local GroupComponent = class("GroupComponent")

function GroupComponent:initialize(entity)
    --群组ID
    self.GroupID = 0
    
    --群组目前还存活的成员数量
    self.CurGroupEntityCount = 0
    
    --群组成员的ID列表
    self.GroupEntityIDList = {}
    
    --群组领袖的ID
    self.LeaderEntityID = nil
    
    --与群组领袖的距离
    self.ToLeaderDisSqr = nil
    
    --群组指令的ID
    self.GroupDecisionDataID = nil
    
    -----------------------------------------
    
    --群组成员列表
    self.GroupEntityList = {}
    
    --群组领袖
    self.LeaderEntity = nil
    
    --群组指令
    self.GroupDecisionData = nil
    
end

function GroupComponent:AddEntity(entity)
    table.insert(self.GroupEntityList, entity)
    table.insert(self.GroupEntityIDList, entity._logicInitData.EntityID)
    self.CurGroupEntityCount = self.CurGroupEntityCount + 1
    
    --print("Add, CurGroupEntityCount", self.CurGroupEntityCount)
end

function GroupComponent:RemoveEntity(entity)
    table.removebyvalue(self.GroupEntityList, entity, true)
    table.removebyvalue(self.GroupEntityIDList, entity._logicInitData.EntityID, true)
    self.CurGroupEntityCount = self.CurGroupEntityCount - 1
    
    --print("Remove, CurGroupEntityCount", self.CurGroupEntityCount)
end

function GroupComponent:SetGroupLeader(entity, leader)
    if leader then
        self.LeaderEntityID = leader._logicInitData.EntityID
        self.LeaderEntity = leader
        self.ToLeaderDisSqr = FP.V2.DistanceSqr(entity.components.move.LogicPos, leader.components.move.LogicPos)
    else
        self.LeaderEntityID = nil
        self.LeaderEntity = nil
        self.ToLeaderDisSqr = nil
    end
end

function GroupComponent:SetGroupDecisionData(decisionData)
    self.GroupDecisionData = decisionData
    if decisionData then
        self.GroupDecisionDataID = decisionData.ID
    else
        self.GroupDecisionDataID = nil
    end
end

-- 传入的 strideColumn, strideRow 单位必须是毫米，  在本方法内会统一转换为米
function GroupComponent:SetPhalanxInfo(index, dir, center, totalMemberCount, strideColumn, strideRow, rotateType, maxColumn)
    if not self.phalanxIndex then
        self.phalanxDir = FP.newV2(0,0)
        self.phalanxCenter = FP.newV2(0,0)
        self.phalanxStrideColumn = FP.newV1(0)
        self.phalanxStrideRow = FP.newV1(0)
    end
    self.phalanxIndex = index
    self.phalanxDir:Reset(dir)
    self.phalanxDir:Normalize()
    self.phalanxCenter:Reset(center)
    self.phalanxMemberCount = totalMemberCount
    self.phalanxStrideColumn:Reset(strideColumn):Div(1000) --列与列之间的间隔
    self.phalanxStrideRow:Reset(strideRow):Div(1000) --行与行之间的间隔
    self.maxColumn = maxColumn
    self.rotateType = rotateType
end

return GroupComponent