Add temperature

cfe7401c7aeedec7faea59e8b6dfa0075545b484

save/src/lib.rs

@@ -6,7 +6,7 @@
 #![warn(macro_use_extern_crate)]
 #![warn(meta_variable_misuse)]
 #![warn(missing_abi)]
-#![warn(missing_copy_implementations)]
+// #![warn(missing_copy_implementations)]
 #![warn(missing_debug_implementations)]
 // #![warn(missing_docs)]
 #![warn(non_ascii_idents)]

save/src/world.rs

@@ -71,17 +71,19 @@ impl Debug for World {
     }
 }
 
-#[derive(Debug, Copy, Clone, Default)]
+#[derive(Debug, Clone, Default)]
 pub struct Biome {
     pub altitude: f32,
     pub rainfall: f32,
     pub temperature: f32,
 }
 
-#[derive(Debug, Copy, Clone, Default)]
+#[derive(Debug, Clone, Default)]
 pub struct TerrainCell {
     pub altitude: f32,
     pub rainfall: f32,
+    pub temperature: f32,
+
     pub rain_accumulated: f32,
     pub previous_rain_accumulated: f32,
 }
@@ -118,11 +120,16 @@ impl World {
     pub const TERRAIN_NOISE_FACTOR_2: f32 = 0.15;
     pub const TERRAIN_NOISE_FACTOR_3: f32 = 0.1;
 
-    pub const MIN_RAINFALL: f32 = -10.0;
+    pub const MIN_RAINFALL: f32 = -20.0;
     pub const MAX_RAINFALL: f32 = 100.0;
     pub const RAINFALL_SPAN: f32 = Self::MAX_RAINFALL - Self::MIN_RAINFALL;
     pub const RAINFALL_ALTITUDE_FACTOR: f32 = 1.0;
 
+    pub const MIN_TEMPERATURE: f32 = -100.0;
+    pub const MAX_TEMPERATURE: f32 = 100.0;
+    pub const TEMPERATURE_SPAN: f32 = Self::MAX_TEMPERATURE - Self::MIN_RAINFALL;
+    pub const TEMPERATURE_ALTITUDE_FACTOR: f32 = 1.0;
+
     pub fn generate(&mut self) -> Result<(), WorldGenError> {
         if let Err(err) = self.generate_altitude() {
             return Err(WorldGenError::CartesianError(err));
@@ -130,6 +137,9 @@ impl World {
         if let Err(err) = self.generate_rainfall() {
             return Err(WorldGenError::CartesianError(err));
         }
+        if let Err(err) = self.generate_temperature() {
+            return Err(WorldGenError::CartesianError(err));
+        }
 
         Ok(())
     }
@@ -357,12 +367,12 @@ impl World {
             for x in 0..self.terrain[y].len() {
                 let beta = (x as f32 / self.width as f32) * TAU;
 
-                let value =
+                let random_noise =
                     self.random_noise_from_polar_coordinates(alpha, beta, RADIUS, offset)?;
 
                 let mut cell = &mut self.terrain[y][x];
 
-                let base_rainfall = Self::calculate_rainfall(value);
+                let base_rainfall = Self::calculate_rainfall(random_noise);
                 let altitude_factor = f32::clamp(
                     (cell.altitude / Self::MAX_ALTITUDE) * Self::RAINFALL_ALTITUDE_FACTOR,
                     0.0,
@@ -383,4 +393,43 @@ impl World {
             Self::MAX_RAINFALL,
         )
     }
+
+    fn generate_temperature(&mut self) -> Result<(), CartesianError> {
+        let offset = Self::random_offset_vector();
+        const RADIUS: f32 = 2.0;
+
+        for y in 0..self.terrain.len() {
+            let alpha = (y as f32 / self.height as f32) * PI;
+            for x in 0..self.terrain[y].len() {
+                let beta = (x as f32 / self.width as f32) * TAU;
+
+                let random_noise =
+                    self.random_noise_from_polar_coordinates(alpha, beta, RADIUS, offset)?;
+
+                let cell = &mut self.terrain[y][x];
+
+                let altitude_factor = 1.0
+                    - f32::clamp(
+                        (cell.altitude / Self::MAX_ALTITUDE) * Self::TEMPERATURE_ALTITUDE_FACTOR,
+                        0.0,
+                        1.0,
+                    );
+
+                let latitude_modifer = (alpha * 0.8) + (random_noise * 0.2 * PI);
+                let base_temperature = Self::calculate_temperature(f32::sin(latitude_modifer));
+
+                cell.temperature = base_temperature * altitude_factor;
+            }
+        }
+
+        Ok(())
+    }
+
+    fn calculate_temperature(raw_temperature: f32) -> f32 {
+        f32::clamp(
+            (raw_temperature * Self::TEMPERATURE_SPAN) + Self::MIN_TEMPERATURE,
+            0.0,
+            Self::MAX_TEMPERATURE,
+        )
+    }
 }

