1.1 \u670d\u52a1\u5668\u6027\u80fd\u6307\u6807<\/p>\n
2.2 \u4f18\u5316\u76ee\u6807\u4e0e\u7b56\u7565<\/p>\n
CPU\u7684\u4f7f\u7528\u7387\u4f7f\u5176\u4fdd\u6301\u5728\u4e00\u4e2a\u5408\u7406\u7684\u8303\u56f4\u5185(CPU\u7684\u4f7f\u7528\u7387\u901a\u5e38\u572810%\u523030%\u4e4b\u95f4，\u4f7f\u7528\u4e86\u5149\u5f71\u6a21\u7ec4\u6216\u5927\u91cf\u590d\u6742\u6a21\u7ec4，CPU\u4f7f\u7528\u7387\u53ef\u80fd\u4f1a\u66f4\u9ad8，\u8fbe\u523050%\u751a\u81f3\u66f4\u9ad8，tip:\u4f7f\u7528\u72ec\u7acb\u663e\u5361，\u975e\u72ec\u7acb\u663e\u5361\u6700\u597d\u4e0d\u8981\u52a0\u5149\u5f71，\u4e5f\u53ef\u4ee5\u5c06java.exe\u8bbe\u4e3a\u9ad8\u6027\u80fd，\u6216\u4f7f\u7528mod\u4f18\u5316，\u5982\u679c\u5b9e\u5728\u62ff\u4e0d\u51fa\u6765\u9ad8\u914d\u7f6e\u5c31\u964d\u4f4e\u6e32\u67d3\u8ddd\u79bb\u548c\u5173\u95ed\u9ad8\u7ea7\u56fe\u5f62\u6548\u679c！)，\u4ee5\u63d0\u9ad8\u670d\u52a1\u5668\u7684\u54cd\u5e94\u901f\u5ea6\u548c\u5904\u7406\u80fd\u529b\u3002\u7b56\u7565\u5305\u62ec\u4f18\u5316\u6e38\u620f\u903b\u8f91\u4ee3\u7801，\u51cf\u5c11\u4e0d\u5fc5\u8981\u7684\u8ba1\u7b97；\u5408\u7406\u914d\u7f6e\u670d\u52a1\u5668\u53c2\u6570，\u5982\u8c03\u6574tick\u901f\u7387\u3001\u4f18\u5316\u63d2\u4ef6\u52a0\u8f7d\u987a\u5e8f\u7b49；\u4f7f\u7528\u591a\u7ebf\u7a0b\u6280\u672f，\u5c06\u4e00\u4e9b\u8017\u65f6\u7684\u4efb\u52a1\u5206\u914d\u5230\u4e0d\u540c\u7684\u7ebf\u7a0b\u4e2d\u6267\u884c，\u63d0\u9ad8CPU\u7684\u5229\u7528\u7387\u3002<\/p>\n
\u964d\u4f4e\u5e26\u5bbd\u7684\u5360\u7528，\u63d0\u9ad8\u7f51\u7edc\u4f20\u8f93\u7684\u6548\u7387\u3002\u7b56\u7565\u5305\u62ec\u4f18\u5316\u6570\u636e\u4f20\u8f93\u534f\u8bae，\u51cf\u5c11\u6570\u636e\u5305\u7684\u5927\u5c0f\u548c\u4f20\u8f93\u6b21\u6570；\u4f7f\u7528\u6570\u636e\u538b\u7f29\u6280\u672f，\u5bf9\u4f20\u8f93\u7684\u6570\u636e\u8fdb\u884c\u538b\u7f29\u5904\u7406，\u964d\u4f4e\u5e26\u5bbd\u6d88\u8017；\u5408\u7406\u914d\u7f6e\u7f51\u7edc\u8bbe\u5907，\u5982\u8def\u7531\u5668\u3001\u4ea4\u6362\u673a\u7b49，\u4f18\u5316\u7f51\u7edc\u6d41\u91cf\u7684\u5206\u914d\u548c\u7ba1\u7406\u3001\u91c7\u7528\u66f4\u5148\u8fdb\u7684\u7f51\u7edc\u534f\u8bae，\u5982QUIC\u534f\u8bae，\u4f18\u5316\u7f51\u7edc\u8bbe\u5907\u7684\u914d\u7f6e，\u5982\u8c03\u6574\u8def\u7531\u5668\u7684QoS\u8bbe\u7f6e，\u4f18\u5148\u5904\u7406\u6e38\u620f\u6570\u636e\u5305；\u4f7f\u7528\u7f51\u7edc\u52a0\u901f\u6280\u672f，\u5982CDN\u52a0\u901f\u3001\u6570\u636e\u5305\u4f18\u5316\u7b49，\u63d0\u9ad8\u6570\u636e\u4f20\u8f93\u7684\u901f\u5ea6\u548c\u53ef\u9760\u6027\u3002<\/p>\n
\u6839\u636e\u670d\u52a1\u5668\u7684\u5b9e\u9645\u60c5\u51b5\u548c\u7f51\u7edc\u73af\u5883，\u81ea\u52a8\u9009\u62e9\u6700\u4f18\u7684\u7aef\u53e3\u914d\u7f6e，\u4ee5\u63d0\u9ad8\u7f51\u7edc\u901a\u4fe1\u7684\u6548\u7387\u548c\u7a33\u5b9a\u6027\u3002\u7b56\u7565\u5305\u62ec\u5f00\u53d1\u667a\u80fd\u7aef\u53e3\u9009\u62e9\u7b97\u6cd5，\u6839\u636e\u7f51\u7edc\u6d41\u91cf\u3001\u5ef6\u8fdf\u3001\u4e22\u5305\u7b49\u6307\u6807，\u52a8\u6001\u8c03\u6574\u7aef\u53e3\u914d\u7f6e；\u7ed3\u5408\u673a\u5668\u5b66\u4e60\u6280\u672f，\u5bf9\u5386\u53f2\u6570\u636e\u8fdb\u884c\u5206\u6790\u548c\u5b66\u4e60，\u9884\u6d4b\u6700\u4f18\u7684\u7aef\u53e3\u914d\u7f6e\u65b9\u6848\u3002<\/p>\n
\u5199\u4e86\u4e2a\u4e3b\u7a0b\u5e8f\u7684\u4ee3\u7801(\u53ea\u56e0\u4e0d\u60f3\u5199\u4e86，\u5927\u4f6c\u8bf7\u81ea\u8865)(\u6392\u7248\u53ef\u80fd\u6709\u4e9b\u95ee\u9898)<\/p>\n
import os<\/p>\n
import subprocess<\/p>\n
import time<\/p>\n
import json<\/p>\n
\u00a0<\/p>\n
# \u521d\u59cb\u5316\u914d\u7f6e<\/p>\n
network_threshold = {"latency": 50, "packet_loss": 1}<\/p>\n
port_score_standard = {"throughput_weight": 0.4, "stability_weight": 0.3, "security_weight": 0.3}<\/p>\n
monitor_interval = 60 # \u6bcf\u5206\u949f\u76d1\u6d4b\u4e00\u6b21<\/p>\n
\u00a0<\/p>\n
# \u7f51\u7edc\u73af\u5883\u76d1\u6d4b\u51fd\u6570<\/p>\n
def monitor_network():<\/p>\n
\u00a0 \u00a0 latency = subprocess.run(["ping", "-c", "4", "major_player_region_ip"], capture_output=True, text=True)<\/p>\n
\u00a0 \u00a0 packet_loss = subprocess.run(["some_packet_loss_detection_command"], capture_output=True, text=True)<\/p>\n
