pub enum Error{
	InvalidHeader,
	InvalidSegment,
}

/* block types

BLOCK_BOT_HEADER:
u128 map_resource_uuid //which map is this bot running
//don't include style info in bot header because it's in the simulation state
//blocks are laid out in chronological order, but indices may jump around.
u64 num_segments
for _ in 0..num_segments{
	i64 time //simulation_state timestamp
	u64 block_id
}

BLOCK_BOT_SEGMENT:
//format version indicates what version of these structures to use
SimulationState simulation_state //SimulationState is just under ClientState which includes Play/Pause events that the simulation doesn't know about.
//to read, greedily decode instructions until eof
loop{
	//delta encode as much as possible (time,mousepos)
	//strafe ticks are implied
	//physics can be implied in an input-only bot file
	TimedInstruction<SimulationInstruction> instruction
}

*/

//xdd
mod simulation{
	pub struct State{}
	pub struct Instruction{}
}
mod instruction{
	pub struct TimedInstruction<Instruction>{instruction:Instruction}
}
mod timeline{
	pub struct Timeline<Instruction>{timeline:Vec<super::instruction::TimedInstruction<Instruction>>}
}

//serious code

struct SegmentId(u64);

pub struct Segment{
	state:simulation::State,
	instructions:Vec<instruction::TimedInstruction<simulation::Instruction>>
}

pub struct StreamableBot{
	file:crate::file::File,
	timeline:timeline::Timeline<SegmentId>,
}
impl StreamableBot{
	pub fn new(file:crate::file::File)->Result<Self,Error>{
		Err(Error::InvalidHeader)
	}
	pub fn load_segment(&mut self,segment_id:u64)->Result<Segment,Error>{
		//load region from disk
		//parse the models and determine what resources need to be loaded
		//load resources into self.resources
		//return Region
		Err(Error::InvalidSegment)
	}
}