--[[pod_format="raw",created="2024-04-14 14:05:11",modified="2024-04-15 22:01:12",revision=116]]
--include("/cirnofarm/src/actor.lua")

mouse_debug = true
w=480
h=300
asdf = {top=0, side=1}
function _init()

	player={}
	add(player, {
	x=128,
	y=128,
	w=16,
	h=16,
	speed=1.2,
	hflip=false,
	spriteIndex=64,
	move_x=0,
	move_y=0,
	cm=true, -- Collide with map tiles
	cb=true, -- Collide with world bounds
	draw=function(self)
		spr(self.spriteIndex,self.x,self.y, self.hflip)
		drawCollision(self)
	end,
	update=function(self)	
		self.move_x = self.x
		self.move_y = self.y
		if (btn(0)) self.move_x -= self.speed self.hflip = true
		if (btn(1)) self.move_x += self.speed self.hflip = false
		if (btn(2)) self.move_y -= self.speed
		if (btn(3)) self.move_y += self.speed
		
	
		--if (can_move(self.move_x,self.move_y)) then
		--if (cmap(self) == false) then
			self.x = self.move_x
			self.y = self.move_y
		--else
		--	sfx(0)
		--end	
		--if (checkCollision(col_x,col_y) == false) then
		--	x = col_x
		--	y = col_y 
		--end
	end
	})
	
	tile_width = 16
	tile_height = 16
end

function _draw()
	cls(0)
	--camera(x - 240, y - 135)
	
	drawMap()	
	
	for p in all(player) do
		p:draw()
	end

	debug_mouse()		
end

function drawMap()
	for i=2,1,-1 do
		map(fetch"map/0.map"[i].bmp)
	end
end

function _update()
	for p in all(player) do
		p:update()
	end
end

function drawCollision(o)
	local right = o.x+o.w+o.speed
	local left = o.x-o.speed
	local bottom = o.y+o.h+o.speed
	local top = o.y-o.speed
	
	rect(left,top,right,bottom,2)
end

function checkCollision(o)
	-- check right
	-- devo controllare la collisione prima di calcolare il dove, per ogni input direzionale
	local right = o.x+o.w+o.speed
	local left = o.x-o.speed
	local bottom = o.y+o.h+o.speed
	local top = o.y-o.speed
	
	if (not is_tile(1,top,left)
		and not is_tile(1,top,right)
	)

	-- check left
	-- check top
	-- check bottom
	return is_tile(0,x,y)
	--return fget(mget(x/tile_width,y/tile_height),0)
end

function is_tile(tile_type,x,y)
	local tile = mget(x/tile_width,y/tile_height)
	local has_flag = fget(tile,tile_type)
	return has_flag
end

function can_move(x,y)

	

	return not is_tile(1,x,y)
end

function debug_mouse()
	local mx,my = mouse()
	local x_offset = 5
	local y_offset = 5
	
	-- tile size
	local tw=16
	local th=16

	-- window width and height
	local w=480
	local h=270
	
	-- offset if box leaves screen
	if mx>w-20 then x_offset=-15 end
	if my>h-29 then y_offset=-24 end
	
	-- draw debug text box
	local tile_x = mx\tw
	local tile_y = my\th
	local sprite = mget(tile_x,tile_y)
	local flag = fget(sprite)
	rect((tile_x*tw)+tw,(tile_y*th)+th,tile_x*tw,(tile_y*th),8)
	rectfill(mx+x_offset-1,my+y_offset-1,mx+x_offset+14,my+y_offset+23+8,1)
	print(string.format("%d (%d)",tile_x,mx),mx+x_offset,my+y_offset,8)
	print(string.format("%d (%d)",tile_y,my),mx+x_offset,my+y_offset+8,9)
	print(sprite,mx+x_offset,my+y_offset+8*2,10)
	print(flag,mx+x_offset,my+y_offset+8+8*2,10)
end

function cmap(o)
  local ct=false
  local cb=false

  -- if colliding with map tiles
  if(o.cm) then
    local x1=o.x/tile_width
    local y1=o.y/tile_height
    local x2=(o.x+tile_width-1)/tile_width
    local y2=(o.y+tile_height-1)/tile_height
    local a=fget(mget(x1,y1),1)
    local b=fget(mget(x1,y2),1)
    local c=fget(mget(x2,y2),1)
    local d=fget(mget(x2,y1),1)
    ct=a or b or c or d
   end
   -- if colliding world bounds
   if(o.cw) then
     cb=(o.x<0 or o.x+tile_width>w or
           o.y<0 or o.y+tile_height>h)
   end

  return ct or cb
end