\u00a0 \u00a0 # \u89e3\u6790\u547d\u4ee4\u8f93\u51fa，\u63d0\u53d6\u5ef6\u8fdf\u548c\u4e22\u5305\u7387\u6570\u636e<\/p>\n
\u00a0 \u00a0 latency = float(latency.stdout.split("avg = ")[1].split("ms")[0])<\/p>\n
\u00a0 \u00a0 packet_loss = float(packet_loss.stdout.split("% packet loss")[0])<\/p>\n
\u00a0 \u00a0 return {"latency": latency, "packet_loss": packet_loss}<\/p>\n
\u00a0<\/p>\n
# \u7aef\u53e3\u6027\u80fd\u5206\u6790\u51fd\u6570<\/p>\n
def analyze_ports():<\/p>\n
\u00a0 \u00a0 ports_data = {}<\/p>\n
\u00a0 \u00a0 for port in range(25565, 25575): # \u5047\u8bbe\u68c0\u6d4b25565\u523025574\u7aef\u53e3<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 throughput = subprocess.run(["some_throughput_detection_command", str(port)], capture_output=True, text=True)<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 stability = subprocess.run(["some_stability_detection_command", str(port)], capture_output=True, text=True)<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 # \u8ba1\u7b97\u7aef\u53e3\u5f97\u5206<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 score = (float(throughput.stdout) * port_score_standard["throughput_weight"] +<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0float(stability.stdout) * port_score_standard["stability_weight"] +<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0some_security_score_function(port) * port_score_standard["security_weight"])<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 ports_data[port] = {"score": score, "throughput": throughput, "stability": stability}<\/p>\n
\u00a0 \u00a0 return ports_data<\/p>\n
\u00a0<\/p>\n
# \u6700\u4f18\u7aef\u53e3\u63a8\u8350\u51fd\u6570<\/p>\n
def recommend_optimal_port(ports_data):<\/p>\n
\u00a0 \u00a0 optimal_port = max(ports_data, key=lambda x: ports_data[x]["score"])<\/p>\n
\u00a0 \u00a0 return optimal_port<\/p>\n
\u00a0<\/p>\n
# \u81ea\u52a8\u914d\u7f6e\u7aef\u53e3\u51fd\u6570<\/p>\n
def configure_minecraft_port(port):<\/p>\n
\u00a0 \u00a0 subprocess.run(["some_minecraft_server_config_command", str(port)])<\/p>\n
\u00a0 \u00a0 subprocess.run(["systemctl", "restart", "minecraft_service"])<\/p>\n
\u00a0<\/p>\n
# \u4e3b\u5faa\u73af<\/p>\n
while True:<\/p>\n
\u00a0 \u00a0 network_data = monitor_network()<\/p>\n
\u00a0 \u00a0 if network_data["latency"] > network_threshold["latency"] or network_data["packet_loss"] > network_threshold["packet_loss"]:<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 ports_data = analyze_ports()<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 optimal_port = recommend_optimal_port(ports_data)<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 configure_minecraft_port(optimal_port)<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 # \u76d1\u6d4b\u914d\u7f6e\u6548\u679c\u5e76\u6536\u96c6\u53cd\u9988<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 time.sleep(30) # \u7b49\u5f8530\u79d2\u8ba9\u914d\u7f6e\u751f\u6548<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 feedback = subprocess.run(["some_feedback_collection_command"], capture_output=True, text=True)<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 if "negative" in feedback.stdout:<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 # \u82e5\u53cd\u9988\u8d1f\u9762，\u91cd\u65b0\u5206\u6790\u7aef\u53e3<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 continue<\/p>\n
\u00a0 \u00a0 time.sleep(monitor_interval)<\/p>\n
\u00a0<\/p>\n
2.1 TPS\u548c\u5ef6\u8fdf\u4f18\u5316<\/p>\n
Paper\u548cSpigot\u90fd\u662f\u57fa\u4e8eBukkit API\u7684Minecraft\u670d\u52a1\u5668\u8f6f\u4ef6，\u4f46Paper\u5728\u6027\u80fd\u4f18\u5316\u65b9\u9762\u66f4\u4e3a\u7a81\u51fa\u3002\u6839\u636e\u6d4b\u8bd5，Paper\u5728\u5904\u7406\u9ad8\u5e76\u53d1\u73a9\u5bb6\u548c\u590d\u6742\u6e38\u620f\u903b\u8f91\u65f6，\u80fd\u591f\u63d0\u4f9b\u66f4\u9ad8\u7684TPS（\u6bcf\u79d2\u4e8b\u52a1\u6570）\u548c\u66f4\u4f4e\u7684\u5ef6\u8fdf\u3002<\/p>\n
3.1 server.properties\u8bbe\u7f6e<\/p>\n