save/src/world_manager.rs

@@ -16,6 +16,8 @@ pub struct WorldManager {
     world: Option<World>,
     #[cfg(feature = "render")]
     rainfall_visible: bool,
+    #[cfg(feature = "render")]
+    temperature_visible: bool,
 }
 
 impl WorldManager {
@@ -25,6 +27,7 @@ impl WorldManager {
             image_handle_id: HandleId::default::<Image>(),
             world: None,
             rainfall_visible: false,
+            temperature_visible: false,
         }
     }
 
@@ -34,11 +37,20 @@ impl WorldManager {
             debug!("Turning rainfall off");
         } else {
             debug!("Turning rainfall on");
-            debug!("World: {:#?}", self.world);
         }
         self.rainfall_visible = !self.rainfall_visible;
     }
 
+    #[cfg(feature = "render")]
+    pub fn toggle_temperature(&mut self) {
+        if self.temperature_visible {
+            debug!("Turning temperature off");
+        } else {
+            debug!("Turning temperature on");
+        }
+        self.temperature_visible = !self.temperature_visible;
+    }
+
     pub fn get_world(&self) -> Option<&World> {
         self.world.as_ref()
     }
@@ -52,24 +64,46 @@ impl WorldManager {
     }
 
     #[cfg(feature = "render")]
-    fn generate_color(cell: &TerrainCell, show_rainfall: bool) -> Color {
+    fn generate_color(&self, cell: &TerrainCell) -> Color {
-        let altitude_color = Self::altitude_contour_color(cell.altitude);
+        let mut final_color = Self::altitude_color(cell.altitude);
-        let rainfall_color = if show_rainfall {
-            Self::rainfall_color(cell.rainfall)
-        } else {
-            Color::BLACK
-        };
 
+        if self.rainfall_visible {
+            let rainfall_color = Self::rainfall_color(cell.rainfall);
             let normalized_rainfall = Self::normalize_rainfall(cell.rainfall);
 
-        let r = (altitude_color.r() * (1.0 - normalized_rainfall))
+            _ = final_color.set_r(
-            + (rainfall_color.r() * normalized_rainfall);
+                (final_color.r() * (1.0 - normalized_rainfall))
-        let g = (altitude_color.g() * (1.0 - normalized_rainfall))
+                    + (rainfall_color.r() * normalized_rainfall),
-            + (rainfall_color.g() * normalized_rainfall);
+            );
-        let b = (altitude_color.b() * (1.0 - normalized_rainfall))
+            _ = final_color.set_g(
-            + (rainfall_color.b() * normalized_rainfall);
+                (final_color.g() * (1.0 - normalized_rainfall))
+                    + (rainfall_color.g() * normalized_rainfall),
+            );
+            _ = final_color.set_b(
+                (final_color.b() * (1.0 - normalized_rainfall))
+                    + (rainfall_color.b() * normalized_rainfall),
+            );
+        }
 
-        Color::rgb_linear(r, g, b)
+        if self.temperature_visible {
+            let temperature_color = Self::temperature_color(cell.temperature);
+            let normalized_temperature = Self::normalize_temperature(cell.temperature);
+
+            _ = final_color.set_r(
+                (final_color.r() * (1.0 - normalized_temperature))
+                    + (temperature_color.r() * normalized_temperature),
+            );
+            _ = final_color.set_g(
+                (final_color.g() * (1.0 - normalized_temperature))
+                    + (temperature_color.g() * normalized_temperature),
+            );
+            _ = final_color.set_b(
+                (final_color.b() * (1.0 - normalized_temperature))
+                    + (temperature_color.b() * normalized_temperature),
+            );
+        }
+
+        final_color
     }
 
