ECS Ammo (#5862)

2021-12-23 15:46:43 +11:00
parent 00ec491f6f
commit 573e3a1744
9 changed files with 184 additions and 138 deletions
--- a/Content.Server/Weapon/Ranged/GunSystem.Ammo.cs
+++ b/Content.Server/Weapon/Ranged/GunSystem.Ammo.cs
@@ -0,0 +1,95 @@
+using System;
+using Content.Server.Weapon.Ranged.Ammunition.Components;
+using Content.Shared.Examine;
+using Content.Shared.Weapons.Ranged.Barrels.Components;
+using Robust.Shared.GameObjects;
+using Robust.Shared.Localization;
+using Robust.Shared.Map;
+using Robust.Shared.Maths;
+
+namespace Content.Server.Weapon.Ranged;
+
+public sealed partial class GunSystem
+{
+    private void OnAmmoExamine(EntityUid uid, AmmoComponent component, ExaminedEvent args)
+    {
+        var text = Loc.GetString("ammo-component-on-examine",("caliber", component.Caliber));
+        args.PushMarkup(text);
+    }
+
+    public EntityUid? TakeBullet(AmmoComponent component, EntityCoordinates spawnAt)
+    {
+        if (component.AmmoIsProjectile)
+        {
+            return component.Owner;
+        }
+
+        if (component.Spent)
+        {
+            return null;
+        }
+
+        component.Spent = true;
+
+        if (TryComp(component.Owner, out AppearanceComponent? appearanceComponent))
+        {
+            appearanceComponent.SetData(AmmoVisuals.Spent, true);
+        }
+
+        var entity = EntityManager.SpawnEntity(component.ProjectileId, spawnAt);
+
+        return entity;
+    }
+
+    public void MuzzleFlash(EntityUid entity, AmmoComponent component, Angle angle)
+    {
+        if (component.MuzzleFlashSprite == null)
+        {
+            return;
+        }
+
+        var time = _gameTiming.CurTime;
+        var deathTime = time + TimeSpan.FromMilliseconds(200);
+        // Offset the sprite so it actually looks like it's coming from the gun
+        var offset = new Vector2(0.0f, -0.5f);
+
+        var message = new EffectSystemMessage
+        {
+            EffectSprite = component.MuzzleFlashSprite.ToString(),
+            Born = time,
+            DeathTime = deathTime,
+            AttachedEntityUid = entity,
+            AttachedOffset = offset,
+            //Rotated from east facing
+            Rotation = -MathF.PI / 2f,
+            Color = Vector4.Multiply(new Vector4(255, 255, 255, 255), 1.0f),
+            ColorDelta = new Vector4(0, 0, 0, -1500f),
+            Shaded = false
+        };
+
+        /* TODO: Fix rotation when shooting sideways. This was the closest I got but still had issues.
+         * var time = _gameTiming.CurTime;
+        var deathTime = time + TimeSpan.FromMilliseconds(200);
+        var entityRotation = EntityManager.GetComponent<TransformComponent>(entity).WorldRotation;
+        var localAngle = entityRotation - (angle + MathF.PI / 2f);
+        // Offset the sprite so it actually looks like it's coming from the gun
+        var offset = localAngle.RotateVec(new Vector2(0.0f, -0.5f));
+
+        var message = new EffectSystemMessage
+        {
+            EffectSprite = component.MuzzleFlashSprite.ToString(),
+            Born = time,
+            DeathTime = deathTime,
+            AttachedEntityUid = entity,
+            AttachedOffset = offset,
+            //Rotated from east facing
+            Rotation = (float) (localAngle - MathF.PI / 2),
+            Color = Vector4.Multiply(new Vector4(255, 255, 255, 255), 1.0f),
+            ColorDelta = new Vector4(0, 0, 0, -1500f),
+            Shaded = false
+        };
+         */
+
+        _effects.CreateParticle(message);
+    }
+}