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#include "KeyboardController.h"
#include <cmath>
#include <raylib.h>
static constexpr float DIAGONAL {std::sin(M_PI / 4.0f)};
static int check_axis(int negative_key, int positive_key, int last);
KeyboardController::KeyboardController() :
x_axis {0},
y_axis {0}
{
}
Vector2
KeyboardController::direction()
{
x_axis = check_axis(KEY_LEFT, KEY_RIGHT, x_axis);
y_axis = check_axis(KEY_UP, KEY_DOWN, y_axis);
if (x_axis != 0 && y_axis != 0)
return {x_axis * DIAGONAL, y_axis * DIAGONAL};
return {x_axis, y_axis};
}
int
check_axis(const int negative_key, const int positive_key, const int last)
{
int next = last;
if (last == 1 && IsKeyReleased(positive_key))
next = 0;
else if (last == -1 && IsKeyReleased(negative_key))
next = 0;
if (IsKeyPressed(positive_key))
next = 1;
else if (IsKeyPressed(negative_key))
next = -1;
return next;
}
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