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text.zig
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const window = @import("window.zig");
const Character = [char_height]@Type(.{ .int = .{ .signedness = .unsigned, .bits = char_width } });
const char_width = 7;
const char_height = 10;
const gap_width = 9;
const gap_height = 6;
const cell_width = char_width + gap_width;
const cell_height = char_height + gap_height;
comptime {
if (cell_width != cell_height) unreachable;
if (cell_width != window.cell_size) unreachable;
}
const replacement = .{(1 << char_width) - 1} ** char_height;
const table: [0x80]Character = table: {
var result = characters;
@setEvalBranchQuota(result.len * 11);
// Reverse the rows of bits of all characters now to avoid doing it at runtime instead.
for (result, 0..) |character, index| {
for (0..char_height) |y| {
result[index][y] = @bitReverse(character[y]);
}
}
break :table result;
};
pub fn draw_character(character: u8, x: u16, y: u16, color: window.Color) void {
var relative_y: u16 = 0;
while (relative_y != char_height) : (relative_y += 1) {
window.draw_bits(char_width, table[character][relative_y], x, y + relative_y, color);
}
}
const miscellaneous1 = [_]Character{
.{ // Space
0b00000,
0b00000,
0b00000,
0b00000,
0b00000,
0b00000,
0b00000,
0b00000,
0b00000,
0b00000,
},
.{ // Exclamation mark
0b00100,
0b00100,
0b00100,
0b00100,
0b00100,
0b00100,
0b00000,
0b00100,
0b00100,
0b00000,
},
.{ // Double quote
0b01010,
0b01010,
0b00000,
0b00000,
0b00000,
0b00000,
0b00000,
0b00000,
0b00000,
0b00000,
},
.{ // Number sign
0b01010,
0b01010,
0b11111,
0b01010,
0b01010,
0b01010,
0b11111,
0b01010,
0b01010,
0b00000,
},
.{ // Dollar sign
0b00100,
0b01110,
0b10101,
0b10100,
0b01110,
0b00101,
0b10101,
0b01110,
0b00100,
0b00000,
},
.{ // Percent sign
0b11001,
0b11001,
0b00010,
0b00010,
0b00100,
0b01000,
0b01000,
0b10011,
0b10011,
0b00000,
},
.{ // Ampersand
0b00100,
0b01010,
0b01010,
0b00100,
0b01101,
0b10110,
0b10010,
0b10010,
0b01101,
0b00000,
},
.{ // Apostrophe
0b00100,
0b00100,
0b00000,
0b00000,
0b00000,
0b00000,
0b00000,
0b00000,
0b00000,
0b00000,
},
.{ // Left parenthesis
0b00010,
0b00100,
0b00100,
0b01000,
0b01000,
0b01000,
0b00100,
0b00100,
0b00010,
0b00000,
},
.{ // Right parenthesis
0b01000,
0b00100,
0b00100,
0b00010,
0b00010,
0b00010,
0b00100,
0b00100,
0b01000,
0b00000,
},
.{ // Asterisk
0b00100,
0b11111,
0b00100,
0b01010,
0b00000,
0b00000,
0b00000,
0b00000,
0b00000,
0b00000,
},
.{ // Plus sign
0b00000,
0b00000,
0b00100,
0b00100,
0b11111,
0b00100,
0b00100,
0b00000,
0b00000,
0b00000,
},
.{ // Comma
0b00000,
0b00000,
0b00000,
0b00000,
0b00000,
0b00000,
0b00000,
0b00000,
0b00100,
0b00100,
},
.{ // Hyphen-minus
0b00000,
0b00000,
0b00000,
0b00000,
0b11111,
0b00000,
0b00000,
0b00000,
0b00000,
0b00000,
},
.{ // Period
0b00000,
0b00000,
0b00000,
0b00000,
0b00000,
0b00000,
0b00000,
0b00000,
0b00100,
0b00000,
},
.{ // Slash
0b00001,
0b00010,
0b00010,
0b00100,
0b00100,
0b00100,
0b01000,
0b01000,
0b10000,
0b00000,
},
};
/// The Arabic numerals.
