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layermanager.lua
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layermanager.lua
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LayerManager = Object:extend()
function LayerManager:new()
LayerManager.super.new(self)
self.first = 0
self.last = -1
self.default_controls = {
Up = "w",
Down = "s",
Left = "a",
Right = "d",
Confirm = "return",
Back = "escape",
Stats = "1",
Schedule = "2",
}
self.controls = self.default_controls
end
-- LAYER MANAGEMENT
function LayerManager:topmost()
return self[self.first]
end
function LayerManager:bottommost()
return self[self.last]
end
function LayerManager:append(layer)
log(lume.format("[LayerManager] Appending layer {1}", { layer.layer_name }))
local last = self.last + 1
self.last = last
self[last] = layer
end
function LayerManager:prepend(layer)
log(lume.format("[LayerManager] Prepending layer {1}", { layer.layer_name }))
local first = self.first - 1
self.first = first
self[first] = layer
end
function LayerManager:remove_first()
local first = self.first
log(lume.format("[LayerManager] Removing first layer ({1})", { self[first].layer_name }))
if first > self.last then error('list is empty') end
self[first] = nil
self.first = first + 1
end
function LayerManager:remove_last()
local last = self.last
log(lume.format("[LayerManager] Removed last layer ({1})", { self[last].layer_name }))
if self.first > last then error('list is empty') end
self[last] = nil
self.last = last - 1
end
-- HELPERS
function LayerManager:transition(from, to)
log(lume.format("[LayerManager] Transition invoked from {1} to {2}", { from.layer_name, to.layer_name }))
local transition_layer = TransitionLayer(from, to)
self:prepend(transition_layer)
end
function LayerManager:reload_controls()
local controls_json_info = {}
love.filesystem.getInfo("controls.json", controls_json_info)
if controls_json_info.size ~= nil then
log("[LayerManager] Reloading controls from existing controls.json file")
local contents, size = love.filesystem.read("controls.json")
self.controls = lume.extend({}, self.controls, json.decode(contents))
else
log("[LayerManager] Reloading controls failed, using defaults")
end
end
-- CALLBACK PROPAGATION
function LayerManager:draw()
for i = self.last, self.first, -1 do
local layer = self[i]
layer:draw()
if layer.propagate_draw_to_underlying ~= true then
return
end
end
end
function LayerManager:update(dt)
for i = self.first, self.last do
local layer = self[i]
layer:update(dt)
if layer.propagate_update_to_underlying ~= true then
return
end
end
end
function LayerManager:keypressed(key, scancode, isrepeat)
for i = self.first, self.last do
local layer = self[i]
layer:keypressed(key, scancode, isrepeat)
if layer.propagate_input_to_underlying ~= true then
return
end
end
end
function LayerManager:keyreleased(key, scancode)
for i = self.first, self.last do
local layer = self[i]
layer:keyreleased(key, scancode)
end
end
function LayerManager:mousepressed(x, y, button, istouch, presses)
for i = self.first, self.last do
local layer = self[i]
layer:mousepressed(x, y, button, istouch, presses)
if layer.propagate_input_to_underlying ~= true then
return
end
end
end
function LayerManager:mousereleased(x, y, button, istouch, presses)
for i = self.first, self.last do
local layer = self[i]
layer:mousereleased(x, y, button, istouch, presses)
if layer.propagate_input_to_underlying ~= true then
return
end
end
end
function LayerManager:mousemoved(x, y, dx, dy, istouch)
for i = self.first, self.last do
local layer = self[i]
layer:mousemoved(x, y, button, istouch, presses)
if layer.propagate_input_to_underlying ~= true then
return
end
end
end