104 lines
2.8 KiB
Lua
104 lines
2.8 KiB
Lua
local is_window_setup = false
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---Return the userdata's name from its metatable.
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---
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---Returns nil if the userdata doesn't have a metatable.
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---@param val userdata
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---@return string|nil
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function udname(val)
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local tbl = debug.getmetatable(val)
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if tbl == nil then
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return nil
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end
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return tbl.__name
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end
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function dump(o)
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if type(o) == 'table' then
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local s = '{ '
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for k,v in pairs(o) do
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if type(k) ~= 'number' then k = '"'..k..'"' end
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s = s .. '['..k..'] = ' .. dump(v) .. ','
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end
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return s .. '} '
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else
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return tostring(o)
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end
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end
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function on_init()
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local cube = world:request_asset("../assets/cube-texture-embedded.gltf") --[[@as GltfHandle]]
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print("Loaded textured cube (" .. udname(cube) .. ")")
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cube:wait_until_loaded()
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local scenes = cube:scenes()
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local cube_scene = scenes[1]
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local pos = Transform.from_translation(Vec3.new(0, 0, -8.0))
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local e = world:spawn(pos, cube_scene)
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print("spawned entity " .. tostring(e))
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end
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function on_first()
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if not is_window_setup then
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world:view(
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---@param w Window
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function (w)
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if w.cursor_grab == CursorGrabMode.NONE then
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w.cursor_grab = CursorGrabMode.LOCKED
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w.cursor_visible = false
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return w
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else
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is_window_setup = true
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print("Window setup")
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end
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end, Window
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)
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end
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---@type EventReader
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local reader = world:read_event(DeviceEvent)
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---@param ev DeviceEvent
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for ev in reader:read() do
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if ev.event.kind == DeviceEventKind.MOTION then
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local motion_ev = ev.event --[[@as DeviceEventMotion]]
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print("axis: " .. tostring(motion_ev.axis) .. " = " .. tostring(motion_ev.value))
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end
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end
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end
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--[[ function on_pre_update()
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print("Lua's pre-update function was called")
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end ]]
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function on_update()
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-- Get entities without WorldTransform
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local view = View.new(Transform, Not(Has(WorldTransform)), Res(DeltaTime))
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local res = world:view_query(view)
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---@param transform Transform
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---@param dt DeltaTime
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for entity, transform, dt in res:iter() do
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transform:translate(0, 0.15 * dt, 0)
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entity:update(transform)
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end
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local changed_view = View.new(Changed(Transform))
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local changed_res = world:view_query(changed_view)
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---@param transform Transform
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for _, transform in changed_res:iter() do
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print("Entity transform changed to: '" .. tostring(transform) .. "' on tick " .. tostring(world:get_tick()))
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end
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end
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--[[ function on_post_update()
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print("Lua's post-update function was called")
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end
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function on_last()
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print("Lua's last function was called")
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end ]] |