Add basic gamepad keybindings

Adds basic support for gamepad buttons available as keybindings

Does not recognize joysticks

src/css/animations.scss

@@ -1,4 +1,4 @@
-@each $num in ("changeAnimEven", "changeAnimOdd") {
+@each $animName in ("changeAnimEven", "changeAnimOdd") {
     @keyframes #{$animName} {
         0% {
             transform: scale(1, 1);

src/js/application.js

@@ -366,6 +366,8 @@ export class Application {
 
         const time = performance.now();
 
+        this.inputMgr.processGamepadInputs();
+
         // Periodically check for resizes, this is expensive (takes 2-3ms so only do it once in a while!)
         if (!this.lastResizeCheck || time - this.lastResizeCheck > 1000) {
             this.checkResize();

src/js/core/input_distributor.js

@@ -28,6 +28,8 @@ export class InputDistributor {
          */
         this.keysDown = new Set();
 
+        this.connectedGamepadIndex = null;
+
         this.bindToEvents();
     }
 
@@ -149,6 +151,8 @@ export class InputDistributor {
         window.addEventListener("mouseup", this.handleKeyMouseUp.bind(this));
 
         window.addEventListener("blur", this.handleBlur.bind(this));
+
+        window.addEventListener("gamepadconnected", this.handleGamepadConnected.bind(this))
     }
 
     forwardToReceiver(eventId, payload = null) {
@@ -169,6 +173,45 @@ export class InputDistributor {
         return signal.dispatch(payload);
     }
 
+    handleGamepadConnected(event) {
+        this.connectedGamepadIndex = event.gamepad.index;
+    }
+
+    processGamepadInputs() {
+        if (this.connectedGamepadIndex === null) {
+            return
+        }
+
+        const gamepad = navigator.getGamepads()[this.connectedGamepadIndex];
+
+        for (const [index, button] of gamepad.buttons.entries()) {
+            const keyCode = 200 + index
+            const isInitial = !this.keysDown.has(keyCode);
+
+            if (button.pressed) {
+                logger.debug(`gamepad button [${index}]: ${button.pressed ? 'pressed' : ''}`)
+                this.keysDown.add(keyCode);
+
+                this.forwardToReceiver("keydown", {
+                    keyCode: keyCode,
+                    shift: 0,
+                    alt: 0,
+                    initial: isInitial,
+                })
+            }
+            if (!button.pressed && !isInitial) {
+                this.keysDown.delete(keyCode);
+
+                this.forwardToReceiver("keyup", {
+                    keyCode: keyCode,
+                    shift: 0,
+                    alt: 0,
+                });
+            }
+        }
+    }
+
+
     /**
      * @param {Event} event
      */

src/js/states/keybindings.js

@@ -99,7 +99,7 @@ export class KeybindingsState extends TextualGameState {
                 event.preventDefault();
             }
 
-            if (event.target && event.target.tagName === "BUTTON" && keyCode === 1) {
+            if (event && event.target && event.target.tagName === "BUTTON" && keyCode === 1) {
                 return;
             }
 
@@ -117,7 +117,7 @@ export class KeybindingsState extends TextualGameState {
             this.updateKeybindings();
         });
 
-        dialog.inputReciever.backButton.add(() => {});
+        dialog.inputReciever.backButton.add(() => { });
         this.dialogs.internalShowDialog(dialog);
 
         this.app.sound.playUiSound(SOUNDS.dialogOk);

yarn.lock

@@ -5103,14 +5103,6 @@ levn@^0.4.1:
     prelude-ls "^1.2.1"
     type-check "~0.4.0"
 
-line-column@^1.0.2:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/line-column/-/line-column-1.0.2.tgz#d25af2936b6f4849172b312e4792d1d987bc34a2"
-  integrity sha1-0lryk2tvSEkXKzEuR5LR2Ye8NKI=
-  dependencies:
-    isarray "^1.0.0"
-    isobject "^2.0.0"
-
 load-bmfont@^1.3.1, load-bmfont@^1.4.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/load-bmfont/-/load-bmfont-1.4.0.tgz#75f17070b14a8c785fe7f5bee2e6fd4f98093b6b"
@@ -5619,10 +5611,10 @@ nan@^2.12.1:
   resolved "https://registry.yarnpkg.com/nan/-/nan-2.14.1.tgz#d7be34dfa3105b91494c3147089315eff8874b01"
   integrity sha512-isWHgVjnFjh2x2yuJ/tj3JbwoHu3UC2dX5G/88Cm24yB6YopVgxvBObDY7n5xW6ExmFhJpSEQqFPvq9zaXc8Jw==
 
-nanoid@^3.1.12:
-  version "3.1.12"
-  resolved "https://registry.yarnpkg.com/nanoid/-/nanoid-3.1.12.tgz#6f7736c62e8d39421601e4a0c77623a97ea69654"
-  integrity sha512-1qstj9z5+x491jfiC4Nelk+f8XBad7LN20PmyWINJEMRSf3wcAjAWysw1qaA8z6NSKe2sjq1hRSDpBH5paCb6A==
+nanoid@^3.1.20:
+  version "3.1.20"
+  resolved "https://registry.yarnpkg.com/nanoid/-/nanoid-3.1.20.tgz#badc263c6b1dcf14b71efaa85f6ab4c1d6cfc788"
+  integrity sha512-a1cQNyczgKbLX9jwbS/+d7W8fX/RfgYR7lVWwWOGIPNgK2m0MWvrGF6/m4kk6U3QcFMnZf3RIhL0v2Jgh/0Uxw==
 
 nanomatch@^1.2.9:
   version "1.2.13"
@@ -6927,6 +6919,15 @@ postcss-zindex@^4.0.1:
     postcss "^7.0.0"
     uniqs "^2.0.0"
 
+postcss@>=5.0.0:
+  version "8.2.1"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.2.1.tgz#eabc5557c4558059b9d9e5b15bce7ffa9089c2a8"
+  integrity sha512-RhsqOOAQzTgh1UB/IZdca7F9WDb7SUCR2Vnv1x7DbvuuggQIpoDwjK+q0rzoPffhYvWNKX5JSwS4so4K3UC6vA==
+  dependencies:
+    colorette "^1.2.1"
+    nanoid "^3.1.20"
+    source-map "^0.6.1"
+
 postcss@^5.0.2:
   version "5.2.18"
   resolved "https://registry.yarnpkg.com/postcss/-/postcss-5.2.18.tgz#badfa1497d46244f6390f58b319830d9107853c5"
@@ -6955,16 +6956,6 @@ postcss@^7.0.0, postcss@^7.0.1, postcss@^7.0.14, postcss@^7.0.17, postcss@^7.0.2
     source-map "^0.6.1"
     supports-color "^6.1.0"
 
-postcss@^8.1.1:
-  version "8.1.1"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.1.1.tgz#c3a287dd10e4f6c84cb3791052b96a5d859c9389"
-  integrity sha512-9DGLSsjooH3kSNjTZUOt2eIj2ZTW0VI2PZ/3My+8TC7KIbH2OKwUlISfDsf63EP4aiRUt3XkEWMWvyJHvJelEg==
-  dependencies:
-    colorette "^1.2.1"
-    line-column "^1.0.2"
-    nanoid "^3.1.12"
-    source-map "^0.6.1"
-
 prelude-ls@^1.2.1:
   version "1.2.1"
   resolved "https://registry.yarnpkg.com/prelude-ls/-/prelude-ls-1.2.1.tgz#debc6489d7a6e6b0e7611888cec880337d316396"