Hack to allow minimap rotation.

Currently it just always rotates towards the camera, but it wouldn't be
hard to create a config option that swaps out the rotation of the
indicator and the map.

CHANGELOG.md

@@ -10,8 +10,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Added
 
 - Added music system
+- Added zoomable and rotatable minimap
+- Added rotating orientation marker to main-map
 
 ### Changed
+- Brighter / higher contrast main-map
 
 ### Removed
 

assets/voxygen/shaders/ui-frag.glsl

@@ -20,7 +20,8 @@ void main() {
     if (f_mode == uint(0)) {
         tgt_color = f_color * vec4(1.0, 1.0, 1.0, texture(u_tex, f_uv).a);
     // Image
-    } else if (f_mode == uint(1)) {
+    // HACK: bit 0 is set for both ordinary and north-facing images.
+    } else if ((f_mode & uint(1)) == uint(1)) {
         tgt_color = f_color * texture(u_tex, f_uv);
     // 2D Geometry
     } else if (f_mode == uint(2)) {

assets/voxygen/shaders/ui-vert.glsl

@@ -4,6 +4,7 @@
 
 in vec2 v_pos;
 in vec2 v_uv;
+in vec2 v_center;
 in vec4 v_color;
 in uint v_mode;
 
@@ -19,15 +20,31 @@ flat out uint f_mode;
 out vec4 f_color;
 
 void main() {
-    f_uv = v_uv;
     f_color = v_color;
 
     if (w_pos.w == 1.0) {
+        f_uv = v_uv;
         // Fixed scale In-game element      
         vec4 projected_pos = proj_mat * view_mat * vec4(w_pos.xyz, 1.0); 
         gl_Position = vec4(projected_pos.xy / projected_pos.w + v_pos, 0.0, 1.0); 
+    } else if (v_mode == uint(3)) {
+        // HACK: North facing source rectangle.
+        vec2 look_at_dir = normalize(vec2(-view_mat[0][2], -view_mat[1][2]));
+        mat2 look_at = mat2(look_at_dir.y, look_at_dir.x, -look_at_dir.x, look_at_dir.y);
+        f_uv = v_center + look_at * (v_uv - v_center);
+        gl_Position = vec4(v_pos, 0.0, 1.0);
+    } else if (v_mode == uint(5)) {
+        // HACK: North facing target rectangle.
+        f_uv = v_uv;
+        float aspect_ratio = screen_res.x / screen_res.y;
+        vec2 look_at_dir = normalize(vec2(-view_mat[0][2], -view_mat[1][2]));
+        mat2 look_at = mat2(look_at_dir.y, -look_at_dir.x, look_at_dir.x, look_at_dir.y);
+        vec2 v_len = v_pos - v_center;
+        vec2 v_proj = look_at * vec2(v_len.x, v_len.y / aspect_ratio);
+        gl_Position = vec4(v_center + vec2(v_proj.x, v_proj.y * aspect_ratio), 0.0, 1.0);
     } else {
         // Interface element
+        f_uv = v_uv;
         gl_Position = vec4(v_pos, 0.0, 1.0);
     }
     f_mode = v_mode;

voxygen/src/hud/img_ids.rs

@@ -8,6 +8,13 @@ rotation_image_ids! {
         // Tooltip Test
         tt_side: "voxygen/element/frames/tt_test_edge",
         tt_corner: "voxygen/element/frames/tt_test_corner_tr",
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////
+
+        <VoxelPixArtGraphic>
+
+        // Minimap
+        indicator_mmap_small: "voxygen.element.buttons.indicator_mmap_small",
     }
 }
 
@@ -131,7 +138,6 @@ image_ids! {
         skull_2: "voxygen.element.icons.skull_2",
 
         // Map
-        map_indicator: "voxygen.element.buttons.map_indicator",
         indicator_mmap: "voxygen.element.buttons.indicator_mmap",
         indicator_mmap_2: "voxygen.element.buttons.indicator_mmap_2",
         indicator_mmap_3: "voxygen.element.buttons.indicator_mmap_3",
@@ -169,7 +175,7 @@ image_ids! {
         mmap_open_press: "voxygen.element.buttons.button_mmap_open_press",
         mmap_plus: "voxygen.element.buttons.min_plus.mmap_button-plus",
         mmap_plus_hover: "voxygen.element.buttons.min_plus.mmap_button-plus_hover",
-        mmap_plus_press: "voxygen.element.buttons.min_plus.mmap_button-plus_hover",
+        mmap_plus_press: "voxygen.element.buttons.min_plus.mmap_button-plus_press",
         mmap_minus: "voxygen.element.buttons.min_plus.mmap_button-min",
         mmap_minus_hover: "voxygen.element.buttons.min_plus.mmap_button-min_hover",
         mmap_minus_press: "voxygen.element.buttons.min_plus.mmap_button-min_press",

