Reworked UI sprites

crates/render/src/ui/planet.rs

@@ -1,42 +1,62 @@
 use galactica_content::{Content, SystemObject, SystemObjectHandle};
 use galactica_system::{data::ShipState, phys::PhysSimShipHandle};
-use galactica_util::to_radians;
 use glyphon::{cosmic_text::Align, Attrs, Color, Metrics, TextArea, Weight};
 use nalgebra::{Point2, Vector2};
 
-use super::util::{SpriteRect, UiImage, UiTextArea};
-use crate::{vertexbuffer::types::UiInstance, PositionAnchor, RenderInput, RenderState};
+use super::util::{SpriteRect, UiSprite, UiTextArea};
+use crate::{RenderInput, RenderState};
 
 pub(super) struct Planet {
 	// UI elements
 	planet_desc: UiTextArea,
 	planet_name: UiTextArea,
-	landscape: UiImage,
-
-	// Height of whole element,in logical pixels
-	size: f32,
+	sprite: UiSprite,
 
 	/// What object we're displaying currently.
 	/// Whenever this changes, we need to reflow text.
 	current_object: Option<SystemObjectHandle>,
 }
 
-// TODO: no scroll
 // TODO: animate in/out
 
 impl Planet {
 	pub fn new(ct: &Content, state: &mut RenderState) -> Self {
-		let size = 800.0;
+		let mut sprite = UiSprite::new(
+			ct.get_sprite_handle("ui::planet"),
+			None,
+			SpriteRect {
+				pos: Point2::new(0.0, 0.0),
+				dim: Vector2::new(800.0, 800.0),
+			},
+		);
+
+		sprite.add_child_under(Box::new(UiSprite::new(
+			ct.get_sprite_handle("ui::landscape::test"),
+			Some(ct.get_sprite_handle("ui::landscapemask")),
+			SpriteRect {
+				pos: Point2::new(32.0, 75.0) / 512.0,
+				dim: Vector2::new(344.0, 173.0) / 512.0,
+			},
+		)));
+
+		sprite.add_child_under(Box::new(UiSprite::new(
+			ct.get_sprite_handle("ui::planet::button"),
+			None,
+			SpriteRect {
+				pos: Point2::new(375.0, 90.0) / 512.0,
+				dim: Vector2::new(113.569, 20.0) / 512.0,
+			},
+		)));
+
 		let s = Self {
 			// height of element in logical pixels
-			size,
 			current_object: None,
 
 			planet_desc: UiTextArea::new(
 				state,
 				ct.get_sprite_handle("ui::planet"),
 				Point2::new(0.0, 0.0),
-				size,
+				800.0,
 				SpriteRect {
 					pos: Point2::new(25.831, 284.883) / 512.0,
 					dim: Vector2::new(433.140, 97.220) / 512.0,
@@ -50,7 +70,7 @@ impl Planet {
 				state,
 				ct.get_sprite_handle("ui::planet"),
 				Point2::new(0.0, 0.0),
-				size,
+				800.0,
 				SpriteRect {
 					pos: Point2::new(165.506, 82.0) / 512.0,
 					dim: Vector2::new(74.883, 17.0) / 512.0,
@@ -60,17 +80,9 @@ impl Planet {
 				Align::Center,
 			),
 
-			landscape: UiImage::new(
-				ct.get_sprite_handle("ui::planet"),
-				Point2::new(0.0, 0.0),
-				size,
-				ct.get_sprite_handle("ui::landscape::test"),
-				ct.get_sprite_handle("ui::landscapemask"),
-				SpriteRect {
-					pos: Point2::new(32.031, 75.587) / 512.0,
-					dim: Vector2::new(342.811, 171.402) / 512.0,
-				},
-			),
+			// TODO: use both dimensions,
+			// not just height
+			sprite,
 		};
 
 		return s;
@@ -104,7 +116,7 @@ impl Planet {
 			.systemsim
 			.get_ship(&PhysSimShipHandle(ship_handle))
 			.unwrap();
-		let planet_handle = match ship_data.data.get_state() {
+		let planet_handle = match ship_data.get_data().get_state() {
 			ShipState::Landed { target } => *target,
 			_ => unreachable!("tried to draw planet interface while not landed!"),
 		};
@@ -120,16 +132,7 @@ impl Planet {
 		}
 
