mtcontrib/signs_lib
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fix out-of-bounds textures in [combine

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This commit is contained in:
OgelGames 2024-04-19 23:33:04 +10:00
parent e5f73438ce
commit 115563df9d
1 changed files with 25 additions and 20 deletions
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45
api.lua
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@ -470,8 +470,8 @@ local math_max = math.max
local function fill_line(x, y, w, c, font_size, colorbgw)
c = c or "0"
local tex = { }
for xx = 0, math.max(0, w), colorbgw do
table.insert(tex, (":%d,%d=signs_lib_color_"..font_size.."px_%s.png"):format(x + xx, y, c))
for xx = x, w, colorbgw do
table.insert(tex, (":%d,%d=signs_lib_color_"..font_size.."px_%s.png"):format(xx, y, c))
end
return table.concat(tex)
end
@ -583,8 +583,8 @@ local function make_line_texture(line, lineno, pos, line_width, line_height, cwi
end
end
if w then
width = width + w + 1
if width >= (line_width - cwidth_tab[" "]) then
width = width + w
if width > line_width then
width = 0
else
maxw = math_max(width, maxw)
@ -607,6 +607,7 @@ local function make_line_texture(line, lineno, pos, line_width, line_height, cwi
off = ch_offs,
tex = tex,
col = ("%X"):format(cur_color),
w = w,
})
end
ch_offs = ch_offs + w
@ -615,8 +616,8 @@ local function make_line_texture(line, lineno, pos, line_width, line_height, cwi
else
local w = cwidth_tab[c]
if w then
width = width + w + 1
if width >= (line_width - cwidth_tab[" "]) then
width = width + w
if width > line_width then
width = 0
else
maxw = math_max(width, maxw)
@ -626,6 +627,7 @@ local function make_line_texture(line, lineno, pos, line_width, line_height, cwi
off = ch_offs,
tex = char_tex(font_name, c),
col = ("%X"):format(cur_color),
w = w,
})
end
ch_offs = ch_offs + w
@ -633,7 +635,7 @@ local function make_line_texture(line, lineno, pos, line_width, line_height, cwi
end
i = i + 1
end
width = width + cwidth_tab[" "] + 1
width = width + cwidth_tab[" "]
maxw = math_max(width, maxw)
table.insert(words, { chars=chars, w=ch_offs })
end
@ -642,7 +644,8 @@ local function make_line_texture(line, lineno, pos, line_width, line_height, cwi
local texture = { }
local start_xpos = math.floor((line_width - maxw) / 2) + def.x_offset
local start_xpos = math.max(0, math.floor((line_width - maxw) / 2)) + def.x_offset
local end_xpos = math.min(start_xpos + maxw, line_width)
local xpos = start_xpos
local ypos = (line_height + def.line_spacing)* lineno + def.y_offset
@ -651,31 +654,33 @@ local function make_line_texture(line, lineno, pos, line_width, line_height, cwi
for word_i, word in ipairs(words) do
local xoffs = (xpos - start_xpos)
if (xoffs > 0) and ((xoffs + word.w) > maxw) then
table.insert(texture, fill_line(xpos, ypos, maxw, "n", font_size, colorbgw))
if (xoffs > 0) and ((xoffs + word.w) > end_xpos) then
table.insert(texture, fill_line(xpos, ypos, end_xpos, "n", font_size, colorbgw))
xpos = start_xpos
ypos = ypos + line_height + def.line_spacing
lineno = lineno + 1
if lineno >= def.number_of_lines then break end
table.insert(texture, fill_line(xpos, ypos, maxw, cur_color, font_size, colorbgw))
table.insert(texture, fill_line(xpos, ypos, end_xpos, cur_color, font_size, colorbgw))
end
for ch_i, ch in ipairs(word.chars) do
if xpos + ch.off + ch.w > end_xpos then
table.insert(texture, fill_line(xpos + ch.off, ypos, end_xpos, "n", font_size, colorbgw))
break
end
if ch.col ~= cur_color then
cur_color = ch.col
table.insert(texture, fill_line(xpos + ch.off, ypos, maxw, cur_color, font_size, colorbgw))
table.insert(texture, fill_line(xpos + ch.off, ypos, end_xpos, cur_color, font_size, colorbgw))
end
table.insert(texture, (":%d,%d=%s"):format(xpos + ch.off, ypos, ch.tex))
end
table.insert(
texture,
(":%d,%d="):format(xpos + word.w, ypos) .. char_tex(font_name, " ")
)
xpos = xpos + word.w + cwidth_tab[" "]
if xpos >= (line_width + cwidth_tab[" "]) then break end
xpos = xpos + word.w
if xpos < end_xpos then
table.insert(texture, (":%d,%d="):format(xpos, ypos) .. char_tex(font_name, " "))
xpos = xpos + cwidth_tab[" "]
end
end
table.insert(texture, fill_line(xpos, ypos, maxw, "n", font_size, colorbgw))
table.insert(texture, fill_line(start_xpos, ypos + line_height, maxw, "n", font_size, colorbgw))
table.insert(texture, fill_line(xpos, ypos, end_xpos, "n", font_size, colorbgw))
return table.concat(texture), lineno
end