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|
MAX_ATTRS :: 7;
Graphics_Mode :: struct {
foreground : Color;
background : Color;
attr_flags : enum_flags u8 {
F_BOLD :: 0x1;
F_DIM :: 0x2;
F_ITALIC :: 0x4;
F_UNDERLINE :: 0x8;
F_BLINKING :: 0x10;
F_INVERSE :: 0x20;
F_STRIKETHROUGH :: 0x40;
}
// attrs : [MAX_ATTRS]bool;
// 0 - bold (on/off/keep)
// 1 - dim/faint
// 2 - italic
// 3 - underline
// 4 - blinking
// 5 - inverse
// 6 - strikethrough
fcol256 : u8;
bcol256 : u8;
}
Color :: enum u8 {
RESET :: 0;
DEFAULT :: 39;
COLOR256 :: 38;
BLACK :: 30;
RED :: 31;
GREEN :: 32;
YELLOW :: 33;
BLUE :: 34;
MAGENTA :: 35;
CYAN :: 36;
WHITE :: 37;
BRIGHT_BLACK :: 90;
BRIGHT_RED :: 91;
BRIGHT_GREEN :: 92;
BRIGHT_YELLOW :: 93;
BRIGHT_BLUE :: 94;
BRIGHT_MAGENTA :: 95;
BRIGHT_CYAN :: 96;
BRIGHT_WHITE :: 97;
}
Attr :: enum u8 {
BOLD :: 1;
DIM :: 2;
ITALIC :: 3;
UNDERLINE :: 4;
BLINKING :: 5;
INVERSE :: 7;
STRIKETHROUGH :: 9;
BOLD_AND_DIM_OFF :: 22;
ITALIC_OFF :: 23;
UNDERLINE_OFF :: 24;
BLINKING_OFF :: 25;
INVERSE_OFF :: 27;
STRIKETHROUGH_OFF :: 29;
}
make_graphics_mode :: (foreground := Color.DEFAULT, background := Color.DEFAULT, bold := false, dim := false, italic := false, underline := false, blinking := false, inverse := false, strikethrough := false, fcol256 :u8= 0, bcol256 :u8= 0) -> Graphics_Mode {
result : Graphics_Mode;
result.foreground = foreground;
result.background = xx (background + 10);
if bold result.attr_flags |= .F_BOLD;
if dim result.attr_flags |= .F_DIM;
if italic result.attr_flags |= .F_ITALIC;
if underline result.attr_flags |= .F_UNDERLINE;
if blinking result.attr_flags |= .F_BLINKING;
if inverse result.attr_flags |= .F_INVERSE;
if strikethrough result.attr_flags |= .F_STRIKETHROUGH;
//========
// result.attrs[0] = bold;
// result.attrs[1] = dim;
// result.attrs[2] = italic;
// result.attrs[3] = underline;
// result.attrs[4] = blinking;
// result.attrs[5] = inverse;
// result.attrs[6] = strikethrough;
result.fcol256 = fcol256;
result.bcol256 = bcol256;
return result;
}
Char :: struct {
code : u32;
#place code;
codes : [4]u8 = ---;
mode : Graphics_Mode;
}
make_char :: (code : u32, foreground := Color.DEFAULT, background := Color.DEFAULT, bold := false, dim := false, italic := false, underline := false, blinking := false, inverse := false, strikethrough := false, fcol256 :u8= 0, bcol256 :u8= 0) -> Char {
return .{code = code, mode = make_graphics_mode(foreground, background, bold, dim, italic, underline, blinking, inverse, strikethrough, fcol256, bcol256)};
}
length :: inline (c : Char) -> u8 {
return length_code(c.code);
}
operator== :: (c1 : Char, c2 : Char) -> bool {
return c1.code == c2.code && c1.mode == c2.mode;
}
operator== :: (m1 : Graphics_Mode, m2 : Graphics_Mode) -> bool {
if m1.foreground != m2.foreground return false;
if m1.background != m2.background return false;
if m1.fcol256 != m2.fcol256 return false;
if m1.bcol256 != m2.bcol256 return false;
if m1.attr_flags != m2.attr_flags return false;
return true;
}
find_best_char :: (p : Vector3, use_mix : bool) -> Char {
cast_255 :: (x : float) -> s32 {
return clamp(cast(s32)(x * 255 + .5), 0, 255);
}
return find_best_char(ivec3.{cast_255(p.x), cast_255(p.y), cast_255(p.z)}, use_mix);
}
find_best_char :: (p : u8vec3, use_mix : bool) -> Char {
return find_best_char(cast_vec(s32, p), use_mix);
}
find_best_char :: (_p : ivec3, use_mix : bool) -> Char {
p := _p;
to_6level :: (x : s32) -> u8, s32 {
a := u8.[
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 3,
3, 3, 3, 3, 3, 3, 3, 3,
3, 4, 4, 4, 4, 4, 4, 4,
4, 4, 4, 5, 5, 5, 5, 5,
][clamp(x, 0, 255) >> 2];
return a, s32.[0, 87, 135, 175, 215, 255][a];
}
to_6level :: (v : ivec3) -> u8vec3, ivec3, dist:int {
i : u8vec3;
h : ivec3;
i.x, h.x = to_6level(v.x);
i.y, h.y = to_6level(v.y);
i.z, h.z = to_6level(v.z);
w := v - h;
return i, h, w.x * w.x + w.y * w.y + w.z * w.z;
}
col_code :: (v : u8vec3) -> u8 { return 16 + 36 * v.x + 6 * v.y + v.z; }
b_6, b_256 := to_6level(p);
code_00, code_25, code_50, code_75 := #run utf8(" "), #run utf8("░"), #run utf8("▒"), #run utf8("▓");
result := make_char(
code_00,
foreground = .COLOR256,
background = .COLOR256,
bcol256 = col_code(b_6)
);
if use_mix {
f_6_25, f_256_25, dist_25 := to_6level(p * 4 - b_256 * 3);
f_6_50, f_256_50, dist_50 := to_6level(p * 2 - b_256);
f_6_75, f_256_75, dist_75 := to_6level((p * 4 - b_256) / 3);
if dist_25 > dist_50 then f_6_25, code_25, dist_25 = f_6_50, code_50, dist_50;
if dist_25 > dist_75 then f_6_25, code_25, dist_25 = f_6_75, code_75, dist_75;
result.code = code_25;
result.mode.fcol256 = col_code(f_6_25);
}
return result;
}
#scope_file
#import "Math";
|