\u5728Minecraft\u670d\u52a1\u5668\u7684\u914d\u7f6e\u6587\u4ef6\u4e2d，\u00a0server.properties\u00a0\u662f\u57fa\u7840\u4e14\u5173\u952e\u7684\u914d\u7f6e\u6587\u4ef6，\u5b83\u5305\u542b\u4e86\u670d\u52a1\u5668\u8fd0\u884c\u7684\u57fa\u672c\u53c2\u6570\u8bbe\u7f6e\u3002\u5bf9\u4e8ePaper\u548cSpigot\u6765\u8bf4，\u867d\u7136\u5b83\u4eec\u90fd\u57fa\u4e8e\u8fd9\u4e2a\u6587\u4ef6，\u4f46Paper\u5728\u67d0\u4e9b\u914d\u7f6e\u9879\u4e0a\u63d0\u4f9b\u4e86\u66f4\u4f18\u5316\u7684\u9ed8\u8ba4\u8bbe\u7f6e\u548c\u989d\u5916\u7684\u914d\u7f6e\u9009\u9879\u3002<\/p>\n
3.2 bukkit.yml\u548cspigot.yml\u914d\u7f6e<\/p>\n
\u00a0bukkit.yml\u00a0\u548c\u00a0spigot.yml\u00a0\u6587\u4ef6\u5305\u542b\u4e86\u66f4\u8be6\u7ec6\u7684\u670d\u52a1\u5668\u914d\u7f6e\u9009\u9879，\u8fd9\u4e9b\u9009\u9879\u53ef\u4ee5\u8fdb\u4e00\u6b65\u4f18\u5316\u670d\u52a1\u5668\u7684\u6027\u80fd\u548c\u884c\u4e3a\u3002<\/p>\n
3.3 paper.yml\u9ad8\u7ea7\u8bbe\u7f6e<\/p>\n
\u00a0paper.yml\u00a0\u662fPaper\u7279\u6709\u7684\u914d\u7f6e\u6587\u4ef6，\u5b83\u63d0\u4f9b\u4e86\u4e00\u4e9b\u9ad8\u7ea7\u8bbe\u7f6e\u9009\u9879，\u8fd9\u4e9b\u9009\u9879\u53ef\u4ee5\u8fdb\u4e00\u6b65\u4f18\u5316\u670d\u52a1\u5668\u7684\u6027\u80fd\u3002<\/p>\n
Paper\u5728\u6027\u80fd\u548c\u8d44\u6e90\u4f7f\u7528\u65b9\u9762\u76f8\u8f83\u4e8eSpigot\u5177\u6709\u660e\u663e\u7684\u4f18\u52bf\u3002\u8fd9\u4e9b\u4f18\u5316\u4e0d\u4ec5\u63d0\u9ad8\u4e86\u670d\u52a1\u5668\u7684TPS\u548c\u964d\u4f4e\u4e86\u5ef6\u8fdf，\u8fd8\u51cf\u5c11\u4e86\u5185\u5b58\u548c\u8d44\u6e90\u7684\u6d88\u8017，\u4f7f\u5f97Paper\u6210\u4e3aMinecraft\u670d\u52a1\u5668\u4f18\u5316\u7684\u9996\u9009\u3002<\/p>\n
3.4\u81ea\u5b9a\u4e49\u4f18\u5316\u4ee3\u7801\u793a\u4f8b<\/p>\n
public class CustomChunkLoader implements ChunkLoader {<\/p>\n
\u00a0 \u00a0 private final World world;<\/p>\n
\u00a0 \u00a0 private final int centerX;<\/p>\n
\u00a0 \u00a0 private final int centerZ;<\/p>\n
\u00a0<\/p>\n
\u00a0 \u00a0 public CustomChunkLoader(World world, int centerX, int centerZ) {<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 this.world = world;<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 this.centerX = centerX;<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 this.centerZ = centerZ;<\/p>\n
\u00a0 \u00a0 }<\/p>\n
\u00a0<\/p>\n
\u00a0 \u00a0 @Override<\/p>\n
\u00a0 \u00a0 public Collection<Chunk> getLoadedChunks() {<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 List<Chunk> loadedChunks = new ArrayList<>();<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 for (int x = centerX – 5; x <= centerX + 5; x++) {<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 for (int z = centerZ – 5; z <= centerZ + 5; z++) {<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Chunk chunk = world.getChunkAt(x, z);<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 if (chunk != null && !chunk.isLoaded()) {<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 world.loadChunk(x, z);<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 }<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 loadedChunks.add(chunk);<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 }<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 }<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 return loadedChunks;<\/p>\n
\u00a0 \u00a0 }<\/p>\n
\u00a0<\/p>\n
\u00a0 \u00a0 @Override<\/p>\n
\u00a0 \u00a0 public void unloadChunks() {<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 for (int x = centerX – 5; x <= centerX + 5; x++) {<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 for (int z = centerZ – 5; z <= centerZ + 5; z++) {<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Chunk chunk = world.getChunkAt(x, z);<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 if (chunk != null && chunk.isLoaded()) {<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 world.unloadChunk(chunk);<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 }<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 }<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 }<\/p>\n
\u00a0 \u00a0 }<\/p>\n
}\u200b\u200b\u200b\u200b\u200b\u200b\u200b<\/p>\n
