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Calling Spells with SetCursor

CDotaBaseAbility:OnSpellStart in combination with CDotaBaseNPC:SetCursorCastTarget and CDOTABaseNPC:SetCursorPosition are used to "Call" spells.

This is a powerful way to interact with Valve's spells in particular. This allows you to:

  • Activate hidden abilities
  • Ignore turn-restrictions
  • Ignore castpoint or cooldown
  • Ignore any other cruft associated with the formal spell-casting methods

This is easy to use, easy to configure and easy to think about. Here is an example that casts Tether on a hidden dummy unit, activated by a datadriven spell:

local tether = caster:FindAbilityByName("trollsandelves_hidden_tether")