Bump.lua - collision not working

[2lostsouls]

I found a great thread on this forum about how to use bump.lua. I was able to add it to my main.lua without an error. But when I move the player, the player is still going through the image of the desk. I put a square around the image and added a property called collideable and made it true as the tutorial states. I think I may have two problems:

1. I do not think I am referencing the player for the new world.
2. I don't have it on my map correctly.

Here is the code and two images showing what I did. Hopefully this helps. Thank you for any assistance.

Code: Select all

-- Include Simple Tiled Implementation into project
sti = require "sti"
bump = require "bump"


function love.load()
    -- Load map file
    map = sti("map.lua")
    
    local world = bump.newWorld()
    local map = sti('map.lua', {"bump"}) -- This loads the map file, and loads the bump plugin for STI
    map:bump_init(world) -- This initializes the bump plugin, and loads all of your collidable tiles
    

    -- Create new dynamic data layer called "Sprites" as the 3rd layer
    local layer = map:addCustomLayer("Sprites", 3)

    -- Get player spawn object
    local player
    for k, object in pairs(map.objects) do
        if object.name == "Player" then
            player = object
            break
        end
    end
    
  

    -- Create player object
    local sprite = love.graphics.newImage("sprite.png")
    img = love.graphics.newQuad(0, 0, 32, 64, sprite:getDimensions())
    layer.player = {
    sprite = sprite,
        x      = player.x,
        y      = player.y,
        ox     = sprite:getWidth() / 2,
        oy     = sprite:getHeight() / 1.35
  }
    
    

    -- Add controls to player
    layer.update = function(self, dt)
        -- 96 pixels per second
        local speed = 96

        -- Move player up
        if love.keyboard.isDown("w") or love.keyboard.isDown("up") then
            self.player.y = self.player.y - speed * dt
        end

        -- Move player down
        if love.keyboard.isDown("s") or love.keyboard.isDown("down") then
            self.player.y = self.player.y + speed * dt
        end

        -- Move player left
        if love.keyboard.isDown("a") or love.keyboard.isDown("left") then
            self.player.x = self.player.x - speed * dt
        end

        -- Move player right
        if love.keyboard.isDown("d") or love.keyboard.isDown("right") then
            self.player.x = self.player.x + speed * dt
        end
    end
    
    

    -- Draw player
   layer.draw = function(self)
            love.graphics.draw(
            self.player.sprite,
           math.floor(self.player.x),
           math.floor(self.player.y),
           0,
           1,
           1,
           self.player.ox,
           self.player.oy
 )
    end

--   Remove unneeded object layer
   map:removeLayer("Spawn Point")



function love.update(dt)
    -- Update world
    map:update(dt)
end

function love.draw()
    -- Scale world
    local scale = 2
    local screen_width = love.graphics.getWidth() / scale
    local screen_height = love.graphics.getHeight() / scale

    map:draw()
  end
end[attachment=1]imageCollider.png[/attachment]

[AdrianN]

I think because in your collision filter you writed collideable instead of collidable.
I'm not sure, but you could try.

I recommend this tutorial, I used it when i used the bump library.

http://osmstudios.com/tutorials/love2d- ... ing-levels

[2lostsouls]

Thank you, I fixed that. I am just not sure if I am using Tiled correctly. There are not any detailed tutorials out there.

1. Do I put the sprite image on an image layer on the map after making the collidable tiles, or on an object layer?

Thank you for everyone's help.

[AdrianN]

1. Do I put the sprite image on an image layer on the map after making the collidable tiles, or on an object layer?

I'm not sure, but I think the image layer and the object layer are identical, only one is dedicated to images.
STI admits both layers.

[2lostsouls]

Ok, I really want to learn this but it is getting very frustrating. I cannot get the collision to work. I cannot find a tutorial that really shows me how to do the collision. The picture shows my character but he is going right through the object that I want him not to go through. Is there any one that can look at the code and see if there is something I should be adding. I am showing some pics on how my tileset looks and my map as well as my Main.lua. Thank you.

