Add Particle Demo

test/particle-demo/main.cpp

@@ -0,0 +1,91 @@
+#include "Gedeng/Logger.h"
+#include "Gedeng/ParticleSystem.h"
+#include "Gedeng/TextLabel.h"
+#include "Gedeng/Vector3.h"
+#define GEDENG_MAIN
+#include <Gedeng.h>
+
+class ParticleApp : public Gedeng::Application {
+  public:
+    ParticleApp(unsigned long ms_per_update, unsigned int window_size_x, unsigned int window_size_y,
+                Gedeng::String window_name)
+        : Application(ms_per_update, window_size_x, window_size_y, window_name),
+          camera(Gedeng::Camera(90, 1920, 1080, 0.1, 1000.0)),
+          albedo("Resources/Textures/PavingStones/PavingStones070_2K_Color.jpg", Gedeng::Texture::Settings()),
+          bump("Resources/Textures/PavingStones/PavingStones070_2K_Displacement.jpg", Gedeng::Texture::Settings()),
+          normal("Resources/Textures/PavingStones/PavingStones070_2K_Normal.jpg", Gedeng::Texture::Settings()) {
+        // Move and rotate the camera so we see the quad well
+        // camera.translate(glm::vec3(0.0, 0.0, -1.0));
+        // camera.rotate(180, glm::vec3(0.0, 1.0, 0.0));
+
+        particles.set_position(glm::vec3(0.0f, 0.0f, -5.0f));
+        particles.set_velocity(glm::vec3(-5, 0, -5), glm::vec3(5, 20, 5));
+        particles.set_gravity(glm::vec3(0, -5, 0));
+        particles.set_color(glm::vec3(0.0f, 0.5f, 1.0f));
+        particles.set_lifetime(1.5f, 3.0f);
+        particles.set_size(0.75f);
+        particles.set_interval(0.2f);
+        particles.set_number_of_particles(30);
+        particles.set_texture(&albedo);
+    }
+
+    ~ParticleApp() = default;
+
+    void fixed_update(double delta) override {
+        // camera.rotate(delta * 180, glm::vec3(0.0, 1.0, 0.0));
+    }
+
+    void dynamic_update(double delta) override {
+        glClearColor(0.1f, 0.1f, 0.1f, 1.0f);
+        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+        /*         render_shader.use();
+
+                // Camera
+                render_shader.setMat4("projection", camera.get_projection());
+                render_shader.setMat4("view", camera.get_view());
+                render_shader.setVec3("viewPos", camera.get_translation());
+
+                // Lighting
+                render_shader.setVec3("lightPos", glm::vec3(0.0, 1.0, 5.0));
+
+                render_shader.setFloat("number_of_steps", glm::max(0.0f, number_of_steps));
+                render_shader.setFloat("number_of_refinement_steps", glm::max(0.0f, number_of_refinement_steps));
+                render_shader.setFloat("bump_depth", glm::max(0.0f, bump_depth));
+
+                // Textures
+                albedo.bind_to(0);
+                normal.bind_to(1);
+                bump.bind_to(2);
+
+                // Quad which is rendered onto
+                quad_mesh.rotate(delta * 25.0f, glm::normalize(glm::vec3(0.0, 0.0, 1.0)));
+                quad_mesh.render(render_shader);
+
+                debug_text.render_text(25.0f, 25.0f, 1.0f, Gedeng::Vector3(1.0, 1.0, 0.0)); */
+
+        particles.set_camera(camera);
+        particles.update(delta);
+        particles.render();
+    }
+
+  private:
+    Gedeng::ParticleSystem particles;
+
+    Gedeng::VertexBuffer vertex_rectangle;
+
+    Gedeng::Camera camera;
+
+    Gedeng::Texture albedo;
+    Gedeng::Texture bump;
+    Gedeng::Texture normal;
+
+    Gedeng::QuadMesh quad_mesh;
+
+    Gedeng::TextLabel debug_text;
+};
+
+Gedeng::Application *Gedeng::create_application() {
+    GG_CLIENT_INFO("Creating Application");
+    return new ParticleApp(20, 1920, 1080, String("Parallax Demo"));
+}