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Some fixes to proportional/HQ font support.

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This commit is contained in:
kaeza 2013-10-18 07:26:16 -02:00
parent 40f74beec0
commit a487ffaa16
1 changed files with 46 additions and 38 deletions
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42
signs_lib.lua
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@ -10,8 +10,6 @@ end
-- CONSTANTS
local NUMBER_OF_LINES = 6
local MP = minetest.get_modpath("homedecor")
-- Used by `build_char_db' to locate the file.
@ -23,7 +21,7 @@ local FONT_FMT_SIMPLE = "hdf_%02x.png"
-- Path to the textures.
local TP = MP.."/textures"
local TEXT_SCALE = {x=0.9, y=0.7}
local TEXT_SCALE = {x=0.9, y=0.5}
-- Lots of overkill here. KISS advocates, go away, shoo! ;) -- kaeza
@ -48,6 +46,17 @@ local LINE_HEIGHT
local SIGN_WIDTH
local SIGN_PADDING
-- Size of the canvas, in characters.
-- Please note that CHARS_PER_LINE is multiplied by the average character
-- width to get the total width of the canvas, so for proportional fonts,
-- either more or fewer characters may fit on a line.
local CHARS_PER_LINE = 30
local NUMBER_OF_LINES = 6
-- Separation between lines. 1.0 means no separation (ypos offset by text
-- height), 2.0 is one "line" (ypos offset by two times text height), etc.
local LINE_SEP = 1.2
-- This holds the individual character widths.
-- Indexed by the actual character (e.g. charwidth["A"])
local charwidth = { }
@ -121,18 +130,12 @@ local function build_char_db()
end
cdbf:close()
if LINE_HEIGHT then
-- XXX: Is there a better way to calc this?
-- XXX: Remember to change similar lines below if this changes.
SIGN_WIDTH = math.floor((total_width / char_count) * 16)
SIGN_PADDING = SIGN_WIDTH / 14 -- Totally arbitrary.
-- Check some random characters to see if the file on disk differs
-- from the cached one. If so, then ditch cached data and rebuild
-- (font probably was changed).
print("*** DEBUG: Randomly checking cache.")
if not check_random_chars() then
print("*** DEBUG: yey all ok.")
return
end
print("*** DEBUG: something's fucked up; rebuild cache.")
else
@ -147,6 +150,7 @@ local function build_char_db()
end
end
if not LINE_HEIGHT then
-- OK, something went wrong... try brute force loading from texture files.
charwidth = { }
@ -175,8 +179,12 @@ local function build_char_db()
error("Could not find font line height.")
end
SIGN_WIDTH = math.floor((total_width / char_count) * 16)
SIGN_PADDING = SIGN_WIDTH / 14 -- Totally arbitrary.
end
-- XXX: Is there a better way to calc this?
-- XXX: Remember to change similar lines below if this changes.
SIGN_WIDTH = math.floor((total_width / char_count) * CHARS_PER_LINE)
SIGN_PADDING = SIGN_WIDTH / 16 -- Totally arbitrary.
-- Try to save cached list back to disk.
@ -206,10 +214,10 @@ local signs = {
}
local signs_yard = {
{delta = {x = 0, y = 0.05, z = -0.05}, yaw = 0},
{delta = {x = -0.05, y = 0.05, z = 0}, yaw = math.pi / -2},
{delta = {x = 0, y = 0.05, z = 0.05}, yaw = math.pi},
{delta = {x = 0.05, y = 0.05, z = 0}, yaw = math.pi / 2},
{delta = {x = 0, y = 0.15, z = -0.05}, yaw = 0},
{delta = {x = -0.05, y = 0.15, z = 0}, yaw = math.pi / -2},
{delta = {x = 0, y = 0.15, z = 0.05}, yaw = math.pi},
{delta = {x = 0.05, y = 0.15, z = 0}, yaw = math.pi / 2},
}
local signs_post = {
@ -280,7 +288,7 @@ local homedecor_generate_line = function(s, lineno)
width = width + w + 1
if width > max_line_w then
xpos = start_xpos
ypos = ypos + (LINE_HEIGHT * 1.05)
ypos = ypos + (LINE_HEIGHT * LINE_SEP)
width = 0
lineno = lineno + 1
end
@ -303,7 +311,7 @@ local function copy ( t )
end
local homedecor_generate_texture = function(lines)
local texture = { ("[combine:%dx%d"):format(SIGN_WIDTH, SIGN_WIDTH) }
local texture = { ("[combine:%dx%d"):format(SIGN_WIDTH, LINE_HEIGHT * NUMBER_OF_LINES * LINE_SEP) }
local lineno = 0
for i = 1, #lines do
if lineno >= NUMBER_OF_LINES then break end