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Thanks Diarandor that makes sense I'll try it out soon. Also is there a way to make a turret only activate by a switch like a dart trap? Or would that be a custom entity rather than an enemy?

The first turret turned out to be really easy but for the other two (the four direction and eight direction turrets) I want it so that the turrets fire in all of the directions at the same time rather than only one.

I'm not too sure about how to go about making turrets that remain stationary but continuously fire(I supposed using a timer)

One turret would fire in one direction but does not change direction to follow the hero, one fires in four main directions(N,S,E,W) and another that fires in eight direction (N,NW,NE,W,E,SW,SE,S)

Hey, I would like to try to create an item similar to the Lens of Truth from OoT, and I would just like to make sure something like that is possible. My initial thought process is to make the item enable specific dynamic tiles while it is being used and then re-disable them when the item is no longer in use.

That seems to have been the problem as far as enemies go. For switches however, I tried switching to solid switches yet it still doesn't work. Do I need to create a custom entity that activates when hit with an arrow?

Thanks the bread that works great     As for the code about 1), I'm just using the custom bow/arrow code from zelda_roth...

Code ( lua) Select Expand

local arrow = ...
local game = arrow:get_game()
local map = arrow:get_map()
local hero = map:get_hero()
local direction = hero:get_direction()
local bow = game:get_item("bow")
local force
local sprite_id
local sprite
local enemies_touched = {}
local entity_reached
local entity_reached_dxy
local flying

-- Arrow shot by the bow. Replaces the built-in one to allow light arrows.

function arrow:on_created()
  local direction = arrow:get_direction()
  local horizontal = direction % 2 == 0
  if horizontal then
    arrow:set_size(16, 8)
    arrow:set_origin(8, 4)
  else
    arrow:set_size(8, 16)
    arrow:set_origin(4, 8)
  end

  arrow:set_can_traverse_ground("hole", true)  -- For cases of shooting arrow near a hole, so it's not destroyed right away.
  arrow:set_optimization_distance(0)  -- Make the arrow continue outside the screen until the max distance.

  local bow = game:get_item("bow")
  force = bow.get_force and bow:get_force() or 1
end

-- Traversable rules.
arrow:set_can_traverse("crystal", true)
arrow:set_can_traverse("crystal_block", true)
arrow:set_can_traverse("hero", true)
arrow:set_can_traverse("jumper", true)
arrow:set_can_traverse("stairs", false)
arrow:set_can_traverse("stream", true)
arrow:set_can_traverse("switch", true)
arrow:set_can_traverse("teletransporter", true)
arrow:set_can_traverse_ground("deep_water", true)
arrow:set_can_traverse_ground("shallow_water", true)
arrow:set_can_traverse_ground("hole", true)
arrow:set_can_traverse_ground("lava", true)
arrow:set_can_traverse_ground("prickles", true)
arrow:set_can_traverse_ground("low_wall", true)
arrow.apply_cliffs = true

-- Triggers the animation and sound of the arrow reaching something
-- and removes the arrow after some delay.
local function attach_to_obstacle()
  flying = false
  sprite:set_animation("reached_obstacle")
  sol.audio.play_sound("arrow_hit")
  arrow:stop_movement()

  -- Remove the arrow after a delay.
  sol.timer.start(map, 1500, function()
    arrow:remove()
  end)
end

-- Attaches the arrow to an entity and make it follow it.
local function attach_to_entity(entity)
  if entity_reached ~= nil then
    -- Already attached.
    return
  end

  -- Stop flying.
  attach_to_obstacle()

  -- Make the arrow follow the entity reached when it moves.
  entity_reached = entity
  local entity_reached_x, entity_reached_y = entity_reached:get_position()
  local x, y = arrow:get_position()
  entity_reached_dxy = { entity_reached_x - x, entity_reached_y - y }

  sol.timer.start(arrow, 10, function()
    if not entity_reached:exists() then
      arrow:remove()
      return false
    end

    if entity_reached:get_type() == "enemy" then
      local enemy_sprite = entity_reached:get_sprite()
      if entity_reached:get_life() <= 0 and
          enemy_sprite ~= nil and
          enemy_sprite:get_animation() ~= "hurt" then
        -- Dying animation of an enemy: don't keep the arrow.
        arrow:remove()
        return false
      end
    end

    x, y = entity_reached:get_position()
    x, y = x - entity_reached_dxy[1], y - entity_reached_dxy[2]
    arrow:set_position(x, y)
   
    return true
  end)
end

-- Hurt enemies.
arrow:add_collision_test("sprite", function(arrow, entity)
  if entity:get_type() == "enemy" then
    local enemy = entity
    if enemies_touched[enemy] then
      -- If protected we don't want to play the sound repeatedly.
      return
    end
    enemies_touched[enemy] = true
    local reaction = enemy:get_attack_arrow(enemy_sprite)
    enemy:receive_attack_consequence("arrow", reaction)
    attach_to_entity(enemy)
  end
end)

