lineIntersectsSurfaces

1.50

GAGlobal

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Description

Description:

Returns list of intersections with surfaces from begPosASL to endPosASL. If there is ground intersection, it is also included. Works on units. Works underwater. Doesn't return intersection with sea surface. Hardcoded max distance: 5000m.

Since Arma v1.51.131920 it is possible to indicate primary and secondary LOD to look for intersection. Available options are:

• "FIRE"
• "VIEW"
• "GEOM"
• "IFIRE" - ("I" stands for Indirect, almost the same as FIRE)
• "NONE"

Default LODs are "VIEW" and "FIRE"

Groups:

Uncategorised

Syntax

Syntax:

lineIntersectsSurfaces [begPosASL, endPosASL, ignoreObj1, ignoreObj2, sortMode, maxResults, LOD1, LOD2]

Parameters:

[begPosASL, endPosASL, ignoreObj1, ignoreObj2, sortMode, maxResults, LOD1, LOD2]: Array

begPosASL: PositionASL - virtual line start

endPosASL: PositionASL - virtual line end

ignoreObj1 (Optional): Object - first object to ignore or objNull: Default: objNull

ignoreObj2 (Optional): Object - second object to ignore or objNull: Default: objNull

sortMode (Optional): Boolean - true: closest to furthest, false: furthest to closest. Default: true

maxResults (Optional): Number - Max results to return. -1 to return every result. Default: 1

LOD1 (Optional): String (added in v1.51.131920) - Primary LOD to look for intersection. Default: "VIEW"

LOD2 (Optional): String (added in v1.51.131920) - Secondary LOD to look for intersection. Default: "FIRE"

Return Value:

Array of intersections in format [[intersectPosASL, surfaceNormal, intersectObj, parentObject],...] where:

• intersectPosASL - the actual position where line intersects 1st surface
• surfaceNormal - a normal to the intersected surface
• intersectObject - the object the surface belongs to (could be proxy object)
• parentObject - the object proxy object belongs to (not always the same as intersect object)

Examples

Example 1:

_intersections = lineIntersectsSurfaces [eyePos player, aimPos chopper, player, chopper, true, -1];

Example 2:

arrow = "Sign_Arrow_F" createVehicle [0,0,0]; onEachFrame { _ins = lineIntersectsSurfaces [ AGLToASL positionCameraToWorld [0,0,0], AGLToASL positionCameraToWorld [0,0,1000], player ]; if (count _ins == 0) exitWith {arrow setPosASL [0,0,0]}; arrow setPosASL (_ins select 0 select 0); arrow setVectorUp (_ins select 0 select 1); hintSilent str _ins; };

Example 3:

This should detect glass windows and wire fences (since Arma v1.51.131920): wirefence = "Land_New_WiredFence_5m_F" createVehicle position player; arrow = "Sign_Arrow_F" createVehicle [0,0,0]; onEachFrame { _ins = lineIntersectsSurfaces [ AGLToASL positionCameraToWorld [0,0,0], AGLToASL positionCameraToWorld [0,0,1000], player, objNull, true, 1, "GEOM", "NONE" ]; if (count _ins == 0) exitWith {arrow setPosASL [0,0,0]}; arrow setPosASL (_ins select 0 select 0); arrow setVectorUp (_ins select 0 select 1); hintSilent str _ins; };

Additional Information

See also:

lineIntersectsWithlineIntersectsObjsterrainIntersectterrainIntersectASLlineIntersectsintersect

Notes

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Posted on August 27, 2015 - 12:44 (UTC)

Killzone Kid

Fast check if object is in a house:KK_fnc_inHouse = { lineIntersectsSurfaces [ getPosWorld _this, getPosWorld _this vectorAdd [0, 0, 50], _this, objNull, true, 1, "GEOM", "NONE" ] select 0 params ["","","","_house"]; if (_house isKindOf "House") exitWith {true}; false }; onEachFrame {hintSilent str (player call KK_fnc_inHouse)};