add speed on client side, and add api

build.gradle

@@ -17,7 +17,7 @@ loom {
 	splitEnvironmentSourceSets()
 
 	mods {
-		"modid" {
+		"no-limit-minecarts" {
 			sourceSet sourceSets.main
 			sourceSet sourceSets.client
 		}

gradle.properties

@@ -5,6 +5,6 @@ minecraft_version=24w33a
 yarn_mappings=24w33a+build.7
 loader_version=0.15.11
 
-mod_version=1.0.0
+mod_version=1.1.0
 maven_group=ru.nosqd.nlm
 archives_base_name=no-limit-minecarts

src/client/java/ru/nosqd/nlm/client/NoLimitMinecartsModClient.java

@@ -0,0 +1,13 @@
+package ru.nosqd.nlm.client;
+
+import net.fabricmc.api.ClientModInitializer;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class NoLimitMinecartsModClient implements ClientModInitializer {
+    public static final Logger LOGGER = LoggerFactory.getLogger("no-limit-minecarts-client");
+
+    @Override
+    public void onInitializeClient() {
+    }
+}

src/client/java/ru/nosqd/nlm/client/mixin/DebugHudMixin.java

@@ -0,0 +1,43 @@
+package ru.nosqd.nlm.client.mixin;
+
+import net.minecraft.client.MinecraftClient;
+import net.minecraft.client.gui.hud.DebugHud;
+import net.minecraft.util.Formatting;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
+import ru.nosqd.nlm.NoLimitMinecartsMod;
+import ru.nosqd.nlm.api.NoLimitMinecartsApi;
+
+import java.util.List;
+
+
+@Mixin(DebugHud.class)
+public class DebugHudMixin {
+    @Inject(method = "getLeftText", at = @At("RETURN"), cancellable = true)
+    private void getLeftText(CallbackInfoReturnable<List<String>> cir) {
+        var lines = cir.getReturnValue();
+        var nlmApi = NoLimitMinecartsApi.getInstance();
+        var player = MinecraftClient.getInstance().player;
+
+        lines.add("");
+
+        lines.add(Formatting.GREEN + "[No Limit Minecarts]");
+        lines.add(Formatting.AQUA + "Version: " + Formatting.GOLD + NoLimitMinecartsMod.VERSION);
+        if (player != null) {
+            if (nlmApi.isPlayerRiding(player)) {
+                var vehicle = nlmApi.getPlayerVehicle(player);
+                lines.add(Formatting.YELLOW + "Speed: " + Formatting.LIGHT_PURPLE + String.format("%.3f", nlmApi.getVehicleSpeed(vehicle)));
+            }
+            else {
+                lines.add(Formatting.YELLOW + "Player is not riding a vehicle.");
+            }
+        }
+        else {
+            lines.add(Formatting.RED + "Player is null.");
+        }
+
+        cir.setReturnValue(lines);
+    }
+}

src/client/resources/nlm.client.mixins.json

@@ -0,0 +1,11 @@
+{
+  "required": true,
+  "package": "ru.nosqd.nlm.client.mixin",
+  "compatibilityLevel": "JAVA_21",
+  "client": [
+    "DebugHudMixin"
+  ],
+  "injectors": {
+    "defaultRequire": 1
+  }
+}

src/main/java/ru/nosqd/nlm/NoLimitMinecartsMod.java

@@ -3,18 +3,27 @@
 import net.fabricmc.api.DedicatedServerModInitializer;
 
 import net.fabricmc.api.ModInitializer;
+import net.fabricmc.loader.api.FabricLoader;
+import net.fabricmc.loader.api.ModContainer;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
+import ru.nosqd.nlm.api.NoLimitMinecartsApi;
 
-// TODO: maybe add F3 line
 // TODO: maybe add when you set value greater than 1000 show message like "Your gamerules are boosted by no limit minecarts"
 // TODO: add notification when you join world without minecart feature flag like "this world can't be boosted by no limit minecarts"
 
 public class NoLimitMinecartsMod implements ModInitializer {
 	public static final Logger LOGGER = LoggerFactory.getLogger("no-limit-minecarts");
+	public static final String VERSION;
+
+	static {
+		ModContainer mod = FabricLoader.getInstance().getModContainer("no-limit-minecarts").orElseThrow();
+		VERSION = mod.getMetadata().getVersion().getFriendlyString();
+	}
 
 	@Override
 	public void onInitialize() {
 		LOGGER.info("Starting No Limit Minecarts mod");
+		NoLimitMinecartsApi.initialize();
 	}
 }

src/main/java/ru/nosqd/nlm/api/NoLimitMinecartsApi.java

@@ -0,0 +1,36 @@
+package ru.nosqd.nlm.api;
+
+import net.minecraft.entity.Entity;
+import net.minecraft.entity.player.PlayerEntity;
+import ru.nosqd.nlm.NoLimitMinecartsMod;
+
+public class NoLimitMinecartsApi {
+    private static NoLimitMinecartsApi instance;
+
+    public static void initialize() {
+        if (instance != null) {
+            NoLimitMinecartsMod.LOGGER.warn("Some function tried to reinitialize nlm api, nothing will be done");
+            return;
+        }
+        instance = new NoLimitMinecartsApi();
+    }
+
+    public static NoLimitMinecartsApi getInstance() {
+        return instance;
+    }
+
+    public boolean isPlayerRiding(PlayerEntity player) {
+        return player.hasVehicle();
+    }
+
+    public Entity getPlayerVehicle(PlayerEntity player) {
+        return player.getVehicle();
+    }
+
+    public double getVehicleSpeed(Entity entity) {
+        var velocity = entity.getVelocity();
+
+        double speedInBlocksPerTick = Math.sqrt(velocity.x * velocity.x + velocity.y * velocity.y + velocity.z * velocity.z);
+        return speedInBlocksPerTick * 20;
+    }
+}

src/main/resources/fabric.mod.json

@@ -19,10 +19,17 @@
 	"entrypoints": {
 		"main": [
 			"ru.nosqd.nlm.NoLimitMinecartsMod"
+		],
+		"client": [
+			"ru.nosqd.nlm.client.NoLimitMinecartsModClient"
 		]
 	},
 	"mixins": [
-		"nlm.mixins.json"
+		"nlm.mixins.json",
+		{
+			"config": "nlm.client.mixins.json",
+			"environment": "client"
+		}
 	],
 	"depends": {
 		"fabricloader": ">=0.15.11",