From c846fe5e269a827b3c324fb66b75be3fabc56a57 Mon Sep 17 00:00:00 2001
From: HampusM <hampus@hampusmat.com>
Date: Mon, 23 Oct 2023 22:38:12 +0200
Subject: feat(engine): add camera

---
 engine/src/renderer/mod.rs | 21 ++++++++-------------
 1 file changed, 8 insertions(+), 13 deletions(-)

(limited to 'engine/src/renderer/mod.rs')

diff --git a/engine/src/renderer/mod.rs b/engine/src/renderer/mod.rs
index d577054..aa828fe 100644
--- a/engine/src/renderer/mod.rs
+++ b/engine/src/renderer/mod.rs
@@ -4,7 +4,7 @@ use std::process::abort;
 use cstr::cstr;
 use glfw::WindowSize;
 
-use crate::matrix::Matrix;
+use crate::camera::Camera;
 use crate::object::Object;
 use crate::opengl::buffer::{
     ArrayKind as ArrayBufferKind,
@@ -18,7 +18,7 @@ use crate::opengl::shader::Program as ShaderProgram;
 use crate::opengl::vertex_array::{PrimitiveKind, VertexArray};
 use crate::opengl::{clear_buffers, BufferClearMask};
 use crate::projection::new_perspective;
-use crate::vector::{Vec2, Vec3};
+use crate::vector::Vec2;
 use crate::vertex::Vertex;
 
 pub fn initialize(window: &glfw::Window) -> Result<(), Error>
@@ -104,6 +104,7 @@ fn opengl_debug_message_cb(
 pub fn render<'obj>(
     objects: impl IntoIterator<Item = &'obj Object>,
     window_size: &WindowSize,
+    camera: &Camera,
 )
 {
     clear_buffers(BufferClearMask::COLOR);
@@ -111,15 +112,7 @@ pub fn render<'obj>(
     for obj in objects {
         obj.renderable().shader_program.activate();
 
-        let mut view = Matrix::new_identity();
-
-        view.translate(&Vec3 {
-            x: 0.0,
-            y: 0.0,
-            z: -3.0,
-        });
-
-        apply_transformation_matrices(obj, &view, window_size);
+        apply_transformation_matrices(obj, camera, window_size);
 
         obj.renderable().vertex_arr.bind(|vert_arr_curr_bound| {
             if let Some(index_info) = &obj.renderable().index_info {
@@ -217,7 +210,7 @@ pub enum Error
 
 fn apply_transformation_matrices(
     object: &Object,
-    view: &Matrix<f32, 4, 4>,
+    camera: &Camera,
     window_size: &WindowSize,
 )
 {
@@ -226,10 +219,12 @@ fn apply_transformation_matrices(
         .shader_program
         .set_uniform_matrix_4fv(cstr!("model"), &object.transform().as_matrix());
 
+    let view = camera.transform().as_matrix();
+
     object
         .renderable()
         .shader_program
-        .set_uniform_matrix_4fv(cstr!("view"), view);
+        .set_uniform_matrix_4fv(cstr!("view"), &view);
 
     #[allow(clippy::cast_precision_loss)]
     let projection = new_perspective(
-- 
cgit v1.2.3-18-g5258