1 files changed, 12 insertions, 5 deletions
diff --git a/engine/src/opengl/shader.rs b/engine/src/opengl/shader.rs
index 070897e..36dc1a4 100644
--- a/engine/src/opengl/shader.rs
+++ b/engine/src/opengl/shader.rs
@@ -2,7 +2,6 @@ use std::ffi::CStr;
 use std::ptr::null_mut;
 
 use crate::matrix::Matrix;
-use crate::shader::Kind;
 use crate::vector::Vec3;
 
 #[derive(Debug)]
@@ -20,7 +19,7 @@ impl Shader
         Self { shader }
     }
 
-    pub fn set_source(&self, source: &str) -> Result<(), Error>
+    pub fn set_source(&mut self, source: &str) -> Result<(), Error>
     {
         if !source.is_ascii() {
             return Err(Error::SourceNotAscii);
@@ -39,7 +38,7 @@ impl Shader
         Ok(())
     }
 
-    pub fn compile(&self) -> Result<(), Error>
+    pub fn compile(&mut self) -> Result<(), Error>
     {
         unsafe {
             gl::CompileShader(self.shader);
@@ -90,6 +89,14 @@ impl Drop for Shader
     }
 }
 
+/// Shader kind.
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
+pub enum Kind
+{
+    Vertex,
+    Fragment,
+}
+
 impl Kind
 {
     fn into_gl(self) -> gl::types::GLenum
@@ -117,14 +124,14 @@ impl Program
         Self { program }
     }
 
-    pub fn attach(&self, shader: &Shader)
+    pub fn attach(&mut self, shader: &Shader)
     {
         unsafe {
             gl::AttachShader(self.program, shader.shader);
         }
     }
 
-    pub fn link(&self) -> Result<(), Error>
+    pub fn link(&mut self) -> Result<(), Error>
     {
         unsafe {
             gl::LinkProgram(self.program);