From 3275ae4948fd2c1bb8da780214cbb741dc3178be Mon Sep 17 00:00:00 2001
From: sanine <sanine.not@pm.me>
Date: Fri, 12 May 2023 01:16:46 -0500
Subject: begin refactor

---
 honey/mesh.lua | 147 ---------------------------------------------------------
 1 file changed, 147 deletions(-)
 delete mode 100644 honey/mesh.lua

(limited to 'honey/mesh.lua')

diff --git a/honey/mesh.lua b/honey/mesh.lua
deleted file mode 100644
index 12edea9..0000000
--- a/honey/mesh.lua
+++ /dev/null
@@ -1,147 +0,0 @@
-local module = {}
-local gl = honey.gl
-setmetatable(module, {__index=_G})
-setfenv(1, module)
-
-
-local function printVertex(vertices, i)
-	print(string.format(
-		"p(%f, %f, %f), n(%f, %f, %f), t(%f, %f)",
-		vertices[i+0],
-		vertices[i+1],
-		vertices[i+2],
-
-
-		vertices[i+3],
-		vertices[i+4],
-		vertices[i+5],
-
-
-		vertices[i+5],
-		vertices[i+6]
-	))
-end
-
-
-local function insertVertex(vertices, attrib, vertex, debug)
-	if debug then print() end
-	local pos = 3*vertex.v_idx
-	for i=1,3 do
-		table.insert(vertices, attrib.vertices[pos+i])
-		if debug then print(vertices[#vertices]) end
-	end
-
-	local normal = 3*vertex.vn_idx
-	for i=1,3 do
-		table.insert(vertices, attrib.normals[normal+i])
-		if debug then print(vertices[#vertices]) end
-	end
-
-	local tex = 2*vertex.vt_idx
-	for i=1,2 do
-		table.insert(vertices, attrib.texcoords[tex+i])
-		if debug then print(vertices[#vertices]) end
-	end
-	if debug then 
-		for i=1,#attrib.texcoords do
-			print(i, attrib.texcoords[i])
-		end
-	end
-end
-
-
-function loadShape(shape, attrib, debug)
-	local vertices = {}
-	local indices = {}
-
-	local start = shape.face_offset
-	local finish = start + shape.length
-	for i=start,finish-1 do
-		assert(attrib.face_num_verts[i+1] == 3, "non-triangular face!")
-		for j=0,2 do
-			local vertex = attrib.faces[(3*i) + j + 1]
-			insertVertex(vertices, attrib, vertex, debug)
-			table.insert(indices, #indices)
-		end
-	end
-
-	return vertices, indices
-end
-
-
-function loadFile(filename, debug)
-	local flags = honey.tinyobj.FLAG_TRIANGULATE
-	if debug then print("load file:", filename) end
-	local attrib, shapes, materials = honey.tinyobj.parse_obj(filename, flags)
-	
-	local meshes = {}
-	for _, shape in ipairs(shapes) do
-		local vertices, indices = loadShape(shape, attrib, debug)
-		table.insert(meshes, Mesh(vertices, indices))
-	end
-	if debug then print("finished file:", filename) end
-	return meshes
-end
-
-
-cache = {}
-function loadCached(filename, index, debug)
-	if not cache[filename] then
-		cache[filename] = loadFile(filename, debug)
-	end
-	return cache[filename][index]
-end
-
-
-Mesh = {}
-Mesh.__index = Mesh
-
-
-function Mesh.new(_, vertices, indices)
-	local self = {}
-	setmetatable(self, Mesh)
-
-	self.vertexArray = gl.GenVertexArrays()
-	self.vertexBuffer = gl.GenBuffers()
-	self.elementBuffer = gl.GenBuffers()
-	self.vertexCount = #indices
-
-	gl.BindVertexArray(self.vertexArray)
-	gl.BindBuffer(gl.ARRAY_BUFFER, self.vertexBuffer)
-	gl.BufferData(gl.ARRAY_BUFFER, gl.FLOAT, vertices, gl.STATIC_DRAW)
-
-	gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, self.elementBuffer)
-	gl.BufferData(gl.ELEMENT_ARRAY_BUFFER, gl.UNSIGNED_INT, indices, gl.STATIC_DRAW)
-
-	gl.VertexAttribPointer(0, 3, false, 8, 0)
-	gl.EnableVertexAttribArray(0)
-	gl.VertexAttribPointer(1, 3, false, 8, 3)
-	gl.EnableVertexAttribArray(1)
-	gl.VertexAttribPointer(2, 2, false, 8, 6)
-	gl.EnableVertexAttribArray(2)
-
-	return self
-end
-setmetatable(Mesh, {__call=Mesh.new})
-
-
-function Mesh.drawElements(self)
-	gl.BindVertexArray(self.vertexArray)
-	gl.DrawElements(gl.TRIANGLES, self.vertexCount, gl.UNSIGNED_INT, 0)
-end
-
-
---===== builtin meshes =====--
-
-function createBuiltins()
-	cache["builtin.quad"] = {Mesh(
-		{ 0, 0, 0,   0, 1, 0,   0, 0,
-		  1, 0, 0,   0, 1, 0,   1, 0,
-		  0, 1, 0,   0, 1, 0,   0, 1,
-		  1, 1, 0,   0, 1, 0,   1, 1 },
-		{ 0, 1, 3, 0, 3, 2 }
-	)}
-end
-
-
-return module 
-- 
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