#include "SoftwareRasteriser.h" #include "Mesh.h" #include "Texture.h" // Create Field of stars void generateRandomStars(vector<RenderObject *> &output, const int numOfAsteroids = 100, const float xySpan = 1.0f, const float zSpan = 1.0f); // Create field of asteroids void generateRandomAsteroids(vector<RenderObject *> &output, const int numOfAsteroids = 100, const float xySpan = 1.0f, const float zSpan = 1.0f); // Create field of asteroids void generateAsteroids(vector<RenderObject *> &output, const Vector3 &position, const float scale); int main() { const int screenX = 800; const int screenY = 600; SoftwareRasteriser r(screenX, screenY); //Set the scene const float aspect = (float)screenX / (float)screenY; r.SetProjectionMatrix(Matrix4::Perspective(0.1f, 100.0f, aspect, 50.0f)); r.SetTextureSamplingMode(SAMPLE_BILINEAR); r.SetBlendSamplingMode(SAMPLE_BLEND_ALPHA); vector<RenderObject *> object; // Planet (triangle fan) RenderObject *planet = new RenderObject(); planet->mesh = Mesh::GeneratePlanetCircle(7.0f, 30); planet->texture = Texture::TextureFromTGA("../planet.tga"); planet->modelMatrix = Matrix4::Translation(Vector3(-6.0f, -8.0f, -15.0f)); object.push_back(planet); // Blue moon (textured sphere) // textures of 256x256 pixels RenderObject *moon = new RenderObject(); moon->mesh = Mesh::GenerateMoonSphere(2.5f, 15, Colour(255, 0, 0, 255)); moon->texture = Texture::TextureFromTGA("../moon.tga"); moon->modelMatrix = Matrix4::Translation(Vector3(-4.0f, -4.0f, -8.0f)); object.push_back(moon); // Planet asteroid belt (triangle strip) RenderObject *spaceDebris = new RenderObject(); spaceDebris->mesh = Mesh::GenerateSpaceDebrish(10, 8, 16); spaceDebris->texture = Texture::TextureFromTGA("../space_debris.tga"); spaceDebris->modelMatrix = Matrix4::Translation(Vector3(-6.0f, -8.0f, -15.0f)) * Matrix4::Rotation(90.0f, Vector3(1.0f, 0.0f, 0.0f)); object.push_back(spaceDebris); // Spaceship 1 (triangles with interpolated colours and semi-transparency on back window) RenderObject *spaceship = new RenderObject(); spaceship->mesh = Mesh::LoadMeshFile("../spaceshipV2.asciimesh"); spaceship->modelMatrix = Matrix4::Scale(Vector3(1.0, 1.0, 1.0)) * Matrix4::Translation(Vector3(2.0f, 2.0f, -2.0f)) * Matrix4::Rotation(40.0f, Vector3(1.0, 1.0, 0.0)) * Matrix4::Rotation(-100.0f, Vector3(0.0, 1.0, 0.0)); object.push_back(spaceship); // Spaceship 2 RenderObject *spaceship2 = new RenderObject(); spaceship2->mesh = Mesh::LoadMeshFile("../spaceshipV1.asciimesh"); spaceship2->modelMatrix = Matrix4::Scale(Vector3(1.5, 1.5, 1.5)) * Matrix4::Translation(Vector3(3.0f, 3.0f, -3.0f)); object.push_back(spaceship2); // Spaceship 3 RenderObject *spaceship3 = new RenderObject(); spaceship3->mesh = Mesh::LoadMeshFile("../spaceship.asciimesh"); spaceship3->modelMatrix = Matrix4::Scale(Vector3(1.5, 1.5, 1.5)); Matrix4::Translation(Vector3(4.0f, 4.0f, -4.0f)); object.push_back(spaceship3); // Create field of starts (random point primitives) generateRandomStars(object, 7500); // Create Asteroids (random line primitive shapes) generateRandomAsteroids(object, 75); // Create asteroids closer to the scene (random line primitive shapes) generateRandomAsteroids(object, 35, 0.5); Matrix4 viewMatrix = Matrix4::Translation(Vector3(0.0f, 0.0f, -15.0f)); Matrix4 cameraRotation; while (r.UpdateWindow()) { // Move faster when holding Space float cameraSpeed = 0.25f; if (Keyboard::KeyHeld(KEY_SPACE)) { cameraSpeed = 0.5f; } //Used for debugging /* //when button pressed destroy planet if (Keyboard::KeyTriggered(KEY_1)) { planet->~RenderObject(); } //when button pressed destroy moon if (Keyboard::KeyTriggered(KEY_2)) { moon->~RenderObject(); } //when button pressed destroy space debris if (Keyboard::KeyTriggered(KEY_3)) { spaceDebris->~RenderObject(); }*/ // Blend