100 lines
3.3 KiB
Lua
100 lines
3.3 KiB
Lua
local anim8 = require "lib.utils.anim8"
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--- @class SpriteBehavior : Behavior
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--- @field animationTable table<string, table>
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--- @field animationGrid table
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--- @field manifest table
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--- @field sheets table
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--- @field state "idle"|"run"|"hurt"|"attack"
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--- @field side 1|-1
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local sprite = {}
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sprite.__index = sprite
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sprite.id = "sprite"
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sprite.LEFT = -1
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sprite.RIGHT = 1
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--- Скорость между кадрами в анимации
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sprite.ANIMATION_SPEED = 0.1
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function sprite.new(spriteDir)
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local anim = setmetatable({}, sprite)
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anim.animationTable = {}
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anim.animationGrid = {}
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anim.manifest = spriteDir.manifest
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anim.sheets = spriteDir.sheets
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-- n: name; i: image
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for n, i in pairs(spriteDir.sheets) do
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local aGrid = anim8.newGrid(anim.manifest.width, anim.manifest.height, i:getWidth(), i:getHeight())
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local tiles = '1-' .. math.ceil(i:getWidth() / anim.manifest.width)
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anim.animationGrid[n] = aGrid(tiles, 1)
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end
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anim.state = "idle"
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anim.side = sprite.RIGHT
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anim:loop("idle")
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return anim
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end
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function sprite:update(dt)
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local anim = self.animationTable[self.state] or self.animationTable["idle"] or nil
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if not anim then return end
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anim:update(dt)
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end
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function sprite:draw()
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if not self.animationTable[self.state] or not self.sheets[self.state] then return end
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self.owner:try(Tree.behaviors.positioned,
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function(pos)
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local ppm = Tree.level.camera.pixelsPerMeter
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local position = pos.position + Vec3 { 0.5, 0.5 }
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Tree.level.render:enqueue(Tree.level.render.LAYERS.SPRITE, position.y, function()
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love.graphics.setColor(1, 1, 1)
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if Tree.level.selector.id == self.owner.id then
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local texW, texH = self.sheets[self.state]:getWidth(),
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self.sheets[self.state]:getHeight()
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local shader = Tree.assets.files.shaders.outline
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shader:send("texSize", { texW, texH })
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shader:send("time", love.timer:getTime())
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love.graphics.setShader(shader)
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end
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self.animationTable[self.state]:draw(self.sheets[self.state],
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position.x,
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position.y, nil, 1 / ppm * self.side, 1 / ppm, self.manifest.base.x, self.manifest.base.y)
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love.graphics.setShader()
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end)
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end
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)
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end
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--- @return Task<nil>
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function sprite:animate(state)
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return function(callback)
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if not self.animationGrid[state] then
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print("[SpriteBehavior]: no animation for '" .. state .. "'")
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return callback()
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end
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self.animationTable[state] = anim8.newAnimation(self.animationGrid[state], self.ANIMATION_SPEED,
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function()
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self:loop("idle")
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callback()
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end)
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self.state = state
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end
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end
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function sprite:loop(state)
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if not self.animationGrid[state] then
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return print("[SpriteBehavior]: no animation for '" .. state .. "'")
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end
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self.animationTable[state] = anim8.newAnimation(self.animationGrid[state], self.ANIMATION_SPEED)
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if state == 'idle' then
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self.animationTable[state]:gotoFrame(love.math.random(#self.animationTable[state].frames))
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end
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self.state = state
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end
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return sprite
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