From 1b41bdb8e3df939b8f0b182bad0bef820ae956dc Mon Sep 17 00:00:00 2001
From: Hans Sorongon <hanssorongonn@gmail.com>
Date: Tue, 16 Apr 2024 06:55:03 +0800
Subject: [PATCH] Added built-in support for gamepads using Phaser.Gamepad

---
 src/battle-scene.ts | 49 ++++++++++++++++++++++++++++++++++++++++++---
 src/main.ts         |  3 ++-
 2 files changed, 48 insertions(+), 4 deletions(-)

diff --git a/src/battle-scene.ts b/src/battle-scene.ts
index 30c6c5603..2d7329927 100644
--- a/src/battle-scene.ts
+++ b/src/battle-scene.ts
@@ -198,6 +198,26 @@ export default class BattleScene extends SceneBase {
 	// (i.e. by holding down a button) at a time
 	private movementButtonLock: Button;
 
+  // using a dualshock controller as a map
+  private gamepadKeyConfig = {
+    [Button.UP]: 12, // up
+    [Button.DOWN]: 13, // down
+    [Button.LEFT]: 14, // left
+    [Button.RIGHT]: 15, // right
+    [Button.SUBMIT]: 17, // touchpad
+    [Button.ACTION]: 0, // X
+    [Button.CANCEL]: 1, // O
+    [Button.MENU]: 9, // options
+    [Button.CYCLE_SHINY]: 5, // RB
+    [Button.CYCLE_FORM]: 4, // LB
+    [Button.CYCLE_GENDER]: 6, // LT
+    [Button.CYCLE_ABILITY]: 7, // RT
+    [Button.CYCLE_NATURE]: 2, // square
+    [Button.SPEED_UP]: 10, // L3
+    [Button.SLOW_DOWN]: 11 // R3
+  }
+  public gamepadButtonStates: boolean[] = new Array(17).fill(false);
+
 	public rngCounter: integer = 0;
 	public rngSeedOverride: string = '';
 	public rngOffset: integer = 0;
@@ -1273,8 +1293,31 @@ export default class BattleScene extends SceneBase {
 			navigator.vibrate(vibrationLength || 10);		
 	}
 
+  /**
+   * gamepadButtonJustDown returns true if @param button has just been pressed down
+   * or not. It will only return true once, until the key is released and pressed down
+   * again. 
+   */
+  gamepadButtonJustDown(button: Phaser.Input.Gamepad.Button) : boolean {
+
+    if (!button) return;
+
+    let returnValue = false;
+    if (button.pressed) {
+      if (!this.gamepadButtonStates[button.index]) {
+        returnValue = true;
+      }
+      this.gamepadButtonStates[button.index] = true;
+    } else {
+      this.gamepadButtonStates[button.index] = false;
+    }
+
+    return returnValue;
+  }
+
 	buttonJustPressed(button: Button): boolean {
-		return this.buttonKeys[button].some(k => Phaser.Input.Keyboard.JustDown(k));
+    const gamepad = this.input.gamepad?.gamepads[0];
+		return this.buttonKeys[button].some(k => Phaser.Input.Keyboard.JustDown(k)) || this.gamepadButtonJustDown(gamepad?.buttons[this.gamepadKeyConfig[button]]);
 	}
 
 	/**
@@ -1286,7 +1329,7 @@ export default class BattleScene extends SceneBase {
 		if (this.movementButtonLock !== null && this.movementButtonLock !== button) {
 			return false;
 		}
-		if (this.buttonKeys[button].every(k => k.isUp)) {
+		if (this.buttonKeys[button].every(k => k.isUp) && this.gamepadButtonStates.every(b => b == false)) {
 			this.movementButtonLock = null;
 			return false;
 		}
@@ -1937,4 +1980,4 @@ export default class BattleScene extends SceneBase {
 
 		return false;
 	}
-}
\ No newline at end of file
+}
diff --git a/src/main.ts b/src/main.ts
index 4c2260614..8695ffb34 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -44,6 +44,7 @@ const config: Phaser.Types.Core.GameConfig = {
 		touch: {
 			target: 'app'
 		},
+    gamepad: true
 	},
 	dom: {
 		createContainer: true
@@ -78,4 +79,4 @@ document.fonts.load('16px emerald').then(() => document.fonts.load('10px pkmnems
 const game = new Phaser.Game(config);
 game.sound.pauseOnBlur = false;
 
-export default game;
\ No newline at end of file
+export default game;