Adds weapons (#48)

* Adds weapons

- Adds melee weapons
- Adds projectile weapons
- Adds hitscan weapons (like lasers)

* Adds a separate sprite for projectile weapons

Content.Server/GameObjects/Components/Weapon/Melee/MeleeWeaponComponent.cs

@@ -0,0 +1,52 @@
+using System;
+using SS14.Shared.GameObjects;
+using SS14.Shared.GameObjects.Serialization;
+using Content.Server.GameObjects.EntitySystems;
+using SS14.Shared.Interfaces.GameObjects;
+using SS14.Shared.Map;
+using SS14.Shared.IoC;
+using SS14.Server.GameObjects;
+using SS14.Shared.Maths;
+using SS14.Server.Interfaces.GameObjects;
+using SS14.Shared.Interfaces.Timing;
+using SS14.Shared.GameObjects.EntitySystemMessages;
+
+namespace Content.Server.GameObjects.Components.Weapon.Melee
+{
+    public class MeleeWeaponComponent : Component, IAfterAttack
+    {
+        public override string Name => "MeleeWeapon";
+
+        public int Damage = 1;
+        public float Range = 1;
+        public float ArcWidth = 90;
+
+        public override void ExposeData(EntitySerializer serializer)
+        {
+            base.ExposeData(serializer);
+
+            serializer.DataField(ref Damage, "damage", 5);
+            serializer.DataField(ref Range, "damage", 1);
+            serializer.DataField(ref ArcWidth, "damage", 90);
+
+        }
+
+        void IAfterAttack.Afterattack(IEntity user, LocalCoordinates clicklocation)
+        {
+            var location = user.GetComponent<TransformComponent>().LocalPosition;
+            var angle = new Angle(clicklocation.ToWorld().Position - location.ToWorld().Position);
+            var entities = IoCManager.Resolve<IServerEntityManager>().GetEntitiesInArc(user.GetComponent<TransformComponent>().LocalPosition, Range, angle, ArcWidth);
+
+            foreach(var entity in entities)
+            {
+                if (!entity.GetComponent<TransformComponent>().IsMapTransform || entity == user)
+                    continue;
+                
+                if(entity.TryGetComponent(out DamageableComponent damagecomponent))
+                {
+                    damagecomponent.TakeDamage(DamageType.Brute, Damage);
+                }
+            }
+        }
+    }
+}