-- Activate crystals and solid switches.
arrow:add_collision_test("overlapping", function(arrow, entity)
  local entity_type = entity:get_type()
  if entity_type == "crystal" then
    -- Activate crystals.
    if flying then
      sol.audio.play_sound("switch")
      map:change_crystal_state()
      attach_to_entity(entity)
    end
  elseif entity_type == "switch" then
    -- Activate solid switches.
    local switch = entity
    local sprite = switch:get_sprite()
    if flying and sprite ~= nil and
         (sprite:get_animation_set() == "entities/switch_crystal" or
         sprite:get_animation_set() == "entities/switch_eye_down" or
         sprite:get_animation_set() == "entities/switch_eye_left" or
         sprite:get_animation_set() == "entities/switch_eye_right" or
         sprite:get_animation_set() == "entities/switch_eye_up" or
         sprite:get_animation_set() == "entities/switch_eye_invisible") then
      if not switch:is_activated() then
        sol.audio.play_sound("switch")
        switch:set_activated(true)
        if switch:on_activated() ~= nil then switch:on_activated() end
      end
      attach_to_entity(entity)
    end
  end
end)

function arrow:get_sprite_id()
  return sprite_id
end

function arrow:set_sprite_id(id)
  sprite_id = id
end

function arrow:get_force()
  return force
end

function arrow:set_force(f)
  force = f
end

function arrow:go()
  local sprite_id = arrow:get_sprite_id()
  sprite = arrow:create_sprite(sprite_id)
  sprite:set_animation("flying")
  sprite:set_direction(direction)

  local movement = sol.movement.create("straight")
  local angle = direction * math.pi / 2
  movement:set_speed(192)
  movement:set_angle(angle)
  movement:set_smooth(false)
  movement:set_max_distance(500)
  movement:start(arrow)
  flying = true
end

function arrow:on_obstacle_reached()
  attach_to_obstacle()
end

The arrows always just go through the switches and enemies...

Hey I'm having a bit of trouble with arrow switches. 1)When I shoot an arrow, the arrow goes straight through the switch rather than activating it. 2) Is it possible to require more than one switch in order to activate a dynamic tile like a bridge?

Code ( lua) Select Expand

local entity = ...

function entity:on_created()
  self:create_sprite("entities/spring")
  self:set_size(16, 16)
  self:set_origin(16, 16)
  self:set_traversable_by(true)
 
  local game = self:get_game()
  local hero = game:get_hero()
 
 
  sol.timer.start(1000, function()
    if entity:overlaps(hero) then
      game:add_life(1)
      hero:set_animation("plunging_water")
    end
    return true
  end)
 
end


This sort of does what I want but I'm not sure what needs to be done to make the animation work without being part of the timer function

For the spring the player is meant to be able to go in without requiring the flippers so I don't think setting the ground to deep water would work and should just use the animation for swimming but to just be a regular traversable

That code works perfect and is way cleaner than mine was. Thanks. 

but for adding an animation would I have to use set animation or get? The custom entity is meant to be for a hot spring so the player would be using a swim animation

Alright I have a basic code with the collision test 

Code ( lua) Select Expand

local entity = ...
local map = entity:get_map()
local hero = map:get_entity("hero")
local game = entity:get_game()
local timer

function entity:on_created()
  self:create_sprite("entities/spring")
  self:set_size(16, 16)
  self:set_origin(16, 16)
  self:set_traversable_by(true)
end

entity:add_collision_test("overlapping", function(spring, other)
    if other:get_type() ~= "hero" then
      return
    end
sol.timer.start(1000, function()
  game:add_life(1)
  return true
  end)
end)

but not too sure on what to use for ending the timer when not on the collision

Hey so I was trying to make a custom entity that restores health over time. The code basically works fine but the timer covers the entire map rather than just when traversing the entity. Is there a way to make it so the hero has to be on the entity for the timer to activate?

Also, how do i change the hero animation on the entity because set_animation doesnt seem to be working...

Ah I completely forgot about that. Thanks Renkineko that worked perfectly 

Yeah its english...Should be the same since all the data is copied from my desktop and the language was set as en there

I just got a new laptop and I tried to move the data to it, but now the screen is black and I am receiving an error that did not exist on my original computer.

"Error: In timer callback: [string "scripts/menus/title.lua"]:27: attempt to index local 'zs_presents_img' (a nil value)"

I had this error before, but it was fixed so I'm not sure why it is suddenly reappearing when I have double checked that the image required exists under languages