voxygen/src/hud/map.rs

@@ -1,9 +1,12 @@
-use super::{img_ids::Imgs, Fonts, Show, TEXT_COLOR};
+use super::{
+    img_ids::{Imgs, ImgsRot},
+    Fonts, Show, TEXT_COLOR,
+};
+use crate::ui::img_ids;
 use client::{self, Client};
 use common::{comp, terrain::TerrainChunkSize, vol::RectVolSize};
 use conrod_core::{
     color,
-    image::Id,
     widget::{self, Button, Image, Rectangle, Text},
     widget_ids, Color, Colorable, Positionable, Sizeable, Widget, WidgetCommon,
 };
@@ -30,12 +33,13 @@ widget_ids! {
 pub struct Map<'a> {
     _show: &'a Show,
     client: &'a Client,
-    world_map: (Id, Vec2<u32>),
+    world_map: &'a (img_ids::Rotations, Vec2<u32>),
     imgs: &'a Imgs,
+    rot_imgs: &'a ImgsRot,
     fonts: &'a Fonts,
     #[conrod(common_builder)]
     common: widget::CommonBuilder,
-    pulse: f32,
+    _pulse: f32,
     velocity: f32,
 }
 impl<'a> Map<'a> {
@@ -43,7 +47,8 @@ impl<'a> Map<'a> {
         show: &'a Show,
         client: &'a Client,
         imgs: &'a Imgs,
-        world_map: (Id, Vec2<u32>),
+        rot_imgs: &'a ImgsRot,
+        world_map: &'a (img_ids::Rotations, Vec2<u32>),
         fonts: &'a Fonts,
         pulse: f32,
         velocity: f32,
@@ -51,11 +56,12 @@ impl<'a> Map<'a> {
         Self {
             _show: show,
             imgs,
+            rot_imgs,
             world_map,
             client,
             fonts,
             common: widget::CommonBuilder::default(),
-            pulse,
+            _pulse: pulse,
             velocity,
         }
     }
@@ -160,9 +166,9 @@ impl<'a> Widget for Map<'a> {
         let (world_map, worldsize) = self.world_map;
         let worldsize = worldsize.map2(TerrainChunkSize::RECT_SIZE, |e, f| e as f64 * f as f64);
 
-        Image::new(world_map)
+        Image::new(world_map.none)
             .middle_of(state.ids.map_bg)
-            .color(Some(Color::Rgba(1.0, 1.0, 1.0, fade - 0.1)))
+            .color(Some(Color::Rgba(1.0, 1.0, 1.0, fade + 0.5)))
             .w_h(700.0, 700.0)
             .parent(state.ids.map_bg)
             .set(state.ids.grid, ui);
@@ -177,28 +183,15 @@ impl<'a> Widget for Map<'a> {
 
         let x = player_pos.x as f64 / worldsize.x * 700.0;
         let y = player_pos.y as f64 / worldsize.y * 700.0;
-        let indic_ani = (self.pulse * 6.0/*animation speed*/).cos()/*starts at 1.0*/ * 0.5 + 0.50; // changes the animation frame
-        let indic_scale = 1.2;
-        // Indicator
-        Image::new(if indic_ani <= 0.3 {
-            self.imgs.indicator_mmap
-        } else if indic_ani <= 0.6 {
-            self.imgs.indicator_mmap_2
-        } else {
-            self.imgs.indicator_mmap_3
-        })
-        .bottom_left_with_margins_on(state.ids.grid, y, x - (20.0 * 1.2) / 2.0)
-        .w_h(
-            22.0 * 1.2,
-            if indic_ani <= 0.3 {
-                16.0 * indic_scale
-            } else if indic_ani <= 0.6 {
-                23.0 * indic_scale
-            } else {
-                34.0 * indic_scale
-            },
+        let indic_scale = 0.6;
+        Image::new(self.rot_imgs.indicator_mmap_small.target_north)
+            .bottom_left_with_margins_on(
+                state.ids.grid,
+                y - 37.0 * indic_scale / 2.0,
+                x - 32.0 * indic_scale / 2.0,
             )
-        .color(Some(Color::Rgba(1.0, 1.0, 1.0, fade + 0.2)))
+            .w_h(32.0 * indic_scale, 37.0 * indic_scale)
+            .color(Some(Color::Rgba(1.0, 1.0, 1.0, 1.0)))
             .floating(true)
             .parent(ui.window)
             .set(state.ids.indicator, ui);

voxygen/src/hud/minimap.rs

@@ -1,9 +1,12 @@
-use super::{img_ids::Imgs, Fonts, Show, HP_COLOR, TEXT_COLOR};
+use super::{
+    img_ids::{Imgs, ImgsRot},
+    Fonts, Show, HP_COLOR, TEXT_COLOR,
+};
+use crate::ui::img_ids;
 use client::{self, Client};
 use common::{comp, terrain::TerrainChunkSize, vol::RectVolSize};
 use conrod_core::{
-    color,
-    image::Id,
+    color, position,
     widget::{self, Button, Image, Rectangle, Text},
     widget_ids, Color, Colorable, Positionable, Sizeable, Widget, WidgetCommon,
 };
@@ -33,12 +36,11 @@ pub struct MiniMap<'a> {
     client: &'a Client,
 
     imgs: &'a Imgs,
-    world_map: (Id, Vec2<u32>),
+    rot_imgs: &'a ImgsRot,
+    world_map: &'a (img_ids::Rotations, Vec2<u32>),
     fonts: &'a Fonts,
     #[conrod(common_builder)]
     common: widget::CommonBuilder,
-    pulse: f32,
-    zoom: f32,
 }
 
