local SectorMissileShape = {}

local _posTemp = FP.newV2(0, 0)
local _dirTemp = FP.newV2(0, 0)
local _rightTemp = FP.newV2(0, 0)
local _toHitTemp = FP.newV2(0, 0)
local _radiusTemp = FP.newV1(0)
local _innerRadiusTemp = FP.newV1(0)
local FP = FP

function SectorMissileShape.SetMissileTrigger(data,pos,dir)
    _posTemp:Reset(pos)
    _dirTemp:Reset(dir)
    _rightTemp.x:Reset(dir.z)
    _rightTemp.z:Reset(dir.x):Negative()

    local dirClone = _dirTemp:cloneV2()
    local rightClone = _rightTemp:cloneV2()
    _posTemp:Add(dirClone:Mul(data.OffsetZ))
    _posTemp:Add(rightClone:Mul(data.OffsetX))

    FP.releaseV2(dirClone)
    FP.releaseV2(rightClone)
end

function SectorMissileShape.CanEnterTrigger(missile, hitEntityPos,hitEntityRadius)

    _radiusTemp:Reset(missile:GetShapeParam1())
    if hitEntityRadius and hitEntityRadius > 0 then
        _radiusTemp:Add(hitEntityRadius)
    end
    _radiusTemp:Mul(_radiusTemp)

    local innerRadius = missile:GetShapeParam3()
    if innerRadius and innerRadius ~= FP.Const.Zero then
        _innerRadiusTemp:Reset(innerRadius):Mul(innerRadius)
        if not FP.V2.IsDistanceSqrGreater(_posTemp, hitEntityPos, _radiusTemp) and 
            FP.V2.IsDistanceSqrGreater(_posTemp, hitEntityPos, _innerRadiusTemp) then
            _toHitTemp:Reset(hitEntityPos):Sub(_posTemp)
            _toHitTemp:Normalize()
            return FP.V2.Angle(_toHitTemp, _dirTemp) < missile:GetShapeParam2()
        end
    else   
        if not FP.V2.IsDistanceSqrGreater(_posTemp, hitEntityPos, _radiusTemp) then
            _toHitTemp:Reset(hitEntityPos):Sub(_posTemp)
            _toHitTemp:Normalize()
            return FP.V2.Angle(_toHitTemp, _dirTemp) < missile:GetShapeParam2()
        end
    end
    return false
end

return SectorMissileShape