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41 lines
727 B
C++

#include "shape.hpp" // Shape class interface
Shape::Shape(std::int16_t x0, std::int16_t y0)
: x(x0),
y(y0)
{
}
void Shape::moveBy(std::int16_t dx, std::int16_t dy) {
this->x += dx;
this->y += dy;
}
uint16_t Shape::distanceFrom(Shape const * other) const
{
std::int16_t dx = x - other->x;
std::int16_t dy = y - other->y;
if (dx < 0) {
dx = -dx;
}
if (dy < 0) {
dy = -dy;
}
return dx + dy;
}
void Shape::draw() const {
}
uint32_t Shape::area() const {
return 0U;
}
/* draw all shapes in a given array graph[] */
void drawGraph(Shape const *graph[]) {
for (std::uint8_t i = 0; graph[i] != (Shape *)0; ++i) {
graph[i]->draw(); /* polymorphism! */
}
}