Behavior example

gameplay.lua

local anchor	= require "libs.anchor"
local baton		= require "libs.baton.baton"
local cpml		= require "libs.cpml"
local bump		= require "libs.bump.bump"
local behavior	= require "libs.knife.knife.behavior"

local _colors = {
	Background	= cpml.color(34, 32, 52, 255),
	Player		= cpml.color(203, 219, 252, 255),
	Collision	= cpml.color(102, 57, 49, 255)
}

local _controls = {
	-- Baton example stuff
	left = {'key:left', 'axis:leftx-', 'button:dpleft'},
    right = {'key:right', 'axis:leftx+', 'button:dpright'},
    up = {'key:up', 'axis:lefty-', 'button:dpup'},
    down = {'key:down', 'axis:lefty+', 'button:dpdown'},
    fire1 = {'key:z', 'button:a'},
	fire2 = {'key:x', 'button:x'},
	fire3 = {'key:c', 'button:b'},
	start = {'key:enter', 'button:start' }
}

local state = {}

-- Lets pretend that State is also the Map
function state:enter(state)
	self.input = baton.new(
		_controls,
		love.joystick.getJoysticks()[1])
	anchor:set_overscan(0)
	self.input.deadzone = 0.125
	self.player =  {
		world = nil,
		pos = { x = 0, y = 0 },
		size = { w = 32, h = 48 },
		speed = 320,
		behavior = behavior({
			default = {
				{ duration = 0, color = cpml.color(0,0,0,255), after = "idle_loop" }
			},
			idle_loop = {
				{ duration = 0.2, color = cpml.color(223, 113, 38, 255) },
				{ duration = 0.2, color = cpml.color(251, 242, 54, 255), after = "idle_loop" },
			}
		}),
		update = function(self, dt)
			self.behavior:update(dt)
		end,
		move = function(self, h, v)
			local mx, my = (self.speed * h), (self.speed * v)
			if mx ~= 0 or my ~= 0 then
				self.pos.x, self.pos.y, cols, cols_len = self.world:move(self, self.pos.x + mx, self.pos.y + my)
			end
		end
	}
	self.colls = {
		{ x = 0, y = 560, w = 1280, h = 128}
	}
	self.world = bump.newWorld(40)
	self.player.world = self.world
	self.world:add(
		self.player,
		self.player.pos.x,
		self.player.pos.y,
		self.player.size.w,
		self.player.size.h
	)
	for i, col in pairs(self.colls) do
		self.world:add(
			col, col.x, col.y, col.w, col.h
		)
	end
end

function state:update( dt )
	anchor:update()
	--
	self.input:update()
	local hor = self.input:get 'right' - self.input:get 'left'
	local ver = self.input:get 'down' - self.input:get 'up'

	self.player:update(dt)
	self.player:move(hor * dt, ver * dt)
end

function state:draw()
	love.graphics.setColor( _colors.Background )
	love.graphics.rectangle("fill",
		anchor:left(),
		anchor:top(),
		anchor:width(),
		anchor:height() )

	love.graphics.setColor( _colors.Collision )
	for i, c in ipairs(self.colls) do
		love.graphics.rectangle("fill",
			c.x, c.y, c.w, c.h
		)
	end

	local _color = self.player.behavior.frame.color or _colors.Player
	love.graphics.setColor( _color  )
	love.graphics.rectangle("fill",
		self.player.pos.x, self.player.pos.y,
		self.player.size.w, self.player.size.h
	)

	love.graphics.setColor( Color.White )
	love.graphics.printf(
		("%s %02i\n%s"):format(self.player.behavior.state, self.player.behavior.index, self.player.behavior.frame.duration), anchor:center_x() - 320/2, anchor:bottom() - 80, 320, "center"
	)
end

return state