 		// Draw elements
-		self.landscape.push_to_buffer(state);
-		state.push_ui_buffer(UiInstance {
-			anchor: PositionAnchor::CC.to_int(),
-			position: [0.0, 0.0],
-			angle: to_radians(90.0),
-			size: self.size,
-			color: [1.0, 1.0, 1.0, 1.0],
-			sprite_index: input.ct.get_sprite_handle("ui::planet").get_index(),
-			mask_index: [0, 0],
-		});
+		self.sprite.push_to_buffer(input, state);
 	}
 
 	pub fn get_textarea(&self, _input: &RenderInput, state: &RenderState) -> [TextArea; 2] {

crates/render/src/ui/util/image.rs

@@ -1,60 +0,0 @@
-use galactica_content::SpriteHandle;
-use galactica_util::to_radians;
-use nalgebra::{Point2, Vector2};
-
-use super::SpriteRect;
-use crate::{vertexbuffer::types::UiInstance, PositionAnchor, RenderState};
-
-pub struct UiImage {
-	parent: SpriteHandle,
-	parent_position: Point2<f32>,
-	parent_size: f32,
-
-	inner: SpriteHandle,
-	mask: SpriteHandle,
-	rect: SpriteRect,
-}
-
-impl UiImage {
-	pub fn new(
-		parent: SpriteHandle,
-		parent_position: Point2<f32>,
-		parent_size: f32,
-		inner: SpriteHandle,
-		mask: SpriteHandle,
-		rect: SpriteRect,
-	) -> Self {
-		return Self {
-			parent,
-			parent_position,
-			parent_size,
-			inner,
-			mask,
-			rect,
-		};
-	}
-
-	/// Add this image to the gpu sprite buffer
-	pub fn push_to_buffer(&self, state: &mut RenderState) {
-		let h = self.parent_size;
-		let w = self.parent.aspect * h;
-
-		let zero = Point2::new(
-			self.parent_position.x - (w / 2.0),
-			self.parent_position.y + (h / 2.0),
-		);
-
-		let pos = zero + Vector2::new(self.rect.pos.x * w, -self.rect.pos.y * h);
-		let dim = Vector2::new(self.rect.dim.x * w, self.rect.dim.y * h);
-
-		state.push_ui_buffer(UiInstance {
-			anchor: PositionAnchor::CNw.to_int(),
-			position: pos.into(),
-			angle: to_radians(90.0),
-			size: dim.y,
-			color: [1.0, 1.0, 1.0, 1.0],
-			sprite_index: self.inner.get_index(),
-			mask_index: [1, self.mask.get_index()],
-		});
-	}
-}

crates/render/src/ui/util/mod.rs

@@ -1,11 +1,13 @@
-mod image;
+mod sprite;
 mod textarea;
 
-pub(super) use image::UiImage;
+pub(super) use sprite::UiSprite;
 pub(super) use textarea::UiTextArea;
 
 use nalgebra::{Point2, Vector2};
 
+use crate::{RenderInput, RenderState};
+
 /// Represents a rectangular region inside a sprite.
 pub(crate) struct SpriteRect {
 	/// The position of the top-left corner of this rectangle, in fractional units.
@@ -16,3 +18,13 @@ pub(crate) struct SpriteRect {
 	/// 1.0 will be as tall as the sprite, 0.5 will be half as tall
 	pub dim: Vector2<f32>,
 }
+
+pub(super) trait UiElement {
+	fn push_to_buffer_child(
+		&self,
+		input: &RenderInput,
+		state: &mut RenderState,
+		parent_pos: Point2<f32>,
+		parent_size: Vector2<f32>,
+	);
+}

