void init_polygon(cargo& ball)
{
const sf::Vector2f position{ball.get_position()};
const float mult{0.33f};
assert(mult > 0.0f);
const sf::FloatRect image_bounds{ball.get_sizes()};
const float width{mult*image_bounds.width};
const float height{mult*image_bounds.height};
m_polygon.setPointCount(3);
m_polygon.setPoint(0, position + sf::Vector2f(width, height));
m_polygon.setPoint(1, position + sf::Vector2f(width, -height));
m_polygon.setPoint(2, position + sf::Vector2f(-width, height));
m_polygon.setFillColor(m_light_cyan);
}
int main(int argc, char** argv)
{
sf::RenderWindow window(sf::VideoMode(1000, 1000), "Physics Game!");
delete world;
CreateWorld();
int currentLevel = 1;
#pragma region Background Graphics
// Load the background images, create a sprite and assign the image.
// Sky
sf::Texture backgroundTexture;
backgroundTexture.loadFromFile("assets/Sky.png");
backgroundTexture.setSmooth(true);
backgroundTexture.setRepeated(true);
sf::Sprite background;
background.setPosition(0,0);
background.setScale((float)window.getSize().x,1.0f);
background.setTexture(backgroundTexture);
// Sun
sf::Texture sunTexture;
sunTexture.loadFromFile("assets/Sun.png");
sunTexture.setSmooth(true);
sunTexture.setRepeated(true);
sf::Sprite sun;
sun.setPosition((window.getSize().x - (250*0.6f)) - window.getSize().x * 0.1f , 100);
sun.setScale(0.6f,0.6f);
sun.setTexture(sunTexture);
// Cloud
sf::Texture cloud1Texture;
cloud1Texture.loadFromFile("assets/Cloud1.png");
cloud1Texture.setSmooth(true);
cloud1Texture.setRepeated(false);
sf::Sprite cloud1;
cloud1.setPosition(window.getSize().x*0.15f,80);
cloud1.setScale(1.0f,1.0f);
cloud1.setTexture(cloud1Texture);
// Hills
sf::Texture hillsTexture;
hillsTexture.loadFromFile("assets/Hills.png");
hillsTexture.setSmooth(false);
hillsTexture.setRepeated(true);
sf::Sprite hills1;
hills1.setPosition(0,(float)window.getSize().y - 184);
hills1.setScale(1.0f ,1.0f);
hills1.setTexture(hillsTexture);
sf::Sprite hills2;
hills2.setPosition(766,(float)window.getSize().y - 184);
hills2.setScale(1.0f,1.0f);
hills2.setTexture(hillsTexture);
sf::Sprite hills3;
hills3.setPosition(766*2,(float)window.getSize().y - 184);
hills3.setScale(1.0f,1.0f);
hills3.setTexture(hillsTexture);
#pragma endregion
// Prepare for simulation. Typically we use a time step of 1/60 of a
// second (60Hz) and 10 iterations. This provides a high quality simulation
// in most game scenarios.
float32 timeStep = 1.0f / 30.0f;
int32 velocityIterations = 8;
int32 positionIterations = 3;
std::vector<shape> lines;
sf::Texture wheel;
wheel.loadFromFile("assets/Wheel.png");
wheel.setSmooth(true);
sf::Texture bikeWheel;
bikeWheel.loadFromFile("assets/BikeWheel.png");
bikeWheel.setSmooth(true);
sf::Texture bikeFrame_t;
bikeFrame_t.loadFromFile("assets/BikeFrame.png");
bikeFrame_t.setSmooth(true);
#pragma region events
while (window.isOpen()) {
static sf::Clock deltaClock;
sf::Time deltaTime = deltaClock.restart();
static float time;
time += deltaTime.asSeconds() * 5;
sf::Event event;
while (window.pollEvent(event))
{
// If the window is closed, close the SFML window
switch (event.type) {
case sf::Event::Closed:
window.close();
break;
// Resize window : set new size
case sf::Event::Resized:
window.setView(sf::View(sf::FloatRect(0.0f, 0.0f, (float)event.size.width, (float)event.size.height)));
// Rescale and Reposition the background elements
background.setScale((float)window.getSize().x,1.0f);
sun.setPosition((window.getSize().x - (250*0.6f)) - window.getSize().x * 0.1f , 100);
hills1.setPosition(0,(float)window.getSize().y - 184);
hills2.setPosition(766,(float)window.getSize().y - 184);
hills3.setPosition(766*2,(float)window.getSize().y - 184);
break;
case sf::Event::MouseButtonPressed:
static bool pressed = false;
static vector2 start,end;
// When we click save the positions to a Vector2
if(event.mouseButton.button == sf::Mouse::Left) {
//printf("%f - %f\n", (float)event.mouseButton.x, (float)event.mouseButton.y);
// If we are drawing lines constantly, dont perform click drawing
if(!pressed) {
start.x = (float)event.mouseButton.x;
start.y = (float)event.mouseButton.y;
pressed = true;
} else {
end.x = (float)event.mouseButton.x;
end.y = (float)event.mouseButton.y;
if(start == end) {
pressed = false;
break;
}
// Create the SFML visual box based on click locations
shape sf_shape = shape(start,end, 2);
lines.push_back(sf_shape);
vector2 center = center.GetCenter(start, end);
// Create the Box2D physics box.
