src/main/java/com/irtimaled/bbor/client/keyboard/Key.java

   1 package com.irtimaled.bbor.client.keyboard;
   2
   3 import net.minecraft.client.util.InputUtil;
   4
   5 import java.util.HashSet;
   6 import java.util.Set;
   7
   8 public class Key {
   9     private int keyCode;
  10     private KeyHandler onKeyPress;
  11     private final Set<Key> subKeys = new HashSet<>();
  12     private boolean triggeredSincePress;
  13
  14     Key(int keyCode) {
  15         this.keyCode = keyCode;
  16     }
  17
  18     public Key onKeyPressHandler(KeyHandler onKeyPress) {
  19         this.onKeyPress = onKeyPress;
  20         return this;
  21     }
  22
  23     void updateKeyCode(int keyCode) {
  24         this.keyCode = keyCode;
  25     }
  26
  27     private int pressDuration = 0;
  28
  29     private void runHandler(KeyHandler onKeyPress) {
  30         triggeredSincePress = true;
  31         onKeyPress.handle();
  32     }
  33
  34     private void press() {
  35         for (Key subKey : subKeys) {
  36             subKey.triggeredSincePress = false;
  37         }
  38         triggeredSincePress = false;
  39         pressDuration++;
  40     }
  41
  42     private void release() {
  43         try {
  44             for (Key subKey : subKeys) {
  45                 if (subKey.pressDuration > 0) {
  46                     subKey.release();
  47                     return;
  48                 }
  49                 if (subKey.triggeredSincePress) {
  50                     return;
  51                 }
  52             }
  53             if (onKeyPress != null && pressDuration > 0) {
  54                 runHandler(onKeyPress);
  55             }
  56         } finally {
  57             pressDuration = 0;
  58         }
  59     }
  60
  61     boolean handleKeyEvent(int keyCode, boolean isPressed) {
  62         if (this.keyCode == keyCode) {
  63             if (isPressed) {
  64                 press();
  65             } else {
  66                 release();
  67             }
  68             return true;
  69         } else if (this.pressDuration > 0) {
  70             for (Key subKey : subKeys) {
  71                 if (subKey.handleKeyEvent(keyCode, isPressed)) {
  72                     return true;
  73                 }
  74             }
  75         }
  76
  77         return false;
  78     }
  79
  80     public Key register(String keyName) {
  81         InputUtil.Key input = InputUtil.fromTranslationKey(keyName);
  82         Key key = new Key(input.getCode());
  83         subKeys.add(key);
  84         return key;
  85     }
  86 }