Code: Select all

-- Include Simple Tiled Implementation into project
sti = require "sti"
bump = require "bump"


function love.load()
    -- Load map file
    map = sti("map.lua")
    
    local world = bump.newWorld()
    local map = sti('map.lua', {"bump"}) -- This loads the map file, and loads the bump plugin for STI
    map:bump_init(world) -- This initializes the bump plugin, and loads all of your collidable tiles
    

    -- Create new dynamic data layer called "Sprites" as the 3rd layer
    local layer = map:addCustomLayer("Sprites", 3)

    -- Get player spawn object
    local player
    for k, object in pairs(map.objects) do
        if object.name == "Player" then
            player = object
            break
        end
    end
    
  

    -- Create player object
    local sprite = love.graphics.newImage("sprite.png")
    img = love.graphics.newQuad(0, 0, 32, 64, sprite:getDimensions())
    layer.player = {
    sprite = sprite,
        x      = player.x,
        y      = player.y,
        ox     = sprite:getWidth() / 2,
        oy     = sprite:getHeight() / 1.35
  }
    
    

    -- Add controls to player
    layer.update = function(self, dt)
        -- 96 pixels per second
        local speed = 96

        -- Move player up
        if love.keyboard.isDown("w") or love.keyboard.isDown("up") then
            self.player.y = self.player.y - speed * dt
        end

        -- Move player down
        if love.keyboard.isDown("s") or love.keyboard.isDown("down") then
            self.player.y = self.player.y + speed * dt
        end

        -- Move player left
        if love.keyboard.isDown("a") or love.keyboard.isDown("left") then
            self.player.x = self.player.x - speed * dt
        end

        -- Move player right
        if love.keyboard.isDown("d") or love.keyboard.isDown("right") then
            self.player.x = self.player.x + speed * dt
        end
    end
    
    

    -- Draw player
   layer.draw = function(self)
            love.graphics.draw(
            self.player.sprite,
           math.floor(self.player.x),
           math.floor(self.player.y),
           0,
           1,
           1,
           self.player.ox,
           self.player.oy
 )
    end

--   Remove unneeded object layer
   map:removeLayer("Spawn Point")



function love.update(dt)
    -- Update world
    map:update(dt)
end

function love.draw()
    -- Scale world
    local scale = 2
    local screen_width = love.graphics.getWidth() / scale
    local screen_height = love.graphics.getHeight() / scale

    map:draw()
  end
end

[AdrianN]

Ok, I really want to learn this but it is getting very frustrating. I cannot get the collision to work. I cannot find a tutorial that really shows me how to do the collision. The picture shows my character but he is going right through the object that I want him not to go through. Is there any one that can look at the code and see if there is something I should be adding. I am showing some pics on how my tileset looks and my map as well as my Main.lua. Thank you.

Code: Select all

-- Include Simple Tiled Implementation into project
sti = require "sti"
bump = require "bump"


function love.load()
    -- Load map file
    map = sti("map.lua")
    
    local world = bump.newWorld()
    local map = sti('map.lua', {"bump"}) -- This loads the map file, and loads the bump plugin for STI
    map:bump_init(world) -- This initializes the bump plugin, and loads all of your collidable tiles
    

    -- Create new dynamic data layer called "Sprites" as the 3rd layer
    local layer = map:addCustomLayer("Sprites", 3)

    -- Get player spawn object
    local player
    for k, object in pairs(map.objects) do
        if object.name == "Player" then
            player = object
            break
        end
    end
    
  

    -- Create player object
    local sprite = love.graphics.newImage("sprite.png")
    img = love.graphics.newQuad(0, 0, 32, 64, sprite:getDimensions())
    layer.player = {
    sprite = sprite,
        x      = player.x,
        y      = player.y,
        ox     = sprite:getWidth() / 2,
        oy     = sprite:getHeight() / 1.35
  }
    
    

    -- Add controls to player
    layer.update = function(self, dt)
        -- 96 pixels per second
        local speed = 96

        -- Move player up
        if love.keyboard.isDown("w") or love.keyboard.isDown("up") then
            self.player.y = self.player.y - speed * dt
        end

        -- Move player down
        if love.keyboard.isDown("s") or love.keyboard.isDown("down") then
            self.player.y = self.player.y + speed * dt
        end

        -- Move player left
        if love.keyboard.isDown("a") or love.keyboard.isDown("left") then
            self.player.x = self.player.x - speed * dt
        end

        -- Move player right
        if love.keyboard.isDown("d") or love.keyboard.isDown("right") then
            self.player.x = self.player.x + speed * dt
        end
    end
    
    

    -- Draw player
   layer.draw = function(self)
            love.graphics.draw(
            self.player.sprite,
           math.floor(self.player.x),
           math.floor(self.player.y),
           0,
           1,
           1,
           self.player.ox,
           self.player.oy
 )
    end

--   Remove unneeded object layer
   map:removeLayer("Spawn Point")



function love.update(dt)
    -- Update world
    map:update(dt)
end

function love.draw()
    -- Scale world
    local scale = 2
    local screen_width = love.graphics.getWidth() / scale
    local screen_height = love.graphics.getHeight() / scale

    map:draw()
  end
end

http://karai17.github.io/Simple-Tiled-I ... p.lua.html

collidable set to true, can be used on any Layer, Tile, or Object

You need to rename collidable instead of Collidable and variable boolean type

[2lostsouls]

Ok, thank you. I did that but still not working.

