Improved radar ui

Cargo.lock

@@ -657,6 +657,7 @@ version = "0.0.0"
 dependencies = [
  "cgmath",
  "galactica-content",
+ "galactica-gameobject",
  "galactica-render",
  "galactica-world",
 ]

TODO.md

@@ -4,7 +4,6 @@
  - Sound system
  - Particles, impact effects
  - Debris on ship death
- - Radar: ship size, planets and suns
 
 ----------------------------------
 
@@ -13,6 +12,7 @@
  - How to keep player in system bounds, what to do if they fly far away
    - Max chase distance, physics-enforced area?
    - (Soft limits, you shouldn't go too far unless you decide to.)
+   - Enforce: silently teleport to the other end
  - How to handle death -- save scum should not be the norm (hollow knight?)
  - Jumping between systems -- how?
  - Locks and keys -> variation?

assets

@@ -1 +1 @@
-Subproject commit 62fd7fc297a2631691b588b898694e220d58cf78
+Subproject commit b53acd48a98987914ceb196af18ba679a222fa10

content/factions.toml

@@ -1,9 +1,11 @@
 [faction."player"]
 display_name = "Player"
+relationship.player = "neutral"
 relationship.enemy = "hostile"
 color = [0.0, 1.0, 0.0]
 
 [faction."enemy"]
 display_name = "Enemy"
+relationship.enemy = "neutral"
 relationship.player = "hostile"
 color = [1.0, 0.0, 0.0]

content/textures.toml

@@ -22,8 +22,14 @@ path = "ship/gypsum.png"
 [texture."ui::radar"]
 path = "ui/radar.png"
 
-[texture."ui::blip"]
-path = "ui/blip.png"
+[texture."ui::shipblip"]
+path = "ui/ship-blip.png"
+
+[texture."ui::planetblip"]
+path = "ui/planet-blip.png"
 
 [texture."ui::radarframe"]
 path = "ui/radarframe.png"
+
+[texture."ui::centerarrow"]
+path = "ui/center-arrow.png"

crates/content/src/part/faction.rs

@@ -1,4 +1,4 @@
-use anyhow::Result;
+use anyhow::{bail, Result};
 use serde::Deserialize;
 use std::collections::HashMap;
 
@@ -99,6 +99,19 @@ impl crate::Build for Faction {
 				}
 			}
 
+			if faction.color[0] > 1.0
+				|| faction.color[0] < 0.0
+				|| faction.color[1] > 1.0
+				|| faction.color[1] < 0.0
+				|| faction.color[2] > 1.0
+				|| faction.color[2] < 0.0
+			{
+				bail!(
+					"Invalid color for faction `{}`. Value out of range.",
+					faction_name
+				);
+			}
+
 			ct.factions.push(Self {
 				name: faction_name.to_owned(),
 				handle: h,

crates/gameobject/src/system.rs

@@ -4,7 +4,7 @@ use galactica_render::ObjectSprite;
 
 pub struct System {
 	pub name: String,
-	bodies: Vec<SystemObject>,
+	pub bodies: Vec<SystemObject>,
 }
 
 impl System {

crates/ui/Cargo.toml

@@ -7,4 +7,5 @@ edition = "2021"
 galactica-content = { path = "../content" }
 galactica-world = { path = "../world" }
 galactica-render = { path = "../render" }
+galactica-gameobject = { path = "../gameobject" }
 cgmath = "0.18.0"

crates/ui/src/radar.rs

@@ -1,5 +1,6 @@
 use cgmath::{Deg, InnerSpace, Point2, Vector2};
 use galactica_content as content;
+use galactica_gameobject as object;
 use galactica_render::{AnchoredUiPosition, UiSprite};
 use galactica_world::{util, ShipPhysicsHandle, World};
 
@@ -8,13 +9,24 @@ pub fn build_radar(
 	ct: &content::Content,
 	player: &ShipPhysicsHandle,
 	physics: &World,
+	system: &object::System,
 	camera_zoom: f32,
 	camera_aspect: f32,
 ) -> Vec<UiSprite> {
 	let mut out = Vec::new();
 
-	let radar_range = 2000.0;
+	let radar_range = 4000.0;
 	let radar_size = 300.0;
+	let hide_range = 0.85;
+	let shrink_distance = 20.0;
+	let system_object_scale = 1.0 / 600.0;
+	let ship_scale = 1.0 / 10.0;
+
+	let (_, player_body) = physics.get_ship_body(player).unwrap();
+	let player_position = util::rigidbody_position(player_body);
+	let planet_texture = ct.get_texture_handle("ui::planetblip");
+	let ship_texture = ct.get_texture_handle("ui::shipblip");
+	let arrow_texture = ct.get_texture_handle("ui::centerarrow");
 
 	out.push(UiSprite {
 		texture: ct.get_texture_handle("ui::radar"),
@@ -27,14 +39,84 @@ pub fn build_radar(
 		color: None,
 	});
 
