variable number of textures?

src/game/entities.rs

@@ -0,0 +1,59 @@
+use cgmath::{Vector4, vec4};
+
+use crate::{input::InputState, text::{create_text_object, update_text}, vulkan::{MeshHandle, PERF_COUNTER_SIZE, VulkanRenderer, gameobject::{GameObject, GameObjectHandle, Updatable}, mesh::{CPUMesh, CPUVertexList}}};
+
+use super::{GameState, TestGame};
+
+pub struct FpsCounter {
+    pub game_object: GameObjectHandle
+}
+
+impl FpsCounter {
+    pub fn new(game: &mut TestGame, renderer: &mut VulkanRenderer) -> Box<FpsCounter> {
+        let text_mesh = create_text_object(&mut game.game_state.brush, renderer, "", 30.);
+        Box::new(FpsCounter { game_object: game.add_game_object(renderer, text_mesh) })
+    }
+}
+
+impl Updatable for FpsCounter {
+    fn update(&mut self, _delta_time: f32, input: &InputState, game_state: &mut GameState, game_objects: &mut Vec<GameObject>, renderer: &mut VulkanRenderer) {
+        if input.button_just_pressed("toggle_framerate") {
+            let go = &mut game_objects[self.game_object];
+            go.visible = !go.visible;
+        }
+
+        let update_duration = renderer.game_data.update_perf_counters.iter().sum::<u128>() / PERF_COUNTER_SIZE as u128;
+        let render_duration = renderer.game_data.render_perf_counters.iter().sum::<u128>() / PERF_COUNTER_SIZE as u128;
+        let other_duration = renderer.game_data.other_perf_counters.iter().sum::<u128>() / PERF_COUNTER_SIZE as u128;
+        let other_variance = renderer.game_data.other_perf_counters.iter().fold(0, |acc, b| acc + (*b as i128 - other_duration as i128) * (*b as i128 - other_duration as i128)) / PERF_COUNTER_SIZE as i128;
+        let text = format!("Update: {:.0}ms\nRender: {:.0}ms\nTotal: {:.0}ms (±{:.1})\nDelta: {:.0}ms", update_duration as f64 / 1000., render_duration as f64 / 1000., other_duration as f64 / 1000., f64::sqrt(other_variance as f64) / 1000., _delta_time * 1000.);
+        update_text(self.game_object, &text, 30., renderer, &mut game_state.brush, game_objects);
+    }
+}
+
+pub struct UiQuad {
+    pub game_object: GameObjectHandle,
+    pub background_color: Vector4<f32>,
+}
+
+impl UiQuad {
+    pub fn new(game: &mut TestGame, renderer: &mut VulkanRenderer) -> UiQuad {
+        let quad_verts = vec![];
+        let cpu_mesh = CPUMesh { vertices: CPUVertexList::Vertex3D(quad_verts), indices: vec![0, 1, 2, 1, 3, 2], local_texture_index: None, local_normal_map_index: None, name: None };
+        let mesh_index = renderer.upload_mesh(cpu_mesh, None);
+        let mesh_handle = MeshHandle {
+            index: mesh_index,
+            textures: vec![],
+            original_path: None,
+            pipeline_index: 1
+        };
+        let go = game.add_game_object(renderer, mesh_handle);
+        UiQuad { game_object: go, background_color: vec4(0., 0., 255., 0.) }
+    }
+}
+
+impl Updatable for UiQuad {
+    fn update(&mut self, delta_time: f32, input: &InputState, game_state: &mut GameState, game_objects: &mut Vec<GameObject>, renderer: &mut VulkanRenderer) {
+        todo!()
+    }
+}