 impl<'a> MiniMap<'a> {
@@ -46,20 +48,18 @@ impl<'a> MiniMap<'a> {
         show: &'a Show,
         client: &'a Client,
         imgs: &'a Imgs,
-        world_map: (Id, Vec2<u32>),
+        rot_imgs: &'a ImgsRot,
+        world_map: &'a (img_ids::Rotations, Vec2<u32>),
         fonts: &'a Fonts,
-        pulse: f32,
-        zoom: f32,
     ) -> Self {
         Self {
             show,
             client,
             imgs,
+            rot_imgs,
             world_map,
             fonts,
             common: widget::CommonBuilder::default(),
-            pulse,
-            zoom,
         }
     }
 }
@@ -69,6 +69,7 @@ pub struct State {
 
     last_region_name: Option<String>,
     last_update: Instant,
+    zoom: f64,
 }
 
 pub enum Event {
@@ -86,6 +87,14 @@ impl<'a> Widget for MiniMap<'a> {
 
             last_region_name: None,
             last_update: Instant::now(),
+            zoom: {
+                let min_world_dim = self.world_map.1.reduce_partial_min() as f64;
+                min_world_dim.min(
+                    min_world_dim
+                        * (TerrainChunkSize::RECT_SIZE.reduce_partial_max() as f64 / 32.0)
+                        * (16.0 / 1024.0),
+                )
+            },
         }
     }
 
@@ -93,53 +102,74 @@ impl<'a> Widget for MiniMap<'a> {
 
     fn update(self, args: widget::UpdateArgs<Self>) -> Self::Event {
         let widget::UpdateArgs { state, ui, .. } = args;
-        let zoom = self.zoom as f64;
+        let zoom = state.zoom;
         if self.show.mini_map {
             Image::new(self.imgs.mmap_frame)
-                .w_h(100.0 * 4.0 * zoom, 100.0 * 4.0 * zoom)
+                .w_h(100.0 * 3.0, 100.0 * 3.0)
                 .top_right_with_margins_on(ui.window, 5.0, 5.0)
                 .set(state.ids.mmap_frame, ui);
 
-            Rectangle::fill_with([92.0 * 4.0, 82.0 * 4.0], color::TRANSPARENT)
-                .mid_top_with_margin_on(state.ids.mmap_frame, 13.0 * 4.0 + 4.0 * zoom)
+            Rectangle::fill_with([92.0 * 3.0, 82.0 * 3.0], color::TRANSPARENT)
+                .mid_top_with_margin_on(state.ids.mmap_frame, 13.0 * 3.0 + 3.0)
                 .set(state.ids.mmap_frame_bg, ui);
-            // Zoom Buttons
-            // TODO: Add zoomable minimap
 
-            /*if Button::image(self.imgs.mmap_plus)
-                .w_h(100.0 * 0.2 * zoom, 100.0 * 0.2 * zoom)
-                .hover_image(self.imgs.mmap_plus_hover)
-                .press_image(self.imgs.mmap_plus_press)
-                .top_left_with_margins_on(state.ids.mmap_frame, 0.0, 0.0)
-                .set(state.ids.mmap_plus, ui)
-                .was_clicked()
-            {
-                if zoom > 0.0 {
-                    zoom = zoom + 1.0
-                } else if zoom == 5.0 {
-                }
-            }
-            if Button::image(self.imgs.mmap_minus)
-                .w_h(100.0 * 0.2 * zoom, 100.0 * 0.2 * zoom)
-                .hover_image(self.imgs.mmap_minus_hover)
-                .press_image(self.imgs.mmap_minus_press)
-                .down_from(state.ids.mmap_plus, 0.0)
-                .set(state.ids.mmap_minus, ui)
-                .was_clicked()
-            {
-                if zoom < 6.0 {
-                    zoom = zoom - 1.0
-                } else if zoom == 0.0 {
-                }
-            }*/
-            // Map Image
+            // Map size
             let (world_map, worldsize) = self.world_map;
             let worldsize = worldsize.map2(TerrainChunkSize::RECT_SIZE, |e, f| e as f64 * f as f64);
-            Image::new(world_map)
-                .middle_of(state.ids.mmap_frame_bg)
-                .w_h(92.0 * 4.0 * zoom, 82.0 * 4.0 * zoom)
-                .parent(state.ids.mmap_frame_bg)
-                .set(state.ids.grid, ui);
+
+            // Zoom Buttons
+
+            // Pressing + multiplies, and - divides, zoom by ZOOM_FACTOR.
+            const ZOOM_FACTOR: f64 = 2.0;
+
+            // TODO: Either prevent zooming all the way in, *or* see if we can interpolate
+            // somehow if you zoom in too far.  Or both.
+            let min_zoom = 1.0;
+            let max_zoom = (worldsize / TerrainChunkSize::RECT_SIZE.map(|e| e as f64))
+                .reduce_partial_min()/*.min(f64::MAX)*/;
+
+            // NOTE: Not sure if a button can be clicked while disabled, but we still double
+            // check for both kinds of zoom to make sure that not only was the
+            // button clicked, it is also okay to perform the zoom action.
+            // Note that since `Button::image` has side effects, we must perform
+            // the `can_zoom_in` and `can_zoom_out` checks after the `&&` to avoid
+            // undesired early termination.
+            let can_zoom_in = zoom < max_zoom;
+            let can_zoom_out = zoom > min_zoom;
+
+            if Button::image(self.imgs.mmap_minus)
+                .w_h(100.0 * 0.30, 100.0 * 0.30)
+                .hover_image(self.imgs.mmap_minus_hover)
+                .press_image(self.imgs.mmap_minus_press)
+                .top_left_with_margins_on(state.ids.mmap_frame, 0.0, 0.0)
+                .enabled(can_zoom_out)
+                .set(state.ids.mmap_minus, ui)
+                .was_clicked()
+                && can_zoom_out
+            {
+                // Set the image dimensions here, rather than recomputing each time.
+                let zoom = min_zoom.max(zoom / ZOOM_FACTOR);
+                state.update(|s| s.zoom = zoom);
+                // set_image_dims(zoom);
+            }
+            if Button::image(self.imgs.mmap_plus)
+                .w_h(100.0 * 0.30, 100.0 * 0.30)
+                .hover_image(self.imgs.mmap_plus_hover)
+                .press_image(self.imgs.mmap_plus_press)
+                .right_from(state.ids.mmap_minus, 6.0)
+                .enabled(can_zoom_in)
+                .set(state.ids.mmap_plus, ui)
+                .was_clicked()
+                && can_zoom_in
+            {
+                let zoom = max_zoom.min(zoom * ZOOM_FACTOR);
+                state.update(|s| s.zoom = zoom);
+                // set_image_dims(zoom);
+            }
+
+            // Reload zoom in case it changed.
+            let zoom = state.zoom;
+
             // Coordinates
             let player_pos = self
                 .client
@@ -149,26 +179,32 @@ impl<'a> Widget for MiniMap<'a> {
                 .get(self.client.entity())
                 .map_or(Vec3::zero(), |pos| pos.0);
 
