Commit of work up to day 11 of learnopengl.com.

11-lightmaps/src/shader.hpp

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+#pragma once
+
+#include <glad/glad.h>
+#include <string>
+#include <climits>
+#include <glm/glm.hpp>
+
+struct Material {
+  glm::vec3 ambient{0.1f,0.1f,0.1f};
+  glm::vec3 diffuse{0.5f,0.5f,0.5f};
+  glm::vec3 specular{0.8f, 0.8f, 0.8f};
+  float shininess{32.0f};
+};
+
+struct Light {
+  glm::vec3 position;
+  glm::vec3 ambient;
+  glm::vec3 diffuse;
+  glm::vec3 specular;
+};
+
+class Shader
+{
+public:
+  unsigned int ID = UINT_MAX;
+
+  Shader(const char* vertexPath, const char* fragmentPath);
+  unsigned int load_shader(const std::string& filename, GLenum shader_type);
+  void use() const;
+  void setBool(const std::string &name, bool value) const;
+  void setInt(const std::string &name, int value) const;
+  void setFloat(const std::string &name, float value) const;
+  void setVec4(const std::string &name, float v1, float v2, float v3, float v4) const;
+  void setVec4(const std::string &name, const glm::vec4& value) const;
+  void setVec3(const std::string &name, float v1, float v2, float v3) const;
+  void setVec3(const std::string &name, const glm::vec3& value) const;
+  void setMat4(const std::string &name, const glm::mat4& what) const;
+  void cleanup();
+
+  void applyMaterial(const Material& material) {
+    setVec3("material.ambient", material.ambient);
+    setVec3("material.diffuse", material.diffuse);
+    setVec3("material.specular", material.specular);
+    setFloat("material.shininess", material.shininess);
+  }
+
+  void applyLight(const Light& light) {
+    setVec3("light.position", light.position);
+    setVec3("light.ambient", light.ambient);
+    setVec3("light.diffuse", light.diffuse);
+    setVec3("light.specular", light.specular);
+  }
+};