crates/render/src/ui/util/sprite.rs

@@ -0,0 +1,128 @@
+use galactica_content::SpriteHandle;
+use galactica_util::to_radians;
+use nalgebra::{Point2, Vector2};
+
+use super::{SpriteRect, UiElement};
+use crate::{vertexbuffer::types::UiInstance, PositionAnchor, RenderInput, RenderState};
+
+pub struct UiSprite {
+	sprite: SpriteHandle,
+	mask: Option<SpriteHandle>,
+
+	rect: SpriteRect,
+	children_under: Vec<Box<dyn UiElement>>,
+	children_above: Vec<Box<dyn UiElement>>,
+}
+
+impl UiSprite {
+	pub fn new(sprite: SpriteHandle, mask: Option<SpriteHandle>, rect: SpriteRect) -> Self {
+		return Self {
+			sprite,
+			mask,
+			rect,
+			children_under: Vec::new(),
+			children_above: Vec::new(),
+		};
+	}
+
+	/// Add a child under this sprite
+	pub fn add_child_under(&mut self, child: Box<dyn UiElement>) {
+		self.children_under.push(child);
+	}
+
+	/// Add a child above this sprite
+	//pub fn add_child_above(&mut self, child: Box<dyn UiElement>) {
+	//	self.children_above.push(child);
+	//}
+
+	/// Add this image to the gpu sprite buffer
+	pub fn push_to_buffer(&self, input: &RenderInput, state: &mut RenderState) {
+		let pos = Point2::new(self.rect.pos.x, self.rect.pos.y);
+		let dim = Vector2::new(self.rect.dim.y * self.sprite.aspect, self.rect.dim.y);
+
+		for c in &self.children_under {
+			c.push_to_buffer_child(input, state, pos, dim);
+		}
+
+		let sprite = input.ct.get_sprite(self.sprite);
+		let texture_a = sprite.get_section(sprite.default_section).frames[0]; // ANIMATE
+
+		state.push_ui_buffer(UiInstance {
+			anchor: PositionAnchor::CC.to_int(),
+			position: pos.into(),
+			angle: to_radians(90.0),
+			size: dim.y,
+			color: [1.0, 1.0, 1.0, 1.0],
+			texture_index: [texture_a, texture_a],
+			texture_fade: 1.0,
+			mask_index: self
+				.mask
+				.map(|x| {
+					let sprite = input.ct.get_sprite(x);
+					let texture_b = sprite.get_section(sprite.default_section).frames[0]; // ANIMATE
+					[1, texture_b]
+				})
+				.unwrap_or([0, 0]),
+		});
+
+		for c in &self.children_above {
+			c.push_to_buffer_child(input, state, pos, dim);
+		}
+	}
+}
+
+impl UiElement for UiSprite {
+	/// Add this image to the gpu sprite buffer,
+	/// as a child of another sprite
+	fn push_to_buffer_child(
+		&self,
+		input: &RenderInput,
+		state: &mut RenderState,
+		parent_pos: Point2<f32>,
+		parent_size: Vector2<f32>,
+	) {
+		let zero = Point2::new(
+			parent_pos.x - (parent_size.x / 2.0),
+			parent_pos.y + (parent_size.y / 2.0),
+		);
+
+		let pos = zero
+			+ Vector2::new(
+				self.rect.pos.x * parent_size.x,
+				-self.rect.pos.y * parent_size.y,
+			);
+		let dim = Vector2::new(
+			self.rect.dim.x * parent_size.x,
+			self.rect.dim.y * parent_size.y,
+		);
+
+		for c in &self.children_under {
+			c.push_to_buffer_child(input, state, pos, dim);
+		}
+
+		let sprite = input.ct.get_sprite(self.sprite);
+		let texture_a = sprite.get_section(sprite.default_section).frames[0]; // ANIMATE
+
+		state.push_ui_buffer(UiInstance {
+			anchor: PositionAnchor::CNw.to_int(),
+			position: pos.into(),
+			angle: to_radians(90.0),
+			size: dim.y,
+			color: [1.0, 1.0, 1.0, 1.0],
+			texture_index: [texture_a, texture_a],
+			texture_fade: 1.0,
+			mask_index: self
+				.mask
+				.map(|x| {
+					let sprite = input.ct.get_sprite(x);
+					let texture_b = sprite.get_section(sprite.default_section).frames[0]; // ANIMATE
+					[1, texture_b]
+				})
+				.unwrap_or([0, 0]),
+		});
+
+		for c in &self.children_above {
+			c.push_to_buffer_child(input, state, pos, dim);
+		}
+	}
+}