\u8fd9\u4e2a\u81ea\u5b9a\u4e49\u7684\u533a\u5757\u52a0\u8f7d\u4f18\u5316\u4ee3\u7801，\u521b\u5efa\u4e86\u4e00\u4e2a\u00a0CustomChunkLoader\u00a0\u7c7b，\u5b9e\u73b0\u4e86\u00a0ChunkLoader\u00a0\u63a5\u53e3\u3002\u5b83\u53ef\u4ee5\u6839\u636e\u6307\u5b9a\u7684\u4e2d\u5fc3\u5750\u6807，\u52a0\u8f7d\u548c\u5378\u8f7d\u5468\u56f4\u4e00\u5b9a\u8303\u56f4\u5185\u7684\u533a\u5757\u3002\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f，\u53ef\u4ee5\u5b9e\u73b0\u5bf9\u7279\u5b9a\u533a\u57df\u7684\u533a\u5757\u8fdb\u884c\u4f18\u5316\u52a0\u8f7d\u548c\u5378\u8f7d，\u63d0\u9ad8\u670d\u52a1\u5668\u7684\u6027\u80fd\u3002<\/p>\n
public class CustomEntityUpdater implements EntityUpdater {<\/p>\n
\u00a0 \u00a0 private final World world;<\/p>\n
\u00a0<\/p>\n
\u00a0 \u00a0 public CustomEntityUpdater(World world) {<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 this.world = world;<\/p>\n
\u00a0 \u00a0 }<\/p>\n
\u00a0<\/p>\n
\u00a0 \u00a0 @Override<\/p>\n
\u00a0 \u00a0 public void updateEntities() {<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 for (Entity entity : world.getEntities()) {<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 if (entity instanceof Mob) {<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Mob mob = (Mob) entity;<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 if (mob.getTarget() == null || mob.getTarget().isDead()) {<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 mob.setTarget(null);<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 }<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 if (mob.isOnGround()) {<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 mob.setVelocity(new Vector(0, 0, 0));<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 }<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 }<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 }<\/p>\n
\u00a0 \u00a0 }<\/p>\n
}<\/p>\n
\u8fd9\u4e2a\u81ea\u5b9a\u4e49\u7684\u5b9e\u4f53\u66f4\u65b0\u4f18\u5316\u4ee3\u7801，\u521b\u5efa\u4e86\u4e00\u4e2a\u00a0CustomEntityUpdater\u00a0\u7c7b，\u5b9e\u73b0\u4e86\u00a0EntityUpdater\u00a0\u63a5\u53e3\u3002\u5b83\u5728\u66f4\u65b0\u5b9e\u4f53\u65f6，\u5bf9\u602a\u7269\u5b9e\u4f53\u8fdb\u884c\u4e86\u7279\u6b8a\u5904\u7406\u3002\u4f8b\u5982，\u5982\u679c\u602a\u7269\u7684\u76ee\u6807\u4e0d\u5b58\u5728\u6216\u5df2\u6b7b\u4ea1，\u5219\u6e05\u9664\u602a\u7269\u7684\u76ee\u6807；\u5982\u679c\u602a\u7269\u5728\u5730\u9762\u4e0a，\u5219\u5c06\u5176\u901f\u5ea6\u8bbe\u7f6e\u4e3a\u96f6\u3002\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f，\u53ef\u4ee5\u51cf\u5c11\u4e0d\u5fc5\u8981\u7684\u5b9e\u4f53\u66f4\u65b0\u64cd\u4f5c，\u63d0\u9ad8\u670d\u52a1\u5668\u7684\u6027\u80fd\u3002<\/p>\n
<!DOCTYPE html><\/p>\n
<html lang="zh-CN"><\/p>\n
<head><\/p>\n
\u00a0 \u00a0 <meta charset="UTF-8"><\/p>\n
\u00a0 \u00a0 <meta name="viewport" content="width=device-width, initial-scale=1.0"><\/p>\n
\u00a0 \u00a0 <title>\u65b0\u5e74\u5feb\u4e50\u70df\u82b1\u6548\u679c<\/title><\/p>\n
\u00a0 \u00a0 <style><\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 body {<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 margin: 0;<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 overflow: hidden;<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 background-color: black;<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 }<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 canvas {<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 display: block;<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 }<\/p>\n
\u00a0 \u00a0 <\/style><\/p>\n
<\/head><\/p>\n
<body><\/p>\n
\u00a0 \u00a0 <canvas id="fireworksCanvas"><\/canvas><\/p>\n
\u00a0 \u00a0 <script><\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 const canvas = document.getElementById('fireworksCanvas');<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 const ctx = canvas.getContext('2d');<\/p>\n
\u00a0<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 canvas.width = window.innerWidth;<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 canvas.height = window.innerHeight;<\/p>\n
\u00a0<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 const fireworks = [];<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 const particles = [];<\/p>\n
