before shadows

src/main.rs

@@ -1,16 +1,18 @@
+use glam::Quat;
 use macroquad::prelude as mq;
 use rapier3d::prelude::*;
 
 mod engine;
 use engine::*;
 
+mod camera;
+
 mod graphics_util;
 use graphics_util::*;
 
 #[macroquad::main("3D")]
 async fn main() {
     // Graphics Initialization
-
     let vertex = include_str!("shaders/shader.vert");
     let fragment = include_str!("shaders/shader.frag");
 
@@ -35,41 +37,38 @@ async fn main() {
     // Physics Initialization
     let mut world = World::default();
     world.register_free_collider(
-        ColliderBuilder::cuboid(5.0, 0.1, 5.0)
+        ColliderBuilder::cuboid(50.0, 0.1, 50.0)
             .restitution(0.5)
             .build(),
         None,
     );
 
-    let body = world.register_body(
-        RigidBodyBuilder::dynamic()
-            .translation(vector![0.0, 10.0, 0.0])
-            .rotation(vector![std::f32::consts::PI / 4.2, 0.0, 0.0])
-            .build(),
-    );
+    for i in 0..10 {
+        let body = world.register_body(
+            RigidBodyBuilder::dynamic()
+                .translation(vector![0.0, 10.0 + i as f32, 0.0])
+                .rotation(vector![std::f32::consts::PI / 4.2, i as f32, i as f32])
+                .build(),
+        );
+        world.register_collider(
+            ColliderBuilder::cuboid(0.5, 0.5, 0.5)
+                .restitution(0.5)
+                .build(),
+            body,
+            None,
+        );
+    }
 
-    let coll = world.register_collider(
-        ColliderBuilder::cuboid(0.5, 0.5, 0.5)
-            .restitution(0.5)
-            .build(),
-        body,
-        None,
-    );
-
-    // Main Loop
+    let mut cam: camera::FirstPersonCamera =
+        camera::FirstPersonCamera::new(mq::vec3(0.0, 10.0, -5.0));
     loop {
         // Physics Simulation
         world.step();
 
         // Graphics Rendering
         mq::clear_background(mq::LIGHTGRAY);
-
-        mq::set_camera(&mq::Camera3D {
-            position: mq::vec3(-20., 15., 0.),
-            up: mq::vec3(0., 1., 0.),
-            target: mq::vec3(0., 0., 0.),
-            ..Default::default()
-        });
+        cam.update(mq::get_frame_time());
+        cam.apply();
 
         mq::draw_grid(20, 1., mq::BLACK, mq::GRAY);
 
@@ -111,8 +110,6 @@ async fn main() {
             }
         }
 
-        // draw_sphere(world.position_of_rb(body).unwrap().into(), 0.5, None, BLUE);
-
         mq::next_frame().await
     }
 }

src/shaders/shader.frag

@@ -3,6 +3,7 @@
 
 in vec4 v_normal;
 in vec4 color;
+in vec3 light_direction;
 uniform int render_normals_bool;
 
 out vec4 FragColor;
@@ -11,8 +12,7 @@ const float ambient_strenght = 0.3;
 const float diffuse_strenght = 0.7;
 
 void main() {
-        vec3 lightDir = vec3(1.0, 0.3, 0.2);
-        float diff = max(dot(normalize(vec3(v_normal.x, v_normal.y, v_normal.z)), normalize(lightDir)), 0) * diffuse_strenght;
+        float diff = max(dot(normalize(vec3(v_normal.x, v_normal.y, v_normal.z)), normalize(light_direction)), 0) * diffuse_strenght;
         if (render_normals_bool == 1) {
                 FragColor = vec4(v_normal);
         }

src/shaders/shader.vert

@@ -10,7 +10,10 @@ uniform mat4 Projection;
 
 out vec4 v_normal;
 out vec4 color;
+out vec3 light_direction;
 void main() {
+        vec4 light_dir = vec4(1.0, 1.0, 0.0, 0.0) * Model;
+        light_direction = vec3(light_dir.x, light_dir.y, light_dir.z);
         color = color0;
         v_normal = normal;
         gl_Position = Projection * Model * vec4(position, 1.0);