minetest-mods/digilines
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fix generalization for arbitrary number of lines, line lengths etc.

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This commit is contained in:
Peter Nerlich 2020-12-07 19:37:13 +01:00
parent 473b9088d8
commit 358644708e
1 changed files with 4 additions and 5 deletions
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9
lcd.lua
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@ -5,7 +5,6 @@
-- load characters map
local chars_file = io.open(minetest.get_modpath("digilines").."/characters", "r")
local charmap = {}
local max_chars = 12
if not chars_file then
print("[digilines] E: LCD: character map file not found")
else
@ -31,8 +30,8 @@ local LINE_HEIGHT = 14
local CHAR_WIDTH = 5
assert(CHAR_WIDTH * LINE_LENGTH <= LCD_WIDTH - LCD_PADDING*2, "LCD: Lines set too long!")
assert(LINE_HEIGHT * NUMBER_OF_LINES <= LCD_WIDTH - LCD_PADDING*2, "LCD: Too many lines!")
assert((CHAR_WIDTH+1) * LINE_LENGTH <= LCD_WIDTH - LCD_PADDING*2, "LCD: Lines set too long!")
assert((LINE_HEIGHT+1) * NUMBER_OF_LINES <= LCD_WIDTH - LCD_PADDING*2, "LCD: Too many lines!")
local split = function(s, pat)
@ -128,7 +127,7 @@ local generate_line = function(s, ypos)
local parsed = {}
local width = 0
local chars = 0
while chars < max_chars and i <= #s do
while chars < LINE_LENGTH and i <= #s do
local file = nil
if charmap[s:sub(i, i)] ~= nil then
file = charmap[s:sub(i, i)]
@ -162,7 +161,7 @@ end
local generate_texture = function(lines)
local texture = "[combine:"..LCD_WIDTH.."x"..LCD_WIDTH
local ypos = 16
local ypos = math.floor((LCD_WIDTH - LINE_HEIGHT*NUMBER_OF_LINES) / 2)
for i = 1, #lines do
texture = texture..generate_line(lines[i], ypos)
ypos = ypos + LINE_HEIGHT