LÖVE

Posted: **Mon Apr 06, 2015 3:37 am**

Hello everyone! My name is Michael and I am beginning my journey into making games

. I am very new to the whole coding process and execution so I'm a "newbie/simpleton" as of right now. Ok so enough with the intro here's why I am posting this to forums: I am trying to make a game, but i am having issues. So I am a person to make my life easier so i "stole" another persons character/player code, but i understand it for the most part so win win. I want to make a game where there's 2 controllable players. One by arrow keys as shown in the code below and another character controlled by WASD keys. This code is currently all i have by the way and it's in my "main.lua" file . So would i make a separate file for each character or would everything be in the main.lua folder? Go ahead and c&p the code and test it out and see if you can add a border to it because that's my next problem. I have made a game, well, i upgraded a game where theres 2 circles (one controllable by wasd and other is by arrow keys) and i made a border and everything and the circles can collide, well i used the same method where i made that border and tried to put it in this new project and it made my character blue and the rectangle i used as the border was not solid meaning my character was able to go through it....or is my character not solid? That's the kind of problem i'm having with being a newbie and not 100% understanding everything. Ill have the codes below;both my new project and my old one i made with the circles just to look off of something. Now thats all i need help with as of right now so thank you guys for reading and if you need me to describe my problems more let me know and i would gladly explain them more.....and for those who answer please try your best to provide an in depth answer <3 here are the codes:

New project that i'm currently making and need help on:

Code: Select all

function love.load()
    sprites = love.graphics.newImage("Textures/sprites.png")
    sprites:setFilter("nearest", "linear")

    screenWidth = love.graphics.getWidth()
    screenHeight = love.graphics.getHeight()
    speed = 100
    x = 50
    y = 50
    
    link = love.graphics.newQuad(36, 96, 23, 31, sprites:getWidth(), sprites:getHeight())
    linkBack1 = love.graphics.newQuad(35, 96, 23, 31, sprites:getWidth(), sprites:getHeight())
    linkBack0 = love.graphics.newQuad(3, 96, 23, 32, sprites:getWidth(), sprites:getHeight())
    linkBack2 = love.graphics.newQuad(67, 97, 23, 31, sprites:getWidth(), sprites:getHeight())

    linkRSide0 = love.graphics.newQuad(2, 65, 25, 31, sprites:getWidth(), sprites:getHeight())
    linkRSide1 = love.graphics.newQuad(36, 64, 23, 33, sprites:getWidth(), sprites:getHeight())
    linkRSide2 = love.graphics.newQuad(68, 65, 23, 31, sprites:getWidth(), sprites:getHeight())

    linkLSide0 = love.graphics.newQuad(1, 33, 23, 31, sprites:getWidth(), sprites:getHeight())
    linkLSide1 = love.graphics.newQuad(33, 32, 24, 32, sprites:getWidth(), sprites:getHeight())
    linkLSide2 = love.graphics.newQuad(65, 33, 25, 31, sprites:getWidth(), sprites:getHeight())

    linkFront0 = love.graphics.newQuad(1, 1, 27, 32, sprites:getWidth(), sprites:getHeight())
    linkFront1 = love.graphics.newQuad(33, 0, 27, 32, sprites:getWidth(), sprites:getHeight())
    linkFront2 = love.graphics.newQuad(66, 2, 70, 27, sprites:getWidth(), sprites:getHeight())
end
function love.update(dt)
   if love.keyboard.isDown("right") then
      x = x + (speed * dt)
      link = linkRSide1
   elseif love.keyboard.isDown("left") then
      x = x - (speed * dt)
      link = linkLSide1
   end
   if love.keyboard.isDown("down") then
      y = y + (speed * dt)
      link = linkFront1
   elseif love.keyboard.isDown("up") then
      link = linkBack1
      y = y - (speed * dt)
   end
end
function love.draw()
    love.graphics.draw(sprites, link, x, y, 0, 1, 1, 0, 0)
    -- love.graphics.draw(sprites, linkBack0, x, y, 0, 1, 1, 0, 0)
    -- love.graphics.draw(sprites, linkBack1, x+50, y, 0, 1, 1, 0, 0)
    -- love.graphics.draw(sprites, linkBack2, x+100, y, 0, 1, 1, 0, 0)
    -- love.graphics.draw(sprites, linkRSide0, x+150, y, 0, 1, 1, 0, 0)
    -- love.graphics.draw(sprites, linkRSide1, x+200, y, 0, 1, 1, 0, 0)
    -- love.graphics.draw(sprites, linkRSide2, x+250, y, 0, 1, 1, 0, 0)
end

and thats that now on to the next one>>>>>>

Old project to look off of

Code: Select all

function love.load()
  love.physics.setMeter(64) --the height of a meter our worlds will be 64px
  world = love.physics.newWorld(0, 0 * 64, true) --gravity is being set to 0 in the x direction and 200 in the y direction <3

