coords, hexagons, drawing, chunks

1 files changed, 30 insertions, 0 deletions

diff --git a/common/chunk.lua b/common/chunk.lua
new file mode 100644
index 0000000..38cdaf0
--- /dev/null
+++ b/common/chunk.lua
@@ -0,0 +1,30 @@
+local CHUNK_SIZE = 128
+
+-- for now tiles shall be booleans
+
+local function index(offq,offr)
+	-- indexes start at 0
+	-- and go up to (CHUNK_SIZE^2)-1
+	assert(0<=offq and 0<=offr and offq<CHUNK_SIZE and offr<CHUNK_SIZE, "chunk hex offset out of bounds")
+	return CHUNK_SIZE*offq + offr
+end
+
+local Chunk = {}
+Chunk.__index = Chunk
+function Chunk.make()
+	-- todo actual worldgen
+	local tiles = {}
+	for i=0,CHUNK_SIZE-1 do
+		for j=0,CHUNK_SIZE-1 do
+			tiles[index(i,j)] = (math.random()<0.5)
+		end
+	end
+
+	return setmetatable({tiles=tiles},Chunk)
+end
+
+return {
+	Chunk=Chunk,
+	SIZE=CHUNK_SIZE,
+	index=index
+}