sonic-radiance/sonic-radiance.love/core/modules/menusystem/grid.lua

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Lua
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local cwd = (...):gsub('%.grid$', '') .. "."
local Menu = require(cwd .. "parent")
local GridBox = Menu:extend()
local menuutils = require(cwd .. "widgets.utils")
function GridBox:new(menusystem, name, x, y, w, h, colNumber, lineNumber)
self.view = {}
self.view.slotNumber = colNumber * lineNumber
self.view.colNumber = colNumber
self.view.lineNumber = lineNumber
self.view.firstSlot = 1
GridBox.super.new(self, menusystem, name, x, y, w, h)
self.h = lineNumber * self.widget.h -- On fait en sorte que la hauteur
self.w = colNumber * self.widget.w -- et la largeur
-- soit un multiple du nombre de slot et de leur dimensions
self.cursor = {}
self.cursor.x = 0
self.cursor.y = 0
-- La gridbox possède la particularité de pouvoir fusioner des slots, on fait
-- donc une liste de slots disponibles, qui serviront par la suite.
self.slots = {}
end
function GridBox:addSlot(widgetID, x, y, w, h)
local slot = {}
slot.x = x
slot.y = y
slot.w = w
slot.h = h
slot.widgetID = widgetID
table.insert(self.slots, slot)
end
function GridBox:updateWidgetSize()
self.widget.h = math.floor( self.h / self.view.lineNumber )
self.widget.w = math.floor( self.w / self.view.colNumber )
end
function GridBox:getWidgetSize(id)
local slot = self:getWidgetSlot(id)
if slot == 0 then
return 1, 1
else
return self.widget.w * self.slots[slot].w, self.widget.h * self.slots[slot].h
end
end
function GridBox:getSlotHitbox(slot)
local x, y, w, h
x = self.slots[slot].x * self.widget.w
y = self.slots[slot].y * self.widget.h
w = self.slots[slot].w * self.widget.w
h = self.slots[slot].h * self.widget.h
return x, y, w, h
end
function GridBox:getSlotCenter(slot)
local x, y, w, h = self:getSlotHitbox(slot)
return x + (w/2), y + (h/2)
end
function GridBox:getWidgetID(slot)
local widgetID
if self.slots[slot] ~= nil then
widgetID = self.slots[slot].widgetID
else
widgetID = 0
end
return widgetID
end
function GridBox:haveWidget(slot)
local id = self:getWidgetID(slot)
return self.widget.list[id] ~= nil
end
function GridBox:getWidgetSlot(widgetID)
local slot = 0
for i,v in ipairs(self.slots) do
if (self.slots[i].widgetID == widgetID) then
slot = i
end
end
return slot
end
function GridBox:getWidgetAtPoint(x, y)
local x = x or 0
local y = y or 0
local widgetID = nil
for i,v in ipairs(self.slots) do
local xx, yy, ww, hh = self:getSlotHitbox(i)
if (x >= xx) and (y >= yy) and (x < xx + ww) and (y < yy + hh) then
widgetID = v.widgetID
end
end
return widgetID
end
function GridBox:update(dt)
self.view.firstSlot = 1
end
function GridBox:keyreleased(key, code)
slotID = self:getWidgetSlot(self.widget.selected)
local col, line = self.cursor.x, self.cursor.y
if key == 'left' then
self:moveCol(-1)
end
if key == 'right' then
self:moveCol(1)
end
if key == 'up' then
self:moveLine(-1)
end
if key == 'down' then
self:moveLine(1)
end
if key == "A" and self.widget.selected <= #self.widget.list then
self.widget.list[self.widget.selected]:action()
end
end
function GridBox:moveCol(direction)
local orig_x, orig_y = self:getSlotCenter(self.widget.selected)
local distance = self.w -- on met directement à la distance max possible le système
local nearastWidget = 0
for i,v in ipairs(self.slots) do
local xx, yy = self:getSlotCenter(i)
-- On commence par vérifier si le slot est bien positionné par rapport au
-- widget de base
if utils.math.sign(xx - orig_x) == direction then
if utils.math.pointDistance(orig_x, orig_y, xx, yy) < distance then
distance = utils.math.pointDistance(orig_x, orig_y, xx, yy)
nearestWidget = v.widgetID
end
end
end
if nearestWidget ~= 0 then
self.widget.selected = nearestWidget
end
end
function GridBox:moveLine(direction)
local orig_x, orig_y = self:getSlotCenter(self.widget.selected)
local distance = self.h -- on met directement à la distance max possible le système
local nearastWidget = 0
for i,v in ipairs(self.slots) do
local xx, yy = self:getSlotCenter(i)
-- On commence par vérifier si le slot est bien positionné par rapport au
-- widget de base
if utils.math.sign(yy - orig_y) == direction then
if utils.math.pointDistance(orig_x, orig_y, xx, yy) < distance then
distance = utils.math.pointDistance(orig_x, orig_y, xx, yy)
nearestWidget = v.widgetID
end
end
end
if nearestWidget ~= 0 then
self.widget.selected = nearestWidget
end
end
function GridBox:mousemoved(x, y)
local widgetID = self:getWidgetAtPoint(x, y)
if widgetID ~= nil then
self.widget.selected = widgetID
self:getFocus()
end
if self.widget.selected < 1 then
self.widget.selected = 1
end
if self.widget.selected > #self.widget.list then
self.widget.selected = #self.widget.list
end
end
function GridBox:mousepressed(x, y, button, isTouch)
local widgetID = self:getWidgetAtPoint(x, y)
if widgetID ~= nil then
self.widget.selected = widgetID
self:getFocus()
if #self.widget.list > 0 and self.widget.selected > 1 and self.widget.selected <= #self.widget.list then
self.widget.list[self.widget.selected]:action()
end
end
end
function GridBox:draw()
for i,v in ipairs(self.slots) do
if self:haveWidget(i) then
local widgetx = self.x + (v.x * self.widget.w)
local widgety = self.y + (v.y * self.widget.h)
if self.widget.selected == v.widgetID and self:haveFocus() == true then
self.widget.list[v.widgetID]:drawSelected(widgetx, widgety)
else
self.widget.list[v.widgetID]:draw(widgetx, widgety)
end
end
end
end
function GridBox:drawCursor()
self:updateView()
if (self.widget.selected >= 1 and self.widget.selected <= #self.widget.list) then
local slot = self:getWidgetSlot(self.widget.selected)
local w, h = self:getWidgetSize(slot)
local x = self.slots[slot].x * self.widget.w
local y = self.slots[slot].y * self.widget.h
menuutils.drawCursor(self.x + x, self.y + y, w, h)
end
end
return GridBox