-- posició en el gif (tiles de 32)
health_potion_gif_x = 192
health_potion_gif_y = 128

health_potion={
    name="health_potion",
    hab=1,
    x=1,y=1,
    vx=0, vy=0,
    w=16,h=16,
    y_speed=1,
    max_height=16,
    heal = 2,
    raising=false,
    enabled=false,
    wait = 0,
    bb={x=4,y=0,w=9,h=16}
}

function health_potion.init(hab, x, y, y_speed, max_height, heal)
    health_potion.hab = hab
    health_potion.x = x
    health_potion.y = y
    health_potion.y_speed = y_speed
    health_potion.max_height = max_height
    health_potion.heal = heal
    if max_height>0 then health_potion.raising=true end

    --local world_x, world_y = coords.room_to_world(health_potion.hab,health_potion.x,health_potion.y)
    --health_potion.x=world_x
    --health_potion.y=world_y
    
    health_potion.update=health_potion.update
    health_potion.draw=health_potion.draw
    health_potion.enabled=true
end

function health_potion.draw()
    if not health_potion.enabled then return end
    local x = health_potion_gif_x
	local y = health_potion_gif_y
    local scr_x, scr_y = viewp:screen_coords( health_potion.x, health_potion.y )
    draw.surf(x,y,health_potion.w,health_potion.h,scr_x,scr_y,health_potion.w,health_potion.h)
    -- draw.rect(scr_x+health_potion.bb.x,scr_y+health_potion.bb.y,health_potion.bb.w,health_potion.bb.h,3)
end

function health_potion.update()
    if not health_potion.enabled then return end
    if health_potion.raising and health_potion.y_speed>0 then
        health_potion.y_speed = -health_potion.y_speed
    elseif not health_potion.raising and health_potion.y_speed<0 then
        health_potion.y_speed = -health_potion.y_speed
    end
    
    local x2_check = health_potion.x+health_potion.bb.x+health_potion.bb.w
    local x1_check = health_potion.x+health_potion.bb.x
    local y_check = health_potion.y+health_potion.bb.h+health_potion.y_speed
    
    if true then 
        health_potion.wait=0
        health_potion.max_height = health_potion.max_height+health_potion.y_speed
        health_potion.y = health_potion.y+health_potion.y_speed
        if health_potion.max_height==0 then health_potion.raising=false end
    end
    health_potion.wait=health_potion.wait+1
    
    local tile1_hit_type= arc_check_tile(x1_check, y_check )
    local tile2_hit_type= arc_check_tile(x2_check, y_check)
    local block_tile = tile1_hit_type == tiletype.block or tile2_hit_type == tiletype.block
    
    if block_tile then health_potion.y_speed=0 end
    health_potion.hab = coords.world_to_tile(health_potion.x, health_potion.y)
    if health_potion.hab==abad.hab then
        if collision(abad,health_potion) then
            -- abad.objects.health_potion=true
            -- remove_actor(health_potion)
            abad_heal(health_potion.heal)
            health_potion.enabled = false
        end
    end
end