GetNormalY#

NormalY# = GetNormalY#(PointIndex)

Parameters:     PointIndex = The index of intersection point you wish to read

Returns:     NormalY# = The Y component of the normal vector

The GetNormalY# functions returns the Y component of the normal vector from a previous intersection calculation. FACTS:       * None Mini Tutorial:       This example shows how to detect an intersection (between a ray and a circle), then display the intersection point and normal.       ; Calculate position of main circle   HCentre = GetScreenWidth() / 2   VCentre = GetScreenHeight() / 2    ; Begin program main repeat/until loop   Repeat      Cls RGB(0,0,0)    ; Draw a circle      Circle HCentre, VCentre, 40, 0            mx#=MouseX()      my#=MouseY()          ; Draw a line from 0,0 to Mouse position      Line 20, 20, mx#,my#          ; Check for Intersection      If LineIntersectCircle(20 , 20, mx#, my#, HCentre, VCentre, 40,7)                  Print "Line Intersected Circle"         ix#=GetIntersectX#(0)         iy#=GetIntersectY#(0)                ; draw a read circle to show the intersection point         CircleC ix#,iy#,5,1,RGB(255,0,0)                ; Project a ray in the intersection points normal         x2#=ix#+(GetNormalX#(0)*50)         y2#=iy#+(GetNormalY#(0)*50)                  LineC ix#,iy#,x2#,y2#,RGB(0,0,255)                        EndIf      Sync   Until EscKey()

Related Info:	CirclesIntersect | GetIntersectX# | GetIntersectY# | GetNormalX# | LineIntersectCircle | PointIntersectCircle | RayHitSprite | SpriteCollisionMode :

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