const digits = [10]Character{
.{ // 0
0b01110,
0b10001,
0b10001,
0b10001,
0b10101,
0b10001,
0b10001,
0b10001,
0b01110,
0b00000,
},
.{ // 1
0b00100,
0b01100,
0b10100,
0b00100,
0b00100,
0b00100,
0b00100,
0b00100,
0b01110,
0b00000,
},
.{ // 2
0b01110,
0b10001,
0b10001,
0b00001,
0b00010,
0b00100,
0b01000,
0b10000,
0b11111,
0b00000,
},
.{ // 3
0b01110,
0b10001,
0b00001,
0b00001,
0b01110,
0b00001,
0b00001,
0b10001,
0b01110,
0b00000,
},
.{ // 4
0b00011,
0b00101,
0b01001,
0b10001,
0b11111,
0b00001,
0b00001,
0b00001,
0b00001,
0b00000,
},
.{ // 5
0b11111,
0b10000,
0b10000,
0b10000,
0b11110,
0b00001,
0b00001,
0b10001,
0b01110,
0b00000,
},
.{ // 6
0b01110,
0b10001,
0b10000,
0b10000,
0b11110,
0b10001,
0b10001,
0b10001,
0b01110,
0b00000,
},
.{ // 7
0b11111,
0b00001,
0b00001,
0b00010,
0b00010,
0b00100,
0b00100,
0b01000,
0b01000,
0b00000,
},
.{ // 8
0b01110,
0b10001,
0b10001,
0b10001,
0b01110,
0b10001,
0b10001,
0b10001,
0b01110,
0b00000,
},
.{ // 9
0b01110,
0b10001,
0b10001,
0b10001,
0b01111,
0b00001,
0b00001,
0b10001,
0b01110,
0b00000,
},
};
const miscellaneous2 = [_]Character{
.{ // Colon
0b00000,
0b00000,
0b00100,
0b00100,
0b00000,
0b00100,
0b00100,
0b00000,
0b00000,
0b00000,
},
.{ // Semicolon
0b00000,
0b00000,
0b00100,
0b00100,
0b00000,
0b00100,
0b00100,
0b01000,
0b00000,
0b00000,
},
.{ // Less-than sign
0b00001,
0b00010,
0b00100,
0b01000,
0b10000,
0b01000,
0b00100,
0b00010,
0b00001,
0b00000,
},
.{ // Equal sign
0b00000,
0b00000,
0b00000,
0b11111,
0b00000,
0b11111,
0b00000,
0b00000,
0b00000,
0b00000,
},
.{ // Greater-than sign
0b10000,
0b01000,
0b00100,
0b00010,
0b00001,
0b00010,
0b00100,
0b01000,
0b10000,
0b00000,
},
.{ // Question mark
0b01110,
0b10001,
0b10001,
0b00001,
0b00010,
0b00100,
0b00100,
0b00000,
0b00100,
0b00000,
},
.{ // At sign
0b00110,
0b01001,
0b10011,
0b10101,
0b10101,
0b10101,
0b10010,
0b01000,
0b00110,
0b00000,
},
};
/// The uppercase Latin alphabet.
const uppercase_letters = [26]Character{
.{ // A
0b01110,
0b10001,
0b10001,
0b10001,
0b11111,
0b10001,
0b10001,
0b10001,
0b10001,
0b00000,
},
.{ // B
0b11110,
0b10001,
0b10001,
0b10001,
0b11110,
0b10001,
0b10001,
0b10001,
0b11110,
0b00000,
},
.{ // C
0b00110,
0b01001,
0b10000,
0b10000,
0b10000,
0b10000,
0b10000,
0b01001,
0b00110,
0b00000,
},
.{ // D
0b11100,
0b10010,
0b10001,
0b10001,
0b10001,
0b10001,
0b10001,
0b10010,
0b11100,
0b00000,
},
.{ // E
0b11111,
0b10000,
0b10000,
0b10000,
0b11111,
0b10000,
0b10000,
0b10000,
0b11111,
0b00000,
},
.{ // F
0b11111,
0b10000,
0b10000,
0b10000,
0b11111,
0b10000,
0b10000,
0b10000,
0b10000,
0b00000,
},
.{ // G
0b01110,
0b10001,
0b10001,
0b10000,
0b10111,
0b10001,
0b10001,
0b10001,
0b01110,
0b00000,
},
.{ // H
0b10001,
0b10001,
0b10001,
0b10001,
0b11111,
0b10001,
0b10001,
0b10001,
0b10001,
0b00000,
},
.{ // I
0b01110,
0b00100,
0b00100,
0b00100,
0b00100,
0b00100,
0b00100,
0b00100,
0b01110,
0b00000,
},
.{ // J
0b00111,
0b00010,
0b00010,
0b00010,
0b00010,
0b00010,
0b00010,
0b10010,
0b01100,
0b00000,
},
.{ // K
0b10001,
0b10001,
0b10010,
0b10100,
0b11000,
0b10100,
0b10010,
0b10001,
0b10001,
0b00000,
},
.{ // L
0b10000,
0b10000,
0b10000,
0b10000,
0b10000,
0b10000,
0b10000,
0b10000,
0b11111,
0b00000,
},
.{ // M
0b10001,
0b10001,
0b11011,
0b11011,
0b10101,
0b10101,
0b10001,
0b10001,
0b10001,
0b00000,
},
.{ // N
0b10001,
0b10001,
0b11001,
0b11001,
0b10101,
0b10011,
0b10011,
0b10001,
0b10001,
