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write_input_instruction

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Quaternions 2023-10-18 19:09:57 -07:00
parent 97ca5bca3b
commit 2c379d22a2
1 changed files with 69 additions and 0 deletions
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69
src/sniffer.rs
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@ -87,3 +87,72 @@ loop{
BLOCK_DEMO_HEADER:
//timeline of loading maps, player equipment, bots
*/
struct PhysicsInputInstructionDeltaState{
mouse_pos:glam::IVec2,
time:crate::integer::Time,
}
//everything must be 4 byte aligned, it's all going to be compressed so don't think too had about saving less than 4 bytes
//8B - 24B
fn write_input_instruction<W:std::io::Write>(state:&mut PhysicsInputInstructionDeltaState,w:&mut W,ins:&crate::instruction::TimedInstruction<crate::physics::PhysicsInputInstruction>){
let dt=ins.time-state.time;
//TODO: insert idle instruction if gap is over u32 nanoseconds
//OR: end the data block! the full state at the start of the next block will contain an absolute timestamp
w.write(&(dt.nanos() as u32).to_le_bytes());//4B
let parity=match &ins.instruction{
crate::physics::PhysicsInputInstruction::SetMoveRight(true)
|crate::physics::PhysicsInputInstruction::SetMoveUp(true)
|crate::physics::PhysicsInputInstruction::SetMoveBack(true)
|crate::physics::PhysicsInputInstruction::SetMoveLeft(true)
|crate::physics::PhysicsInputInstruction::SetMoveDown(true)
|crate::physics::PhysicsInputInstruction::SetMoveForward(true)
|crate::physics::PhysicsInputInstruction::SetJump(true)
|crate::physics::PhysicsInputInstruction::SetZoom(true)=>1u32<<31,
crate::physics::PhysicsInputInstruction::SetMoveRight(false)
|crate::physics::PhysicsInputInstruction::SetMoveUp(false)
|crate::physics::PhysicsInputInstruction::SetMoveBack(false)
|crate::physics::PhysicsInputInstruction::SetMoveLeft(false)
|crate::physics::PhysicsInputInstruction::SetMoveDown(false)
|crate::physics::PhysicsInputInstruction::SetMoveForward(false)
|crate::physics::PhysicsInputInstruction::SetJump(false)
|crate::physics::PhysicsInputInstruction::SetZoom(false)
|crate::physics::PhysicsInputInstruction::ReplaceMouse(_,_)
|crate::physics::PhysicsInputInstruction::SetNextMouse(_)
|crate::physics::PhysicsInputInstruction::Reset
|crate::physics::PhysicsInputInstruction::Idle=>0u32,
};
//instruction id packed with game control parity bit. This could be 1 byte but it ruins the alignment
w.write(&(ins.instruction as u32|parity).to_le_bytes());//4B
match &ins.instruction{
crate::physics::PhysicsInputInstruction::ReplaceMouse(m0,m1)=>{//16B
let dm0=m0.pos-state.mouse_pos;
w.write(&(dm0.x as i16).to_le_bytes());
w.write(&(dm0.y as i16).to_le_bytes());
w.write(&((m0.time-ins.time).nanos() as u32).to_le_bytes());
let dm1=m1.pos-m0.pos;
w.write(&(dm1.x as i16).to_le_bytes());
w.write(&(dm1.y as i16).to_le_bytes());
w.write(&((m1.time-m0.time).nanos() as u32).to_le_bytes());
state.mouse_pos=m1.pos;
},
crate::physics::PhysicsInputInstruction::SetNextMouse(m)=>{//8B
let dm=m.pos-state.mouse_pos;
w.write(&(dm.x as i16).to_le_bytes());
w.write(&(dm.y as i16).to_le_bytes());
w.write(&((m.time-state.time).nanos() as u32).to_le_bytes());
state.mouse_pos=m.pos;
},
//0B
crate::physics::PhysicsInputInstruction::SetMoveRight(_)
|crate::physics::PhysicsInputInstruction::SetMoveUp(_)
|crate::physics::PhysicsInputInstruction::SetMoveBack(_)
|crate::physics::PhysicsInputInstruction::SetMoveLeft(_)
|crate::physics::PhysicsInputInstruction::SetMoveDown(_)
|crate::physics::PhysicsInputInstruction::SetMoveForward(_)
|crate::physics::PhysicsInputInstruction::SetJump(_)
|crate::physics::PhysicsInputInstruction::SetZoom(_)
|crate::physics::PhysicsInputInstruction::Reset
|crate::physics::PhysicsInputInstruction::Idle=>(),
}
state.time=ins.time;
}