From 6b2e5802d91d60f9d399818c542bb82677fbce06 Mon Sep 17 00:00:00 2001
From: cypress <motolegacy@proton.me>
Date: Tue, 28 Nov 2023 11:53:23 -0500
Subject: [PATCH] Support displaying Double-Tap 1.0 icon

---
 source/cl_hud.c   | 14 ++++++++++++--
 source/cl_parse.c |  5 +++++
 source/pr_cmds.c  | 31 ++++++++++++++++++++++++++++++-
 source/protocol.h |  2 +-
 4 files changed, 48 insertions(+), 4 deletions(-)

diff --git a/source/cl_hud.c b/source/cl_hud.c
index 61a5da1..272a4f1 100644
--- a/source/cl_hud.c
+++ b/source/cl_hud.c
@@ -36,6 +36,7 @@ qpic_t		*jugpic;
 qpic_t		*floppic;
 qpic_t		*staminpic;
 qpic_t		*doublepic;
+qpic_t 		*doublepic2;
 qpic_t		*speedpic;
 qpic_t		*deadpic;
 qpic_t 		*mulepic;
@@ -65,6 +66,7 @@ qpic_t      *fx_blood_rd;
 qboolean	sb_showscores;
 qboolean 	domaxammo;
 qboolean 	has_chaptertitle;
+qboolean 	doubletap_has_damage_buff;
 
 int  x_value, y_value;
 
@@ -130,6 +132,7 @@ void HUD_Init (void)
 	floppic = Draw_CachePic ("gfx/hud/flopper");
 	staminpic = Draw_CachePic ("gfx/hud/stamin");
 	doublepic = Draw_CachePic ("gfx/hud/double");
+	doublepic2 = Draw_CachePic ("gfx/hud/double2");
 	speedpic = Draw_CachePic ("gfx/hud/speed");
 	deadpic = Draw_CachePic ("gfx/hud/dead");
 	mulepic = Draw_CachePic ("gfx/hud/mule");
@@ -1128,12 +1131,19 @@ void HUD_Perks (void)
 	y = 2;
 	scale = 22;
 
+	// Double-Tap 2.0 specialty icon
+	qpic_t* double_tap_icon;
+	if (doubletap_has_damage_buff)
+		double_tap_icon = doublepic2;
+	else
+		double_tap_icon = doublepic;
+
 	// Draw second column first -- these need to be
 	// overlayed below the first column.
 	for (int i = 4; i < 8; i++) {
 		if (perk_order[i]) {
 			if (perk_order[i] == P_JUG) {Draw_StretchPic(x, y, jugpic, scale, scale);}
-			if (perk_order[i] == P_DOUBLE) {Draw_StretchPic(x, y, doublepic, scale, scale);}
+			if (perk_order[i] == P_DOUBLE) {Draw_StretchPic(x, y, double_tap_icon, scale, scale);}
 			if (perk_order[i] == P_SPEED) {Draw_StretchPic(x, y, speedpic, scale, scale);}
 			if (perk_order[i] == P_REVIVE) {Draw_StretchPic(x, y, revivepic, scale, scale);}
 			if (perk_order[i] == P_FLOP) {Draw_StretchPic(x, y, floppic, scale, scale);}
@@ -1151,7 +1161,7 @@ void HUD_Perks (void)
 	for (int i = 0; i < 4; i++) {
 		if (perk_order[i]) {
 			if (perk_order[i] == P_JUG) {Draw_StretchPic(x, y, jugpic, scale, scale);}
-			if (perk_order[i] == P_DOUBLE) {Draw_StretchPic(x, y, doublepic, scale, scale);}
+			if (perk_order[i] == P_DOUBLE) {Draw_StretchPic(x, y, double_tap_icon, scale, scale);}
 			if (perk_order[i] == P_SPEED) {Draw_StretchPic(x, y, speedpic, scale, scale);}
 			if (perk_order[i] == P_REVIVE) {Draw_StretchPic(x, y, revivepic, scale, scale);}
 			if (perk_order[i] == P_FLOP) {Draw_StretchPic(x, y, floppic, scale, scale);}
diff --git a/source/cl_parse.c b/source/cl_parse.c
index ced0ef9..9a673a7 100644
--- a/source/cl_parse.c
+++ b/source/cl_parse.c
@@ -1143,6 +1143,7 @@ CL_ParseServerMessage
 =====================
 */
 extern double bettyprompt_time;
+extern qboolean doubletap_has_damage_buff;
 void CL_ParseServerMessage (void)
 {
 	int			cmd;
@@ -1233,6 +1234,10 @@ void CL_ParseServerMessage (void)
 			crosshair_pulse_grenade = true;
 			break;
 
+		case svc_doubletap:
+			doubletap_has_damage_buff = MSG_ReadByte();
+			break;
+
 		case svc_bettyprompt:
 			bettyprompt_time = sv.time + 4;
 			break;
diff --git a/source/pr_cmds.c b/source/pr_cmds.c
index af4f223..31cfbdf 100644
--- a/source/pr_cmds.c
+++ b/source/pr_cmds.c
@@ -3299,6 +3299,34 @@ void PF_GrenadePulse(void)
 	MSG_WriteByte (&client->message, svc_pulse);
 }
 
+/*
+=================
+PF_SetDoubleTapVersion
+
+Server tells client which HUD icon
+to draw for Double-Tap (damage buff
+v.s. just rate of fire enhancement).
+
+nzp_setdoubletapver()
+=================
+*/
+void PF_SetDoubleTapVersion(void)
+{
+	client_t	*client;
+	int			entnum;
+	int 		state;
+
+	entnum = G_EDICTNUM(OFS_PARM0);
+	state = G_FLOAT(OFS_PARM1);
+
+	if (entnum < 1 || entnum > svs.maxclients)
+		return;
+
+	client = &svs.clients[entnum-1];
+	MSG_WriteByte (&client->message, svc_doubletap);
+	MSG_WriteByte (&client->message, state);
+}
+
 /*
 =================
 PF_BettyPrompt
@@ -3707,7 +3735,8 @@ ebfs_builtin_t pr_ebfs_builtins[] =
   { 502, "grenade_pulse", PF_GrenadePulse },
   { 503, "nzp_maxai", PF_MaxZombies },
   { 504, "nzp_bettyprompt", PF_BettyPrompt },
-  { 505, "nzp_setplayername", PF_SetPlayerName }
+  { 505, "nzp_setplayername", PF_SetPlayerName },
+  { 506, "nzp_setdoubletapver", PF_SetDoubleTapVersion }
 
 // 2001-11-15 DarkPlaces general builtin functions by Lord Havoc  end
 
diff --git a/source/protocol.h b/source/protocol.h
index 3e6635b..f40284b 100644
--- a/source/protocol.h
+++ b/source/protocol.h
@@ -153,7 +153,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 #define svc_pulse 			46
 #define svc_bettyprompt		47
 #define svc_playername 		48
-
+#define svc_doubletap		49
 
 //
 // client to server