fixed create event participant position

src/core/draw/event.typ

@@ -16,7 +16,7 @@
   } else if evt.event == "create" {
     ctx.y -= CREATE-OFFSET
     entry.at(1) = ctx.y
-    (par.draw)(par)
+    (par.draw)(par, y: ctx.y)
   } else if evt.event == "destroy" {
   } else {
     panic("Unknown event '" + evt.event + "'")