From 217f4ff2cd6840b8eb7ae87a0db68a30265d07c3 Mon Sep 17 00:00:00 2001
From: girst <girst@users.noreply.github.com>
Date: Mon, 3 Sep 2018 15:24:58 +0200
Subject: [PATCH] remove vt220 support

too much hassle, not enough bandwidth
---
 README.md |  8 +++++---
 schemes.h | 43 ++-----------------------------------------
 viiper.c  |  5 +----
 3 files changed, 8 insertions(+), 48 deletions(-)

diff --git a/README.md b/README.md
index 1bdabe8..a7c2e4a 100644
--- a/README.md
+++ b/README.md
@@ -6,8 +6,8 @@ terminal + emoji = snek
 ## Requirements
 
 You'll need either a terminal emulator with good Unicode (Emoji) support and a
-compatible fonts, or an actual DEC VT220 to fully enjoy the graphics of this
-game. This is what I'd recommend:
+compatible fonts to fully enjoy the graphics of this game. This is what I'd
+recommend:
 
  - A VTE based terminal (like GNOME Terminal and a whole bunch of others)
  - Google Noto's Color Emoji Font (Fedora: `google-noto-emoji-color-fonts.noarch`)
@@ -20,6 +20,7 @@ game. This is what I'd recommend:
 
 ## TODO
 
+<!--
  - DONE ~~base game: fixed field size, fixed speed~~
  - DONE ~~food (unicode)~~
  - DONE ~~put 'sprites' into `schemes.h`~~
@@ -33,10 +34,11 @@ game. This is what I'd recommend:
  - DONE ~~score, increasing speed~~
  - DONE ~~bonus/special items: slower snake, shorter snake, etc.~~
  - DONE ~~wall-wrap-around mode?~~
+-->
+ - TODO more food items (to shape points distribution)
  - TODO decaying points? (more points the faster you get the food)
  - TODO predatory animals trying to eat the snake? (🐉, 🐊, 🐆, 🐅, 🦁, 🐗, 🦊, 🦅)
  - TODO fix all `grep -n 'TODO\|XXX\|\([^:]\|^\)//' *.[ch]`
- - TODO VT220 charset based on soft downloadable character set (->minesviiper)
  - TODO: find a better name
 
 ## Notes
diff --git a/schemes.h b/schemes.h
index 976e1c7..adaf299 100644
--- a/schemes.h
+++ b/schemes.h
@@ -23,12 +23,8 @@ struct scheme {
 	char* food[NUM_FOODS];
 	char* boni[NUM_BONI];
 
-	/* for en-/disabling e.g. DEC charset: */
-	char* init_seq;
-	char* reset_seq;
-
-	int cell_width; /* number of characters per cell */
-	int display_width; /* how wide a cell appears to be */
+	int cell_width; /* logical cell width */
+	int display_width; /* physical cell width */
 };
 
 struct scheme unic0de = {
@@ -98,39 +94,4 @@ struct scheme unic0de = {
 	.display_width = 2,
 };
 
-struct scheme vt220_charset = {
-	.border = {
-		{"\033#6\x6c","\x71","\x6b"},
-		{"\033#6\x78","    ","\x78"},
-		{"\033#6\x6d","\x71","\x6a"},
-		{  "=","","="  },
-	},
-	.permeable = {//TODO: ascii-colons?
-		{"\033#6\x6c","\x71","\x6b"},
-		{"\033#6\x78","    ","\x78"},
-		{"\033#6\x6d","\x71","\x6a"},
-		{  "=","","="  },
-	},
-
-	.snake = {
-		{"@","A",">","V","<"}, //head
-		{"#","#","#","#","#"},
-		{"#","#","#","#","#"},
-		{"#","#","#","#","#"},
-		{"#","#","#","#","#"},
-	},
-	.color = {"0", "0", "1"},
-
-	.food = { "$", "%", "&", },
-	.boni = { "\033Nx", "\033N|", "\033Ns", "\033Nf", "\033Nw", },
-
-	.init_seq = "\033(0\033*B\x0f"  /* G0=Graphics, G2=ASCII, invoke G0  */
-	            "\033[?3l",         /* disable 132 column mode (DECCOLM) */
-	.reset_seq = "\033(B"    /* reset to DEC Multinational Character Set */
-	             "\033[?3h", /* reenable DECCOLM (WARN: unconditionally!)*/
-
-	.cell_width = 1,
-	.display_width = 2,
-};
-
 #endif
diff --git a/viiper.c b/viiper.c
index 8b9a336..1735b2c 100644
--- a/viiper.c
+++ b/viiper.c
@@ -108,7 +108,6 @@ int main (int argc, char** argv) {
 				return 1;
 			}
 			break;
-		case 'd': op.sch = &vt220_charset; break;
 		case 'h':
 		default: 
 			fprintf (stderr, SHORTHELP LONGHELP, argv[0]);
@@ -176,7 +175,7 @@ int viiper(void) {
 	g.b.n = time(NULL) + BONUS_INTERVAL;
 	g.b.t = 0;
 
-	spawn_item(FOOD, rand() % NUM_FOODS, NULL); //TODO: shape distribution, so bigger values get selected less
+	spawn_item(FOOD, rand() % NUM_FOODS, NULL);
 
 	for(;;) {
 		switch (getctrlseq()) {
@@ -666,9 +665,7 @@ void screen_setup (int enable) {
 		printf ("\033[s\033[?47h"); /* save cursor, alternate screen */
 		printf ("\033[H\033[J"); /* reset cursor, clear screen */
 		printf ("\033[?25l"); /* hide cursor */
-		print (op.sch->init_seq); /* swich charset, if necessary */
 	} else {
-		print (op.sch->reset_seq); /* reset charset, if necessary */
 		printf ("\033[?25h"); /* show cursor */
 		printf ("\033[?47l\033[u"); /* primary screen, restore cursor */
 		raw_mode(0);
-- 
2.39.3