Click mesh to trigger action

Discussion in 'Unity Support' started by Rhuantavan, Apr 28, 2006.

  1. Rhuantavan

    Rhuantavan

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    Feb 23, 2006
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    Hi! My first question:

    I have a mesh object and I'd like to trigger a certain action when I click on it with a mouse. It is not a gui object, but a regular 3d object. What do I have to do?

    I wrote this script and attached it to the object I want to be clickable, but the event doesn't execute:

    Code (csharp):
    1.  
    2. function OnMouseDown() {
    3.     var lid = GameObject.Find("Lid");
    4.     lid.hingeJoint.useLimits = false;
    5. }
    6.  
    Thanks.
  2. Joachim_Ante

    Joachim_Ante

    Unity Technologies

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    1. Add a print statement so you know when it actually executes

    2. For a 3d mesh to receive the event it needs a mesh collider. Just use the menu Component -> Physics -> Mesh Collider
  3. Rhuantavan

    Rhuantavan

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    Feb 23, 2006
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    1. I have, it doesn't execute.

    2. I have the meshcollider attached. I have also tried ticking "is trigger" as I think this should be set?

    btw, I am getting a "Actor::updateMassFromShapes: Compute mesh inertia tensor failed for one of the actor's mesh shapes! Please change mesh geometry or supply a tensor manually!" error. Still this doesn't affect my problem, but I would still love to know what I am doing wrong.
  4. Bampf

    Bampf

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    Oct 21, 2005
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    I may be remembering this wrong, but I think I got this error with an old version of Unity when I tried to import a totally flat 2D object I'd created in Blender. Adding a little depth to the object would probably have fixed it, although I think I ended up removing that model entirely in the end.
  5. Rhuantavan

    Rhuantavan

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    In fact the model was created in blender... but I've spent so much time making it that I don't really want to remove it...
  6. Joachim_Ante

    Joachim_Ante

    Unity Technologies

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    If you set the collider to be a trigger you will not get mouse down events.
  7. Rhuantavan

    Rhuantavan

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    Feb 23, 2006
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    Hm, I've tried it both ways, trigger or not it doesn't execute. I think I'll just set up the scene from scratch, maybe it will help. Thanks for now.