  objects = {} -- table to hold all our physical objects
  
  -- Ground/Borders
	objects.roof = {}
  objects.roof.body = love.physics.newBody(world, 0, 0) 
  objects.roof.shape = love.physics.newRectangleShape(1600, 25) --make a rectangle with a width of 1600 and a height of 25
  objects.roof.fixture = love.physics.newFixture(objects.roof.body, objects.roof.shape); --attach shape to body
   objects.wallL = {}
  objects.wallL.body = love.physics.newBody(world, 1, 0) 
  objects.wallL.shape = love.physics.newRectangleShape(2, 1200) --make a rectangle with a width of 2 and a height of 1200
  objects.wallL.fixture = love.physics.newFixture(objects.wallL.body, objects.wallL.shape); --attach shape to body
	objects.wallR = {}
   objects.wallR.body = love.physics.newBody(world, 800, 0) 
  objects.wallR.shape = love.physics.newRectangleShape(2, 1200) --make a rectangle with a width of 1000 and a height of 25
  objects.wallR.fixture = love.physics.newFixture(objects.wallR.body, objects.wallR.shape); --attach shape to body
	objects.floor = {}
  objects.floor.body = love.physics.newBody(world, 0, 600) 
  objects.floor.shape = love.physics.newRectangleShape(1600, 25) --make a rectangle with a width of 1000 and a height of 25
  objects.floor.fixture = love.physics.newFixture(objects.floor.body, objects.floor.shape); --attach shape to body
  
  --Ball
  objects.ball = {}
  objects.ball.body = love.physics.newBody(world, 950/2, 600/2, "dynamic") --place the body in the center of the world and make it dynamic, so it can move around
  objects.ball.shape = love.physics.newCircleShape(20) --the ball's shape has a radius of 40
  objects.ball.fixture = love.physics.newFixture(objects.ball.body, objects.ball.shape, 1) -- Attach fixture to body and give it a density of 1.
  objects.ball.fixture:setRestitution(0.6) --let the ball bounce
    --circle
  objects.circle = {}
  objects.circle.body = love.physics.newBody(world, 550/2, 600/2, "dynamic") --place the body in the center of the world and make it dynamic, so it can move around
  objects.circle.shape = love.physics.newCircleShape(20) --the ball's shape has a radius of 40
  objects.circle.fixture = love.physics.newFixture(objects.circle.body, objects.circle.shape, 1) -- Attach fixture to body and give it a density of 1.
  objects.circle.fixture:setRestitution(0.6) --let the ball bounce
  

  
  love.graphics.setBackgroundColor(62, 62, 62) --set the background color to grey
  love.window.setMode(800, 600) --set the window dimensions to 800 (Width) by 650(Height)
end



function love.update(dt)
  world:update(dt) --this puts the world into motion

  
  --here we are going to create some keyboard events
  if love.keyboard.isDown("right") then --press the right arrow key to push the ball to the right
    objects.ball.body:applyForce(600, 0)
  elseif love.keyboard.isDown("left") then --press the left arrow key to push the ball to the left
    objects.ball.body:applyForce(-600, 0)
   elseif love.keyboard.isDown("up") then --press the up arrow key to push the ball up
    objects.ball.body:applyForce(0, -1000)
	 elseif love.keyboard.isDown("down") then --press the down arrow key to push the ball down
    objects.ball.body:applyForce(0, 900)
   elseif love.keyboard.isDown("r") then --press the "r" key to set the ball in the air
    objects.ball.body:setPosition(950/2, 750/2)
    objects.ball.body:setLinearVelocity(0, 0) --we must set the velocity to zero to prevent a potentially large velocity generated by the change in position
  end
  if love.keyboard.isDown("d") then --press the d key to push the ball to the right
    objects.circle.body:applyForce(600, 0)
  elseif love.keyboard.isDown("a") then --press the a key to push the ball to the left
    objects.circle.body:applyForce(-600, 0)
   elseif love.keyboard.isDown("w") then --press the w arrow key to push the ball up
    objects.circle.body:applyForce(0, -1000)
	 elseif love.keyboard.isDown("s") then --press the s key to push the ball down
    objects.circle.body:applyForce(0, 900)
   elseif love.keyboard.isDown("r") then --press the "r" key to set the ball in the air
    objects.circle.body:setPosition(950/2, 750/2)
    objects.circle.body:setLinearVelocity(0, 0) --we must set the velocity to zero to prevent a potentially large velocity generated by the change in position
  end
  score = 0
end

function love.draw()
  love.graphics.setColor(35, 35, 35) -- set the drawing color to dark-grey for the roof
  love.graphics.polygon("fill", objects.roof.body:getWorldPoints(objects.roof.shape:getPoints()))  -- draw a "filled in" polygon using the ground's coordinates

