Bridge.cpp

#include "Bridge.h"

#include <SFML/Graphics/Shape.hpp>

Bridge::Bridge(b2World& aWorld, float aX, float aY) :
		myWorld(aWorld) {
	//myRopes.push_back(new Rope(myCollisionWorld, (x+0.5f)*BLOCK_SIZE, y*BLOCK_SIZE));

	b2Body* last = NULL;

	for (int i = 0; i < 10; i++) {
		float BRIDGE_LENGTH = 0.1;
		float BRIDGE_WIDTH = 0.1;

		b2BodyDef bridgeDef;
		bridgeDef.position = b2Vec2(aX + i * BRIDGE_WIDTH * 2, aY);
		bridgeDef.linearDamping = 10.0f;

		//dropboxDef.angle = 0.2;

		if (i != 0 && i != 9) {
			bridgeDef.type = b2_dynamicBody;
		}

		b2PolygonShape bridgeShape;

		bridgeShape.SetAsBox(BRIDGE_WIDTH / 2, BRIDGE_LENGTH / 2);

		b2Body* bridgeBody = myWorld.CreateBody(&bridgeDef);
		bridgeBody->CreateFixture(&bridgeShape, 0.05f);

		if (i != 0) {
			b2DistanceJointDef jointDef;
			jointDef.Initialize(last, bridgeBody,
					last->GetPosition() + b2Vec2(BRIDGE_WIDTH / 2, 0),
					bridgeBody->GetPosition() - b2Vec2(BRIDGE_WIDTH / 2, 0));
			jointDef.length = BRIDGE_WIDTH * 1.1;

			myWorld.CreateJoint(&jointDef);
		}

		myParts.push_back(bridgeBody);

		last = bridgeBody;
	}
}

void Bridge::Draw(sf::RenderTarget& aTarget, float aXScale, float aYScale,
		float aXTranslate, float aYTranslate) {
	std::vector<b2Body*>::iterator it;
	for (it = myParts.begin(); it != myParts.end(); it++) {
		float x = ((*it)->GetPosition().x - aXTranslate) * aXScale;
		float y = ((*it)->GetPosition().y - aYTranslate) * aYScale;

		sf::CircleShape shape(0.1 * aXScale);
		shape.setPosition(sf::Vector2f(x, y));
		shape.setFillColor(sf::Color::Black);

		aTarget.draw(shape);
	}
}