Swap Dash Trigger from deskilln's Expert map

Author: maddie480

Ahorn/triggers/swapDashTrigger.jl

@@ -0,0 +1,14 @@
+module SpringCollab2020SwapDashTrigger
+
+using ..Ahorn, Maple
+
+@mapdef Trigger "SpringCollab2020/SwapDashTrigger" SwapDashTrigger(x::Integer, y::Integer, width::Integer=Maple.defaultTriggerWidth, height::Integer=Maple.defaultTriggerHeight)
+
+const placements = Ahorn.PlacementDict(
+    "Swap Dash (Spring Collab 2020)" => Ahorn.EntityPlacement(
+        SwapDashTrigger,
+        "rectangle"
+    )
+)
+
+end

Triggers/SwapDashTrigger.cs

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+using Celeste.Mod.Entities;
+using Microsoft.Xna.Framework;
+
+namespace Celeste.Mod.SpringCollab2020.Triggers {
+    [CustomEntity("SpringCollab2020/SwapDashTrigger")]
+    class SwapDashTrigger : Trigger {
+        private float enterX;
+
+        public SwapDashTrigger(EntityData data, Vector2 offset)
+            : base(data, offset) {
+        }
+
+        public override void OnEnter(Player player) {
+            enterX = player.X;
+        }
+
+        public override void OnLeave(Player player) {
+            Session session = SceneAs<Level>().Session;
+            if (player.MaxDashes == 1 && (!(enterX + 16f >= player.X) || !(enterX - 16f <= player.X))) {
+                session.Inventory.Dashes = 2;
+            } else if (player.MaxDashes == 2 && (!(enterX + 16f >= player.X) || !(enterX - 16f <= player.X))) {
+                session.Inventory.Dashes = 1;
+                if (player.Dashes == 2) {
+                    player.Dashes = 1;
+                }
+            }
+        }
+    }
+}