From 1b6c73f1170f170b5908a33d1b479477d89c8080 Mon Sep 17 00:00:00 2001
From: shylie <shylie@shylie.info>
Date: Wed, 16 Jul 2025 01:13:37 -0400
Subject: [PATCH] Allow for custom chunk height

---
 main.lua          |  4 ++--
 zprite/zchunk.lua | 11 +++++++++--
 2 files changed, 11 insertions(+), 4 deletions(-)

diff --git a/main.lua b/main.lua
index cdd8579..12a1dca 100644
--- a/main.lua
+++ b/main.lua
@@ -21,13 +21,13 @@ end
 
 local BIG_BLOCK = love.graphics.newQuad(24 * 9, 24 * 9, 24, 24, tex)
 
-local z = require("zprite").zchunk.new(tex, 384)
+local z = require("zprite").zchunk.new(tex, 384, 40)
 z._height_scale = 10
 
 local function update_map()
 	for i = -32, 32 do
 		for j = -32, 32 do
-			local layers = love.math.simplexNoise(i * 0.02, j * 0.02) * 28 + 4
+			local layers = love.math.simplexNoise(i * 0.02, j * 0.02) * 34 + 6
 			z:put(i * 24, j * 24, BIG_BLOCK, math.floor(layers) + 1, layers < 23 and dirt_color or mountain_color)
 			coroutine.yield()
 		end
diff --git a/zprite/zchunk.lua b/zprite/zchunk.lua
index 0b4c179..248e1f6 100644
--- a/zprite/zchunk.lua
+++ b/zprite/zchunk.lua
@@ -3,6 +3,7 @@ local zprite = require("zprite.zprite")
 ---@class zchunk
 ---@field private _chunks {integer: {z: zprite, x: integer, y: integer}}
 ---@field private _chunk_size integer
+---@field private _chunk_height integer
 ---@field private _texture love.Image
 ---@field private _height_scale number
 local zchunk = {}
@@ -10,11 +11,16 @@ zchunk.__index = zchunk
 
 ---@param texture love.Image
 ---@param chunk_size integer?
-function zchunk.new(texture, chunk_size)
+---@param chunk_height integer?
+function zchunk.new(texture, chunk_size, chunk_height)
 	chunk_size = chunk_size or 16
+	chunk_height = chunk_height or 32
 	if chunk_size < 1 then
 		error("chunk size must be at least 1")
 	end
+	if chunk_height < 1 then
+		error("chunk height must be at least 1")
+	end
 	if not texture then
 		error("must have a texture")
 	end
@@ -23,6 +29,7 @@ function zchunk.new(texture, chunk_size)
 
 	obj._chunks = {}
 	obj._chunk_size = chunk_size
+	obj._chunk_height = chunk_height
 
 	obj._texture = texture
 
@@ -69,7 +76,7 @@ function zchunk:put(x, y, quad, layer_count, color_map, base_layer)
 	local index = self:_chunk_index(x, y)
 	if not self._chunks[index] then
 		self._chunks[index] = {
-			z = zprite.new(self._texture, self._chunk_size * self._chunk_size * 32),
+			z = zprite.new(self._texture, self._chunk_size * self._chunk_size * self._chunk_height),
 			x = math.floor(x / self._chunk_size),
 			y = math.floor(y / self._chunk_size),
 		}