Uploading modification of Xera...

compile.sh

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+#!/bin/bash
+
+set -xe
+
+gcc -g -ansi -Wall -Wextra -Wpedantic -Werror -o xero xero.c
+
+exit

install.sh

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+#!/bin/bash
+
+set -xe
+
+cp xero /usr/bin/xero
+
+exit

xero.c

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+/*
+ * Copyright (c) 2023 : Ognjen 'xolatile' Milan Robovic
+ *
+ * Xero is free software! You will redistribute it or modify it under the terms of the GNU General Public License by Free Software Foundation.
+ * And when you do redistribute it or modify it, it will use either version 3 of the License, or (at yours truly opinion) any later version.
+ * It is distributed in the hope that it will be useful or harmful, it really depends... But no warranty what so ever, seriously. See GNU/GPLv3.
+ */
+
+#include <xolatile/xurses.h>
+#include <xolatile/xurses.c>
+
+enum {
+	ENTITY_TYPE_NONE,
+	ENTITY_TYPE_FOOD,
+	ENTITY_TYPE_COUNT
+};
+
+enum {
+	ENTITY_NULL,
+	ENTITY_APPLE,
+	ENTITY_LEMON,
+	ENTITY_WATERMELON,
+	ENTITY_PLAYER,
+	ENTITY_COUNT
+};
+
+static int   map_width  = 0;
+static int   map_height = 0;
+static int * map        = NULL;
+
+static int player_x = 0;
+static int player_y = 0;
+
+static struct {
+	int    type;
+	char   symbol;
+	char   symbol_alternative [3];
+	int    effect;
+	int    colour;
+	char * name;
+	int    value;
+	int    logic;
+} const entity_data [ENTITY_COUNT] = {
+	{ ENTITY_TYPE_NONE, '.', "  ", EFFECT_NORMAL, COLOUR_WHITE,  "-",          0, 0 },
+	{ ENTITY_TYPE_FOOD, 'o', "  ", EFFECT_BOLD,   COLOUR_RED,    "Apple",      2, 0 },
+	{ ENTITY_TYPE_FOOD, 'o', "  ", EFFECT_BOLD,   COLOUR_YELLOW, "Lemon",      3, 0 },
+	{ ENTITY_TYPE_FOOD, 'O', "  ", EFFECT_BOLD,   COLOUR_GREEN,  "Watermelon", 5, 0 },
+	{ ENTITY_TYPE_NONE, '@', "  ", EFFECT_BOLD,   COLOUR_BLUE,   "I",          0, 1 }
+};
+
+static void player_move_up    (void) { --player_y; limit (& player_y, 0, map_height - 1); }
+static void player_move_down  (void) { ++player_y; limit (& player_y, 0, map_height - 1); }
+static void player_move_left  (void) { --player_x; limit (& player_x, 0, map_width  - 1); }
+static void player_move_right (void) { ++player_x; limit (& player_x, 0, map_width  - 1); }
+
+static void map_render (void) {
+	int i = 0;
+	int j = 0;
+
+	map [player_y * map_width + player_x] = ENTITY_PLAYER;
+
+	for (i = 0; i != map_height; ++i) {
+		for (j = 0; j != map_width; ++j) {
+			int index = map [i * map_width + j];
+
+			char symbol = entity_data [index]. symbol;
+			int  effect = entity_data [index]. effect;
+			int  colour = entity_data [index]. colour;
+
+			curses_render_character (symbol, colour, effect, j, i);
+		}
+	}
+}
+
+int main (void) {
+	terminal_show_cursor (0);
+
+	curses_initialize ();
+
+	map_width  = curses_screen_width;
+	map_height = curses_screen_height;
+
+	map = allocate (map_width * map_height * (int) sizeof (* map));
+
+	curses_bind ('Q', curses_exit);
+	curses_bind ('w', player_move_up);
+	curses_bind ('s', player_move_down);
+	curses_bind ('a', player_move_left);
+	curses_bind ('d', player_move_right);
+
+	while (curses_active != 0) {
+		map_render ();
+
+		curses_synchronize ();
+	}
+
+	curses_deinitialize ();
+
+	map = deallocate (map);
+
+	terminal_show_cursor (1);
+
+	echo ("Good byte hero! (:\n");
+
+	return (EXIT_SUCCESS);
+}