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more pictures, better stencil mesh over the bg

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This commit is contained in:
Angel C Monroy
2021-12-23 21:36:06 +01:00
parent 963b3ac174
commit 3a297f9130
11 changed files with 115 additions and 80 deletions
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130
src/Util.lua
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@@ -1,11 +1,9 @@
-- require('mobdebug').start()
--[[
Given an "atlas" (a texture with multiple sprites), as well as a
width and a height for the tiles therein, split the texture into
all of the quads by simply dividing it evenly.
]]
function GenerateQuads(atlas, tilewidth, tileheight)
]] function GenerateQuads(atlas, tilewidth, tileheight)
local sheetWidth = atlas:getWidth() / tilewidth
local sheetHeight = atlas:getHeight() / tileheight
@@ -14,9 +12,11 @@ function GenerateQuads(atlas, tilewidth, tileheight)
for y = 0, sheetHeight - 1 do
for x = 0, sheetWidth - 1 do
spritesheet[sheetCounter] =
love.graphics.newQuad(x * tilewidth, y * tileheight, tilewidth,
tileheight, atlas:getDimensions())
spritesheet[sheetCounter] = love.graphics.newQuad(x * tilewidth,
y * tileheight,
tilewidth,
tileheight,
atlas:getDimensions())
sheetCounter = sheetCounter + 1
end
end
@@ -28,89 +28,95 @@ end
Recursive table printing function.
https://coronalabs.com/blog/2014/09/02/tutorial-printing-table-contents/
]]
function print_r ( t )
local print_r_cache={}
local function sub_print_r(t,indent)
function print_r(t)
local print_r_cache = {}
local function sub_print_r(t, indent)
if (print_r_cache[tostring(t)]) then
print(indent.."*"..tostring(t))
print(indent .. "*" .. tostring(t))
else
print_r_cache[tostring(t)]=true
if (type(t)=="table") then
for pos,val in pairs(t) do
if (type(val)=="table") then
print(indent.."["..pos.."] => "..tostring(t).." {")
sub_print_r(val,indent..string.rep(" ",string.len(pos)+8))
print(indent..string.rep(" ",string.len(pos)+6).."}")
elseif (type(val)=="string") then
print(indent.."["..pos..'] => "'..val..'"')
print_r_cache[tostring(t)] = true
if (type(t) == "table") then
for pos, val in pairs(t) do
if (type(val) == "table") then
print(indent .. "[" .. pos .. "] => " .. tostring(t) ..
" {")
sub_print_r(val, indent ..
string.rep(" ", string.len(pos) + 8))
print(indent .. string.rep(" ", string.len(pos) + 6) ..
"}")
elseif (type(val) == "string") then
print(indent .. "[" .. pos .. '] => "' .. val .. '"')
else
print(indent.."["..pos.."] => "..tostring(val))
print(indent .. "[" .. pos .. "] => " .. tostring(val))
end
end
else
print(indent..tostring(t))
print(indent .. tostring(t))
end
end
end
if (type(t)=="table") then
print(tostring(t).." {")
sub_print_r(t," ")
if (type(t) == "table") then
print(tostring(t) .. " {")
sub_print_r(t, " ")
print("}")
else
sub_print_r(t," ")
sub_print_r(t, " ")
end
print()
end
function math.round(x,precision)
return x + precision - (x + precision) % 1
end
function math.round(x, precision) return x + precision - (x + precision) % 1 end
function print_s(segments)
for k, s in ipairs(segments) do
s:debug(tostring(k))
end
for k, s in ipairs(segments) do s:debug(tostring(k)) end
end
-- convert a list of points forming a polygon {x1, y1, x2, y2, ...} into a mesh
function poly2mesh(points)
-- remove duplicates???
local polypts = love.math.triangulate(points)
local tlist
if #points > 2 then
local polypts = love.math.triangulate(points)
local tlist
local vnums = {}
local vcoords = {}
do
local verthash = {}
local n = 0
local v
-- use unique vertices by using a coordinate hash table
for i = 1, #polypts do
for j = 1, 3 do
local px = polypts[i][j * 2 - 1]
local py = polypts[i][j * 2]
if not verthash[px] then verthash[px] = {} end
if not verthash[px][py] then
n = n + 1
verthash[px][py] = n
vcoords[n * 2 - 1] = px
vcoords[n * 2] = py
v = n
else
v = verthash[px][py]
local vnums = {}
local vcoords = {}
do
local verthash = {}
local n = 0
local v
-- use unique vertices by using a coordinate hash table
for i = 1, #polypts do
for j = 1, 3 do
local px = polypts[i][j * 2 - 1]
local py = polypts[i][j * 2]
if not verthash[px] then
verthash[px] = {}
end
if not verthash[px][py] then
n = n + 1
verthash[px][py] = n
vcoords[n * 2 - 1] = px
vcoords[n * 2] = py
v = n
else
v = verthash[px][py]
end
vnums[(i - 1) * 3 + j] = v
end
vnums[(i - 1) * 3 + j] = v
end
end
end
local mesh = love.graphics.newMesh(#vcoords, "triangles", "static")
for i = 1, #vcoords / 2 do
local x, y = vcoords[i * 2 - 1], vcoords[i * 2]
local mesh = love.graphics.newMesh(#vcoords, "triangles", "static")
for i = 1, #vcoords / 2 do
local x, y = vcoords[i * 2 - 1], vcoords[i * 2]
-- Here's where the UVs are assigned
mesh:setVertex(i, x, y, x / 50, y / 50, .5, .5, .9, 1)
-- Here's where the UVs are assigned
mesh:setVertex(i, x, y, x / 50, y / 50, .5, .5, .9, 1)
end
mesh:setVertexMap(vnums)
print_r(mesh:type())
return mesh
else
return nil
end
mesh:setVertexMap(vnums)
return mesh
end