camera: Try fix camera

src/core/render/primitives/camera.rs

@@ -1,6 +1,6 @@
 use std::sync::Arc;
 
-use glam::Mat4;
+use glam::{EulerRot, Mat4, Quat, Vec3};
 use vulkano::{
     Validated,
     buffer::{AllocateBufferError, Subbuffer},
@@ -14,7 +14,8 @@ pub struct Camera {
     view: Mat4,
     projection: Mat4,
 
-    transform: Transform,
+    position: Vec3,
+    rotation: Vec3,
 }
 
 impl Camera {
@@ -22,27 +23,53 @@ impl Camera {
         Self {
             view,
             projection,
-            transform: Transform::default(),
+            position: Vec3::ZERO,
+            rotation: Vec3::ZERO,
         }
     }
 
-    pub fn get_transform(&self) -> &Transform {
-        &self.transform
+    pub fn rotate(&mut self, rotation: Vec3) {
+        self.rotation += rotation;
     }
 
-    pub fn get_transform_mut(&mut self) -> &mut Transform {
-        &mut self.transform
+    pub fn translate(&mut self, translation: Vec3) {
+        self.position += translation;
+    }
+
+    pub fn set_view(&mut self, view: Mat4) {
+        self.view = view;
     }
 
     pub fn set_projection(&mut self, projection: Mat4) {
         self.projection = projection;
     }
 
+    pub fn get_rotation(&self) -> Vec3 {
+        self.rotation
+    }
+
+    pub fn set_rotation(&mut self, rotation: Vec3) {
+        self.rotation = rotation;
+    }
+
+    pub fn get_position(&self) -> Vec3 {
+        self.position
+    }
+
+    pub fn set_position(&mut self, position: Vec3) {
+        self.position = position;
+    }
+
     pub fn create_buffer(
         &self,
         memory_allocator: &Arc<StandardMemoryAllocator>,
     ) -> Result<Subbuffer<[MVP]>, Validated<AllocateBufferError>> {
-        MVP::new(&self.transform.get_mat4(), &self.view, &self.projection)
-            .into_buffer(memory_allocator)
+        let mut world_matrix = Mat4::IDENTITY;
+        world_matrix *= Mat4::from_quat(Quat::from_rotation_z(self.rotation.z));
+        world_matrix *= Mat4::from_quat(Quat::from_rotation_y(self.rotation.y));
+        world_matrix *= Mat4::from_quat(Quat::from_rotation_x(self.rotation.x));
+        world_matrix *= Mat4::from_translation(-self.position);
+
+        MVP::new(&world_matrix, &self.view, &self.projection).into_buffer(memory_allocator)
     }
 }

src/game/main_scene.rs

@@ -6,7 +6,7 @@ use crate::core::render::render_context::RenderContext;
 use crate::core::render::texture::Texture;
 use crate::core::scene::Scene;
 use crate::core::timer::Timer;
-use glam::{Mat4, Quat, Vec3};
+use glam::{Mat4, Vec3};
 use std::sync::Arc;
 use vulkano::buffer::Subbuffer;
 use vulkano::command_buffer::{
@@ -18,20 +18,20 @@ use vulkano::pipeline::{GraphicsPipeline, Pipeline, PipelineBindPoint};
 
 const VERTICES: [Vertex2D; 4] = [
     Vertex2D {
-        position: [-0.5, -0.5],
+        position: [0.0, 0.0],
         uv: [0.0, 0.0],
     },
     Vertex2D {
-        position: [-0.5, 0.5],
-        uv: [0.0, 1.0],
+        position: [0.0, 5.0],
+        uv: [0.0, 0.5],
     },
     Vertex2D {
-        position: [0.5, -0.5],
+        position: [10.0, 0.0],
         uv: [1.0, 0.0],
     },
     Vertex2D {
-        position: [0.5, 0.5],
-        uv: [1.0, 1.0],
+        position: [10.0, 5.0],
+        uv: [1.0, 0.5],
     },
 ];
 
@@ -40,6 +40,7 @@ pub struct MainSceneState {
     vertex_buffer: Subbuffer<[Vertex2D]>,
     camera: Camera,
     texture: Texture,
+    speed: f32,
 }
 
 #[derive(Default)]
@@ -60,7 +61,7 @@ impl Scene for MainScene {
             Vertex2D::create_buffer(Vec::from_iter(VERTICES), render_context.memory_allocator())
                 .unwrap();
 
-        let camera = Camera::new(
+        let mut camera = Camera::new(
             Mat4::look_at_rh(
                 Vec3::new(0.3, 0.3, 1.0),
                 Vec3::new(0.0, 0.0, 0.0),
@@ -73,6 +74,7 @@ impl Scene for MainScene {
                 100.0,
             ),
         );
+        camera.set_position(Vec3::new(-10.0, 0.0, -10.0));
 
         let mut uploads = AutoCommandBufferBuilder::primary(
             render_context.command_buffer_allocator().clone(),
@@ -100,6 +102,7 @@ impl Scene for MainScene {
             vertex_buffer,
             camera,
             texture,
+            speed: 50.0,
         });
     }
 
@@ -111,27 +114,42 @@ impl Scene for MainScene {
     ) {
         let state = self.state.as_mut().unwrap();
 
-        let speed = 50.0 * timer.delta_time();
+        state.speed += input_manager.get_virtual_input_state("mouse_wheel") * 10.0;
 
-        let mut rot = Quat::default();
-        rot *= Quat::from_rotation_y(
-            input_manager.get_virtual_input_state("mouse_x") * speed.to_radians(),
-        );
-        rot *= Quat::from_rotation_x(
-            input_manager.get_virtual_input_state("mouse_y") * speed.to_radians(),
-        );
-        state.camera.get_transform_mut().rotate(rot);
+        let speed = state.speed * timer.delta_time();
 
-        let translation_x =
-            input_manager.get_virtual_input_state("move_right") * timer.delta_time() * speed;
+        state.camera.rotate(Vec3::new(
+            (input_manager.get_virtual_input_state("mouse_y") * 50.0 * timer.delta_time())
+                .to_radians(),
+            (input_manager.get_virtual_input_state("mouse_x") * 50.0 * timer.delta_time())
+                .to_radians(),
+            0.0,
+        ));
 
-        let translation_z =
-            input_manager.get_virtual_input_state("move_forward") * timer.delta_time() * speed;
+        if state.camera.get_rotation().x > 89.0 {
+            state
+                .camera
+                .set_rotation(Vec3::new(89.0, state.camera.get_rotation().y, 0.0));
+        }
 
-        state
-            .camera
-            .get_transform_mut()
-            .translate(Vec3::new(translation_x, 0.0, translation_z));
+        if state.camera.get_rotation().x < -89.0 {
+            state
+                .camera
+                .set_rotation(Vec3::new(-89.0, state.camera.get_rotation().y, 0.0));
+        }
+
+        let rotation = state.camera.get_rotation();
+        let mut translation = Vec3::ZERO;
+
+        let tx = input_manager.get_virtual_input_state("move_right") * timer.delta_time() * speed;
+        translation.x += tx * (rotation.y).to_radians().cos();
+        translation.z += tx * (rotation.y).to_radians().sin();
+
+        let ty = input_manager.get_virtual_input_state("move_forward") * timer.delta_time() * speed;
+        translation.x += ty * (rotation.y + 90.0).to_radians().cos();
+        translation.z += ty * (rotation.y + 90.0).to_radians().sin();
+
+        state.camera.translate(translation);
 
         state.camera.set_projection(Mat4::perspective_rh_gl(
             std::f32::consts::FRAC_PI_2,