Add attribute system with core stats and gameplay components

GameCore/Movement/JumpSystem.cs

@@ -0,0 +1,32 @@
+using GameCore.Attributes;
+using GameCore.ECS;
+using GameCore.ECS.Interfaces;
+using GameCore.Input;
+using GameCore.Physics;
+using Attribute = GameCore.Attributes.Attribute;
+
+namespace GameCore.Movement;
+
+public class JumpSystem : ISystem
+{
+    public void Update(World world, float deltaTime)
+    {
+        var entities = world.GetEntitiesWith<InputStateComponent>();
+        foreach (var entity in entities)
+        {
+            var input = world.GetComponent<InputStateComponent>(entity);
+            var velocity = world.GetComponent<VelocityComponent>(entity);
+            var attributes = world.GetComponent<AttributeComponent>(entity);
+            var characterState = world.GetComponent<CharacterStateComponent>(entity);
+
+            if (input == null || velocity == null || attributes == null || characterState == null)
+                continue;
+
+            if (input.IsJumping && characterState.IsOnFloor)
+            {
+                var jumpHeight = attributes.GetValue(Attribute.JumpHeight);
+                velocity.DesiredVelocity.Y = (float)System.Math.Sqrt(2f * world.Config.GravityStrength * jumpHeight);
+            }
+        }
+    }
+}