implement config

src/main.rs

@@ -10,6 +10,7 @@ mod model;
 mod zeroes;
 mod worker;
 mod physics;
+mod settings;
 mod framework;
 mod primitives;
 mod instruction;
@@ -64,10 +65,10 @@ fn perspective_rh(fov_x_slope: f32, fov_y_slope: f32, z_near: f32, z_far: f32) -
 	)
 }
 impl GraphicsCamera{
-	pub fn new(screen_size:glam::UVec2,fov_y:f32)->Self{
+	pub fn new(screen_size:glam::UVec2,fov:glam::Vec2)->Self{
 		Self{
 			screen_size,
-			fov: glam::vec2(fov_y*(screen_size.x as f32)/(screen_size.y as f32),fov_y),
+			fov,
 		}
 	}
 	pub fn proj(&self)->glam::Mat4{
@@ -77,10 +78,6 @@ impl GraphicsCamera{
 		//f32 good enough for view matrix
 		glam::Mat4::from_translation(pos) * glam::Mat4::from_euler(glam::EulerRot::YXZ, angles.x, angles.y, 0f32)
 	}
-	pub fn set_screen_size(&mut self,screen_size:glam::UVec2){
-		self.screen_size=screen_size;
-		self.fov.x=self.fov.y*(screen_size.x as f32)/(screen_size.y as f32);
-	}
 
 	pub fn to_uniform_data(&self,(pos,angles): (glam::Vec3,glam::Vec2)) -> [f32; 16 * 4] {
 		let proj=self.proj();
@@ -114,12 +111,16 @@ impl GraphicsState{
 	pub fn clear(&mut self){
 		self.models.clear();
 	}
+	pub fn load_user_settings(&mut self,user_settings:&settings::UserSettings){
+		self.camera.fov=user_settings.calculate_fov(1.0,&self.camera.screen_size).as_vec2();
+	}
 }
 
 pub struct GlobalState{
 	start_time: std::time::Instant,
 	manual_mouse_lock:bool,
 	mouse:physics::MouseState,
+	user_settings:settings::UserSettings,
 	graphics:GraphicsState,
 	physics_thread:worker::CompatWorker<TimedInstruction<InputInstruction>,physics::PhysicsOutputState,Box<dyn FnMut(TimedInstruction<InputInstruction>)->physics::PhysicsOutputState>>,
 }
@@ -413,6 +414,8 @@ impl framework::Example for GlobalState {
 		device: &wgpu::Device,
 		queue: &wgpu::Queue,
 	) -> Self {
+		//wee
+		let user_settings=settings::read_user_settings();
 		let mut indexed_models = Vec::new();
 		indexed_models.append(&mut model::generate_indexed_model_list_from_obj(obj::ObjData::load_buf(&include_bytes!("../models/teslacyberv3.0.obj")[..]).unwrap(),*glam::Vec4::ONE.as_ref()));
 		indexed_models.push(primitives::unit_sphere());
@@ -752,7 +755,11 @@ impl framework::Example for GlobalState {
 
 		let mut physics = physics::PhysicsState::default();
 
-		let camera=GraphicsCamera::new(glam::uvec2(config.width,config.height), 1.0);
+		physics.load_user_settings(&user_settings);
+
+		let screen_size=glam::uvec2(config.width,config.height);
+
+		let camera=GraphicsCamera::new(screen_size,user_settings.calculate_fov(1.0,&screen_size).as_vec2());
 		let camera_uniforms = camera.to_uniform_data(physics.output().adjust_mouse(&physics.next_mouse));
 		let camera_buf = device.create_buffer_init(&wgpu::util::BufferInitDescriptor {
 			label: Some("Camera"),
@@ -787,7 +794,7 @@ impl framework::Example for GlobalState {
 
 		let depth_view = Self::create_depth_texture(config, device);
 
-		let graphics=GraphicsState {
+		let mut graphics=GraphicsState {
 			pipelines:GraphicsPipelines{
 				skybox:sky_pipeline,
 				model:model_pipeline
@@ -806,6 +813,8 @@ impl framework::Example for GlobalState {
 			temp_squid_texture_view: squid_texture_view,
 		};
 
