Author Topic: Is it possible to check when carried object hits ground  (Read 223 times)

Starlock

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Is it possible to check when carried object hits ground
« on: August 18, 2018, 03:57:01 pm »
I'm trying to check a carried objects position so that its sprite will change to a falling effect when it lands on a hole. However, I'm having an issue where the effect will happen for every hole tile it goes over and I only want the effect to happen on the tile that it lands on not every tile that it goes over while being thrown.

Diarandor

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Re: Is it possible to check when carried object hits ground
« Reply #1 on: August 18, 2018, 05:14:19 pm »
It will be possible with Solarus 1.6, with a new event function, and I think Christopho has already coded it. Chris has been working very hard, even harder than adamantium, on the engine, and from the more than 100 issues that there were before, less than 40 remain to do. That means Solarus 1.6 is coming very soon...
“If you make people think they're thinking, they'll love you. But if you really make them think, they'll hate you.”

Yosha

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Re: Is it possible to check when carried object hits ground
« Reply #2 on: August 24, 2018, 08:51:17 am »
Hello, I did something to create a "non destructible objet" using the metatable of destructible. When the carried object stop its movement, a new destructible is created instead, at the "landing"position. It's like the object can be carried and thrown again and again.

Code: [Select]
 
    function destructible_meta:on_lifting()
    local map = self:get_map()
    local hero = self:get_map():get_hero()   
    local sprite = self:get_sprite():get_animation_set()
    local name = self:get_name()
    local entity_state = nil

    if name ~= nil then
      sol.timer.start(map, 10, function()
        if hero:get_state() == "lifting" then
          entity_state = hero:get_state()
        end
        if entity_state == "lifting" and hero:get_state() == "carrying" then
          entity_state = hero:get_state()
        end
        if entity_state == "carrying" and hero:get_state() == "free" then
          entity_state = hero:get_state()
          for entity in map:get_entities_by_type("carried_object") do       
            function entity:on_movement_changed(movement)
              local x,y,layer = entity:get_position() 
              if not map:has_entities(name) then
if name:match("^non_destructible") then
  map:create_destructible{name = name, layer = layer, x=x, y=y, sprite = sprite}
  entity:remove()
        end
              end
            end
          end
          return false
        end   
        return true
      end)
    end
  end

In your case, you have to test the position with the ground's one and if it's a hole, change the animation with the falling one. (and of course, not create the new object !!)

For one time I am not asking for help, I'm glad to help someone else ! ;D

Diarandor

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Re: Is it possible to check when carried object hits ground
« Reply #3 on: August 24, 2018, 09:11:14 am »
There is another example in the project XD2. (The metal ball.)
“If you make people think they're thinking, they'll love you. But if you really make them think, they'll hate you.”