void Player::updateY(const std::chrono::milliseconds elapsed_time,
const Map& map,
ParticleTools& particle_tools)
{
// Update velocity
const units::Acceleration gravity = is_jump_active_ && velocity_.y < 0
? kJumpGravity
: kGravity;
velocity_.y = std::min(velocity_.y + gravity * elapsed_time.count(),
kMaxSpeedY);
// Calculate delta
const units::Game delta = velocity_.y * elapsed_time.count();
if (delta > 0.0) {
// Check collision in the direction of delta
CollisionInfo info = getWallCollisionInfo(map, bottomCollision(delta));
// React to collision
if (info.collided) {
pos_.y = units::tileToGame(info.row) - kCollisionYBottom;
velocity_.y = 0.0;
is_on_ground_ = true;
} else {
pos_.y += delta;
is_on_ground_ = false;
}
// Check collision in the direction opposite to delta
info = getWallCollisionInfo(map, topCollision(0));
if (info.collided) {
pos_.y = units::tileToGame(info.row) + kCollisionYHeight;
createHeadBumpParticle(particle_tools);
}
} else {
// Check collision in the direction of delta
CollisionInfo info = getWallCollisionInfo(map, topCollision(delta));
// React to collision
if (info.collided) {
pos_.y = units::tileToGame(info.row) + kCollisionYHeight;
createHeadBumpParticle(particle_tools);
velocity_.y = 0.0;
} else {
pos_.y += delta;
is_on_ground_ = false;
}
// Check collision in the direction opposite to delta
info = getWallCollisionInfo(map, bottomCollision(0));
if (info.collided) {
pos_.y = units::tileToGame(info.row) - kCollisionYBottom;
is_on_ground_ = true;
}
}
}
ball_t moveBall(ball_t ball, paddle_t paddle) {
// if the ball hits the left or right edge, reverse the x velocity
if(leftCollision(ball, paddle) || rightCollision(ball)) {
ball.velocity.x *= -1;
}
// if the ball hits the top or bottom edge, reverse the y velocity
if(topCollision(ball) || bottomCollision(ball)) {
ball.velocity.y *= -1;
}
outOfBounds(ball); // check if the ball goes behind the paddle
// makes the ball move
ball.position.x += ball.velocity.x;
ball.position.y += ball.velocity.y;
return ball;
}
void Megaman::stop(double wallX, double wallY, double wallWidth, double wallHeight)
{
// Case: Below surface
if ((spriteData.x + spriteData.width > wallX) && (spriteData.x < wallX + wallWidth) && spriteData.y >= wallY + wallHeight - 10)
{
bottomCollision(wallY, wallHeight);
}
// Case: Above surface
else if (((spriteData.x + spriteData.width > wallX && spriteData.x < wallX + wallWidth) && spriteData.y + spriteData.height <= wallY + 20) && velocity.y >= 0)
{
topCollision(wallY);
}
// Case: Left of surface
else if (spriteData.x + spriteData.width >= wallX && spriteData.x + spriteData.width < wallX + wallWidth && spriteData.y < wallY + wallHeight)
{
leftCollision(wallX);
}
// Case: Right of surface
else if (spriteData.x < wallX + wallWidth && spriteData.x + spriteData.width > wallX && spriteData.y < wallY + wallHeight)
{
rightCollision(wallX, wallWidth);
}
}
//=============================================================================
// stop
// Collision detection between Mega Man and solid surfaces
//=============================================================================
void Megaman::stop(std::vector<VECTOR2> collisionVector, std::vector<RECT> tileCoordinates)
{
if (collisionVector.size() == 1)
{
stop(tileCoordinates[0].left, tileCoordinates[0].top, tileCoordinates[0].right - tileCoordinates[0].left, tileCoordinates[0].bottom - tileCoordinates[0].top);
}
else
{
while (collisionVector.empty() == false)
{
VECTOR2 tempCV = collisionVector[0];
collisionVector.erase(collisionVector.begin());
RECT tempTC = tileCoordinates[0];
tileCoordinates.erase(tileCoordinates.begin());
bool blocksInLine = false;
bool onTop = false;
bool onBottom = false;
bool onLeft = false;
bool onRight = false;
for (int i = 0; i < collisionVector.size(); i++)
{
if (!collisionVector.empty() && tempTC.top == tileCoordinates[i].top)
{
collisionVector.erase(collisionVector.begin() + i);
tileCoordinates.erase(tileCoordinates.begin() + i);
i--;
blocksInLine = true;
}
}
// If blocks lined up on the same y-coordinate (top y)
if (blocksInLine)
{
//top/bottom collision
if (tempCV.y > 0)
{
topCollision(tempTC.top);
}
else
{
bottomCollision(tempTC.top, tempTC.bottom - tempTC.top);
}
}
else
{
for (int i = 0; i < collisionVector.size(); i++)
{
if (!collisionVector.empty() && tempTC.left == tileCoordinates[i].left)
{
collisionVector.erase(collisionVector.begin() + i);
tileCoordinates.erase(tileCoordinates.begin() + i);
i--;
blocksInLine = true;
}
}
// If blocks lined up on the same x-coordinate (left x)
if (blocksInLine)
{
//left/right collision
if (tempCV.x > 0)
{
leftCollision(tempTC.left);
}
else
{
rightCollision(tempTC.left, tempTC.right - tempTC.left);
}
}
else
{
stop(tempTC.left, tempTC.top, tempTC.right - tempTC.left, tempTC.bottom - tempTC.top);
}
}
if (collisionVector.size() == 1 || collisionVector.empty())
{
if (!collisionVector.empty())
{
stop(tileCoordinates[0].left, tileCoordinates[0].top, tileCoordinates[0].right - tileCoordinates[0].left, tileCoordinates[0].bottom - tileCoordinates[0].top);
collisionVector.erase(collisionVector.begin());
tileCoordinates.erase(tileCoordinates.begin());
}
}
}
}
}