[Karai17]

Have you looked at the tutorial that is in the github repo?

https://github.com/karai17/Simple-Tiled ... -to-sti.md

[AdrianN]

Ok, I really want to learn this but it is getting very frustrating. I cannot get the collision to work. I cannot find a tutorial that really shows me how to do the collision. The picture shows my character but he is going right through the object that I want him not to go through. Is there any one that can look at the code and see if there is something I should be adding. I am showing some pics on how my tileset looks and my map as well as my Main.lua. Thank you.

Code: Select all

-- Include Simple Tiled Implementation into project
sti = require "sti"
bump = require "bump"


function love.load()
    -- Load map file
    map = sti("map.lua")
    
    local world = bump.newWorld()
    local map = sti('map.lua', {"bump"}) -- This loads the map file, and loads the bump plugin for STI
    map:bump_init(world) -- This initializes the bump plugin, and loads all of your collidable tiles
    

    -- Create new dynamic data layer called "Sprites" as the 3rd layer
    local layer = map:addCustomLayer("Sprites", 3)

    -- Get player spawn object
    local player
    for k, object in pairs(map.objects) do
        if object.name == "Player" then
            player = object
            break
        end
    end
    
  

    -- Create player object
    local sprite = love.graphics.newImage("sprite.png")
    img = love.graphics.newQuad(0, 0, 32, 64, sprite:getDimensions())
    layer.player = {
    sprite = sprite,
        x      = player.x,
        y      = player.y,
        ox     = sprite:getWidth() / 2,
        oy     = sprite:getHeight() / 1.35
  }
    
    

    -- Add controls to player
    layer.update = function(self, dt)
        -- 96 pixels per second
        local speed = 96

        -- Move player up
        if love.keyboard.isDown("w") or love.keyboard.isDown("up") then
            self.player.y = self.player.y - speed * dt
        end

        -- Move player down
        if love.keyboard.isDown("s") or love.keyboard.isDown("down") then
            self.player.y = self.player.y + speed * dt
        end

        -- Move player left
        if love.keyboard.isDown("a") or love.keyboard.isDown("left") then
            self.player.x = self.player.x - speed * dt
        end

        -- Move player right
        if love.keyboard.isDown("d") or love.keyboard.isDown("right") then
            self.player.x = self.player.x + speed * dt
        end
    end
    
    

    -- Draw player
   layer.draw = function(self)
            love.graphics.draw(
            self.player.sprite,
           math.floor(self.player.x),
           math.floor(self.player.y),
           0,
           1,
           1,
           self.player.ox,
           self.player.oy
 )
    end

--   Remove unneeded object layer
   map:removeLayer("Spawn Point")



function love.update(dt)
    -- Update world
    map:update(dt)
end

function love.draw()
    -- Scale world
    local scale = 2
    local screen_width = love.graphics.getWidth() / scale
    local screen_height = love.graphics.getHeight() / scale

    map:draw()
  end
end

I think you need to register the position of you shape in bump word. And check if you can move it.

Code: Select all

world:add(A,   0, 0,    64, 256)
...
local actualX, actualY, cols, len = world:move(B, 0,64)

https://github.com/kikito/bump.lua

Tutorial Bump-Tiled : http://osmstudios.com/tutorials/love2d- ... ing-levels

[kikito]

Hi, bump author here.

It seems to me that there is something wrong with your "update" function. If you are using bump you should never be doing something like this:

Code: Select all

if love.keyboard.isDown("w") or love.keyboard.isDown("up") then
  self.player.y = self.player.y - speed * dt
end

The way bump works is by telling it "hey I want to move this object from where it is to *{x,y}*". Then bump "processes the attempt" and gives you a new x and y ("ok, this is where your object ended up when attempting to move to {x,y}") and a list of collisions ("and this is the list of objects it collided with"). This is done with the *world:move* method. See this link:

https://github.com/kikito/bump.lua#movi ... resolution