Simple Magic Spellbook System (#7823)

Co-authored-by: metalgearsloth <comedian_vs_clown@hotmail.com>

Content.Server/Magic/Events/InstantSpawnSpellEvent.cs

@@ -0,0 +1,42 @@
+using Content.Shared.Actions;
+using Robust.Shared.Prototypes;
+using Robust.Shared.Serialization.TypeSerializers.Implementations.Custom.Prototype;
+
+namespace Content.Server.Magic.Events;
+
+public sealed class InstantSpawnSpellEvent : InstantActionEvent
+{
+    /// <summary>
+    /// What entity should be spawned.
+    /// </summary>
+    [DataField("prototype", required: true, customTypeSerializer: typeof(PrototypeIdSerializer<EntityPrototype>))]
+    public string Prototype = default!;
+
+    [ViewVariables, DataField("preventCollide")]
+    public bool PreventCollideWithCaster = true;
+
+    /// <summary>
+    /// Gets the targeted spawn positons; may lead to multiple entities being spawned.
+    /// </summary>
+    [DataField("posData")] public MagicSpawnData Pos = new TargetCasterPos();
+}
+
+[ImplicitDataDefinitionForInheritors]
+public abstract class MagicSpawnData
+{
+
+}
+
+/// <summary>
+/// Spawns 1 at the caster's feet.
+/// </summary>
+public sealed class TargetCasterPos : MagicSpawnData {}
+
+/// <summary>
+/// Targets the 3 tiles in front of the caster.
+/// </summary>
+public sealed class TargetInFront : MagicSpawnData
+{
+    [DataField("width")]
+    public int Width = 3;
+}