+		graphics.load_user_settings(&user_settings);
+
 		let indexed_model_instances=model::IndexedModelInstances{
 			textures:Vec::new(),
 			models:indexed_models,
@@ -827,6 +836,7 @@ impl framework::Example for GlobalState {
 			start_time:Instant::now(),
 			manual_mouse_lock:false,
 			mouse:physics::MouseState::default(),
+			user_settings,
 			graphics,
 			physics_thread,
 		};
@@ -888,9 +898,11 @@ impl framework::Example for GlobalState {
 						time:physics.time,
 						instruction: PhysicsInstruction::Input(physics::PhysicsInputInstruction::Reset),
 					});
+					physics.load_user_settings(&self.user_settings);
 					physics.generate_models(&indexed_model_instances);
 					self.physics_thread=physics.into_worker();
 
+					//graphics.load_user_settings(&self.user_settings);
 					self.generate_model_graphics(device,queue,indexed_model_instances);
 					//manual reset
 				}else{
@@ -1029,7 +1041,8 @@ impl framework::Example for GlobalState {
 		_queue: &wgpu::Queue,
 	) {
 		self.graphics.depth_view = Self::create_depth_texture(config, device);
-		self.graphics.camera.set_screen_size(glam::uvec2(config.width, config.height));
+		self.graphics.camera.screen_size=glam::uvec2(config.width, config.height);
+		self.graphics.load_user_settings(&self.user_settings);
 	}
 
 	fn render(

src/physics.rs

@@ -175,7 +175,7 @@ impl PhysicsCamera {
 		Self{
 			offset,
 			angles: glam::DVec2::ZERO,
-			sensitivity: glam::dvec2(1.0/16384.0,1.0/16384.0),
+			sensitivity: glam::dvec2(1.0/1024.0,1.0/1024.0),
 			mouse:MouseState{pos:glam::IVec2::ZERO,time:-1},//escape initialization hell divide by zero
 		}
 	}
@@ -617,6 +617,10 @@ impl PhysicsState {
 		println!("Physics Objects: {}",self.models.len());
 	}
 
+	pub fn load_user_settings(&mut self,user_settings:&crate::settings::UserSettings){
+		self.camera.sensitivity=user_settings.calculate_sensitivity();
+	}
+
 	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)