-            let x = player_pos.x as f64 / worldsize.x * 92.0 * 4.0;
-            let y = player_pos.y as f64 / worldsize.y * 82.0 * 4.0;
-            let indic_ani = (self.pulse * 6.0).cos() * 0.5 + 0.5; //Animation timer
-            let indic_scale = 0.8;
+            // Get map image source rectangle dimensons.
+            let w_src = worldsize.x / TerrainChunkSize::RECT_SIZE.x as f64 / zoom;
+            let h_src = worldsize.y / TerrainChunkSize::RECT_SIZE.y as f64 / zoom;
+
+            // Set map image to be centered around player coordinates.
+            let rect_src = position::Rect::from_xy_dim(
+                [
+                    player_pos.x as f64 / TerrainChunkSize::RECT_SIZE.x as f64,
+                    (worldsize.y - player_pos.y as f64) / TerrainChunkSize::RECT_SIZE.y as f64,
+                ],
+                [w_src, h_src],
+            );
+
+            // Map Image
+            Image::new(world_map.source_north)
+                .middle_of(state.ids.mmap_frame_bg)
+                .w_h(92.0 * 3.0, 82.0 * 3.0)
+                .parent(state.ids.mmap_frame_bg)
+                .source_rectangle(rect_src)
+                .set(state.ids.grid, ui);
+
             // Indicator
-            Image::new(if indic_ani <= 0.5 {
-                self.imgs.indicator_mmap
-            } else {
-                self.imgs.indicator_mmap_2
-            })
-            .bottom_left_with_margins_on(state.ids.grid, y, x - 5.0)
-            .w_h(
-                // Animation frames depening on timer value from 0.0 to 1.0
-                22.0 * 0.8,
-                if indic_ani <= 0.5 {
-                    18.0 * indic_scale
-                } else {
-                    23.0 * indic_scale
-                },
-            )
+            let ind_scale = 0.4;
+            Image::new(self.rot_imgs.indicator_mmap_small.none)
+                .middle_of(state.ids.grid)
+                .w_h(32.0 * ind_scale, 37.0 * ind_scale)
                 .color(Some(Color::Rgba(1.0, 1.0, 1.0, 1.0)))
                 .floating(true)
                 .parent(ui.window)
@@ -186,9 +222,9 @@ impl<'a> Widget for MiniMap<'a> {
             self.imgs.mmap_closed
         })
         .wh(if self.show.mini_map {
-            [100.0 * 0.4; 2]
+            [100.0 * 0.3; 2]
         } else {
-            [100.0 * 0.2 * zoom; 2]
+            [100.0 * 0.2; 2]
         })
         .hover_image(if self.show.mini_map {
             self.imgs.mmap_open_hover
@@ -267,7 +303,7 @@ impl<'a> Widget for MiniMap<'a> {
                     state.ids.mmap_frame,
                     if self.show.mini_map { 6.0 } else { 0.0 },
                 )
-                .font_size(if self.show.mini_map { 30 } else { 18 })
+                .font_size(if self.show.mini_map { 20 } else { 18 })
                 .font_id(self.fonts.cyri)
                 .color(TEXT_COLOR)
                 .set(state.ids.mmap_location, ui),

voxygen/src/hud/mod.rs

@@ -13,7 +13,7 @@ mod skillbar;
 mod social;
 mod spell;
 
-use crate::{ecs::comp::HpFloaterList, hud::img_ids::ImgsRot};
+use crate::{ecs::comp::HpFloaterList, hud::img_ids::ImgsRot, ui::img_ids::Rotations};
 pub use settings_window::ScaleChange;
 use std::time::Duration;
 
