XE1M3:

* base implementation of the blast boots
* first pass on first chunk of map

zscript/actor/blast_boots.zs

@@ -15,9 +15,38 @@
  */
 
 class PowerBlastJump : Powerup {
+	bool blasting;
+	ChexPlayerHGA ply;
+	property blasting: blasting;
+
+	override bool HandlePickup(Inventory item) {
+		bool ok = Super.HandlePickup(item);
+		if (ok) {
+			blasting = false;
+		}
+
+		return ok;
+	}
+
 	override void InitEffect() {
-		let ply = ChexPlayerHGA(Owner);
-		ply.AddZ(72); // double std jump height
+		Super.InitEffect();
+
+		ply = ChexPlayerHGA(Owner);
+		//ply.AddZ(72); // double std jump height
+		blasting = true;
+		ply.GiveInventoryType("InvBlastBoots");
+	}
+
+	override void Tick() {
+		Super.Tick();
+		if (blasting) {
+			ply.AddZ(8);
+		}
+	}
+
+	override void EndEffect() {
+		blasting = false;
+		Super.EndEffect();
 	}
 }
 
@@ -27,6 +56,8 @@ class InvBlastBoots : PowerupGiver {
 		//$Title "Blast Boots"
 		+COUNTITEM
 		Tag "$TAG_BLASTBOOTS";
+		Powerup.Type "PowerBlastJump";
+		Powerup.Duration 10; // ten tics should be enough for the engine to go "oh yeah powerup" while still being an instant-effect
 
 		Inventory.Icon "NULLA0";
 		Inventory.AltHUDIcon "NULLA0";