hashmap map ids into internal structure ids

src/body.rs

@@ -329,6 +329,7 @@ pub struct PhysicsState{
 	pub models:Vec<ModelPhysics>,
 	
 	pub modes:Vec<crate::model::ModeDescription>,
+	pub mode_from_mode_id:std::collections::HashMap::<u32,usize>,
 	//the spawn point is where you spawn when you load into the map.
 	//This is not the same as Reset which teleports you to Spawn0
 	pub spawn_point:glam::Vec3,
@@ -557,6 +558,13 @@ impl PhysicsState {
 		self.models.clear();
 		self.modes.clear();
 	}
+	pub fn get_mode(&self,mode_id:u32)->Option<&crate::model::ModeDescription>{
+		if let Some(&mode)=self.mode_from_mode_id.get(&mode_id){
+			self.modes.get(mode)
+		}else{
+			None
+		}
+	}
 	//tickless gaming
 	pub fn run(&mut self, time_limit:TIME){
 		//prepare is ommitted - everything is done via instructions.

src/main.rs

@@ -147,14 +147,22 @@ impl GlobalState{
 				}
 			}
 		}
+		let num_modes=self.physics.modes.len();
+		for (mode_id,mode) in eshmep{
+			self.physics.mode_from_mode_id.insert(mode_id,num_modes+mode);
+		}
 		self.physics.modes.append(&mut modedatas.into_iter().map(|mut tup|{
 			tup.1.sort_by_key(|tup|tup.0);
 			tup.2.sort_by_key(|tup|tup.0);
+			let mut eshmep1=std::collections::HashMap::new();
+			let mut eshmep2=std::collections::HashMap::new();
 			model::ModeDescription{
 				start:tup.0,
-				spawns:tup.1.into_iter().map(|tup|tup.1).collect(),
-				ordered_checkpoints:tup.2.into_iter().map(|tup|tup.1).collect(),
+				spawns:tup.1.into_iter().enumerate().map(|(i,tup)|{eshmep1.insert(tup.0,i);tup.1}).collect(),
+				ordered_checkpoints:tup.2.into_iter().enumerate().map(|(i,tup)|{eshmep2.insert(tup.0,i);tup.1}).collect(),
 				unordered_checkpoints:tup.3,
+				spawn_from_stage_id:eshmep1,
+				ordered_checkpoint_from_checkpoint_id:eshmep2,
 			}
 		}).collect());
 		println!("Physics Objects: {}",self.physics.models.len());
@@ -590,6 +598,7 @@ impl framework::Example for GlobalState {
 			world:body::WorldState{},
 			game:body::GameMechanicsState::default(),
 			modes:Vec::new(),
+			mode_from_mode_id:std::collections::HashMap::new(),
 		};
 
 		//load textures

src/model.rs

@@ -85,6 +85,24 @@ pub struct ModeDescription{
 	pub spawns:Vec<u32>,//spawns[spawn_id]=model_id
 	pub ordered_checkpoints:Vec<u32>,//ordered_checkpoints[checkpoint_id]=model_id
 	pub unordered_checkpoints:Vec<u32>,//unordered_checkpoints[checkpoint_id]=model_id
+	pub spawn_from_stage_id:std::collections::HashMap::<u32,usize>,
+	pub ordered_checkpoint_from_checkpoint_id:std::collections::HashMap::<u32,usize>,
+}
+impl ModeDescription{
+	pub fn get_spawn_model_id(&self,stage_id:u32)->Option<&u32>{
+		if let Some(&spawn)=self.spawn_from_stage_id.get(&stage_id){
+			self.spawns.get(spawn)
+		}else{
+			None
+		}
+	}
+	pub fn get_ordered_checkpoint_model_id(&self,checkpoint_id:u32)->Option<&u32>{
+		if let Some(&checkpoint)=self.ordered_checkpoint_from_checkpoint_id.get(&checkpoint_id){
+			self.ordered_checkpoints.get(checkpoint)
+		}else{
+			None
+		}
+	}
 }
 pub enum TempIndexedAttributes{
 	Start{