@@ -46,7 +46,6 @@ use crate::{
 use client::{Client, Event as ClientEvent};
 use common::{assets::load_expect, comp, terrain::TerrainChunk, vol::RectRasterableVol};
 use conrod_core::{
-    image::Id,
     text::cursor::Index,
     widget::{self, Button, Image, Rectangle, Text},
     widget_ids, Color, Colorable, Labelable, Positionable, Sizeable, Widget,
@@ -307,7 +306,7 @@ impl Show {
     fn map(&mut self, open: bool) {
         self.map = open;
         self.bag = false;
-        self.want_grab = !open;
+        self.want_grab = true;
     }
 
     fn character_window(&mut self, open: bool) {
@@ -431,7 +430,7 @@ impl Show {
 pub struct Hud {
     ui: Ui,
     ids: Ids,
-    world_map: (Id, Vec2<u32>),
+    world_map: (/* Id */ Rotations, Vec2<u32>),
     imgs: Imgs,
     item_imgs: ItemImgs,
     fonts: Fonts,
@@ -446,7 +445,6 @@ pub struct Hud {
     force_chat_input: Option<String>,
     force_chat_cursor: Option<Index>,
     pulse: f32,
-    zoom: f32,
     velocity: f32,
 }
 
@@ -461,7 +459,7 @@ impl Hud {
         let ids = Ids::new(ui.id_generator());
         // Load world map
         let world_map = (
-            ui.add_graphic(Graphic::Image(client.world_map.0.clone())),
+            ui.add_graphic_with_rotations(Graphic::Image(client.world_map.0.clone())),
             client.world_map.1,
         );
         // Load images.
@@ -497,7 +495,7 @@ impl Hud {
                 quest: false,
                 spell: false,
                 character_window: false,
-                mini_map: false,
+                mini_map: true,
                 settings_tab: SettingsTab::Interface,
                 social_tab: SocialTab::Online,
                 want_grab: true,
@@ -509,7 +507,6 @@ impl Hud {
             force_chat_input: None,
             force_chat_cursor: None,
             pulse: 0.0,
-            zoom: 1.0,
             velocity: 0.0,
         }
     }
@@ -1590,10 +1587,9 @@ impl Hud {
             &self.show,
             client,
             &self.imgs,
-            self.world_map,
+            &self.rot_imgs,
+            &self.world_map,
             &self.fonts,
-            self.pulse,
-            self.zoom,
         )
         .set(self.ids.minimap, ui_widgets)
         {
@@ -1864,7 +1860,8 @@ impl Hud {
                 &self.show,
                 client,
                 &self.imgs,
-                self.world_map,
+                &self.rot_imgs,
+                &self.world_map,
                 &self.fonts,
                 self.pulse,
                 self.velocity,

voxygen/src/render/pipelines/ui.rs

@@ -10,6 +10,7 @@ gfx_defines! {
         pos: [f32; 2] = "v_pos",
         uv: [f32; 2] = "v_uv",
         color: [f32; 4] = "v_color",
+        center: [f32; 2] = "v_center",
         mode: u32 = "v_mode",
     }
 
@@ -55,11 +56,23 @@ pub const MODE_TEXT: u32 = 0;
 pub const MODE_IMAGE: u32 = 1;
 /// Ignore `tex` and draw simple, colored 2D geometry.
 pub const MODE_GEOMETRY: u32 = 2;
+/// Draw an image from the texture at `tex` in the fragment shader, with the
+/// source rectangle rotated to face north.
+///
+/// FIXME: Make more principled.
+pub const MODE_IMAGE_SOURCE_NORTH: u32 = 3;
+/// Draw an image from the texture at `tex` in the fragment shader, with the
+/// target rectangle rotated to face north.
+///
+/// FIXME: Make more principled.
+pub const MODE_IMAGE_TARGET_NORTH: u32 = 5;
 
 pub enum Mode {
     Text,
     Image,
     Geometry,
+    ImageSourceNorth,
+    ImageTargetNorth,
 }
 
 impl Mode {
@@ -68,6 +81,8 @@ impl Mode {
             Mode::Text => MODE_TEXT,
             Mode::Image => MODE_IMAGE,
             Mode::Geometry => MODE_GEOMETRY,
+            Mode::ImageSourceNorth => MODE_IMAGE_SOURCE_NORTH,
+            Mode::ImageTargetNorth => MODE_IMAGE_TARGET_NORTH,
         }
     }
 }
@@ -78,10 +93,16 @@ pub fn create_quad(
     color: Rgba<f32>,
     mode: Mode,
 ) -> Quad<UiPipeline> {
+    let center = if let Mode::ImageSourceNorth = mode {
+        uv_rect.center().into_array()
+    } else {
+        rect.center().into_array()
+    };
     let mode_val = mode.value();
     let v = |pos, uv| Vertex {
         pos,
         uv,
+        center,
         color: color.into_array(),
         mode: mode_val,
     };
@@ -118,10 +139,12 @@ pub fn create_tri(
     color: Rgba<f32>,
     mode: Mode,
 ) -> Tri<UiPipeline> {
+    let center = [0.0, 0.0];
     let mode_val = mode.value();
     let v = |pos, uv| Vertex {
         pos,
         uv,
+        center,
         color: color.into_array(),
         mode: mode_val,
     };

voxygen/src/scene/camera.rs

@@ -190,7 +190,7 @@ impl Camera {
     }
 
     /// Get the focus position of the camera.
-    pub fn get_focus_pos(&self) -> Vec3<f32> { self.tgt_focus }
+    pub fn get_focus_pos(&self) -> Vec3<f32> { self.focus }
 
