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--[[
Based primarily on code from:
TechAge
=======
Copyright (C) 2019 Joachim Stolberg
AGPL v3
See LICENSE.txt for more information
mark.lua:
]]--
local marker_region = {}
function techage_forceload.unmark_region(name)
if marker_region[name] ~= nil then --marker already exists
--wip: make the area stay loaded somehow
for _, entity in ipairs(marker_region[name]) do
entity:remove()
end
marker_region[name] = nil
end
end
function techage_forceload.mark_region(name, pos1, pos2, owner, secs)
if not name or not pos1 or not pos2 then return end
techage_forceload.unmark_region(name)
local sizex, sizey, sizez = (1 + pos2.x - pos1.x) / 2, (1 + pos2.y - pos1.y) / 2, (1 + pos2.z - pos1.z) / 2
local markers = {}
--XY plane markers
for _, z in ipairs({pos1.z - 0.5, pos2.z + 0.5}) do
local markerpos = {x=pos1.x + sizex - 0.5, y=pos1.y + sizey - 0.5, z=z}
local marker = minetest.add_entity(markerpos, "techage_forceload:region_cube")
if marker ~= nil then
marker:set_properties({
visual_size={x=sizex * 2, y=sizey * 2},
--collisionbox = {-sizex, -sizey, -thickness, sizex, sizey, thickness},
collisionbox = {0,0,0, 0,0,0},
})
if owner then
marker:set_nametag_attributes({text = owner})
end
marker:get_luaentity().player_name = name
table.insert(markers, marker)
end
end
--YZ plane markers
for _, x in ipairs({pos1.x - 0.5, pos2.x + 0.5}) do
local markerpos = {x=x, y=pos1.y + sizey - 0.5, z=pos1.z + sizez - 0.5}
local marker = minetest.add_entity(markerpos, "techage_forceload:region_cube")
if marker ~= nil then
marker:set_properties({
visual_size={x=sizez * 2, y=sizey * 2},
--collisionbox = {-thickness, -sizey, -sizez, thickness, sizey, sizez},
collisionbox = {0,0,0, 0,0,0},
})
marker:set_yaw(math.pi / 2)
marker:get_luaentity().player_name = name
table.insert(markers, marker)
end
end
marker_region[name] = markers
minetest.after(secs or 20, techage_forceload.unmark_region, name)
end
function techage_forceload.switch_region(name, pos1, pos2)
if marker_region[name] ~= nil then --marker already exists
techage_forceload.unmark_region(name)
else
techage_forceload.mark_region(name, pos1, pos2)
end
end
minetest.register_entity(":techage_forceload:region_cube", {
initial_properties = {
visual = "upright_sprite",
textures = {"techage_cube_mark.png"},
use_texture_alpha = true,
physical = false,
glow = 12,
},
on_step = function(self)
if marker_region[self.player_name] == nil then
self.object:remove()
return
end
end,
on_punch = function(self)
techage_forceload.unmark_region(self.player_name)
end,
})
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