pacman/exercises/17/ghost/solution/Clyde.cpp

49 lines
919 B
C++

#include "Clyde.hpp"
namespace pacman {
Clyde::Clyde()
: Ghost(Atlas::Ghost::clyde) {
pos = initialPosition();
}
double Clyde::speed() const {
if (state == State::Eyes)
return 2;
if (state == State::Frightened)
return 0.5;
return 0.75;
}
void Clyde::setTarget(Position pacManPos) {
if (state == State::Eyes) {
target = initialPosition();
return;
}
if (isInPen()) {
target = penDoorPosition();
return;
}
// Clyde always target its scatter target, unless pacman is further than 8 tiles away
target = scatterTarget();
if (state == State::Scatter) {
return;
}
const auto distanceFomPacMan = std::hypot(pos.x - pacManPos.x, pos.y - pacManPos.y);
if (distanceFomPacMan > 8) {
target = pacManPos;
}
}
Position Clyde::initialPosition() const {
return { 15.5, 14 };
}
Position Clyde::scatterTarget() const {
return { 0, 30 };
}
} // namespace pacman