move deltaTicks to GuiUtils (#33)

* move from mod events to mixin

* packet events

* move deltaTicks to GuiUtils

* delete easeOut

1 files changed, 35 insertions, 0 deletions

diff --git a/src/main/java/cc/polyfrost/oneconfig/utils/GuiUtils.java b/src/main/java/cc/polyfrost/oneconfig/utils/GuiUtils.java
index 92df1b1..c6afb00 100644
--- a/src/main/java/cc/polyfrost/oneconfig/utils/GuiUtils.java
+++ b/src/main/java/cc/polyfrost/oneconfig/utils/GuiUtils.java
@@ -1,5 +1,10 @@
 package cc.polyfrost.oneconfig.utils;
 
+import cc.polyfrost.oneconfig.events.EventManager;
+import cc.polyfrost.oneconfig.events.event.RenderEvent;
+import cc.polyfrost.oneconfig.events.event.Stage;
+import cc.polyfrost.oneconfig.libs.eventbus.Subscribe;
+import cc.polyfrost.oneconfig.libs.universal.UMinecraft;
 import cc.polyfrost.oneconfig.libs.universal.UScreen;
 import net.minecraft.client.gui.GuiScreen;
 
@@ -7,6 +12,11 @@ import net.minecraft.client.gui.GuiScreen;
  * A class containing utility methods for working with GuiScreens.
  */
 public final class GuiUtils {
+    static {
+        EventManager.INSTANCE.register(new GuiUtils());
+    }
+    private static long time = -1L;
+    private static long deltaTime = 17L;
 
     /**
      * Displays a screen after a tick, preventing mouse sync issues.
@@ -21,4 +31,29 @@ public final class GuiUtils {
     public static void closeScreen() {
         UScreen.displayScreen(null);
     }
+
+    /**
+     * Gets the delta time (in milliseconds) between frames.
+     * <p><b>
+     *     Not to be confused with Minecraft deltaTicks / renderPartialTicks, which can be gotten via
+     *     {@link cc.polyfrost.oneconfig.events.event.TimerUpdateEvent}
+     * </b></p>
+     *
+     * @return the delta time.
+     */
+    public static float getDeltaTime() {
+        return deltaTime;
+    }
+
+    @Subscribe
+    private void onRenderEvent(RenderEvent event) {
+        if (event.stage == Stage.START) {
+            if (time == -1) time = UMinecraft.getTime();
+            else {
+                long currentTime = UMinecraft.getTime();
+                deltaTime = currentTime - time;
+                time = currentTime;
+            }
+        }
+    }
 }