Minecraft/World6-travelmap
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movement and stuff, more data

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Tangent
2025-11-05 01:08:13 -07:00
parent c130185a20
commit 880811262b
4 changed files with 104 additions and 36 deletions
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115
src/main.lua
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@@ -5,43 +5,63 @@ local screen_width, screen_height = love.graphics.getDimensions()
local node_radius = 2
local safe_zone = 12
-- panning / scaling control tuning
local scale_adjust_speed = 2
local translation_adjust_speed = 600
local scale_fix_translation_adjustment = 300 -- this is wrong, and the wrong way to do this, but I don't know what the correct version is
local map = (function()
local file = io.open("map.json", "r")
local text = file:read("*all")
local nodes, edges, minimums, maximums, scale, translation
local function load_map(map_file_name)
local file, text
if type(map_file_name) == "string" then
file = io.open(map_file_name, "r")
if not file then
nodes = {}
edges = {}
minimums = {0, 0}
maximums = {100, 100}
scale = 1
translation = {0, 0}
return
end
text = file:read("*all")
else
file = map_file_name
file:open("r")
text = file:read("string")
end
local map = json.decode(text)
return map
end)()
nodes = map.nodes
edges = map.edges or {}
local nodes = map.nodes
local edges = map.edges
-- find map size
minimums = {math.huge, math.huge} -- x, z
maximums = {-math.huge, -math.huge} -- x, z
for _, node in pairs(nodes) do
if node[1] > maximums[1] then
maximums[1] = node[1]
end
if node[1] < minimums[1] then
minimums[1] = node[1]
end
if node[3] > maximums[2] then
maximums[2] = node[3]
end
if node[3] < minimums[2] then
minimums[2] = node[3]
end
end
-- find map size
local minimums = {math.huge, math.huge} -- x, z
local maximums = {-math.huge, -math.huge} -- x, z
for _, node in pairs(nodes) do
if node[1] > maximums[1] then
maximums[1] = node[1]
end
if node[1] < minimums[1] then
minimums[1] = node[1]
end
if node[3] > maximums[2] then
maximums[2] = node[3]
end
if node[3] < minimums[2] then
minimums[2] = node[3]
end
-- find scale factor, translate
local distance_x = maximums[1] - minimums[1]
local distance_z = maximums[2] - minimums[2]
scale = math.min((screen_width - safe_zone * 2) / distance_x, (screen_height - safe_zone * 2) / distance_z)
translation = {-minimums[1] + safe_zone / scale, -minimums[2] + safe_zone / scale}
end
-- find scale factor, translate
local distance_x = maximums[1] - minimums[1]
local distance_z = maximums[2] - minimums[2]
local scale = math.min((screen_width - safe_zone * 2) / distance_x, (screen_height - safe_zone * 2) / distance_z)
local translation = {-minimums[1] + safe_zone / scale, -minimums[2] + safe_zone / scale}
load_map("map.json")
@@ -101,6 +121,39 @@ function love.draw()
love.graphics.print(name, text_x, text_y, 0, 1 / scale, 1 / scale)
end
end
-- TEMP center of map
-- love.graphics.setColor(1, 1, 1, 1)
-- love.graphics.circle("fill", minimums[1] + (maximums[1] - minimums[1]) / 2, minimums[2] + (maximums[2] - minimums[2]) / 2, node_radius / scale)
end
function love.update(dt)
if love.keyboard.isDown("w") then
translation[2] = translation[2] + translation_adjust_speed / scale * dt
end
if love.keyboard.isDown("s") then
translation[2] = translation[2] - translation_adjust_speed / scale * dt
end
if love.keyboard.isDown("a") then
translation[1] = translation[1] + translation_adjust_speed / scale * dt
end
if love.keyboard.isDown("d") then
translation[1] = translation[1] - translation_adjust_speed / scale * dt
end
if love.keyboard.isDown("=") then
scale = scale + scale * scale_adjust_speed * dt
translation[1] = translation[1] - scale_fix_translation_adjustment * scale_adjust_speed * dt
translation[2] = translation[2] - scale_fix_translation_adjustment * scale_adjust_speed * dt
end
if love.keyboard.isDown("-") then
scale = scale - scale * scale_adjust_speed * dt
translation[1] = translation[1] + scale_fix_translation_adjustment * scale_adjust_speed * dt
translation[2] = translation[2] + scale_fix_translation_adjustment * scale_adjust_speed * dt
end
end
function love.filedropped(file)
load_map(file)
end
function love.keypressed(key)