static bool FindCustomSnappingPoints(Vector3 startWorldPoint, Vector3 currentWorldPoint, Grid worldSlideGrid, int contextIndex, List <Vector3> foundWorldspacePoints)
{
if (!s_SnappingContext.TryGetValue(contextIndex, out var snappingContext))
{
s_SnappingContext[contextIndex] = snappingContext = new SnappingContext();
}
snappingContext.Clear();
s_DrawSurfaceSnapEvents.Clear();
s_DrawEdgeSnapEvents.Clear();
s_DrawVertexSnapEvents.Clear();
var edgeSnappingActive = Snapping.EdgeSnappingActive;
var vertexSnappingActive = Snapping.VertexSnappingActive;
var surfaceSnappingActive = Snapping.SurfaceSnappingActive;
if (!edgeSnappingActive &&
!vertexSnappingActive &&
!surfaceSnappingActive)
{
return(false);
}
var surfaceSnapEvents = surfaceSnappingActive ? snappingContext.s_AllSurfaceSnapEvents : null;
var edgeSnapEvents = edgeSnappingActive ? snappingContext.s_AllEdgeSnapEvents : null;
var vertexSnapEvents = vertexSnappingActive ? snappingContext.s_AllVertexSnapEvents : null;
var selection = Selection.gameObjects;
FindClosestSnapPointsToPlane(selection, startWorldPoint, currentWorldPoint, worldSlideGrid, kArbitrarySnapDistance, surfaceSnapEvents, edgeSnapEvents, vertexSnapEvents);
snappingContext.CollectAllSnapPoints(foundWorldspacePoints);
return(true);
}
const float kArbitrarySnapDistance = 5; // TODO: use fixed step when no grid snapping, otherwise grid step size
static bool FindCustomSnappingRayPoints(Vector3 worldRayStart, Vector3 worldRayDirection, int contextIndex, List <Vector3> foundWorldspacePoints)
{
if (!s_SnappingContext.TryGetValue(contextIndex, out var snappingContext))
{
s_SnappingContext[contextIndex] = snappingContext = new SnappingContext();
}
snappingContext.Clear();
s_DrawSurfaceSnapEvents.Clear();
s_DrawEdgeSnapEvents.Clear();
s_DrawVertexSnapEvents.Clear();
var edgeSnappingActive = Snapping.EdgeSnappingActive;
var vertexSnappingActive = Snapping.VertexSnappingActive;
var surfaceSnappingActive = Snapping.SurfaceSnappingActive;
if (!edgeSnappingActive && !vertexSnappingActive && !surfaceSnappingActive)
{
return(false);
}
var selection = Selection.gameObjects;
var step = worldRayDirection * kArbitrarySnapDistance;
FindSnapPointsAlongRay(selection, worldRayStart, step,
surfaceSnappingActive ? snappingContext.s_AllSurfaceSnapEvents : null,
edgeSnappingActive ? snappingContext.s_AllEdgeSnapEvents : null,
vertexSnappingActive ? snappingContext.s_AllVertexSnapEvents : null);
snappingContext.CollectAllSnapPoints(foundWorldspacePoints);
return(true);
}
