From 0e6b1bc4a15f598d5eab507cbbe0f11410d5df1f Mon Sep 17 00:00:00 2001
From: Paweł Redman <pawel.redman@gmail.com>
Date: Sun, 29 Mar 2020 16:25:18 +0200
Subject: A simple speedometer

---
 src/cgame/cg_draw.c  | 58 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 src/cgame/cg_local.h |  5 +++++
 src/cgame/cg_main.c  |  2 ++
 3 files changed, 65 insertions(+)

diff --git a/src/cgame/cg_draw.c b/src/cgame/cg_draw.c
index e5e1894..33a275a 100644
--- a/src/cgame/cg_draw.c
+++ b/src/cgame/cg_draw.c
@@ -3019,6 +3019,63 @@ static void CG_DrawCenterString( void )
 
 //==============================================================================
 
+/*
+==============
+CG_DrawSpeed
+
+Ideally this should be a part of the HUD but that would require updating
+all the custom ones
+==============
+*/
+static void CG_DrawSpeed( void )
+{
+  vec4_t white = { 1.0f, 1.0f, 1.0f, 0.6f };
+  vec3_t xyvelocity;
+  int x, y;
+  float speed, dot;
+
+  switch( cg_drawSpeed.integer & 3 )
+  {
+    case 0:
+      return;
+
+    case 1:
+      x = 8;
+      y = 360;
+      break;
+
+    case 2:
+      x = 360;
+      y = 240;
+      break;
+
+    case 3:
+      x = 570;
+      y = 200;
+      break;
+  }
+
+  if( cg_drawSpeed.integer & 4 )
+  {
+    speed = VectorLength( cg.predictedPlayerState.velocity );
+  }
+  else
+  {
+    dot = DotProduct( cg.predictedPlayerState.velocity, cg.predictedPlayerState.grapplePoint );
+    VectorMA( cg.predictedPlayerState.velocity, -dot, cg.predictedPlayerState.grapplePoint, xyvelocity );
+    speed = VectorLength( xyvelocity );
+  }
+
+  if( speed > cg.topSpeed || cg.time > cg.topSpeedTime + 3000 )
+  {
+    cg.topSpeed = speed;
+    cg.topSpeedTime = cg.time;
+  }
+
+  CG_Text_Paint( x, y, 0.3f, white, va( "%.0f %.0f", cg.topSpeed, speed),
+                 0, 0, ITEM_TEXTSTYLE_NORMAL );
+}
+
 //FIXME: both vote notes are hardcoded, change to ownerdrawn?
 
 /*
@@ -3288,6 +3345,7 @@ static void CG_Draw2D( void )
   else if( cg_drawStatus.integer )
     Menu_Paint( defaultMenu, qtrue );
 
+  CG_DrawSpeed( );
   CG_DrawVote( );
   CG_DrawTeamVote( );
   CG_DrawFollow( );
diff --git a/src/cgame/cg_local.h b/src/cgame/cg_local.h
index 83c3162..e68e94b 100644
--- a/src/cgame/cg_local.h
+++ b/src/cgame/cg_local.h
@@ -1140,6 +1140,10 @@ typedef struct
   playerState_t savedPmoveStates[ NUM_SAVED_STATES ];
   int           stateHead, stateTail;
   int           ping;
+
+  // speedometer
+  float         topSpeed;
+  int           topSpeedTime;
 } cg_t;
 
 
@@ -1429,6 +1433,7 @@ extern  vmCvar_t    cg_drawTeamOverlay;
 extern  vmCvar_t    cg_teamOverlayUserinfo;
 extern  vmCvar_t    cg_crosshairX;
 extern  vmCvar_t    cg_crosshairY;
+extern  vmCvar_t    cg_drawSpeed;
 extern  vmCvar_t    cg_drawStatus;
 extern  vmCvar_t    cg_draw2D;
 extern  vmCvar_t    cg_animSpeed;
diff --git a/src/cgame/cg_main.c b/src/cgame/cg_main.c
index c2e55b8..89a4c5c 100644
--- a/src/cgame/cg_main.c
+++ b/src/cgame/cg_main.c
@@ -138,6 +138,7 @@ vmCvar_t  cg_drawCrosshairNames;
 vmCvar_t  cg_drawRewards;
 vmCvar_t  cg_crosshairX;
 vmCvar_t  cg_crosshairY;
+vmCvar_t  cg_drawSpeed;
 vmCvar_t  cg_draw2D;
 vmCvar_t  cg_drawStatus;
 vmCvar_t  cg_animSpeed;
@@ -283,6 +284,7 @@ static cvarTable_t cvarTable[ ] =
   { &cg_drawRewards, "cg_drawRewards", "1", CVAR_ARCHIVE },
   { &cg_crosshairX, "cg_crosshairX", "0", CVAR_ARCHIVE },
   { &cg_crosshairY, "cg_crosshairY", "0", CVAR_ARCHIVE },
+  { &cg_drawSpeed, "cg_drawSpeed", "0", CVAR_ARCHIVE },
   { &cg_brassTime, "cg_brassTime", "2500", CVAR_ARCHIVE },
   { &cg_simpleItems, "cg_simpleItems", "0", CVAR_ARCHIVE },
   { &cg_addMarks, "cg_marks", "1", CVAR_ARCHIVE },
-- 
cgit