+	// Draw system objects
+	for o in &system.bodies {
+		let size = (o.size / o.pos.z) / (radar_range * system_object_scale);
+		let p = Point2 {
+			x: o.pos.x,
+			y: o.pos.y,
+		};
+		let d = (p - player_position) / radar_range;
+		// Add half the blip sprite's height to distance
+		let m = d.magnitude() + (size / (2.0 * radar_size));
+		if m < hide_range {
+			// Shrink blips as they get closeto the edge
+			let size = size.min((hide_range - m) * size * shrink_distance);
+			if size <= 2.0 {
+				// Don't draw super tiny sprites, they flicker
+				continue;
+			}
+			out.push(UiSprite {
+				texture: planet_texture,
+				pos: AnchoredUiPosition::NwC(
+					Point2 {
+						x: radar_size / 2.0 + 10.0,
+						y: radar_size / -2.0 - 10.0,
+					} + (d * (radar_size / 2.0)),
+				),
+				dimensions: Point2 {
+					x: planet_texture.aspect,
+					y: 1.0,
+				} * size,
+				angle: o.angle,
+				color: Some([0.5, 0.5, 0.5, 1.0]),
+			});
+		}
+	}
+
+	// Draw ships
+	for (s, r) in physics.iter_ship_body() {
+		let ship = ct.get_ship(s.ship.handle);
+		let size = (ship.size * ship.sprite_texture.aspect) * ship_scale;
+		let p = util::rigidbody_position(r);
+		let d = (p - player_position) / radar_range;
+		let m = d.magnitude() + (size / (2.0 * radar_size));
+		if m < hide_range {
+			let size = size.min((hide_range - m) * size * shrink_distance);
+			if size < 2.0 {
+				continue;
+			}
+			let angle: Deg<f32> = util::rigidbody_rotation(r)
+				.angle(Vector2 { x: 0.0, y: 1.0 })
+				.into();
+			let f = ct.get_faction(s.ship.faction).color;
+			let f = [f[0], f[1], f[2], 1.0];
+			out.push(UiSprite {
+				texture: ship_texture,
+				pos: AnchoredUiPosition::NwC(
+					Point2 {
+						x: radar_size / 2.0 + 10.0,
+						y: radar_size / -2.0 - 10.0,
+					} + (d * (radar_size / 2.0)),
+				),
+				dimensions: Point2 {
+					x: ship_texture.aspect,
+					y: 1.0,
+				} * size,
+				angle: -angle,
+				color: Some(f),
+			});
+		}
+	}
+
 	// Draw viewport frame
 	let d = Vector2 {
 		x: (camera_zoom / 2.0) * camera_aspect,
 		y: camera_zoom / 2.0,
-	};
-	let m = d.magnitude() / radar_range;
-	let d = d / radar_range * (radar_size / 2.0);
-	let color = Some([0.5, 0.5, 0.5, 1.0]);
+	} / radar_range;
+	let m = d.magnitude();
+	let d = d * (radar_size / 2.0);
+	let color = Some([0.3, 0.3, 0.3, 1.0]);
 	if m < 0.8 {
 		let texture = ct.get_texture_handle("ui::radarframe");
 		let dimensions = Point2 {
@@ -86,36 +168,26 @@ pub fn build_radar(
 		});
 	}
 
-	let (_, pr) = physics.get_ship_body(player).unwrap();
-	let pr = util::rigidbody_position(pr);
-	let texture = ct.get_texture_handle("ui::blip");
-	for (s, r) in physics.iter_ship_body() {
-		let p = util::rigidbody_position(r);
-		let d = p - pr;
-		let m = d.magnitude() / radar_range;
-		if m < 0.8 {
-			let angle: Deg<f32> = util::rigidbody_rotation(r)
-				.angle(Vector2 { x: 0.0, y: 1.0 })
-				.into();
-			let f = ct.get_faction(s.ship.faction).color;
-			let f = [f[0], f[1], f[2], 1.0];
-
-			out.push(UiSprite {
-				texture,
-				pos: AnchoredUiPosition::NwC(
-					Point2 {
-						x: radar_size / 2.0 + 10.0,
-						y: radar_size / -2.0 - 10.0,
-					} + (d / radar_range * (radar_size / 2.0)),
-				),
-				dimensions: Point2 {
-					x: texture.aspect,
-					y: 1.0,
-				} * 5.0f32.min((0.8 - m) * 50.0),
-				angle: -angle,
-				color: Some(f),
-			});
-		}
+	// Arrow to center of system
+	let q = Point2 { x: 0.0, y: 0.0 } - player_position;
+	let m = q.magnitude();
+	if m > 200.0 {
+		let player_angle: Deg<f32> = q.angle(Vector2 { x: 0.0, y: 1.0 }).into();
+		out.push(UiSprite {
+			texture: arrow_texture,
+			pos: AnchoredUiPosition::NwC(
+				Point2 {
+					x: radar_size / 2.0 + 10.0,
+					y: radar_size / -2.0 - 10.0,
+				} + ((q.normalize() * 0.865) * (radar_size / 2.0)),
+			),
+			dimensions: Point2 {
+				x: arrow_texture.aspect,
+				y: 1.0,
+			} * 10.0,
+			angle: -player_angle,
+			color: Some([1.0, 1.0, 1.0, 1f32.min((m - 200.0) / 400.0)]),
+		});
 	}
 
 	return out;

src/game.rs

@@ -187,6 +187,7 @@ impl Game {
 			&self.content,
 			&self.player,
 			&self.physics,
+			&self.system,
 			self.camera.zoom,
 			self.camera.aspect,
 		);