package npc

import (
	"common/proto/sc/sc_pb"
	"common/proto/ss/grpc_pb"
)

// PlayerNode 定义玩家节点结构体
type PlayerNode struct {
	UID        int32   // 用户ID
	GatewaySID int64   // 网关服务ID
	MoveSpeed  float32 // 移动速度

	Position      [2]float32           // 二维坐标 [x, y]
	MoveDirection [2]int8              // 移动方向 [x, y]
	MoveCount     int8                 // 移动指令使用计数
	Action        []*grpc_pb.ActionReq // 其他操作
}

func NewPlayerNode(gatewaySID int64, uid int32) *PlayerNode {
	return &PlayerNode{
		UID:        uid,
		GatewaySID: gatewaySID,
		MoveSpeed:  5 * 0.00001,
		Position:   [2]float32{0, 0},
		Action:     make([]*grpc_pb.ActionReq, 0),
	}
}

// AddAction 将指令存储到玩家身上
func (p *PlayerNode) AddAction(e *grpc_pb.ActionReq) {
	p.Action = append(p.Action, e)
}

// LogicAction 处理玩家操作指令
// return 是否更新玩家状态
func (p *PlayerNode) LogicAction(delta int64) bool {
	for _, a := range p.Action {
		switch sc_pb.ActionID(a.Action) {
		case sc_pb.ActionID_ACTION_ID_MOVE:
			p.MoveDirection = [2]int8{int8(a.DirX), int8(a.DirY)}
			p.MoveCount = 0
		case sc_pb.ActionID_ACTION_ID_ATTACK:
		}
	}
	p.Action = make([]*grpc_pb.ActionReq, 0)

	return p.move(delta)
}

func (p *PlayerNode) move(delta int64) bool {
	if p.MoveDirection[0] == 0 && p.MoveDirection[1] == 0 {
		return false
	}
	// 移动指令只能用2秒，客户端需要定期续上
	if p.MoveCount >= 40 {
		p.MoveDirection = [2]int8{0, 0}
		return false
	}
	p.Position[0] += float32(p.MoveDirection[0]) * float32(delta) * p.MoveSpeed
	p.Position[1] += float32(p.MoveDirection[1]) * float32(delta) * p.MoveSpeed
	p.MoveCount++
	return true
}