0b00000,
},
.{ // O
0b01110,
0b10001,
0b10001,
0b10001,
0b10001,
0b10001,
0b10001,
0b10001,
0b01110,
0b00000,
},
.{ // P
0b11110,
0b10001,
0b10001,
0b10001,
0b11110,
0b10000,
0b10000,
0b10000,
0b10000,
0b00000,
},
.{ // Q
0b01110,
0b10001,
0b10001,
0b10001,
0b10001,
0b10001,
0b10101,
0b10010,
0b01101,
0b00000,
},
.{ // R
0b11110,
0b10001,
0b10001,
0b10001,
0b11110,
0b10001,
0b10001,
0b10001,
0b10001,
0b00000,
},
.{ // S
0b01110,
0b10001,
0b10000,
0b10000,
0b01110,
0b00001,
0b00001,
0b10001,
0b01110,
0b00000,
},
.{ // T
0b11111,
0b00100,
0b00100,
0b00100,
0b00100,
0b00100,
0b00100,
0b00100,
0b00100,
0b00000,
},
.{ // U
0b10001,
0b10001,
0b10001,
0b10001,
0b10001,
0b10001,
0b10001,
0b10001,
0b01110,
0b00000,
},
.{ // V
0b10001,
0b10001,
0b10001,
0b10001,
0b01010,
0b01010,
0b01010,
0b00100,
0b00100,
0b00000,
},
.{ // W
0b10001,
0b10001,
0b10001,
0b10101,
0b10101,
0b11011,
0b11011,
0b10001,
0b10001,
0b00000,
},
.{ // X
0b10001,
0b10001,
0b01010,
0b01010,
0b00100,
0b01010,
0b01010,
0b10001,
0b10001,
0b00000,
},
.{ // Y
0b10001,
0b10001,
0b10001,
0b01010,
0b01010,
0b00100,
0b00100,
0b00100,
0b00100,
0b00000,
},
.{ // Z
0b11111,
0b00001,
0b00010,
0b00010,
0b00100,
0b01000,
0b01000,
0b10000,
0b11111,
0b00000,
},
};
const miscellaneous3 = [_]Character{
.{ // Left bracket
0b01110,
0b01000,
0b01000,
0b01000,
0b01000,
0b01000,
0b01000,
0b01000,
0b01110,
0b00000,
},
.{ // Backslash
0b10000,
0b01000,
0b01000,
0b00100,
0b00100,
0b00100,
0b00010,
0b00010,
0b00001,
0b00000,
},
.{ // Right bracket
0b01110,
0b00010,
0b00010,
0b00010,
0b00010,
0b00010,
0b00010,
0b00010,
0b01110,
0b00000,
},
.{ // Caret
0b00100,
0b01010,
0b10001,
0b00000,
0b00000,
0b00000,
0b00000,
0b00000,
0b00000,
0b00000,
},
.{ // Underscore
0b00000,
0b00000,
0b00000,
0b00000,
0b00000,
0b00000,
0b00000,
0b00000,
0b11111,
0b00000,
},
.{ // Backtick
0b10000,
0b01000,
0b00100,
0b00000,
0b00000,
0b00000,
0b00000,
0b00000,
0b00000,
0b00000,
},
};
const lowercase_letters = [26]Character{
.{ // a
0b00000,
0b00000,
0b00000,
0b01110,
0b00001,
0b01111,
0b10001,
0b10001,
0b01111,
0b00000,
},
.{ // b
0b10000,
0b10000,
0b10000,
0b11110,
0b10001,
0b10001,
0b10001,
0b10001,
0b11110,
0b00000,
},
.{ // c
0b00000,
0b00000,
0b00000,
0b01110,
0b10001,
0b10000,
0b10000,
0b10001,
0b01110,
0b00000,
},
.{ // d
0b00001,
0b00001,
0b00001,
0b01111,
0b10001,
0b10001,
0b10001,
0b10001,
0b01111,
0b00000,
},
.{ // e
0b00000,
0b00000,
0b00000,
0b01110,
0b10001,
0b11111,
0b10000,
0b10001,
0b01110,
0b00000,
},
.{ // f
0b00010,
0b00100,
0b00100,
0b01110,
0b00100,
0b00100,
0b00100,
0b00100,
0b00100,
0b00000,
},
.{ // g
0b00000,
0b00000,
0b00000,
0b01111,
0b10001,
0b10001,
0b01111,
0b00001,
0b10001,
0b01110,
},
.{ // h
0b10000,
0b10000,
0b10000,
0b11110,
0b10001,
0b10001,
0b10001,
0b10001,
0b10001,
0b00000,
},
.{ // i
0b00100,
0b00100,
0b00000,
0b00100,
0b00100,
0b00100,
0b00100,
0b00100,
0b00100,
0b00000,
},
.{ // j
0b00010,
0b00010,
0b00000,
0b00010,
0b00010,
0b00010,
0b00010,
0b00010,
0b01010,
0b00100,
},
.{ // k
0b10000,
0b10000,
0b10000,
0b10010,
0b10100,
0b11000,
0b10100,
0b10010,
0b10001,
0b00000,
},
.{ // l
0b01100,
0b00100,
0b00100,
0b00100,
0b00100,
0b00100,
0b00100,
0b00100,
0b00010,
0b00000,
},
.{ // m
0b00000,
0b00000,
0b00000,
0b11110,
0b10101,
0b10101,
0b10101,
0b10101,
0b10101,
0b00000,
},
.{ // n
0b00000,
0b00000,
0b00000,
0b11110,
0b10001,
0b10001,