59 lines
1.7 KiB
Lua
59 lines
1.7 KiB
Lua
local utils = require "lib.utils.utils"
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local pQueue = require "lib.utils.priority_queue"
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--- @class CharacterGrid : Grid
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--- @field __grid {string: Id|nil}
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--- @field yOrderQueue PriorityQueue<Character> очередь отрисовки сверху вниз
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local grid = setmetatable({}, require "lib.level.grid.base")
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grid.__index = grid
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--- Adds a character id to the grid
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--- @param id Id
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function grid:add(id)
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local character = Tree.level.characters[id]
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if not character then return end
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local mapB = character:has(Tree.behaviors.map)
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if not mapB then return end
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local centerX, centerY = math.floor(mapB.displayedPosition.x + 0.5),
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math.floor(mapB.displayedPosition.y + 0.5)
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local sizeX, sizeY = mapB.size.x, mapB.size.y
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for y = centerY, centerY + sizeY - 1 do
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for x = centerX, centerX + sizeX - 1 do
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self.__grid[tostring(Vec3 { x, y })] = character.id
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end
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end
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end
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--- @param a Character
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--- @param b Character
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local function drawCmp(a, b)
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-- здесь персонажи гарантированно имеют нужное поведение
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return a:has(Tree.behaviors.map).displayedPosition.y
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<
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b:has(Tree.behaviors.map).displayedPosition.y
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end
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--- fills the grid with the actual data
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---
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--- should be called as early as possible during every tick
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function grid:reload()
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self:reset()
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self.yOrderQueue = pQueue.new(drawCmp)
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utils.each(Tree.level.characters, function(c)
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self:add(c.id)
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self.yOrderQueue:insert(c)
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end)
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end
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--- Generates an empty grid
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--- @return CharacterGrid
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local function new()
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return setmetatable({
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__grid = {}
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}, grid)
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end
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return { new = new }
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