Sti box2D collision problem

[Yani354]

i am trying to detect a collision on the grass but the collision is very offset


the white is where the collision should be detected
and the red is where is detecting it.
The x and y of the collision is at the middle but it should be top-left

This is the physics variables:

Code: Select all

function Grass.new(x,y,width,height)
   local instance = setmetatable({}, Grass)
   instance.x = x
   instance.y = y
   instance.isContact = false

   instance.physics = {}
   instance.physics.body = love.physics.newBody(World, instance.x, instance.y, "static")
   instance.physics.shape = love.physics.newRectangleShape(width, height)
   instance.physics.fixture = love.physics.newFixture(instance.physics.body, instance.physics.shape)
   instance.physics.fixture:setSensor(true)
   table.insert(ActiveGrass, instance)
end

This is the code of crating it

Code: Select all

for k, v in ipairs(Map.level.layers.entity.objects) do
        if v.type == "grass" then
            Grass.new(v.x + v.width / 2, v.y + v.height / 2,v.width,v.height)
        end
    end

This is the code to check if there is collision:

Code: Select all

function Grass.beginContact(a, b, collision)
   for i,instance in ipairs(ActiveGrass) do
      if a == instance.physics.fixture or b == instance.physics.fixture then
         if a == Car.physics.fixture or b == Car.physics.fixture then
            instance.isContact = true
            return true
         end
      end
   end
end

could someone explain why is this happening.

[darkfrei]

Please provide the .love file without any not relevant code and content.

[Yani354]

Please provide the .love file without any not relevant code and content.

the game is meant for touchscreen so it might not work that well with mouse but it still does the job

game.love

(62.4 KiB) Downloaded 134 times

sorry for the long respond i just accidentally replied to myself

[darkfrei]

Please provide the .love file without any not relevant code and content.

the game is meant for touchscreen so it might not work that well with mouse but it still does the job
game.love

sorry for the long respond i just accidentally replied to myself

Sorry, I've reworked some stuff that I cannot understand, I've never used box2d before and I m not sure that the solution is good.

But for this purpose will be enough any custom collision detection.