     /// Set the focus position of the camera.
     pub fn set_focus_pos(&mut self, focus: Vec3<f32>) { self.tgt_focus = focus; }

voxygen/src/ui/graphic/mod.rs

@@ -6,7 +6,7 @@ pub use renderer::{SampleStrat, Transform};
 use crate::render::{Renderer, Texture};
 use dot_vox::DotVoxData;
 use guillotiere::{size2, SimpleAtlasAllocator};
-use hashbrown::HashMap;
+use hashbrown::{hash_map::Entry, HashMap};
 use image::{DynamicImage, RgbaImage};
 use log::warn;
 use pixel_art::resize_pixel_art;
@@ -26,6 +26,14 @@ pub enum Rotation {
     Cw90,
     Cw180,
     Cw270,
+    /// Orientation of source rectangle that always faces true north.
+    /// Simple hack to get around Conrod not having space for proper
+    /// rotation data (though it should be possible to add in other ways).
+    SourceNorth,
+    /// Orientation of target rectangle that always faces true north.
+    /// Simple hack to get around Conrod not having space for proper
+    /// rotation data (though it should be possible to add in other ways).
+    TargetNorth,
 }
 
 /// Images larger than this are stored in individual textures
@@ -41,7 +49,7 @@ pub struct Id(u32);
 #[derive(PartialEq, Eq, Hash, Copy, Clone)]
 pub struct TexId(usize);
 
-type Parameters = (Id, Vec2<u16>, Aabr<u64>);
+type Parameters = (Id, Vec2<u16>);
 type GraphicMap = HashMap<Id, Graphic>;
 
 enum CacheLoc {
@@ -130,6 +138,8 @@ impl GraphicCache {
         self.textures = vec![texture];
     }
 
+    /// Source rectangle should be from 0 to 1, and represents a bounding box
+    /// for the source image of the graphic.
     pub fn cache_res(
         &mut self,
         renderer: &mut Renderer,
@@ -137,15 +147,18 @@ impl GraphicCache {
         dims: Vec2<u16>,
         source: Aabr<f64>,
         rotation: Rotation,
-    ) -> Option<(Aabr<u16>, TexId)> {
+    ) -> Option<(Aabr<f64>, TexId)> {
         let dims = match rotation {
             Rotation::Cw90 | Rotation::Cw270 => Vec2::new(dims.y, dims.x),
             Rotation::None | Rotation::Cw180 => dims,
+            Rotation::SourceNorth => dims,
+            Rotation::TargetNorth => dims,
         };
-        let key = (graphic_id, dims, source.map(|e| e.to_bits())); // TODO: Replace this with rounded representation of source
+        let key = (graphic_id, dims);
 
+        // Rotate aabr according to requested rotation.
         let rotated_aabr = |Aabr { min, max }| match rotation {
-            Rotation::None => Aabr { min, max },
+            Rotation::None | Rotation::SourceNorth | Rotation::TargetNorth => Aabr { min, max },
             Rotation::Cw90 => Aabr {
                 min: Vec2::new(min.x, max.y),
                 max: Vec2::new(max.x, min.y),
@@ -156,8 +169,21 @@ impl GraphicCache {
                 max: Vec2::new(min.x, max.y),
             },
         };
+        // Scale aabr according to provided source rectangle.
+        let scaled_aabr = |aabr: Aabr<_>| {
+            let size: Vec2<_> = aabr.size().into();
+            Aabr {
+                min: size.mul_add(source.min, aabr.min),
+                max: size.mul_add(source.max, aabr.min),
+            }
+        };
+        // Apply all transformations.
+        // TODO: Verify rotation is being applied correctly.
+        let transformed_aabr = |aabr| rotated_aabr(scaled_aabr(aabr));
 
-        if let Some(details) = self.cache_map.get(&key) {
+        let details = match self.cache_map.entry(key) {
+            Entry::Occupied(details) => {
+                let details = details.get();
                 let (idx, aabr) = match details.location {
                     CacheLoc::Atlas {
                         atlas_idx, aabr, ..
@@ -180,8 +206,11 @@ impl GraphicCache {
                     upload_image(renderer, aabr, &self.textures[idx], &image);
                 }
 
-            Some((rotated_aabr(aabr), TexId(idx)))
-        } else {
+                return Some((transformed_aabr(aabr.map(|e| e as f64)), TexId(idx)));
+            },
+            Entry::Vacant(details) => details,
+        };
+
         // Create image
         let image = draw_graphic(&self.graphic_map, graphic_id, dims)?;
 
@@ -196,8 +225,7 @@ impl GraphicCache {
             // Fit into an atlas
             let mut loc = None;
             for (atlas_idx, (ref mut atlas, _)) in self.atlases.iter_mut().enumerate() {
-                    if let Some(rectangle) =
-                        atlas.allocate(size2(i32::from(dims.x), i32::from(dims.y)))
+                if let Some(rectangle) = atlas.allocate(size2(i32::from(dims.x), i32::from(dims.y)))
                 {
                     let aabr = aabr_from_alloc_rect(rectangle);
                     loc = Some(CacheLoc::Atlas { atlas_idx, aabr });
@@ -244,13 +272,12 @@ impl GraphicCache {
         // Upload
         upload_image(renderer, aabr, &self.textures[idx], &image);
         // Insert into cached map
-            self.cache_map.insert(key, CachedDetails {
+        details.insert(CachedDetails {
             location,
             valid: true,
         });
 