\u00a0<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 function random(min, max) {<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 return Math.random() * (max – min) + min;<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 }<\/p>\n
\u00a0<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 function Firework(sx, sy, tx, ty) {<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 this.x = sx;<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 this.y = sy;<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 this.sx = sx;<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 this.sy = sy;<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 this.tx = tx;<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 this.ty = ty;<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 this.distanceToTarget = calculateDistance(sx, sy, tx, ty);<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 this.distanceTraveled = 0;<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 this.coordinates = [];<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 this.coordinateCount = 3;<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 while (this.coordinateCount–) {<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 this.coordinates.push([this.x, this.y]);<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 }<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 this.angle = Math.atan2(ty – sy, tx – sx);<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 this.speed = 2;<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 this.acceleration = 1.05;<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 this.brightness = random(50, 70);<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 this.targetRadius = 1;<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 }<\/p>\n
\u00a0<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 function Particle(x, y) {<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 this.x = x;<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 this.y = y;<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 this.coordinates = [];<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 this.coordinateCount = 5;<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 while (this.coordinateCount–) {<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 this.coordinates.push([this.x, this.y]);<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 }<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 this.angle = random(0, Math.PI * 2);<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 this.speed = random(1, 10);<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 this.friction = 0.95;<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 this.gravity = 1;<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 this.hue = random(0, 360);<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 this.brightness = random(50, 80);<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 this.alpha = 1;<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 this.decay = random(0.015, 0.03);<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 }<\/p>\n
\u00a0<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 function calculateDistance(p1x, p1y, p2x, p2y) {<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 let xDistance = p1x – p2x;<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 let yDistance = p1y – p2y;<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 return Math.sqrt(Math.pow(xDistance, 2) + Math.pow(yDistance, 2));<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 }<\/p>\n
\u00a0<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 function launchFirework(sx, sy, tx, ty) {<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 const firework = new Firework(sx, sy, tx, ty);<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 fireworks.push(firework);<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 }<\/p>\n
