lua-love-platformer/main.lua
2018-01-18 00:30:01 -05:00

110 lines
2.6 KiB
Lua

--[[ LOVE STUFF ]]
function love.load()
gameState = "menu"
myFont = love.graphics.newFont(30)
love.window.setMode(1440, 700)
myWorld = love.physics.newWorld(0, 500, false)
myWorld:setCallbacks(beginContact, endContact, preSolve, postSolve)
sprites = {}
sprites.coin_sheet = love.graphics.newImage('sprites/coin_sheet.png')
sprites.player_jump = love.graphics.newImage('sprites/player_jump.png')
sprites.player_stand = love.graphics.newImage('sprites/player_stand.png')
require('player')
require('coin')
anim8 = require 'anim8'
sti = require 'sti'
camera = require 'camera'
platforms = {}
cam = camera()
gameMap = sti("maps/map.lua", { "box2d" })
for i, obj in pairs(gameMap.layers['platforms'].objects) do
spawnPlatform(obj.x, obj.y, obj.width, obj.height)
end
for i, obj in pairs(gameMap.layers['coins'].objects) do
spawnCoin(obj.x, obj.y)
end
DIRECTION_LEFT = -1
DIRECTION_RIGHT = 1
end
function love.update(dt)
myWorld:update(dt)
playerUpdate(dt)
gameMap:update(dt)
coinUpdate(dt)
cam:lookAt(player.body:getX(), love.graphics.getHeight()/2)
for i,c in ipairs(coins) do
c.animation:update(dt)
end
end
function love.draw()
cam:attach()
gameMap:drawLayer(gameMap.layers['Tile Layer 1'])
love.graphics.draw(
player.sprite,
player.body:getX(),
player.body:getY(),
nil, player.direction, 1,
sprites.player_stand:getWidth()/2, sprites.player_stand:getHeight()/2)
for i, c in ipairs(coins) do
c.animation:draw(sprites.coin_sheet, c.x, c.y, nil, nil, nil, 20.5, 21)
end
cam:detach()
if gameState == "menu" then
love.graphics.setFont(myFont)
love.graphics.printf("Press any key to begin!", 0, 50, love.graphics.getWidth(), "center")
end
end
function love.keypressed(key, scancode, isrepeat)
if key == "space" and player.grounded then
player.body:applyLinearImpulse(0, -2800)
end
if gameState == "menu" then
gameState = "game"
end
end
function spawnPlatform(x, y, width, height)
local platform = {}
platform.body = love.physics.newBody(myWorld, x, y, 'static')
platform.shape = love.physics.newRectangleShape(width/2, height/2, width, height)
platform.fixture = love.physics.newFixture(platform.body, platform.shape)
platform.width = width
platform.height = height
table.insert(platforms, platform)
end
function beginContact(a, b, coll)
player.grounded = true
end
function endContact(a, b, coll)
player.grounded = false
end
function distanceBetweenObjects(obj1, obj2)
return distanceBetween(obj1.x, obj1.y, obj2.x, obj2.y)
end
function distanceBetween(x1, y1, x2, y2)
return math.sqrt((y2 - y1)^2 + (x2 - x1)^2)
end