-            Some((rotated_aabr(aabr), TexId(idx)))
-        }
+        Some((transformed_aabr(aabr.map(|e| e as f64)), TexId(idx)))
     }
 }
 

voxygen/src/ui/img_ids.rs

@@ -106,6 +106,8 @@ pub struct Rotations {
     pub cw90: conrod_core::image::Id,
     pub cw180: conrod_core::image::Id,
     pub cw270: conrod_core::image::Id,
+    pub source_north: conrod_core::image::Id,
+    pub target_north: conrod_core::image::Id,
 }
 
 /// This macro will automatically load all specified assets, get the

voxygen/src/ui/mod.rs

@@ -28,6 +28,7 @@ use crate::{
     window::Window,
     Error,
 };
+use ::image::GenericImageView;
 use cache::Cache;
 use common::{assets, util::srgba_to_linear};
 use conrod_core::{
@@ -43,6 +44,7 @@ use conrod_core::{
 use graphic::{Rotation, TexId};
 use log::{error, warn};
 use std::{
+    f32, f64,
     fs::File,
     io::{BufReader, Read},
     ops::Range,
@@ -172,6 +174,16 @@ impl Ui {
             cw90: self.image_map.insert((graphic_id, Rotation::Cw90)),
             cw180: self.image_map.insert((graphic_id, Rotation::Cw180)),
             cw270: self.image_map.insert((graphic_id, Rotation::Cw270)),
+            // Hacky way to make sure a source rectangle always faces north regardless of player
+            // orientation.
+            // This is an easy way to get around Conrod's lack of rotation data for images (for this
+            // specific use case).
+            source_north: self.image_map.insert((graphic_id, Rotation::SourceNorth)),
+            // Hacky way to make sure a target rectangle always faces north regardless of player
+            // orientation.
+            // This is an easy way to get around Conrod's lack of rotation data for images (for this
+            // specific use case).
+            target_north: self.image_map.insert((graphic_id, Rotation::TargetNorth)),
         }
     }
 
@@ -420,46 +432,88 @@ impl Ui {
                 PrimitiveKind::Image {
                     image_id,
                     color,
-                    source_rect: _, // TODO: <-- use this
+                    source_rect,
                 } => {
                     let (graphic_id, rotation) = self
                         .image_map
                         .get(&image_id)
                         .expect("Image does not exist in image map");
                     let graphic_cache = self.cache.graphic_cache_mut();
-
+                    let gl_aabr = gl_aabr(rect);
+                    let (source_aabr, gl_size) = {
+                        // Transform the source rectangle into uv coordinate.
+                        // TODO: Make sure this is right.  Especially the conversions.
+                        let ((uv_l, uv_r, uv_b, uv_t), gl_size) =
                             match graphic_cache.get_graphic(*graphic_id) {
                                 Some(Graphic::Blank) | None => continue,
-                        _ => {},
+                                Some(Graphic::Image(image)) => {
+                                    source_rect.and_then(|src_rect| {
+                                        let (image_w, image_h) = image.dimensions();
+                                        let (source_w, source_h) = src_rect.w_h();
+                                        let gl_size = gl_aabr.size();
+                                        if image_w == 0
+                                            || image_h == 0
+                                            || source_w < 1.0
+                                            || source_h < 1.0
+                                            || gl_size.reduce_partial_max() < f32::EPSILON
+                                        {
+                                            None
+                                        } else {
+                                            // Multiply drawn image size by ratio of original image
+                                            // size to
+                                            // source rectangle size (since as the proportion of the
+                                            // image gets
+                                            // smaller, the drawn size should get bigger), up to the
+                                            // actual
+                                            // size of the original image.
+                                            let ratio_x = (image_w as f64 / source_w).min(
+                                                (image_w as f64 / (gl_size.w * half_res.x) as f64)
+                                                    .max(1.0),
+                                            );
+                                            let ratio_y = (image_h as f64 / source_h).min(
+                                                (image_h as f64 / (gl_size.h * half_res.y) as f64)
+                                                    .max(1.0),
+                                            );
+                                            let (l, r, b, t) = src_rect.l_r_b_t();
+                                            Some((
+                                                (
+                                                    l / image_w as f64, /* * ratio_x*/
+                                                    r / image_w as f64, /* * ratio_x*/
+                                                    b / image_h as f64, /* * ratio_y*/
+                                                    t / image_h as f64, /* * ratio_y*/
+                                                ),
+                                                Extent2::new(
+                                                    (gl_size.w as f64 * ratio_x) as f32,
+                                                    (gl_size.h as f64 * ratio_y) as f32,
+                                                ),
+                                            ))
+                                            /* ((l / image_w as f64),
+                                            (r / image_w as f64),
+                                            (b / image_h as f64),
+                                            (t / image_h as f64)) */
                                         }
+                                    })
+                                },
+                                // No easy way to interpret source_rect for voxels...
+                                Some(Graphic::Voxel(..)) => None,
+                            }
+                            .unwrap_or_else(|| ((0.0, 1.0, 0.0, 1.0), gl_aabr.size()));
+                        (
+                            Aabr {
+                                min: Vec2::new(uv_l, uv_b),
+                                max: Vec2::new(uv_r, uv_t),
+                            },
+                            gl_size,
+                        )
+                    };
 
                     let color =
                         srgba_to_linear(color.unwrap_or(conrod_core::color::WHITE).to_fsa().into());
 
