From 4a2575a7bd8fd884d4b652725ca56dafc031dea3 Mon Sep 17 00:00:00 2001
From: Pihkaal <pihkaal@proton.me>
Date: Mon, 23 Feb 2026 14:32:26 +0100
Subject: [PATCH] feat(2d-nds): physical buttons

---
 app/components/NDS2D.vue | 202 +++++++++++++++++++++++++++++++++------
 1 file changed, 175 insertions(+), 27 deletions(-)

diff --git a/app/components/NDS2D.vue b/app/components/NDS2D.vue
index 20df45d..a3f5dab 100644
--- a/app/components/NDS2D.vue
+++ b/app/components/NDS2D.vue
@@ -6,6 +6,49 @@ const app = useAppStore();
 const windowSize = useWindowSize();
 const hintsContainer = useTemplateRef("hintsContainer");
 
+const buttonsDown = reactive(new Set<string>());
+let mousePressedButton: string | null = null;
+
+const dPadStyle = computed(() => {
+  const rx =
+    (buttonsDown.has("UP") ? -1 : 0) + (buttonsDown.has("DOWN") ? 1 : 0);
+  const ry =
+    (buttonsDown.has("LEFT") ? -1 : 0) + (buttonsDown.has("RIGHT") ? 1 : 0);
+  if (!rx && !ry) return {};
+  return { transform: `rotateX(${rx * 12}deg) rotateY(${ry * 12}deg)` };
+});
+
+const pressButton = (button: string) => {
+  if (mousePressedButton) {
+    buttonsDown.delete(mousePressedButton);
+    window.dispatchEvent(
+      new KeyboardEvent("keyup", { key: `NDS_${mousePressedButton}` }),
+    );
+  }
+  buttonsDown.add(button);
+  mousePressedButton = button;
+  window.dispatchEvent(new KeyboardEvent("keydown", { key: `NDS_${button}` }));
+};
+
+const releaseButton = () => {
+  if (!mousePressedButton) return;
+  buttonsDown.delete(mousePressedButton);
+  window.dispatchEvent(
+    new KeyboardEvent("keyup", { key: `NDS_${mousePressedButton}` }),
+  );
+  mousePressedButton = null;
+};
+
+useKeyDown(({ ndsButton }) => {
+  if (ndsButton) buttonsDown.add(ndsButton);
+});
+
+useKeyUp(({ ndsButton }) => {
+  if (ndsButton) buttonsDown.delete(ndsButton);
+});
+
+useMouseUp(releaseButton);
+
 const ndsScale = computed(() => {
   const scaleX = (windowSize.width.value - 40) / 235;
   const scaleY = (windowSize.height.value - 40) / 431;
@@ -59,25 +102,77 @@ defineExpose({ ndsScale });
 
         <div class="nds2d-d-pad-shadow"></div>
         <div class="nds2d-d-pad">
-          <div class="nds2d-d-pad-base"></div>
-          <div class="nds2d-d-pad-light"></div>
-          <div class="nds2d-d-pad-tip nds2d-tip-up"></div>
-          <div class="nds2d-d-pad-tip nds2d-tip-down"></div>
-          <div class="nds2d-d-pad-tip nds2d-tip-left"></div>
-          <div class="nds2d-d-pad-tip nds2d-tip-right"></div>
-          <div class="nds2d-d-pad-marker nds2d-dpm-up"></div>
-          <div class="nds2d-d-pad-marker nds2d-dpm-down"></div>
-          <div class="nds2d-d-pad-marker nds2d-dpm-left"></div>
-          <div class="nds2d-d-pad-marker nds2d-dpm-right"></div>
+          <div class="nds2d-d-pad-inner" :style="dPadStyle">
+            <div class="nds2d-d-pad-base"></div>
+            <div class="nds2d-d-pad-light"></div>
+            <div
+              class="nds2d-d-pad-tip nds2d-tip-up"
+              :class="{ pressed: buttonsDown.has('UP') }"
+              @mousedown.prevent="pressButton('UP')"
+            ></div>
+            <div
+              class="nds2d-d-pad-tip nds2d-tip-down"
+              :class="{ pressed: buttonsDown.has('DOWN') }"
+              @mousedown.prevent="pressButton('DOWN')"
+            ></div>
+            <div
+              class="nds2d-d-pad-tip nds2d-tip-left"
+              :class="{ pressed: buttonsDown.has('LEFT') }"
+              @mousedown.prevent="pressButton('LEFT')"
+            ></div>
+            <div
+              class="nds2d-d-pad-tip nds2d-tip-right"
+              :class="{ pressed: buttonsDown.has('RIGHT') }"
+              @mousedown.prevent="pressButton('RIGHT')"
+            ></div>
+            <div class="nds2d-d-pad-marker nds2d-dpm-up"></div>
+            <div class="nds2d-d-pad-marker nds2d-dpm-down"></div>
+            <div class="nds2d-d-pad-marker nds2d-dpm-left"></div>
+            <div class="nds2d-d-pad-marker nds2d-dpm-right"></div>
+          </div>
         </div>
 
-        <div class="nds2d-button nds2d-btn-x">X</div>
-        <div class="nds2d-button nds2d-btn-a">A</div>
-        <div class="nds2d-button nds2d-btn-b">B</div>
-        <div class="nds2d-button nds2d-btn-y">Y</div>
+        <div
+          class="nds2d-button nds2d-btn-x"
+          :class="{ pressed: buttonsDown.has('X') }"
+          @mousedown.prevent="pressButton('X')"
+        >
+          X
+        </div>
+        <div
+          class="nds2d-button nds2d-btn-a"
+          :class="{ pressed: buttonsDown.has('A') }"
+          @mousedown.prevent="pressButton('A')"
+        >
+          A
+        </div>
+        <div
+          class="nds2d-button nds2d-btn-b"
+          :class="{ pressed: buttonsDown.has('B') }"
+          @mousedown.prevent="pressButton('B')"
+        >
+          B
+        </div>
+        <div
+          class="nds2d-button nds2d-btn-y"
+          :class="{ pressed: buttonsDown.has('Y') }"
+          @mousedown.prevent="pressButton('Y')"
+        >
+          Y
+        </div>
 
