Hello to anyone reading this. I am currently having an issue implementing collision and gravity in my coding. I am assuming that it is because of what I'm trying to apply it to and/or my method of implementing it.
// 32 x 32 is the size of all rectangles
bool onground = true;
float gravity;
int main() {
sf::RenderWindow win(sf::VideoMode(1600, 960), "Example");
win.setVerticalSyncEnabled(true);
win.setKeyRepeatEnabled(true);
sf::RectangleShape Player;
Player.setFillColor(sf::Color::White);
Player.setSize(sf::Vector2f(32, 32));
Player.setPosition(18 * 32, 57 * 32);
sf::RectangleShape Boxes[60][35];
while (win.isOpen()) {
sf::Event event;
for (int MapY = 0; MapY < 60; ++MapY) {
for (int MapX = 0; MapX < 35; ++MapX) {
switch (TheLevel[MapY][MapX]) {
case 1:
Boxes[MapY][MapX].setSize(sf::Vector2f(32, 32));
Boxes[MapY][MapX].setFillColor(sf::Color::Yellow);
Boxes[MapY][MapX].setPosition(MapX * 32, MapY * 32);
break;
}
//All side collision
if (Player.getPosition().x < Boxes[MapY][MapX].getPosition().x + 32) {
//Player.move(1, 0); ?
} else if (Player.getPosition().x + 32 > Boxes[MapY][MapX].getPosition().x) {
//Player.move(-1, 0); ?
} else if (Player.getPosition().y < Boxes[MapY][MapX].getPosition().y + 32) {
//Player.move(0, 1); ?
} else if (Player.getPosition().y + 32 > Boxes[MapY][MapX].getPosition().y) {
//Player.move(0, -1); ?
gravity = 0;
onground = true;
}
}
}
while (win.pollEvent(event)) {
switch (event.type) {
case sf::Event::Closed :
win.close();
break;
}
}
if (sf::Keyboard::isKeyPressed(sf::Keyboard::Up)) {
if (onground) {
//Player.move(0, -64.0f); ?
//gravity = 4.0f; ?
onground = false;
}
} else if (sf::Keyboard::isKeyPressed(sf::Keyboard::Left)) {
Player.move(-movespeed, 0);
} else if (sf::Keyboard::isKeyPressed(sf::Keyboard::Right)) {
Player.move(movespeed, 0);
}
Player.move(0, gravity);
win.clear();
for (int MapY = 0; MapY < 60; ++MapY) {
for (int MapX = 0; MapX < 35; ++MapX) {
win.draw(Boxes[MapY][MapX]);
}
}
win.draw(Player);
win.display();
}
return 0;
}
(Sorry if my code is a mess.)
From what I've looked into, one of the solution is to use rect.getGlobalBounds().intersects(rect2.getGlobalBounds()). But that will resolve it whenever ANY collision occurs. What I am looking for is a way to detect which side of the player is having a collision against the map and implement gravity. I would appreciate some sample coding.
Thank you to those who are willing to help me.
