camera.script

_G.world_width = 4096   -- The total world size
_G.world_height = 3000
local camera_speed = 300   -- Speed of camera movement
_G.camera_pos = vmath.vector3()
function init(self)
	self.camera = go.get_id()
	self.camera_position = go.get_position(self.camera)

	self.screen_width = _G.window_width
	self.screen_height = _G.window_height

	-- Movement direction (continuous movement when key is held)
	self.move_x = 0
	self.move_y = 0
	msg.post(".", "acquire_input_focus")
end

function update(self, dt)
	-- Smooth movement using velocity and delta time
	local dx = self.move_x * camera_speed * dt
	local dy = self.move_y * camera_speed * dt

	-- Update position
	self.camera_position.x = self.camera_position.x + dx
	self.camera_position.y = self.camera_position.y + dy

	-- Ensure camera stays inside world bounds
	local half_screen_width = self.screen_width / 2
	local half_screen_height = self.screen_height / 2

	self.camera_position.x = math.max(half_screen_width, math.min(self.camera_position.x, _G.world_width - half_screen_width))
	self.camera_position.y = math.max(half_screen_height, math.min(self.camera_position.y, _G.world_height - half_screen_height))
	-- Apply position update
	go.set_position(self.camera_position, self.camera)

	-- Update global camera position
	_G.camera_pos = go.get_position()
end

function on_input(self, action_id, action)
	-- Adjust movement direction based on key press/release
	if action_id == hash("left") then
		self.move_x = action.pressed and -1 or (action.released and 0 or self.move_x)
	elseif action_id == hash("right") then
		self.move_x = action.pressed and 1 or (action.released and 0 or self.move_x)
	elseif action_id == hash("up") then
		self.move_y = action.pressed and 1 or (action.released and 0 or self.move_y)
	elseif action_id == hash("down") then
		self.move_y = action.pressed and -1 or (action.released and 0 or self.move_y)
	end
	msg.post("/initfactory#init_spawner", "offset", {pos = self.camera_position})	
end