-        <div class="nds2d-small-button nds2d-start"></div>
-        <div class="nds2d-small-button nds2d-select"></div>
+        <div
+          class="nds2d-small-button nds2d-start"
+          :class="{ pressed: buttonsDown.has('START') }"
+          @mousedown.prevent="pressButton('START')"
+        ></div>
+        <div class="nds2d-small-button-label nds2d-start-label">START</div>
+        <div
+          class="nds2d-small-button nds2d-select"
+          :class="{ pressed: buttonsDown.has('SELECT') }"
+          @mousedown.prevent="pressButton('SELECT')"
+        ></div>
+        <div class="nds2d-small-button-label nds2d-select-label">SELECT</div>
 
         <div
           ref="hintsContainer"
@@ -335,6 +430,13 @@ defineExpose({ ndsScale });
   );
 }
 
+.nds2d-d-pad-inner {
+  position: absolute;
+  width: 100%;
+  height: 100%;
+  transition: transform 0.06s ease;
+}
+
 .nds2d-d-pad-base {
   position: absolute;
   width: 100%;
@@ -351,6 +453,10 @@ defineExpose({ ndsScale });
 
 .nds2d-d-pad-tip {
   position: absolute;
+  cursor: pointer;
+  transition:
+    filter 0.06s ease,
+    box-shadow 0.06s ease;
 }
 
 .nds2d-tip-up {
@@ -361,6 +467,11 @@ defineExpose({ ndsScale });
   box-shadow: inset 0 2px 3px -1px #444;
 }
 
+.nds2d-tip-up.pressed {
+  filter: brightness(0.75);
+  box-shadow: inset 0 6px 4px -6px #222;
+}
+
 .nds2d-tip-down {
   left: 19px;
   bottom: 0;
@@ -369,6 +480,11 @@ defineExpose({ ndsScale });
   box-shadow: inset 0 -2px 3px -1px #444;
 }
 
+.nds2d-tip-down.pressed {
+  filter: brightness(0.75);
+  box-shadow: inset 0 -6px 4px -6px #222;
+}
+
 .nds2d-tip-left {
   left: 0;
   top: 19px;
@@ -377,6 +493,11 @@ defineExpose({ ndsScale });
   box-shadow: inset 2px 0 3px -1px #444;
 }
 
+.nds2d-tip-left.pressed {
+  filter: brightness(0.75);
+  box-shadow: inset 6px 0 4px -6px #222;
+}
+
 .nds2d-tip-right {
   right: 0;
   top: 19px;
@@ -385,9 +506,15 @@ defineExpose({ ndsScale });
   box-shadow: inset -2px 0 3px -1px #444;
 }
 
+.nds2d-tip-right.pressed {
+  filter: brightness(0.75);
+  box-shadow: inset -6px 0 4px -6px #222;
+}
+
 .nds2d-d-pad-marker {
   position: absolute;
   background: #999;
+  pointer-events: none;
 }
 
 .nds2d-dpm-up,
@@ -424,6 +551,7 @@ defineExpose({ ndsScale });
 
 .nds2d-button {
   user-select: none;
+  cursor: pointer;
   position: absolute;
   width: 21px;
   height: 21px;
@@ -438,6 +566,16 @@ defineExpose({ ndsScale });
   box-shadow:
     3px 2px 3px -2px #111,
     inset 2px 2px 3px -1px #444;
+  transition:
+    box-shadow 0.06s ease,
+    transform 0.06s ease;
+}
+
+.nds2d-button.pressed {
+  box-shadow:
+    1px 1px 1px -1px #111,
+    inset 2px 2px 3px -1px #222;
+  transform: scale(0.91) translateY(1px);
 }
 
 .nds2d-btn-x {
@@ -462,6 +600,7 @@ defineExpose({ ndsScale });
 
 .nds2d-small-button {
   user-select: none;
+  cursor: pointer;
   position: absolute;
   width: 11px;
   height: 11px;
@@ -473,6 +612,16 @@ defineExpose({ ndsScale });
   box-shadow:
     3px 2px 3px -2px #111,
     inset 2px 2px 3px -1px #444;
+  transition:
+    box-shadow 0.06s ease,
+    transform 0.06s ease;
+}
+
+.nds2d-small-button.pressed {
+  box-shadow:
+    1px 1px 1px -1px #111,
+    inset 1px 1px 2px -1px #222;
+  transform: scale(0.88) translateY(1px);
 }
 
 .nds2d-select {
@@ -480,22 +629,21 @@ defineExpose({ ndsScale });
   right: 70px;
 }
 
-.nds2d-start::after {
+.nds2d-small-button-label {
   position: absolute;
-  content: "START";
   font-size: 7px;
   color: #999;
-  left: 15px;
-  top: 0px;
+  pointer-events: none;
 }
 
-.nds2d-select::after {
-  position: absolute;
-  content: "SELECT";
-  font-size: 7px;
-  color: #999;
-  left: 15px;
-  top: 0px;
+.nds2d-start-label {
+  bottom: 53px;
+  right: 44px;
+}
+
+.nds2d-select-label {
+  bottom: 29px;
+  right: 40px;
 }
 
 .nds2d-hints-container {