumerable gets evaluated too late.
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void PlayAttack(Actor self, WPos attackPosition, List<Player> affectedPlayers)
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{
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withSpriteBody.PlayCustomAnimation(self, sandworm.Info.MouthSequence);
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var attackPosition = self.CenterPosition;
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var affectedPlayers = targets.Select(x => x.Owner).Distinct().ToList();
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Game.Sound.Play(swallow.Info.WormAttackSound, self.CenterPosition);
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Game.RunAfterDelay(1000, () =>
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{
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if (Game.IsCurrentWorld(self.World))
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foreach (var affectedPlayer in affectedPlayers)
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NotifyPlayer(affectedPlayer, attackPosition);
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if (!Game.IsCurrentWorld(self.World))
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return;
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foreach (var player in affectedPlayers)
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{
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Game.Sound.PlayNotification(player.World.Map.Rules, player, "Speech", swallow.Info.WormAttackNotification, player.Faction.InternalName);
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if (player == player.World.RenderPlayer)
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radarPings.Add(() => true, attackPosition, Color.Red, 50);
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}
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});
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}
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void NotifyPlayer(Player player, WPos location)
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{
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Game.Sound.PlayNotification(player.World.Map.Rules, player, "Speech", swallow.Info.WormAttackNotification, player.Faction.InternalName);
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foreach (var notify in self.TraitsImplementing<INotifyAttack>())
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notify.Attacking(self, target, null, null);
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if (player == player.World.RenderPlayer)
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radarPings.Add(() => true, location, Color.Red, 50);
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return true;
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}
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public override Activity Tick(Actor self)
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{
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if (countdown > 0)
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switch (stance)
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{
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countdown--;
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return this;
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}
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case AttackState.Uninitialized:
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GrantUpgrades(self);
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stance = AttackState.Burrowed;
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countdown = swallow.Info.AttackDelay;
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burrowLocation = self.Location;
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break;
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case AttackState.Burrowed:
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if (--countdown > 0)
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return this;
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// Wait for the worm to get back underground
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if (stance == AttackState.ReturningUnderground)
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{
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sandworm.IsAttacking = false;
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var targetLocation = target.Actor.Location;
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// There is a chance that the worm would just go away after attacking
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if (self.World.SharedRandom.Next() % 100 <= sandworm.Info.ChanceToDisappear)
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{
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self.CancelActivity();
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self.World.AddFrameEndTask(w => self.Kill(self));
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}
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else
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withSpriteBody.DefaultAnimation.ReplaceAnim(sandworm.Info.IdleSequence);
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// The target has moved too far away
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if ((burrowLocation - targetLocation).Length > NearEnough)
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{
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RevokeUpgrades(self);
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return NextActivity;
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}
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return NextActivity;
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}
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// The target reached solid ground
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if (!positionable.CanEnterCell(targetLocation, null, false))
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{
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RevokeUpgrades(self);
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return NextActivity;
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}
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// Wait for the worm to get in position
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if (stance == AttackState.Burrowed)
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{
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// This is so that the worm cancels an attack against a target that has reached solid rock
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if (!positionable.CanEnterCell(target.Actor.Location, null, false))
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var targets = self.World.ActorMap.GetActorsAt(targetLocation)
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.Where(t => !t.Equals(self) && weapon.IsValidAgainst(t, self));
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if (!targets.Any())
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{
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RevokeUpgrades(self);
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return NextActivity;
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}
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stance = AttackState.Attacking;
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countdown = swallow.Info.ReturnDelay;
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sandworm.IsAttacking = true;
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AttackTargets(self, targets);
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break;
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case AttackState.Attacking:
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if (--countdown > 0)
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return this;
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sandworm.IsAttacking = false;
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// There is a chance that the worm would just go away after attacking
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if (self.World.SharedRandom.Next(100) <= sandworm.Info.ChanceToDisappear)
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{
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self.CancelActivity();
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self.World.AddFrameEndTask(w => self.Dispose());
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}
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RevokeUpgrades(self);
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return NextActivity;
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if (!WormAttack(self))
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{
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withSpriteBody.DefaultAnimation.ReplaceAnim(sandworm.Info.IdleSequence);
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return NextActivity;
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}
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countdown = swallow.Info.ReturnTime;
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stance = AttackState.ReturningUnderground;
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}
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return this;
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}
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void GrantUpgrades(Actor self)
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{
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foreach (var up in swallow.Info.AttackingUpgrades)
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manager.GrantUpgrade(self, up, this);
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}
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void RevokeUpgrades(Actor self)
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{
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foreach (var up in swallow.Info.AttackingUpgrades)
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manager.RevokeUpgrade(self, up, this);
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}
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}
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}
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