From ae694bc0da98e45c5def20ac1d92f9d8aad65fd5 Mon Sep 17 00:00:00 2001
From: Kasullian <tomkasull@gmail.com>
Date: Wed, 10 Sep 2025 12:08:59 -0400
Subject: 3d view mouse control

---
 src/util/input.cpp | 9 +++++++++
 src/util/input.h   | 4 ++++
 2 files changed, 13 insertions(+)

(limited to 'src/util')

diff --git a/src/util/input.cpp b/src/util/input.cpp
index 4a786aa..7e94c47 100644
--- a/src/util/input.cpp
+++ b/src/util/input.cpp
@@ -27,6 +27,8 @@ void input_on_event( SDL_Event* e ) {
     case SDL_MOUSEMOTION: {
       input.mouse.pos.x = (F32)e->motion.x;
       input.mouse.pos.y = (F32)e->motion.y;
+      input.mouse.pos_delta.x = (F32)e->motion.xrel;
+      input.mouse.pos_delta.y = (F32)e->motion.yrel;
     } break;
     case SDL_KEYDOWN: {
       input.keys[e->key.keysym.sym & 0xff] = 1;
@@ -71,4 +73,11 @@ void input_on_mouse( I32 type, I32 x, I32 y ) {
 
 void input_frame_end() {
   input.mouse.wheel = 0;
+  input.mouse.pos_delta.x = 0;
+  input.mouse.pos_delta.y = 0;
+}
+
+void input_capture_mouse( bool capture ) {
+  input.mouse_captured = capture;
+  SDL_SetRelativeMouseMode( capture ? SDL_TRUE : SDL_FALSE );
 }
diff --git a/src/util/input.h b/src/util/input.h
index e174fe6..4885f0f 100644
--- a/src/util/input.h
+++ b/src/util/input.h
@@ -16,6 +16,7 @@ const U32 MOUSE_WHEEL  = 0x4;
 
 struct MOUSE_DATA {
   VEC2 pos;
+  VEC2 pos_delta;
   U8   left;
   U8   right;
   U8   middle;
@@ -27,6 +28,8 @@ using ON_INPUT_FN = std::function<void( SDL_Event* )>;
 struct INPUT_DATA {
   MOUSE_DATA mouse;
   U8         keys[0xff];
+  bool       mouse_captured;
+  F32        mouse_sensitivity = 1.0f;
 
   LIST<ON_INPUT_FN> on_input;
 };
@@ -37,5 +40,6 @@ extern void input_frame_end();
 extern void input_on_event( SDL_Event* e );
 extern void input_on_mouse( I32 type, I32 x, I32 y );
 extern void input_is_key_down( U32 key );
+extern void input_capture_mouse( bool capture );
 
 #define kb_down( key ) input_is_key_down( key )
-- 
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