I am just starting with LOVE on OS X 10.6 and have come upon an unusual problem that has stumped me. I will post the code in it's entirety because it is so short and simple.
Code: Select all
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Tile =
{
new = function (w, h)
local ret = {}
for k,v in pairs(Map) do
ret[k] = v
end
ret.w = w
ret.h = h
return ret
end,
w = 0,
h = 0,
draw = function (self, x, y)
love.graphics.rectangle("fill", x, y, self.w, self.h)
end,
}
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Map =
{
new = function (w, h, tilew, tileh)
local ret = {}
for k,v in pairs(Map) do
ret[k] = v
end
ret.tiles = {}
for i = 1,w do
local array = {}
for j = 1,h do table.insert(array, nil) end
table.insert(ret.tiles, array)
end
ret.w = w
ret.h = h
ret.tilew = tilew
ret.tileh = tileh
return ret
end,
tile = function (self, x, y, t)
t = t or self.tiles[x][y]
self.tiles[x][y] = t
return t
end,
draw = function (self, sx, sy)
if self.tiles then
sx = sx or 0
sy = sy or 0
love.graphics.setColor(0, 128, 128, 255)
for x = 1,self.w do
for y = 1,self.h do
-- self.tile is nil HERE
local t = self.tiles[x][y]
if t then t:draw(
sx + (x - 1) * self.tilew,
sy + (y -1 ) * self.tileh)
end
end
end
else
-- ALWAYS END UP HERE...
love.graphics.print(
"WTF? self.tiles = " .. tostring(self.tiles), 200, 200)
end
end,
}
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-- GLOBAL OBJECTS
world = nil
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function love.load()
local font = love.graphics.newFont(12)
love.graphics.setFont(font)
love.graphics.setColor(0,0,0,255)
love.graphics.setBackgroundColor(255,255,255)
math.randomseed(os.time())
world = Map.new(20, 20, 16, 16)
local tile = Tile.new(16, 16)
for x = 1,world.w do
for y = 1,world.h do
if math.random(10) > 6 then
world:tile(x, y, tile)
end
end
end
end
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function love.draw()
-- THIS ALWAYS PRINTS A VALID TABLE ADDRESS
love.graphics.print("PRE: world.tiles = " .. tostring(world.tiles),
200, 100)
world:draw()
-- THIS ALWAYS PRINTS A VALID TABLE ADDRESS TOO
love.graphics.print("POST: world.tiles = " .. tostring(world.tiles),
200, 300)
end
Thanks for any insight.
