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