From fd8781bad61262e8a7ff92974d27b18d866dcb14 Mon Sep 17 00:00:00 2001
From: Roman Fomin <rfomin@gmail.com>
Date: Tue, 19 Oct 2021 15:25:52 +0700
Subject: [PATCH] config settings for mouse acceleration (#312)

* config settings for mouse acceleration

* fix type

* use percent
---
 Source/i_video.c |  7 +++++--
 Source/m_misc.c  | 16 ++++++++++++++++
 2 files changed, 21 insertions(+), 2 deletions(-)

diff --git a/Source/i_video.c b/Source/i_video.c
index a2ca1bd9..ce0064d8 100644
--- a/Source/i_video.c
+++ b/Source/i_video.c
@@ -746,8 +746,9 @@ void I_GetEvent(void)
 // This is to combine all mouse movement for a tic into one mouse
 // motion event.
 
-static const float mouse_acceleration = 1.0; // 2.0;
-static const int mouse_threshold = 0; // 10;
+static float mouse_acceleration = 1.0; // 2.0;
+int cfg_mouse_acceleration;
+int mouse_threshold; // 10;
 
 static int AccelerateMouse(int val)
 {
@@ -1270,6 +1271,8 @@ static void I_InitGraphicsMode(void)
    if(firsttime)
    {
       I_InitKeyboard();
+      // translate config value (as percent) to float
+      mouse_acceleration = (float)cfg_mouse_acceleration / 100;
       firsttime = false;
 
       if(M_CheckParm("-hires"))
diff --git a/Source/m_misc.c b/Source/m_misc.c
index 8ef3723b..68e7bb1f 100644
--- a/Source/m_misc.c
+++ b/Source/m_misc.c
@@ -84,6 +84,8 @@ extern int cfg_scalefactor; // haleyjd 05/11/09
 extern int cfg_aspectratio; // haleyjd 05/11/09
 extern int fullscreen; // [FG] save fullscren mode
 extern boolean flipcorpses; // [crispy] randomly flip corpse, blood and death animation sprites
+extern int cfg_mouse_acceleration;
+extern int mouse_threshold;
 
 extern char *chat_macros[], *wad_files[], *deh_files[];  // killough 10/98
 
@@ -374,6 +376,20 @@ default_t defaults[] = {
     "adjust vertical (y) mouse sensitivity"
   },
 
+  {
+    "cfg_mouse_acceleration",
+    (config_t *) &cfg_mouse_acceleration, NULL,
+    {100}, {100,UL}, number, ss_none, wad_no,
+    "adjust mouse acceleration (100% - no acceleration)"
+  },
+
+  {
+    "mouse_threshold",
+    (config_t *) &mouse_threshold, NULL,
+    {0}, {0,UL}, number, ss_none, wad_no,
+    "adjust mouse acceleration threshold"
+  },
+
   {
     "sfx_volume",
     (config_t *) &snd_SfxVolume, NULL,