diff options
Diffstat (limited to 'player/lua/assdraw.lua')
| -rw-r--r-- | player/lua/assdraw.lua | 91 |
1 files changed, 76 insertions, 15 deletions
diff --git a/player/lua/assdraw.lua b/player/lua/assdraw.lua index 8ff004e04b..06079d589b 100644 --- a/player/lua/assdraw.lua +++ b/player/lua/assdraw.lua @@ -1,5 +1,6 @@ local ass_mt = {} ass_mt.__index = ass_mt +local c = 0.551915024494 -- circle approximation local function ass_new() return setmetatable({ scale = 4, text = "" }, ass_mt) @@ -75,24 +76,84 @@ function ass_mt.rect_cw(ass, x0, y0, x1, y1) ass:line_to(x0, y1) end -function ass_mt.round_rect_cw(ass, x0, y0, x1, y1, r) - local c = 0.551915024494 * r -- circle approximation - ass:move_to(x0 + r, y0) - ass:line_to(x1 - r, y0) -- top line - if r > 0 then - ass:bezier_curve(x1 - r + c, y0, x1, y0 + r - c, x1, y0 + r) -- top right corner +function ass_mt.hexagon_cw(ass, x0, y0, x1, y1, r1, r2) + if r2 == nil then + r2 = r1 end - ass:line_to(x1, y1 - r) -- right line - if r > 0 then - ass:bezier_curve(x1, y1 - r + c, x1 - r + c, y1, x1 - r, y1) -- bottom right corner + ass:move_to(x0 + r1, y0) + if x0 ~= x1 then + ass:line_to(x1 - r2, y0) end - ass:line_to(x0 + r, y1) -- bottom line - if r > 0 then - ass:bezier_curve(x0 + r - c, y1, x0, y1 - r + c, x0, y1 - r) -- bottom left corner + ass:line_to(x1, y0 + r2) + if x0 ~= x1 then + ass:line_to(x1 - r2, y1) end - ass:line_to(x0, y0 + r) -- left line - if r > 0 then - ass:bezier_curve(x0, y0 + r - c, x0 + r - c, y0, x0 + r, y0) -- top left corner + ass:line_to(x0 + r1, y1) + ass:line_to(x0, y0 + r1) +end + +function ass_mt.hexagon_ccw(ass, x0, y0, x1, y1, r1, r2) + if r2 == nil then + r2 = r1 + end + ass:move_to(x0 + r1, y0) + ass:line_to(x0, y0 + r1) + ass:line_to(x0 + r1, y1) + if x0 ~= x1 then + ass:line_to(x1 - r2, y1) + end + ass:line_to(x1, y0 + r2) + if x0 ~= x1 then + ass:line_to(x1 - r2, y0) + end +end + +function ass_mt.round_rect_cw(ass, x0, y0, x1, y1, r1, r2) + if r2 == nil then + r2 = r1 + end + local c1 = c * r1 -- circle approximation + local c2 = c * r2 -- circle approximation + ass:move_to(x0 + r1, y0) + ass:line_to(x1 - r2, y0) -- top line + if r2 > 0 then + ass:bezier_curve(x1 - r2 + c2, y0, x1, y0 + r2 - c2, x1, y0 + r2) -- top right corner + end + ass:line_to(x1, y1 - r2) -- right line + if r2 > 0 then + ass:bezier_curve(x1, y1 - r2 + c2, x1 - r2 + c2, y1, x1 - r2, y1) -- bottom right corner + end + ass:line_to(x0 + r1, y1) -- bottom line + if r1 > 0 then + ass:bezier_curve(x0 + r1 - c1, y1, x0, y1 - r1 + c1, x0, y1 - r1) -- bottom left corner + end + ass:line_to(x0, y0 + r1) -- left line + if r1 > 0 then + ass:bezier_curve(x0, y0 + r1 - c1, x0 + r1 - c1, y0, x0 + r1, y0) -- top left corner + end +end + +function ass_mt.round_rect_ccw(ass, x0, y0, x1, y1, r1, r2) + if r2 == nil then + r2 = r1 + end + local c1 = c * r1 -- circle approximation + local c2 = c * r2 -- circle approximation + ass:move_to(x0 + r1, y0) + if r1 > 0 then + ass:bezier_curve(x0 + r1 - c1, y0, x0, y0 + r1 - c1, x0, y0 + r1) -- top left corner + end + ass:line_to(x0, y1 - r1) -- left line + if r1 > 0 then + ass:bezier_curve(x0, y1 - r1 + c1, x0 + r1 - c1, y1, x0 + r1, y1) -- bottom left corner + end + ass:line_to(x1 - r2, y1) -- bottom line + if r2 > 0 then + ass:bezier_curve(x1 - r2 + c2, y1, x1, y1 - r2 + c2, x1, y1 - r2) -- bottom right corner + end + ass:line_to(x1, y0 + r2) -- right line + if r2 > 0 then + ass:bezier_curve(x1, y0 + r2 - c2, x1 - r2 + c2, y0, x1 - r2, y0) -- top right corner end end |