xabina/screen.adb

58 lines
3.3 KiB
Ada

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-- Copyright (c) 2023 - Ognjen 'xolatile' Milan Robovic
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-- Xabina is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either
-- version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the
-- implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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-- Experimental minimal terminal rogue-like game in Ada programming language. I used to write a lot of Ada programs some time ago, then went in full C and assembly mode, and came
-- back to Ada, but realized that I keep my folders messy... Since it's bothersome to find my old Ada projects and share them here, I decided that the most easy thing to do is to
-- write a new program in Ada, a tiny game. Work in progress, it's messy and ugly for now...
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with ada.text_io;
with core;
package body screen is
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procedure delete is begin ada.text_io.put (core.ESCAPE & "[2J"); end delete;
procedure offset is begin ada.text_io.put (core.ESCAPE & "[H"); end offset;
procedure hide_cursor is begin ada.text_io.put (core.ESCAPE & "[?25l"); end hide_cursor;
procedure show_cursor is begin ada.text_io.put (core.ESCAPE & "[?25h"); end show_cursor;
procedure new_line is begin ada.text_io.put (core.CARRIAGE_RETURN & core.LINE_FEED); end new_line;
procedure render_character (symbol : character := ' ';
colour : character := core.colour.white;
effect : character := core.effect.normal;
y : height := 0;
x : width := 0) is
begin
symbol_matrix (y, x) := symbol;
colour_matrix (y, x) := colour;
effect_matrix (y, x) := effect;
end render_character;
procedure render_buffer is
format : string (1 .. 12) := core.ESCAPE & "[E;3CmS" & core.ESCAPE & "[0m";
begin
offset;
for y in height
loop
for x in width
loop
format (8) := symbol_matrix (y, x);
format (6) := colour_matrix (y, x);
format (3) := effect_matrix (y, x);
ada.text_io.put (format);
end loop;
new_line;
end loop;
end render_buffer;
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end screen;