Fix strobing.

Author: wojciech-graj

README.md

@@ -6,7 +6,7 @@
 
 Source-port of [doomgeneric](https://github.com/ozkl/doomgeneric). Does not have sound.
 
-You will need a WAD file (game data). If you don't own the game, the shareware version is freely available (e.g. [here](http://www.doomworld.com/3ddownloads/ports/shareware_doom_iwad.zip)).
+You will need a WAD file (game data). If you don't own the game, the shareware version is freely available.
 
 ## Build
 
@@ -49,21 +49,11 @@ Keybinds can be remapped in ```.default.cfg```
 
 ### Display
 
-Most terminals aren't designed for massive throughput, so the game cannot be played at full 320x200 resolution and the display should be scaled to minimize the strobing effect.
+Most terminals aren't designed for massive throughput, so the game cannot be played at full 320x200 resolution at high frames per second.
 
 Pass the command-line argument ```-scaling n``` to determine the level of scaling. Smaller numbers denote a larger display.
 
-Below you can find a table of recommended scales, based on subjective observations.
-
-|Terminal      |No Strobing|Some Strobing|
-|--------------|-----------|-------------|
-|Alacritty     |3          |2            |
-|Yakuake       |4          |2            |
-|Konsole       |4          |3            |
-|Xfce4-terminal|5          |3            |
-|Windows CMD   |-          |4 (severe)   |
-
-By default, a scale of 4 is used.
+A scale of 4 is used by default, and should work flawlessly on all terminals. Most terminals (excluding Windows CMD) should manage with scales up to and including 2.
 
 ### Input
 The following terminal input options are not mandatory but may improve input handling.

src/Makefile

@@ -11,22 +11,24 @@ else
 	VB=@
 endif
 
+# subdirectory for objects
+OBJDIR=build
+BINDIR=../doom_ascii
+
 ifeq ($(MAKECMDGOALS),windows)
 CC=i686-w64-mingw32-gcc-win32
+OUTPUT=$(BINDIR)/doom_ascii.exe
 else
 CC=gcc
 CFLAGS+=-DNORMALUNIX -DLINUX
+OUTPUT=$(BINDIR)/doom_ascii
 endif
 
 CFLAGS+=-Os -g
 LDFLAGS+=-Wl,--gc-sections
 CFLAGS+=-Wall -D_DEFAULT_SOURCE #-DSNDSERV -DUSEASM
 LIBS+=-lm
 
-# subdirectory for objects
-OBJDIR=build
-BINDIR=../doom_ascii
-OUTPUT=$(BINDIR)/doom_ascii
 
 SRC_DOOM = i_main.o dummy.o am_map.o doomdef.o doomstat.o dstrings.o d_event.o d_items.o d_iwad.o d_loop.o d_main.o d_mode.o d_net.o f_finale.o f_wipe.o g_game.o hu_lib.o hu_stuff.o info.o i_cdmus.o i_endoom.o i_joystick.o i_scale.o i_sound.o i_system.o i_timer.o memio.o m_argv.o m_bbox.o m_cheat.o m_config.o m_controls.o m_fixed.o m_menu.o m_misc.o m_random.o p_ceilng.o p_doors.o p_enemy.o p_floor.o p_inter.o p_lights.o p_map.o p_maputl.o p_mobj.o p_plats.o p_pspr.o p_saveg.o p_setup.o p_sight.o p_spec.o p_switch.o p_telept.o p_tick.o p_user.o r_bsp.o r_data.o r_draw.o r_main.o r_plane.o r_segs.o r_sky.o r_things.o sha1.o sounds.o statdump.o st_lib.o st_stuff.o s_sound.o tables.o v_video.o wi_stuff.o w_checksum.o w_file.o w_main.o w_wad.o z_zone.o w_file_stdc.o i_input.o i_video.o doomgeneric.o doomgeneric_ascii.o
 OBJS += $(addprefix $(OBJDIR)/, $(SRC_DOOM))

src/doomgeneric_ascii.c

@@ -160,8 +160,8 @@ void DG_DrawFrame()
 	*buf++ = '0';
 	*buf = 'm';
 
-	/* clear screen and set bold text*/
-	fputs("\033[1;1H\033[2J\033[1m", stdout);
+	/* move cursor to top left corner and set bold text*/
+	fputs("\033[;H\033[1m", stdout);
 
 	/* flush output buffer */
 	CALL_STDOUT(fputs(output_buffer, stdout), "DG_DrawFrame: fputs error %d");