package com.demo.navtogether;
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import androidx.appcompat.app.AppCompatActivity;
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import android.app.ProgressDialog;
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import android.graphics.Point;
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import android.os.Bundle;
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import android.view.View;
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import android.view.ViewTreeObserver;
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import android.widget.Button;
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import android.widget.Toast;
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import com.demo.navtogether.utils.DijkstraUtils;
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import com.demo.navtogether.utils.PathPlan;
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import com.demo.navtogether.utils.TriangleUtils;
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import java.text.DecimalFormat;
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import java.util.ArrayList;
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import java.util.HashMap;
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public class MainActivity extends AppCompatActivity {
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PlanPathView planPathView;
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Button btnRefresh,btnDrawD,btnDrawC;
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boolean animD,animC;
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.activity_main);
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planPathView = findViewById(R.id.planpath);
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btnRefresh = findViewById(R.id.btn_refresh);
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btnDrawD = findViewById(R.id.btn_draw_dijkstra);
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btnDrawC = findViewById(R.id.btn_draw_custom);
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ViewTreeObserver vto = planPathView.getViewTreeObserver();
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vto.addOnPreDrawListener(new ViewTreeObserver.OnPreDrawListener() {
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public boolean onPreDraw() {
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int height = planPathView.getMeasuredHeight();
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int width = planPathView.getMeasuredWidth();
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planPathView.setPoints(randomList(width,height));
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planPathView.getViewTreeObserver().removeOnPreDrawListener(this);
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return true;
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}
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});
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}
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PlanPathView.AnimatorListener listener = new PlanPathView.AnimatorListener() {
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@Override
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public void onAnimation(int value) {
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btnRefresh.setEnabled(false);
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btnDrawD.setEnabled(false);
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btnDrawC.setEnabled(false);
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}
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@Override
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public void onFinish() {
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btnRefresh.setEnabled(true);
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btnDrawD.setEnabled(true);
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btnDrawC.setEnabled(true);
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}
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};
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/**
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* 创建随机位置
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* @param width 范围宽度
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* @param height 范围高度
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* @return
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*/
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public ArrayList<PathPlan.Place> randomList(int width,int height){
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ArrayList<PathPlan.Place> places = new ArrayList<>();
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places.add(new PathPlan.Place("甲",random(width,height),0));
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places.add(new PathPlan.Place("乙",random(width,height),0));
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places.add(new PathPlan.Place("丙",random(width,height),0));
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places.add(new PathPlan.Place("丁",random(width,height),0));
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places.add(new PathPlan.Place("戊",random(width,height),0));
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places.add(new PathPlan.Place("己",random(width,height),0));
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places.add(new PathPlan.Place("庚",random(width,height),0));
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places.add(new PathPlan.Place("辛",random(width,height),0));
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places.add(new PathPlan.Place("壬",random(width,height),0));
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places.add(new PathPlan.Place("癸",random(width,height),0));
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return places;
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}
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/**
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* 创建随机位置
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* @param maxX
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* @param maxY
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* @return
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*/
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public Point random(int maxX,int maxY){
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int marginX = (int) (getResources().getDisplayMetrics() .density*15)*2;
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Point point = new Point();
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point.x = (int) (Math.random()*(maxX-marginX))+(marginX/2);
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point.y = (int) (Math.random()*(maxY-marginX))+(marginX/2);
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return point;
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}
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/**
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* 迪杰斯特拉算法画线
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* @param view
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*/
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public void drawLine(View view){
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planPathView.clearLines();
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//执行算法，返回位置路线集合
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ArrayList<PathPlan.Place> excute = new DijkstraUtils(PathPlan.intPoints(planPathView.getPoints())).excute(planPathView.getPoints().get(2));
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ArrayList<PlanPathView.Line> lines = new ArrayList<>();
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for(int i = 0 ; i < excute.size() -1; i ++){
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//生成路线
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lines.add(new PlanPathView.Line(excute.get(i).point,excute.get(i+1).point,excute.get(i+1).distance));
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System.out.println(excute.get(i)+" 距离："+(i == excute.size() -1?"": TriangleUtils.getLengthOfSide(excute.get(i).point,excute.get(i+1).point)) +" "+excute.get(i).distance);
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}
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if(animD){
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planPathView.drawLine(lines);
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}else {
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animD = true;
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planPathView.drawAnimLine(lines, listener);
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}
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}
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int index = 0 ;
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ArrayList<ArrayList<PathPlan.Place>> customLists;
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/**
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* 自定义算法画线
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* @param view
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*/
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public void drawLineCustom(View view){
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planPathView.clearLines();
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System.out.println("drawLineCustom " );
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if(customLists == null || customLists.size() == 0) {
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ProgressDialog progressDialog = new ProgressDialog(this);
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progressDialog.setMessage("正在規劃路綫");
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progressDialog.show();
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new Thread(new Runnable() {
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@Override
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public void run() {
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HashMap<PathPlan.Place, PathPlan.Distance> distanceHashMap = PathPlan.intPoints(planPathView.getPoints());
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customLists = new DijkstraUtils(distanceHashMap).initCustomPathPlan(planPathView.getPoints().get(2), null);
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runOnUiThread(new Runnable() {
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@Override
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public void run() {
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System.out.println("drawLineCustom " );
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progressDialog.dismiss();
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drawLineCustome();
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}
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});
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}
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}).start();
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}else{
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drawLineCustome();
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}
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}
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public void drawLineCustome(){
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if(customLists.size()>1){
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Toast.makeText(MainActivity.this,"当前有"+customLists.size()+"路线规划",Toast.LENGTH_SHORT).show();
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}
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ArrayList<PlanPathView.Line> lines = new ArrayList<>();
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ArrayList<PathPlan.Place> arrayList = customLists.get(index % customLists.size());
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for(int i = 0 ; i < arrayList.size() -1; i ++){
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lines.add(new PlanPathView.Line(arrayList.get(i).point,arrayList.get(i+1).point,arrayList.get(i+1).distance));
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}
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index++;
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if(animC){
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planPathView.drawLine(lines);
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}else {
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animC = true;
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planPathView.drawAnimLine(lines, listener);
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}
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}
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public void refresh(View view) {
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planPathView.clear();
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customLists.clear();
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int width = planPathView.getWidth();
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int height = planPathView.getHeight();
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ArrayList<PathPlan.Place> places = new ArrayList<>();
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places.add(new PathPlan.Place("A",random(width,height),0));
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places.add(new PathPlan.Place("B",random(width,height),0));
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places.add(new PathPlan.Place("C",random(width,height),0));
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places.add(new PathPlan.Place("D",random(width,height),0));
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places.add(new PathPlan.Place("E",random(width,height),0));
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places.add(new PathPlan.Place("F",random(width,height),0));
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places.add(new PathPlan.Place("G",random(width,height),0));
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places.add(new PathPlan.Place("H",random(width,height),0));
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animD = false;
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animC = false;
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planPathView.setAnimPoints(randomList(width,height),listener);
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}
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}
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