Merge branch '1.21.5' into improvement/build-simulator

Author: beanbag44

src/main/kotlin/com/lambda/module/hud/Fps.kt

@@ -0,0 +1,56 @@
+/*
+ * Copyright 2025 Lambda
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.lambda.module.hud
+
+import com.lambda.event.events.RenderEvent
+import com.lambda.event.listener.SafeListener.Companion.listen
+import com.lambda.gui.dsl.ImGuiBuilder
+import com.lambda.module.HudModule
+import com.lambda.module.tag.ModuleTag
+
+object Fps : HudModule(
+    name = "Fps",
+    description = "Displays your games frames per second",
+    tag = ModuleTag.HUD
+) {
+    val updateDelay by setting("Update Delay", 50, 0..1000, 1,"Time between updating the fps value")
+
+    var lastUpdated = System.currentTimeMillis()
+    var lastFrameTime = System.nanoTime()
+    var fps = 0
+
+    init {
+        listen<RenderEvent.Render> {
+            val currentTimeNano = System.nanoTime()
+
+            val currentTypeMilli = System.currentTimeMillis()
+            if (currentTypeMilli - lastUpdated >= updateDelay) {
+                lastUpdated = currentTypeMilli
+                val elapsedNs = currentTimeNano - lastFrameTime
+                fps = if (elapsedNs > 0) (1000000000 / elapsedNs).toInt()
+                else 0
+            }
+
+            lastFrameTime = currentTimeNano
+        }
+    }
+
+    override fun ImGuiBuilder.buildLayout() {
+        text("Fps: $fps")
+    }
+}