     /*
@@ -114,6 +148,17 @@ impl WorldManager {
         }
     }
 
+    #[cfg(feature = "render")]
+    fn temperature_color(temperature: f32) -> Color {
+        let normalized_temperature = Self::normalize_temperature(temperature);
+        Color::rgb(normalized_temperature, 1.0 - normalized_temperature, 0.0)
+    }
+
+    #[cfg(feature = "render")]
+    fn normalize_temperature(temperature: f32) -> f32 {
+        (temperature - World::MIN_TEMPERATURE) / World::TEMPERATURE_SPAN
+    }
+
     #[cfg(feature = "render")]
     pub fn world_colors(&self) -> Vec<Color> {
         match self.get_world() {
@@ -123,7 +168,7 @@ impl WorldManager {
 
                 terrain_cells
                     .iter()
-                    .map(|cell| Self::generate_color(cell, self.rainfall_visible))
+                    .map(|cell| self.generate_color(cell))
                     .collect()
             }
         }

src/main.rs

@@ -6,7 +6,7 @@
 #![warn(macro_use_extern_crate)]
 #![warn(meta_variable_misuse)]
 #![warn(missing_abi)]
-#![warn(missing_copy_implementations)]
+// #![warn(missing_copy_implementations)]
 #![warn(missing_debug_implementations)]
 // #![warn(missing_docs)]
 #![warn(non_ascii_idents)]
@@ -45,6 +45,7 @@ use bevy::{
     core_pipeline::core_2d::Camera2dBundle,
     ecs::{
         change_detection::ResMut,
+        component::Component,
         query::{Changed, With},
         system::{Commands, Query, Res},
     },
@@ -55,12 +56,12 @@ use bevy::{
             Extent3d, TextureDescriptor, TextureDimension, TextureFormat, TextureUsages,
         },
         texture::{Image, ImageSettings},
-        view::Visibility,
     },
     ui::{
-        entity::{ButtonBundle, ImageBundle, TextBundle},
+        entity::{ButtonBundle, ImageBundle, NodeBundle, TextBundle},
         widget::Button,
-        AlignItems, Interaction, JustifyContent, Size, Style, UiColor, UiImage, UiRect, Val,
+        AlignItems, FocusPolicy, Interaction, JustifyContent, Size, Style, UiColor, UiImage,
+        UiRect, Val,
     },
     utils::default,
     window::{CursorIcon, WindowDescriptor, Windows},
@@ -76,25 +77,30 @@ fn refresh_world_texture(images: &mut Assets<Image>, world_manager: &WorldManage
     images.get_mut(&image_handle).unwrap().data = world_manager.world_color_bytes();
 }
 
+#[cfg(feature = "render")]
+#[derive(Component, Default)]
+struct RainfallButton;
+
+#[cfg(feature = "render")]
+#[derive(Component, Default)]
+struct TemperatureButton;
+
 const NORMAL_BUTTON: Color = Color::rgb(0.15, 0.15, 0.15);
 const HOVERED_BUTTON: Color = Color::rgb(0.25, 0.25, 0.25);
 const PRESSED_BUTTON: Color = Color::rgb(0.35, 0.60, 0.35);
 #[cfg(feature = "render")]
-fn handle_button_interaction(
+fn handle_rainfall_button(
     mut interaction_query: Query<
         '_,
         '_,
-        (&Interaction, &mut UiColor /*, &Children*/),
+        (&Interaction, &mut UiColor),
-        (Changed<Interaction>, With<Button>),
+        (Changed<Interaction>, With<RainfallButton>),
     >,
-    // mut text_query: Query<'_, '_, &mut Text>,
     mut windows: ResMut<'_, Windows>,
     mut images: ResMut<'_, Assets<Image>>,
     mut world_manager: ResMut<'_, WorldManager>,
 ) {
-    for (interaction, mut color /*, children*/) in &mut interaction_query {
+    for (interaction, mut color) in &mut interaction_query {
-        // let mut text = text_query.get_mut(children[0]).unwrap();
-
         match *interaction {
             Interaction::Clicked => {
                 windows.primary_mut().set_cursor_icon(CursorIcon::Default);
@@ -115,6 +121,39 @@ fn handle_button_interaction(
     }
 }
 
