From 49120e51054eb4e4ebe11c8a2d4feff1fe1ca2e6 Mon Sep 17 00:00:00 2001
From: girst <girst@users.noreply.github.com>
Date: Mon, 3 Sep 2018 19:02:15 +0200
Subject: [PATCH] time freeze bonus

---
 schemes.h |  1 +
 viiper.c  | 17 ++++++++++++++++-
 viiper.h  |  1 +
 3 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/schemes.h b/schemes.h
index 732031c..e80cb37 100644
--- a/schemes.h
+++ b/schemes.h
@@ -92,6 +92,7 @@ struct scheme unic0de = {
 		[BONUS_SLOW] = "🐌",
 		[BONUS_FAST] = "🐇",
 		[BONUS_WRAP] = "🧱",
+		[BONUS_STOP] = "⏳", //alt: 🛑
 	},
 
 	.cell_width = 2,
diff --git a/viiper.c b/viiper.c
index 31abf04..4490fa6 100644
--- a/viiper.c
+++ b/viiper.c
@@ -53,6 +53,7 @@
 #define BONUS_INTERVAL 90 /* how often a bonus item is spawned */
 #define BONUS_DURATION 15 /* how long one can catch the bonus */
 #define BONUS_WARN      5 /* how long before the removal to warn */
+#define BONUS_STOP_NUM  5 /* how many steps the time freezes */
 
 struct game {
 	int w; /* field width */
@@ -65,6 +66,7 @@ struct game {
 	struct item* i; /* items (food, boni) */
 	struct bonus {
 		int t; /* bonus type (bitmask based on enum bonus_value) */
+		int s; /* steps left of time freeze bonus */
 		time_t n; /* time of next bonus item spawn */
 		time_t w; /* time of wall-wrap end */
 	} b; /* bonus-related values */
@@ -174,6 +176,7 @@ int viiper(void) {
 	g.p = 0;
 	g.k.n = 0;
 	g.b.n = time(NULL) + BONUS_INTERVAL;
+	g.b.s = 0;
 	g.b.t = 0;
 
 	spawn_item(FOOD, rand() % NUM_FOODS, NULL);
@@ -187,6 +190,9 @@ int viiper(void) {
 		case 'p': pause_game(); break;
 		case 'r': siglongjmp(game_over, GAME_START);
 		case 'q': siglongjmp(game_over, GAME_EXIT);
+case '\n':
+  spawn_item(BONUS, BONUS_STOP, NULL);
+  break;
 		case CTRL_'L':
 			screen_setup(1);
 			show_playfield();
@@ -194,6 +200,11 @@ int viiper(void) {
 		case 0x02: /* STX; gets sent when returning from SIGALRM */
 			continue;
 		}
+
+		if (g.b.s) { /* highjack keyboard function for time freeze */
+			snake_advance();
+			if (!--g.b.s) timer_setup(1);/*turn back on afterwards*/
+		}
 	}
 
 }
@@ -312,7 +323,7 @@ void consume_item (struct item* i) {
 			break;
 		}
 		snake_append(&g.s, -1, -1);
-		break;       /* will be reused as the head before it is drawn */
+		break; /* will be reused as the head before it is drawn */
 	case BONUS:
 		switch (i->v) {
 		case BONUS_SNIP:
@@ -340,6 +351,10 @@ void consume_item (struct item* i) {
 			g.b.t |= 1<<BONUS_WRAP;
 			show_playfield();
 			break;
+		case BONUS_STOP:
+			g.b.s = BONUS_STOP_NUM; /* stop the time for 5 steps */
+			timer_setup(0);
+			break;
 		}
 		g.b.n = time(NULL) + BONUS_INTERVAL; /*next bonus in x seconds*/
 		break;
diff --git a/viiper.h b/viiper.h
index 4b33638..5c83fd1 100644
--- a/viiper.h
+++ b/viiper.h
@@ -61,6 +61,7 @@ enum bonus_value {
 	BONUS_SLOW,
 	BONUS_FAST,
 	BONUS_WRAP,
+	BONUS_STOP,
 	NUM_BONI,
 };
 enum game_state {
-- 
2.39.3