Starting day 19, blending.

19-blending/src/components.hpp

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+#pragma once
+
+#include <glm/glm.hpp>
+#include <vector>
+#include <map>
+#include "json.hpp"
+
+const unsigned int SCR_WIDTH = 800;
+const unsigned int SCR_HEIGHT = 600;
+
+#define MAX_LIGHTS 4
+
+namespace components {
+  template <typename T> struct NameOf;
+
+  struct Material {
+    glm::vec3 ambient{0.1f,0.1f,0.1f};
+    float shininess{32.0f};
+    unsigned int diffuseMap = 0;
+    unsigned int specularMap = 0;
+  };
+
+  ENROLL_COMPONENT(Material, ambient, shininess, diffuseMap, specularMap);
+
+  struct Light {
+    glm::vec3 position{0.0f, 0.0f, 0.0f};
+    glm::vec3 direction{0.0f, 0.0f, 0.0f};
+    glm::vec3 ambient{0.0f, 0.0f, 0.0f};
+    glm::vec3 diffuse{0.0f, 0.0f, 0.0f};
+    glm::vec3 specular{0.0f, 0.0f, 0.0f};
+
+    float constant=0.0f;
+    float linear=0.0f;
+    float quadratic=0.0f;
+    float cut_off=0.0f;
+    float outer_cut_off=0.0f;
+
+    void adjust(float amount) {
+      ambient += amount;
+      diffuse += amount;
+      specular += amount;
+    }
+  };
+
+  ENROLL_COMPONENT(Light,
+      position, direction,
+      ambient, diffuse, specular,
+      constant, linear, quadratic,
+      cut_off, outer_cut_off);
+
+  struct Lighting {
+    std::vector<Light> directional;
+    std::vector<Light> positioned;
+    std::vector<Light> spot;
+    Light camera;
+  };
+
+  ENROLL_COMPONENT(Lighting, directional, positioned, spot, camera);
+
+  struct Camera {
+    glm::vec3 position{0.0f, 0.0f, 3.0f};
+    glm::vec3 front{0.0f, 0.0f, -1.0f};
+    glm::vec3 up{0.0f, 1.0f, 0.0f};
+    glm::vec3 direction{0.0f, 0.0f, 0.0f};
+    float movement_speed = 20.0f;
+  };
+
+  ENROLL_COMPONENT(Camera, position, front, up, direction, movement_speed);
+
+  struct Model {
+    std::string directory;
+    std::string model_path;
+  };
+
+  ENROLL_COMPONENT(Model, directory, model_path);
+
+  using Position = glm::vec3;
+
+  struct Thing {
+    std::string model;
+    Position position;
+    std::string material;
+  };
+
+  ENROLL_COMPONENT(Thing, model, position, material);
+
+  struct Shader {
+    std::string vertex_path;
+    std::string frag_path;
+  };
+
+  ENROLL_COMPONENT(Shader, vertex_path, frag_path);
+
+  struct Scene {
+    components::Shader shader;
+    components::Shader light_shader;
+    std::map<std::string, Material> materials;
+    std::map<std::string, Model> models;
+    std::vector<Thing> things;
+    Camera camera;
+    Lighting light;
+  };
+
+  ENROLL_COMPONENT(Scene, shader, light_shader, materials, models, things, camera, light);
+}