\u00a0<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 function drawFireworks() {<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 for (let i = fireworks.length – 1; i >= 0; i–) {<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 const firework = fireworks[i];<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 firework.coordinates.push([firework.x, firework.y]);<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 if (firework.coordinates.length > firework.coordinateCount) {<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 firework.coordinates.shift();<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 }<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 ctx.beginPath();<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 ctx.moveTo(firework.coordinates[0][0], firework.coordinates[0][1]);<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 for (let j = 1; j < firework.coordinates.length; j++) {<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 ctx.lineTo(firework.coordinates[j][0], firework.coordinates[j][1]);<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 }<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 ctx.strokeStyle = 'hsl(' + firework.brightness + ', 100%, 50%)';<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 ctx.stroke();<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 firework.distanceTraveled = calculateDistance(firework.sx, firework.sy, firework.x, firework.y);<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 firework.speed *= firework.acceleration;<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 const vx = Math.cos(firework.angle) * firework.speed;<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 const vy = Math.sin(firework.angle) * firework.speed;<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 firework.distanceToTarget -= firework.speed;<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 firework.x += vx;<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 firework.y += vy;<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 if (firework.distanceTraveled >= firework.distanceToTarget) {<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 for (let j = 0; j < 30; j++) {<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 const particle = new Particle(firework.tx, firework.ty);<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 particles.push(particle);<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 }<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 fireworks.splice(i, 1);<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 }<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 }<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 }<\/p>\n
\u00a0<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 function drawParticles() {<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 for (let i = particles.length – 1; i >= 0; i–) {<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 const particle = particles[i];<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 particle.coordinates.push([particle.x, particle.y]);<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 if (particle.coordinates.length > particle.coordinateCount) {<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 particle.coordinates.shift();<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 }<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 ctx.beginPath();<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 ctx.moveTo(particle.coordinates[0][0], particle.coordinates[0][1]);<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 for (let j = 1; j < particle.coordinates.length; j++) {<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 ctx.lineTo(particle.coordinates[j][0], particle.coordinates[j][1]);<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 }<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 ctx.strokeStyle = 'hsl(' + particle.hue + ', 100%, ' + particle.brightness + '%)';<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 ctx.stroke();<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 particle.x += Math.cos(particle.angle) * particle.speed;<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 particle.y += Math.sin(particle.angle) * particle.speed;<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"
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