src/settings.rs

@@ -0,0 +1,124 @@
+struct Ratio{
+	ratio:f64,
+}
+enum DerivedFov{
+	FromScreenAspect,
+	FromAspect(Ratio),
+}
+enum Fov{
+	Exactly{x:f64,y:f64},
+	DeriveX{x:DerivedFov,y:f64},
+	DeriveY{x:f64,y:DerivedFov},
+}
+impl Default for Fov{
+	fn default() -> Self {
+		Fov::DeriveX{x:DerivedFov::FromScreenAspect,y:1.0}
+	}
+}
+
+enum Sensitivity{
+	Exactly{x:f64,y:f64},
+	DeriveX{x:Ratio,y:f64},
+	DeriveY{x:f64,y:Ratio},
+}
+impl Default for Sensitivity{
+	fn default() -> Self {
+		Sensitivity::DeriveY{x:0.001,y:Ratio{ratio:1.0}}
+	}
+}
+
+
+#[derive(Default)]
+pub struct UserSettings{
+	fov:Fov,
+	sensitivity:Sensitivity,
+}
+impl UserSettings{
+	pub fn calculate_fov(&self,zoom:f64,screen_size:&glam::UVec2)->glam::DVec2{
+		zoom*match &self.fov{
+			&Fov::Exactly{x,y}=>glam::dvec2(x,y),
+			Fov::DeriveX{x,y}=>match x{
+				DerivedFov::FromScreenAspect=>glam::dvec2(y*(screen_size.x as f64/screen_size.y as f64),*y),
+				DerivedFov::FromAspect(ratio)=>glam::dvec2(y*ratio.ratio,*y),
+			},
+			Fov::DeriveY{x,y}=>match y{
+				DerivedFov::FromScreenAspect=>glam::dvec2(*x,x*(screen_size.y as f64/screen_size.x as f64)),
+				DerivedFov::FromAspect(ratio)=>glam::dvec2(*x,x*ratio.ratio),
+			},
+		}
+	}
+	pub fn calculate_sensitivity(&self)->glam::DVec2{
+		match &self.sensitivity{
+			&Sensitivity::Exactly{x,y}=>glam::dvec2(x,y),
+			Sensitivity::DeriveX{x,y}=>glam::dvec2(y*x.ratio,*y),
+			Sensitivity::DeriveY{x,y}=>glam::dvec2(*x,x*y.ratio),
+		}
+	}
+}
+
+/*
+//sensitivity is raw input dots (i.e. dpi = dots per inch) to radians conversion factor
+sensitivity_x=0.001
+sensitivity_y_from_x_ratio=1
+Sensitivity::DeriveY{x:0.0.001,y:DerivedSensitivity{ratio:1.0}}
+*/
+
+pub fn read_user_settings()->UserSettings{
+	let mut cfg=configparser::ini::Ini::new();
+	if let Ok(_)=cfg.load("settings.conf"){
+		let (cfg_fov_x,cfg_fov_y)=(cfg.getfloat("camera","fov_x"),cfg.getfloat("camera","fov_y"));
+		let fov=match(cfg_fov_x,cfg_fov_y){
+			(Ok(Some(fov_x)),Ok(Some(fov_y)))=>Fov::Exactly {
+				x:fov_x,
+				y:fov_y
+			},
+			(Ok(Some(fov_x)),Ok(None))=>Fov::DeriveY{
+				x:fov_x,
+				y:if let Ok(Some(fov_y_from_x_ratio))=cfg.getfloat("camera","fov_y_from_x_ratio"){
+					DerivedFov::FromAspect(Ratio{ratio:fov_y_from_x_ratio})
+				}else{
+					DerivedFov::FromScreenAspect
+				}
+			},
+			(Ok(None),Ok(Some(fov_y)))=>Fov::DeriveX{
+				x:if let Ok(Some(fov_x_from_y_ratio))=cfg.getfloat("camera","fov_x_from_y_ratio"){
+					DerivedFov::FromAspect(Ratio{ratio:fov_x_from_y_ratio})
+				}else{
+					DerivedFov::FromScreenAspect
+				},
+				y:fov_y,
+			},
+			_=>{
+				Fov::default()
+			},
+		};
+		let (cfg_sensitivity_x,cfg_sensitivity_y)=(cfg.getfloat("camera","sensitivity_x"),cfg.getfloat("camera","sensitivity_y"));
+		let sensitivity=match(cfg_sensitivity_x,cfg_sensitivity_y){
+			(Ok(Some(sensitivity_x)),Ok(Some(sensitivity_y)))=>Sensitivity::Exactly {
+				x:sensitivity_x,
+				y:sensitivity_y
+			},
+			(Ok(Some(sensitivity_x)),Ok(None))=>Sensitivity::DeriveY{
+				x:sensitivity_x,
+				y:Ratio{
+					ratio:if let Ok(Some(sensitivity_y_from_x_ratio))=cfg.getfloat("camera","sensitivity_y_from_x_ratio"){sensitivity_y_from_x_ratio}else{1.0}
+				}
+			},
+			(Ok(None),Ok(Some(sensitivity_y)))=>Sensitivity::DeriveX{
+				x:Ratio{
+					ratio:if let Ok(Some(sensitivity_x_from_y_ratio))=cfg.getfloat("camera","sensitivity_x_from_y_ratio"){sensitivity_x_from_y_ratio}else{1.0}
+				},
+				y:sensitivity_y,
+			},
+			_=>{
+				Sensitivity::default()
+			},
+		};
+		UserSettings{
+			fov,
+			sensitivity,
+		}
+	}else{
+		UserSettings::default()
+	}
+}