mode if (Keyboard::KeyTriggered(KEY_B)) { string mode; if (r.GetBlendSamplingMode() == SAMPLE_BLEND_ALPHA) { r.SetBlendSamplingMode(SAMPLE_BLEND_ADDITION); mode = "mode: Addition"; } else { r.SetBlendSamplingMode(SAMPLE_BLEND_ALPHA); mode = "mode: Alpha"; } std::cout << "Blend sampling mode: " << mode << std::endl; } if (Keyboard::KeyDown(KEY_A)) { viewMatrix = viewMatrix * Matrix4::Translation(Vector3(cameraSpeed, 0.0f, 0.0f)); } if (Keyboard::KeyDown(KEY_D)) { viewMatrix = viewMatrix * Matrix4::Translation(Vector3(-cameraSpeed, 0.0f, 0.0f)); } if (Keyboard::KeyDown(KEY_W)) { viewMatrix = viewMatrix * Matrix4::Translation(Vector3(0.0f, -cameraSpeed, 0.0f)); } if (Keyboard::KeyDown(KEY_S)) { viewMatrix = viewMatrix * Matrix4::Translation(Vector3(0.0f, cameraSpeed, 0.0f)); } if (Keyboard::KeyDown(KEY_E)) { viewMatrix = viewMatrix * Matrix4::Translation(Vector3(0.0f, 0.0f, cameraSpeed)); } if (Keyboard::KeyDown(KEY_Q)) { viewMatrix = viewMatrix * Matrix4::Translation(Vector3(0.0f, 0.0f, -cameraSpeed)); } const Vector2 mouseRelativePosition = Mouse::GetRelativePosition(); cameraRotation = cameraRotation * Matrix4::Rotation(mouseRelativePosition.x, Vector3(0.0f, 1.0f, 0.0f)) * Matrix4::Rotation(mouseRelativePosition.y, Vector3(1.0f, 0.0f, 0.0f)); r.SetViewMatrix(viewMatrix * cameraRotation); // Make the space ship fly spaceship->modelMatrix = spaceship->modelMatrix * Matrix4::Rotation(0.8f, Vector3(0.0f, 15.0f, 0.0f)) * Matrix4::Translation(Vector3(0.0f, 0.0f, 0.10f)); r.ClearBuffers(); // Draw scene objects for (vector<RenderObject *>::iterator scene = object.begin(); scene != object.end(); ++scene) r.DrawObject(*scene); r.SwapBuffers(); } // Remove all objects object.clear(); return 0; } //Generates a star field of points at random positions. void generateRandomStars(vector<RenderObject *> &output, const int numOfAsteroids, const float xySpan, const float zSpan) { for (int i = 0; i < numOfAsteroids; ++i) { const float x = ((float)((rand() % 100) - 50)) * xySpan; const float y = ((float)((rand() % 100) - 50)) * xySpan; const float z = ((float)((rand() % 100) - 50)) * zSpan; // Generate random colour const int red = (rand() % 100) + 122; const int green = (rand() % 100) + 122; const int blue = (rand() % 100) + 122; Colour colour = Colour(red, green, blue, 223); RenderObject *randomStarsObject = new RenderObject(); randomStarsObject->mesh = Mesh::GeneratePoints(Vector3(), colour); randomStarsObject->modelMatrix = Matrix4::Translation(Vector3(x, y, z)); output.push_back(randomStarsObject); } } // Random asteroids of random sizes void generateRandomAsteroids(vector<RenderObject *> &output, const int numOfAsteroids, const float xySpan, const float zSpan) { for (int i = 0; i < numOfAsteroids; ++i) { const float x = ((float)((rand() % 100) - 50)) * xySpan; const float y = ((float)((rand() % 100) - 50)) * xySpan; const float z = ((float)((rand() % 100) - 50)) * zSpan; const float scale = ((float)(rand() % 100)) / 100.0f; generateAsteroids(output, Vector3(x, y, z), scale); } } //Generates asteroids void generateAsteroids(vector<RenderObject *> &output, const Vector3 &position, const float scale) { const Matrix4 modelMat = Matrix4::Translation(position) * Matrix4::Scale(Vector3(scale, scale, scale)); const float rotation = (float)((rand() % 35) + 160); RenderObject *asteroidObject1 = new RenderObject(); asteroidObject1->mesh = Mesh::GenerateNSidedShape(7); asteroidObject1->modelMatrix = modelMat; RenderObject *asteroidObject2 = new RenderObject(); asteroidObject2->mesh = Mesh::GenerateNSidedShape(9); asteroidObject2->modelMatrix = modelMat * Matrix4::Scale(Vector3(0.75f, 0.75f, 0.75f)) * Matrix4::Rotation(rotation, Vector3(0.0f, 0.0f, 0.8f)); output.push_back(asteroidObject1); output.push_back(asteroidObject2); }