From f8dc397539f27c601aa6f1f3ea0f6c1f177efd97 Mon Sep 17 00:00:00 2001
From: Jan Engelhardt <jengelh@inai.de>
Date: Wed, 1 May 2013 09:53:49 +0200
Subject: [PATCH 1/2] Add option to show health bar for all destructible mobjs
References: https://github.com/coelckers/prboom-plus/pull/274

The current health bar fails to show for Lost Souls.
In addition, showing it for other destructible objects (such as
barrels - or DEH modifications in that spirit) can be used to gauge
the objects' remaining life.
---
 prboom2/src/gl_main.c  |   10 +++++++++-
 prboom2/src/m_misc.c   |    1 +
 prboom2/src/r_things.c |    1 +
 prboom2/src/r_things.h |    1 +
 4 files changed, 12 insertions(+), 1 deletion(-)

Index: prboom2/src/gl_main.c
===================================================================
--- prboom2/src/gl_main.c.orig
+++ prboom2/src/gl_main.c
@@ -2467,9 +2467,17 @@ static void gld_DrawSprite(GLSprite *spr
   }
 }
 
+static int gld_EvaluateShowBar(mobj_t* thing)
+{
+  if (health_bar_shootables)
+    return thing->flags & MF_SHOOTABLE;
+  return (thing->flags & (MF_COUNTKILL | MF_CORPSE)) == MF_COUNTKILL;
+}
+
 static void gld_AddHealthBar(mobj_t* thing, GLSprite *sprite)
 {
-  if (((thing->flags & (MF_COUNTKILL | MF_CORPSE)) == MF_COUNTKILL) && (thing->health > 0))
+  if (thing->info->spawnhealth > 0 && thing->health > 0 &&
+      gld_EvaluateShowBar(thing))
   {
     GLHealthBar hbar;
     int health_percent = thing->health * 100 / thing->info->spawnhealth;
Index: prboom2/src/m_misc.c
===================================================================
--- prboom2/src/m_misc.c.orig
+++ prboom2/src/m_misc.c
@@ -997,6 +997,7 @@ default_t defaults[] =
   { "screenshot_dir", { NULL, &screenshot_dir }, { 0, "" }, UL, UL, def_str, ss_none },
   { "health_bar", { &health_bar }, { 0 }, 0, 1, def_bool, ss_stat },
   { "health_bar_full_length", { &health_bar_full_length }, { 1 }, 0, 1, def_bool, ss_stat },
+  { "health_bar_shootables", { &health_bar_shootables }, { 0 }, 0, 1, def_bool, ss_stat },
   { "health_bar_red", { &health_bar_red }, { 50 }, 0, 100, def_int, ss_stat },
   { "health_bar_yellow", { &health_bar_yellow }, { 99 }, 0, 100, def_int, ss_stat },
   { "health_bar_green", { &health_bar_green }, { 0 }, 0, 100, def_int, ss_stat },
Index: prboom2/src/r_things.c
===================================================================
--- prboom2/src/r_things.c.orig
+++ prboom2/src/r_things.c
@@ -75,6 +75,7 @@ int sprites_doom_order;
 
 int health_bar;
 int health_bar_full_length;
+int health_bar_shootables;
 int health_bar_red;
 int health_bar_yellow;
 int health_bar_green;
Index: prboom2/src/r_things.h
===================================================================
--- prboom2/src/r_things.h.orig
+++ prboom2/src/r_things.h
@@ -75,6 +75,7 @@ extern int sprites_doom_order;
 
 extern int health_bar;
 extern int health_bar_full_length;
+extern int health_bar_shootables;
 extern int health_bar_red;
 extern int health_bar_yellow;
 extern int health_bar_green;