static b2FixtureDef myFixture;
static b2BodyDef myBody;
myBody.type = b2_staticBody;
myBody.position.Set(center.x, center.y);
b2Body* body = world->CreateBody(&myBody);
b2Vec2 vertices[4];
// Caluclate the positions of the Box2D Verts
sf_shape.Box2DVertPos();
vertices[0].Set(sf_shape.a.x * SCALE -start.x*0.5f, sf_shape.a.y * SCALE -start.y*0.5f);
vertices[3].Set(sf_shape.b.x * SCALE -start.x*0.5f, sf_shape.b.y * SCALE -start.y*0.5f);
vertices[2].Set(sf_shape.c.x * SCALE -start.x*0.5f, sf_shape.c.y * SCALE -start.y*0.5f);
vertices[1].Set(sf_shape.d.x * SCALE -start.x*0.5f, sf_shape.d.y * SCALE -start.y*0.5f);
b2PolygonShape polyShape;
polyShape.Set(vertices, 4);
myFixture.shape = &polyShape;
myFixture.density = 1;
myFixture.friction = 1;
body->CreateFixture(&myFixture);
pressed = false;
}
}
}
}
#pragma endregion
if(currentLevel == 2) l1.Update();
#pragma region Keyboard_Input__Reset
// RESET ALL
if (sf::Keyboard::isKeyPressed(sf::Keyboard::Escape)) {
// Clear all SFML Lines
lines.clear();
// Pause the game
paused = true;
// Reset the World
delete world;
LevelLoad(currentLevel);
}
else if (sf::Keyboard::isKeyPressed(sf::Keyboard::R)) {
// Reset the Level
delete world;
LevelLoad(currentLevel);
// Recreate the physics on all the lines
RecreateLines(lines);
int x = 9;
// Pause the game
paused = true;
}
else if (sf::Keyboard::isKeyPressed(sf::Keyboard::Num1)) {
// Clear all SFML Lines
lines.clear();
// Pause the game
paused = true;
// Reset the World
delete world;
LevelLoad(1);
currentLevel = 1;
} else if (sf::Keyboard::isKeyPressed(sf::Keyboard::Num2)) {
// Clear all SFML Lines
lines.clear();
// Pause the game
paused = true;
// Reset the World
delete world;
LevelLoad(2);
currentLevel = 2;
}
#pragma endregion
#pragma region Pause
static bool toggle = false;
if (sf::Keyboard::isKeyPressed(sf::Keyboard::Space)) {
if(!toggle) {
paused = !paused;
toggle = true;
}
} else {
toggle = false;
}
#pragma endregion
if(time > 0.016f) {
if(!paused) world->Step(time, velocityIterations, positionIterations);
time = 0;
}
window.clear();
#pragma region BackgroundArt
window.draw(background);
window.draw(sun);
window.draw(cloud1);
window.draw(hills1);
window.draw(hills2);
window.draw(hills3);
#pragma endregion
#pragma region DrawSFML
size_t size = 0;
sf::ConvexShape cShape;
cShape.setFillColor(sf::Color::Red);
//This loops through every single body in the game world
for(b2Body* b = world->GetBodyList(); b; b = b->GetNext()) {
//This loops through every fixture in the current body
for(b2Fixture* f = b->GetFixtureList(); f; f = f->GetNext()) {
//This checks to see if the type of the fixture is a polygon, if it is then draw the polygon
if(f->GetType() == b2Shape::e_polygon && currentLevel != 2) {
// Create the convex shape
static sf::ConvexShape cShape;
cShape.setFillColor(sf::Color::Red);
//Stores a pointer to the shape stored in the fixture
b2PolygonShape* s = (b2PolygonShape*)f->GetShape();
//Get the amount of vertices stored in the shape
size = s->GetVertexCount();
//Set the size of the object in SFML so it knows how many vertices the shape should have
cShape.setPointCount(size);
//Loop through the vertices and send them from Box2D to the SFML shape
for(int i = 0; i < size; i++) {
//Stores the current vertex in v
b2Vec2 v = s->GetVertex(i);
//Converts the vertex from its local space to where it is in the world
cShape.setPoint(i, sf::Vector2f((b->GetWorldVector(v).x + b->GetPosition().x), (b->GetWorldVector(v).y + b->GetPosition().y)));
}
//Draws the shape onto the window
window.draw(cShape);
}
else if ((f->GetType() == b2Shape::e_polygon && b->GetType() == b2_dynamicBody)) {
static sf::Sprite bikeFrame;
bikeFrame.setTexture(bikeFrame_t);