+#[cfg(feature = "render")]
+fn handle_temperature_button(
+    mut interaction_query: Query<
+        '_,
+        '_,
+        (&Interaction, &mut UiColor),
+        (Changed<Interaction>, With<TemperatureButton>),
+    >,
+    mut windows: ResMut<'_, Windows>,
+    mut images: ResMut<'_, Assets<Image>>,
+    mut world_manager: ResMut<'_, WorldManager>,
+) {
+    for (interaction, mut color) in &mut interaction_query {
+        match *interaction {
+            Interaction::Clicked => {
+                windows.primary_mut().set_cursor_icon(CursorIcon::Default);
+                *color = PRESSED_BUTTON.into();
+                debug!("Toggling temperature");
+                world_manager.toggle_temperature();
+                refresh_world_texture(&mut images, &world_manager)
+            }
+            Interaction::Hovered => {
+                windows.primary_mut().set_cursor_icon(CursorIcon::Hand);
+                *color = HOVERED_BUTTON.into();
+            }
+            Interaction::None => {
+                windows.primary_mut().set_cursor_icon(CursorIcon::Default);
+                *color = NORMAL_BUTTON.into();
+            }
+        }
+    }
+}
+
 #[cfg(feature = "render")]
 fn generate_graphics(
     mut commands: Commands<'_, '_>,
@@ -155,25 +194,30 @@ fn generate_graphics(
         })
         .with_children(|world_map| {
             _ = world_map
+                .spawn_bundle(NodeBundle {
+                    style: Style {
+                        size: Size::new(Val::Percent(100.0), Val::Undefined),
+                        padding: UiRect::all(Val::Px(3.0)),
+                        justify_content: JustifyContent::SpaceAround,
+                        ..default()
+                    },
+                    color: Color::NONE.into(),
+                    focus_policy: FocusPolicy::Pass,
+                    ..default()
+                })
+                .with_children(|button_box| {
+                    _ = button_box
                         .spawn_bundle(ButtonBundle {
                             button: Button,
                             style: Style {
                                 align_items: AlignItems::Center,
                                 justify_content: JustifyContent::Center,
-                        margin: UiRect {
-                            left: Val::Auto,
-                            right: Val::Px(20.0),
-                            top: Val::Auto,
-                            bottom: Val::Px(20.0),
-                            ..default()
-                        },
-                        padding: UiRect::all(Val::Px(2.0)),
                                 ..default()
                             },
                             color: NORMAL_BUTTON.into(),
-                    visibility: Visibility::visible(),
                             ..default()
                         })
+                        .insert(RainfallButton::default())
                         .with_children(|button| {
                             _ = button.spawn_bundle(TextBundle {
                                 text: bevy::text::Text::from_section(
@@ -187,6 +231,32 @@ fn generate_graphics(
                                 ..default()
                             });
                         });
+                    _ = button_box
+                        .spawn_bundle(ButtonBundle {
+                            button: Button,
+                            style: Style {
+                                align_items: AlignItems::Center,
+                                justify_content: JustifyContent::Center,
+                                ..default()
+                            },
+                            color: NORMAL_BUTTON.into(),
+                            ..default()
+                        })
+                        .insert(TemperatureButton::default())
+                        .with_children(|button| {
+                            _ = button.spawn_bundle(TextBundle {
+                                text: bevy::text::Text::from_section(
+                                    "Toggle temperature",
+                                    bevy::text::TextStyle {
+                                        font: asset_server.load("JuliaMono.ttf"),
+                                        font_size: 20.0,
+                                        color: Color::WHITE,
+                                    },
+                                ),
+                                ..default()
+                            });
+                        });
+                });
         });
 }
 
@@ -209,7 +279,8 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
                 ..default()
             })
             .add_startup_system(generate_graphics)
-            .add_system(handle_button_interaction);
+            .add_system(handle_rainfall_button)
+            .add_system(handle_temperature_button);
     }
     #[cfg(not(feature = "render"))]
     {