objective c - Change UIImageview shape to match shape -

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i have had around forums , cannot find answer question makes sense me..so hoping can shed light on this.

i have cloud , object , when these make contact game on (really basic explanation of game) - problem have cloud, being in shape of..well..a cloud, , image view being rectangle means other object makes contact , runs method game on before, visually, has made contact.

please me! :-)


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