From 0d97b47728734d199e0204c642af0d3cc528553d Mon Sep 17 00:00:00 2001
From: John Alanbrook <john@pockle.world>
Date: Sat, 12 Jul 2025 22:38:18 -0500
Subject: [PATCH] support for gamepad events

---
 source/cell.c          |  2 +-
 source/qjs_sdl_input.c | 16 +++++++++++++---
 2 files changed, 14 insertions(+), 4 deletions(-)

diff --git a/source/cell.c b/source/cell.c
index 1ea75475..f8a99d1e 100644
--- a/source/cell.c
+++ b/source/cell.c
@@ -877,7 +877,7 @@ int main(int argc, char **argv)
     profile_enabled = 1; script_start = 2;
   }
 
-  if (!SDL_Init(SDL_INIT_EVENTS)) {
+  if (!SDL_Init(SDL_INIT_EVENTS | SDL_INIT_GAMEPAD)) {
     printf("CRITICAL ERROR: %s\n", SDL_GetError());
     exit(1);
   }
diff --git a/source/qjs_sdl_input.c b/source/qjs_sdl_input.c
index 40032748..44af8ddc 100644
--- a/source/qjs_sdl_input.c
+++ b/source/qjs_sdl_input.c
@@ -653,16 +653,26 @@ static void event2wota_write(WotaBuffer *wb, const SDL_Event *e, int c) {
         wota_write_text(wb, "which");
         wota_write_number(wb, (double)e->gaxis.which);
         wota_write_text(wb, "axis");
-        wota_write_number(wb, (double)e->gaxis.axis);
+        wota_write_text(wb, SDL_GetGamepadStringForAxis(e->gaxis.axis));
         wota_write_text(wb, "value");
-        wota_write_number(wb, (double)e->gaxis.value);
+        // Normalize axis values
+        double normalized_value;
+        if (e->gaxis.axis == SDL_GAMEPAD_AXIS_LEFT_TRIGGER || 
+            e->gaxis.axis == SDL_GAMEPAD_AXIS_RIGHT_TRIGGER) {
+            // Triggers: 0 to 32767 -> 0 to 1
+            normalized_value = (double)e->gaxis.value / 32767.0;
+        } else {
+            // Thumbsticks: -32768 to 32767 -> -1 to 1
+            normalized_value = (double)e->gaxis.value / 32767.0;
+        }
+        wota_write_number(wb, normalized_value);
         break;
     case SDL_EVENT_GAMEPAD_BUTTON_DOWN:
     case SDL_EVENT_GAMEPAD_BUTTON_UP:
         wota_write_text(wb, "which");
         wota_write_number(wb, (double)e->gbutton.which);
         wota_write_text(wb, "button");
-        wota_write_number(wb, (double)e->gbutton.button);
+        wota_write_text(wb, SDL_GetGamepadStringForButton(e->gbutton.button));
         wota_write_text(wb, "down");
         wota_write_sym(wb, e->gbutton.down ? WOTA_TRUE : WOTA_FALSE);
         break;