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bitwise operators instead of deprecated bit library #3

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bitwise operators instead of deprecated bit library #3

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12 changes: 6 additions & 6 deletions main.lua
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
require "bit"


local function load(filename)
local tilemap = Sprite.new()
Expand Down Expand Up @@ -51,15 +51,15 @@ local FLIPPED_DIAGONALLY_FLAG = 0x20000000;
local flipDia
if gid ~= 0 then
-- Read flipping flags
flipHor = bit.band(gid, FLIPPED_HORIZONTALLY_FLAG)
flipVer = bit.band(gid, FLIPPED_VERTICALLY_FLAG)
flipDia = bit.band(gid, FLIPPED_DIAGONALLY_FLAG)
flipHor = gid & FLIPPED_HORIZONTALLY_FLAG
flipVer = gid & FLIPPED_VERTICALLY_FLAG
flipDia = gid & FLIPPED_DIAGONALLY_FLAG
-- Convert flags to gideros style
if(flipHor ~= 0) then flipHor = 4 end --TileMap.FLIP_HORIZONTAL end
if(flipVer ~= 0) then flipVer = 2 end --TileMap.FLIP_VERTICAL end
if(flipDia ~= 0) then flipDia = 1 end --TileMap.FLIP_DIAGONAL end
-- Clear the flags from gid so other information is healthy
gid = bit.band(gid, bit.bnot(bit.bor(FLIPPED_HORIZONTALLY_FLAG, FLIPPED_VERTICALLY_FLAG, FLIPPED_DIAGONALLY_FLAG)))
gid = gid & ~ (FLIPPED_HORIZONTALLY_FLAG | FLIPPED_VERTICALLY_FLAG | FLIPPED_DIAGONALLY_FLAG)
end

local tileset = gid2tileset(map, gid)
Expand Down Expand Up @@ -88,7 +88,7 @@ local FLIPPED_DIAGONALLY_FLAG = 0x20000000;
local ty = math.floor((gid - tileset.firstgid) / tileset.sizex) + 1

-- Set the tile with flip info
tilemap:setTile(x, y, tx, ty, bit.bor(flipHor, flipVer, flipDia))
tilemap:setTile(x, y, tx, ty, flipHor| flipVer| flipDia)
-- Reset vars, so they dont confuse us in the next iteration
flipHor, flipVer, flipDia = 0, 0, 0

Expand Down