It's hard to track pressed without keeping the old state...

Author: ZeroMemes

src/main/java/clientapi/util/io/MouseKeyTracker.java

@@ -26,7 +26,12 @@ public final boolean wasButtonPressed(int button, boolean newState) {
             mouseKeyStates = expandedArray;
         }
 
-        // Return true if the mouse is pressed in the new state and wasn't in the old state
-        return newState && !mouseKeyStates[button];
+        // true if the mouse is pressed in the new state and wasn't in the old state
+        boolean wasPressed = newState && !mouseKeyStates[button];
+
+        // Set the new state
+        mouseKeyStates[button] = newState;
+
+        return wasPressed;
     }
 }