bikeFrame.setPosition(f->GetBody()->GetPosition().x, f->GetBody()->GetPosition().y);
bikeFrame.setScale(0.5f,0.5f);
bikeFrame.setRotation(b->GetAngle() * 57.2957795f);
bikeFrame.setOrigin(0,0);
window.draw(bikeFrame);
}
else if (f->GetType() == b2CircleShape::e_circle) {
// // Create A cricle to be drawn
// static sf::CircleShape circle;
// circle.setFillColor(sf::Color::Green);
// //Stores a pointer to the shape stored in the fixture
// b2PolygonShape* s = (b2PolygonShape*)f->GetShape();
// // Calculate the radius for the SFML circle
// circle.setRadius(s->m_radius);
// circle.setPosition(f->GetBody()->GetPosition().x - circle.getRadius(), f->GetBody()->GetPosition().y - circle.getRadius());
// window.draw(circle);
b2PolygonShape* s = (b2PolygonShape*)f->GetShape();
static sf::Sprite sWheel;
sWheel.setScale((s->m_radius*0.01)*2,(s->m_radius*0.01)*2);
sWheel.setPosition (f->GetBody()->GetPosition().x, f->GetBody()->GetPosition().y);
if(currentLevel == 1) sWheel.setTexture(wheel);
if(currentLevel == 2) sWheel.setTexture(bikeWheel);
sWheel.setOrigin(50,50);
sWheel.setRotation(b->GetAngle() * 57.2957795f);
window.draw(sWheel);
}
}
}
#pragma endregion
#pragma region DrawClickedLines
// draw all elements in line vector
for(int i = 0; i != lines.size(); ++i) {
static sf::VertexArray quad(sf::Quads, 4);
quad[0].position = sf::Vector2f(lines[i].a.x, lines[i].a.y);
quad[1].position = sf::Vector2f(lines[i].b.x, lines[i].b.y);
quad[2].position = sf::Vector2f(lines[i].c.x, lines[i].c.y);
quad[3].position = sf::Vector2f(lines[i].d.x, lines[i].d.y);
for(int j = 0; j != quad.getVertexCount(); ++j)
quad[j].color = sf::Color::Green;
window.draw(quad);
// Create shadows under all the lines
static sf::VertexArray shadow(sf::Quads, 4);
shadow[0].position = sf::Vector2f(lines[i].a.x, lines[i].a.y);
shadow[1].position = sf::Vector2f(lines[i].b.x, lines[i].b.y);
shadow[2].position = sf::Vector2f(lines[i].c.x, lines[i].c.y+80);
shadow[3].position = sf::Vector2f(lines[i].d.x, lines[i].d.y+80);
shadow[0].color = sf::Color::Color(0,0,0,80);
shadow[1].color = sf::Color::Color(0,0,0,80);
shadow[2].color = sf::Color::Color(0,0,0,0);
shadow[3].color = sf::Color::Color(0,0,0,0);
window.draw(shadow);
}
#pragma endregion
#pragma region Play/Pause
// Change the play and pause Icon on screen based on state
if(!paused) {
static sf::VertexArray play(sf::Triangles, 3);
vector2 location(10,10);
play[0].position = sf::Vector2f(0 +location.x, 0 +location.y);
play[1].position = sf::Vector2f(20 +location.x, 15 +location.y);
play[2].position = sf::Vector2f(0 +location.x, 30 +location.y);
play[0].color = sf::Color::Green;
play[1].color = sf::Color::Green;
play[2].color = sf::Color::Green;
window.draw(play);
} else {
static sf::VertexArray pause1(sf::Quads, 4);
static sf::VertexArray pause2(sf::Quads, 4);
vector2 location(10,10);
pause1[0].position = sf::Vector2f(0 +location.x, 0 +location.y);
pause1[1].position = sf::Vector2f(5 +location.x, 0 +location.y);
pause1[2].position = sf::Vector2f(5 +location.x, 30 +location.y);
pause1[3].position = sf::Vector2f(0 +location.x, 30 +location.y);
pause1[0].color = sf::Color::Blue;
pause1[1].color = sf::Color::Blue;
pause1[2].color = sf::Color::Blue;
pause1[3].color = sf::Color::Blue;
pause2[0].position = sf::Vector2f(10 +location.x, 0 +location.y);
pause2[1].position = sf::Vector2f(15 +location.x, 0 +location.y);
pause2[2].position = sf::Vector2f(15 +location.x, 30 +location.y);
pause2[3].position = sf::Vector2f(10 +location.x, 30 +location.y);
pause2[0].color = sf::Color::Blue;
pause2[1].color = sf::Color::Blue;
pause2[2].color = sf::Color::Blue;
pause2[3].color = sf::Color::Blue;
window.draw(pause1);
window.draw(pause2);
}
#pragma endregion
window.display();
}
return 0;
}