-                    let gl_aabr = gl_aabr(rect);
                     let resolution = Vec2::new(
-                        (gl_aabr.size().w * half_res.x).round() as u16,
-                        (gl_aabr.size().h * half_res.y).round() as u16,
+                        (gl_size.w * half_res.x).round() as u16,
+                        (gl_size.h * half_res.y).round() as u16,
                     );
-                    // Transform the source rectangle into uv coordinate.
-                    // TODO: Make sure this is right.
-                    let source_aabr = {
-                        let (uv_l, uv_r, uv_b, uv_t) = (0.0, 1.0, 0.0, 1.0);
-                        /*match source_rect {
-                            Some(src_rect) => {
-                                let (l, r, b, t) = src_rect.l_r_b_t();
-                                ((l / image_w) as f32,
-                                (r / image_w) as f32,
-                                (b / image_h) as f32,
-                                (t / image_h) as f32)
-                            }
-                            None => (0.0, 1.0, 0.0, 1.0),
-                        };*/
-                        Aabr {
-                            min: Vec2::new(uv_l, uv_b),
-                            max: Vec2::new(uv_r, uv_t),
-                        }
-                    };
 
                     // Cache graphic at particular resolution.
                     let (uv_aabr, tex_id) = match graphic_cache.cache_res(
@@ -500,7 +554,13 @@ impl Ui {
                         State::Image(_) => {},
                     }
 
-                    mesh.push_quad(create_ui_quad(gl_aabr, uv_aabr, color, UiMode::Image));
+                    mesh.push_quad(create_ui_quad(gl_aabr, uv_aabr, color, match *rotation {
+                        Rotation::None | Rotation::Cw90 | Rotation::Cw180 | Rotation::Cw270 => {
+                            UiMode::Image
+                        },
+                        Rotation::SourceNorth => UiMode::ImageSourceNorth,
+                        Rotation::TargetNorth => UiMode::ImageTargetNorth,
+                    }));
                 },
                 PrimitiveKind::Text {
                     color,

world/src/sim/map.rs

@@ -239,6 +239,9 @@ impl MapConfig {
                     }
                 }
 
+                let water_color_factor = 2.0;
+                let g_water = 32.0 * water_color_factor;
+                let b_water = 64.0 * water_color_factor;
                 let rgba = match (river_kind, (is_water, true_alt >= true_sea_level)) {
                     (_, (false, _)) | (None, (_, true)) => {
                         let (r, g, b) = (
@@ -251,7 +254,7 @@ impl MapConfig {
                                     0.0
                                 })
                             .sqrt(),
-                            if is_shaded { 0.2 + (alt * 0.8) } else { alt },
+                            if is_shaded { 0.4 + (alt * 0.6) } else { alt },
                             (if is_shaded { alt } else { alt }
                                 * if is_humidity {
                                     humidity as f64
@@ -272,17 +275,22 @@ impl MapConfig {
                     },
                     (Some(RiverKind::Ocean), _) => (
                         0,
-                        ((32.0 - water_depth * 32.0) * 1.0) as u8,
-                        ((64.0 - water_depth * 64.0) * 1.0) as u8,
+                        ((g_water - water_depth * g_water) * 1.0) as u8,
+                        ((b_water - water_depth * b_water) * 1.0) as u8,
+                        255,
+                    ),
+                    (Some(RiverKind::River { .. }), _) => (
+                        0,
+                        g_water as u8 + (alt * (127.0 - g_water)) as u8,
+                        b_water as u8 + (alt * (255.0 - b_water)) as u8,
                         255,
                     ),
-                    (Some(RiverKind::River { .. }), _) => {
-                        (0, 32 + (alt * 95.0) as u8, 64 + (alt * 191.0) as u8, 255)
-                    },
                     (None, _) | (Some(RiverKind::Lake { .. }), _) => (
                         0,
-                        (((32.0 + water_alt * 95.0) + (-water_depth * 32.0)) * 1.0) as u8,
-                        (((64.0 + water_alt * 191.0) + (-water_depth * 64.0)) * 1.0) as u8,
+                        (((g_water + water_alt * (127.0 - 32.0)) + (-water_depth * g_water)) * 1.0)
+                            as u8,
+                        (((b_water + water_alt * (255.0 - b_water)) + (-water_depth * b_water))
+                            * 1.0) as u8,
                         255,
                     ),
                 };

world/src/sim/mod.rs

@@ -292,6 +292,9 @@ impl WorldFile {
 
 pub struct WorldSim {
     pub seed: u32,
+    /// Maximum height above sea level of any chunk in the map (not including
+    /// post-erosion warping, cliffs, and other things like that).
+    pub max_height: f32,
     pub(crate) chunks: Vec<SimChunk>,
     pub(crate) locations: Vec<Location>,
 
@@ -1288,6 +1291,7 @@ impl WorldSim {
 
         let mut this = Self {
             seed,
+            max_height: maxh as f32,
             chunks,
             locations: Vec::new(),
             gen_ctx,
@@ -1306,7 +1310,11 @@ impl WorldSim {
     pub fn get_map(&self) -> Vec<u32> {
         let mut v = vec![0u32; WORLD_SIZE.x * WORLD_SIZE.y];
         // TODO: Parallelize again.
-        MapConfig::default().generate(&self, |pos, (r, g, b, a)| {
+        MapConfig {
+            gain: self.max_height,
+            ..MapConfig::default()
+        }
+        .generate(&self, |pos, (r, g, b, a)| {
             v[pos.y * WORLD_SIZE.x + pos.x] = u32::from_le_bytes([r, g, b, a]);
         });
         v