好的,所以我有两个问题。首先,我制作了一个正方形,该正方形被锁定在与我的瓷砖大小相同的网格上。这将用于更改瓷砖。它工作正常,除非我开始滚动。我知道为什么会这样。这是因为鼠标位置是相对于窗口的,而不是相对于地图的。我想知道是否有一种方法可以编码方块以跟随我的鼠标,即使我滚动。
当前代码:
if (Event.type == sf::Event::MouseMoved)
{
rect.setFillColor(sf::Color(255, 0, 255));
rect.setSize(sf::Vector2f(BLOCKSIZE, BLOCKSIZE));
int x_offset = (Window.getView().getCenter().x - Window.getSize().x /2);
int y_offset = (Window.getView().getCenter().y - Window.getSize().y /2);
rect.setPosition(((sf::Mouse::getPosition(Window).x/32 *32) + (x_offset/32 *32)), ((sf::Mouse::getPosition(Window).y/32 * 32) + (y_offset/32 * 32)));
std::cout << "Mouse position: x:" << ((sf::Mouse::getPosition(Window).x/32 *32) + (x_offset/32 *32)) << " y:" << ((sf::Mouse::getPosition(Window).y/32 * 32) + (y_offset/32 * 32)) << ")\n\n";
}
下一个问题是加载碰撞。
代码:
for(int i = 0; i < CollisionVector.size(); i++)
{
//Loop through the height of the MapVector
for(int j = 0; j < CollisionVector[i].size(); j++)
{
sf::RectangleShape rect;
//If the stored number is 1
if(CollisionVector[i][j] == 1)
{
rect.setFillColor(sf::Color(255, 0, 255));
rect.setSize(sf::Vector2f(BLOCKSIZE, BLOCKSIZE));
//Set the position of the rectangle
rect.setPosition(j * BLOCKSIZE, i * BLOCKSIZE);
}
//Draw the rectangle
Window.draw(rect);
}
}
如果我添加它,我会得到一个空白屏幕。我希望矩形是透明的,但我将它更改为粉红色以防万一这是问题(不是)
屏幕滚动代码:
void Camera::Update(float x, float y)
{
cameraX = x - (ScreenWidth / 2);
cameraY = y - (ScreenHeight / 2);
if (cameraX < 0)
cameraX = 0.0;
if (cameraY < 0)
cameraY = 0.0;
CameraPosition.reset(sf::FloatRect(cameraX, cameraY, ScreenWidth, ScreenHeight));
CameraPosition.setViewport(sf::FloatRect(0,0,1,1));
}