SetEventObstacle

Introduced

3.0

Description

Sets up an obstacle as part of a particle event.

Scripting Syntax

    SetEventObstacle( Target, Source )

Parameters

Parameter | Type | Description
Target | Property | Event on which the obstacle will be added. Default Value: Selected event property.
Source | X3DObject | Obstacle to add. Default Value: Selected event property.

Examples

JScript Example

    /*
       This example demonstrates how to set up an event obstacle using the SetEventObstacle command
    */
    NewScene( null, false );

    // Add a particle cloud with a disc emitter and use its primitive to get the particle type
    var pcloud = CreateParticleCloud( "", "Disc" )(0);
    var ptype = pcloud.ActivePrimitive.ParticleTypes(0);

    // Add a grid that will serve as its obstacle with some animation on it that moves it
    // across the x-axis (positive to negative)
    var grid_obs = CreatePrim( "Grid", "MeshSurface" );
    grid_obs.ulength = 4; grid_obs.vlength = 4;  // Shrink it in half
    grid_obs.posy.Value = 5.0; // Translate it up in y to 5
    var xvals = new Array( /*keys, values*/
              0,  5,
              29, 2,
              54, 0,
              79, -3,
              98, -7
              );
    grid_obs.posx.AddFCurve2( xvals, siDefaultFCurve );

    // Add an event using the grid as obstacle which will cause the particles to disappear
    var pevent = AddParticleEvent( ptype )(0)(0);
    pevent.Name = "PEvent_Obstacle_Demo";
    SetEventObstacle( pevent, grid_obs );
    pevent.Parameters("EventAction").Value = 1;

    // When it plays back you can see how the particles disappear under the grid as it
    // moves across the screen
    var myViewPort = Application.Desktop.ActiveLayout.Views( "vm" );
    myViewPort.SetAttributeValue( "layout", "maximize:b" );
    FrameAll();
    PlayForwardsFromStart();

See Also

AddParticleEmitter | AddParticleForce | AddParticleObstacle | ApplyParticleShader
CreateParticleCloud | CreateParticleType | SetParticleType | Particle
ParticleType | ParticleCloud | ParticleCloudPrimitive |

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