  love.graphics.setColor(210, 0, 0) --set the drawing color to Red for the ball
  love.graphics.circle("fill", objects.ball.body:getX(), objects.ball.body:getY(), objects.ball.shape:getRadius())
  
  
  love.graphics.setColor(35, 35, 35) -- set the drawing color to dark-grey for the wall
  love.graphics.polygon("fill", objects.wallR.body:getWorldPoints(objects.wallR.shape:getPoints()))
  
  love.graphics.setColor(35, 35, 35) -- set the drawing color to dark-grey for the wall
  love.graphics.polygon("fill", objects.wallL.body:getWorldPoints(objects.wallL.shape:getPoints()))
  
  love.graphics.setColor(35, 35, 35) -- set the drawing color to dark-grey for the floor
  love.graphics.polygon("fill", objects.floor.body:getWorldPoints(objects.floor.shape:getPoints()))
  
  love.graphics.setColor(0, 0, 160) --set the drawing color to blue for the circle
  love.graphics.circle("fill", objects.circle.body:getX(), objects.circle.body:getY(), objects.circle.shape:getRadius())
  
  love.graphics.setColor( 25, 25, 25, 255 )
  love.graphics.print("Score: " .. score, 16, 16, 0, 1, 1)
  
end

function addScore(n)
	score = score + tonumber(n)
end

and that's that now finally just so theres no extra confusion here is my configure file>>>

Configure file (conf.lua)

Code: Select all

function love.conf(t)
t.modules.joystick = true     -- Enable the joystick module (boolean)
t.modules.audio = true        -- Enable the audio module (boolean)
t.modules.keyboard = true     -- Enable the keyboard module (boolean)
t.modules.event = true        -- Enable the event module (boolean)
t.modules.image = true        -- Enable the image module (boolean)
t.modules.graphics = true     -- Enable the graphics module (boolean)
t.modules.timer = true        -- Enable the timer module (boolean)
t.modules.mouse = true        -- Enable the mouse module (boolean)
t.modules.sound = true        -- Enable the sound module (boolean)
t.modules.thread = true       
t.modules.physics = true      -- Enable the physics module (boolean)
t.console = true              -- Attach a console (boolean, Windows only)
t.title = "Project"           -- The title of the window the game is in (string)
t.author = "Michael"             -- The author of the game (string)
t.window.fullscreen = false   -- Enable fullscreen (boolean)
t.window.vsync = false        -- Enable vertical sync (boolean)
t.window.fsaa = 0             -- The number of FSAA-buffers (number)
t.window.height = 600         -- The window height (number)
t.window.width = 800          -- The window width (number)
end

So again to make it clearly stated as possible: I am trying to make a 2 controllable players that are SOLID meaning they can't go through other solids and can't go through each other......also I am trying to make a border using the same method as shown in my second code i posted which is my old project........I tried using that method, but like i said it placed the shape with the exact coordinates and color, but my character was well above it and for some reason turned a blue highlighted color and was able to go THROUGH the object I created ;(.

Do I have to implement a physics system? If so how? I just want to make 2 controllable objects that collide with each other and can't go outside the window and then I'll get more complicated from there. Thank you for reading and I look forward to your responses!

Posted: **Mon Apr 06, 2015 11:46 am**

Welcome to the forums!

People will be much more likely to help you if you provide a .love file of your project, because it is much easier than having to copy and paste the code you posted and try to put it together by ourselves.

P.S.:

I am very new to the whole coding process and execution so I'm a "newbie/simpleton" as of right now. I am teaching myself to do this at age 14 with little to no help so applaude that much

I think that's how most of the people here started

Posted: **Mon Apr 06, 2015 1:28 pm**

Also please use code tags:

Code: Select all

[code]<your code>
<more code>

[/code]

so it's more readable.

Posted: **Mon Apr 06, 2015 9:07 pm**

Hi and welcome to the community!

If I understand correctly, then the top code in your post is your current project. In this code you are not using love.physics. The second code you posted is a different project and you are trying to learn from it. It uses love.physics. This is one way for dealing with collision detection. Read more here: love.physics

Besides that you can also use one of the collision detection libraries that were made by the community. For example, see here: bump.

If you need more specific help, please go ahead and ask.

Also, in the future, you can increase you chance of getting answers by (1) uploading a .love-file of your current project and (2) choosing a descriptive name for the thread (for example "Collision detection for 2 players" instead of "I need help putting my game together"). That way, people don't have to read so much until they understand what the thread is about.

LÖVE

How do you make 2 controllable players and solid objects?

How do you make 2 controllable players and solid objects?

Re: I need help putting my game together......

Re: I need help putting my game together......

Re: I need help putting my game together......