#include "Function.h"

void triangle(HDC hdc, int x, int y, COLORREF color) {
	HPEN hpen = CreatePen(PS_SOLID, 2, color);
	SelectObject(hdc, hpen);
	SelectObject(hdc, GetStockObject(NULL_BRUSH));

	POINT pt[3] = {
		{x,y - 20},
		{x + 20,y + 20},
		{x - 20, y + 20}
	};

	Polygon(hdc, pt, 3);

	DeleteObject(hpen);
	SelectObject(hdc, GetStockObject(DC_PEN));
	SelectObject(hdc, GetStockObject(DC_BRUSH));
}

void arrow(HDC hdc, int x, int y, COLORREF color) {
	HPEN hpen = CreatePen(PS_SOLID, 2, color);
	SelectObject(hdc, hpen);
	SelectObject(hdc, GetStockObject(NULL_BRUSH));

	POINT pt[4] = {
		{x, y},
		{x + 20, y - 20},
		{x, y + 20},
		{x - 20, y - 20}
	};

	Polygon(hdc, pt, 4);

	DeleteObject(hpen);
	SelectObject(hdc, GetStockObject(DC_PEN));
	SelectObject(hdc, GetStockObject(DC_BRUSH));
}

void diamond(HDC hdc, int x, int y, COLORREF color) {
	HPEN hpen = CreatePen(PS_SOLID, 2, color);
	SelectObject(hdc, hpen);
	SelectObject(hdc, GetStockObject(NULL_BRUSH));

	POINT pt[4] = {
		{x, y - 20},
		{x + 20, y},
		{x, y + 20},
		{x - 20, y}
	};

	Polygon(hdc, pt, 4);

	DeleteObject(hpen);
	SelectObject(hdc, GetStockObject(DC_PEN));
	SelectObject(hdc, GetStockObject(DC_BRUSH));
}

void flag(HDC hdc, int x, int y, COLORREF color) {
	HPEN hpen = CreatePen(PS_SOLID, 2, color);
	SelectObject(hdc, hpen);

	POINT pt[6] = {
		{x - 20, y},
		{x + 20, y},
		{x, y - 10},
		{x + 20, y - 20},
		{x - 20, y - 20},
		{x - 20, y + 20}
	};

	Polyline(hdc, pt, 6);

	DeleteObject(hpen);
	SelectObject(hdc, GetStockObject(DC_PEN));
}

void crown(HDC hdc, int x, int y, COLORREF color) {
	HPEN hpen = CreatePen(PS_SOLID, 2, color);
	SelectObject(hdc, hpen);
	SelectObject(hdc, GetStockObject(NULL_BRUSH));

	POINT pt[5] = {
		{x, y},
		{x + 20, y - 20},
		{x + 20, y + 20},
		{x - 20, y + 20},
		{x - 20, y - 20},
	};

	Polygon(hdc, pt, 5);

	DeleteObject(hpen);
	SelectObject(hdc, GetStockObject(DC_PEN));
	SelectObject(hdc, GetStockObject(DC_BRUSH));
}

void pattern1(HDC hdc, void (*f)(HDC, int, int, COLORREF)) {
	COLORREF colors[Length] = {
		RGB(255,0,0),
		RGB(0,255,0),
		RGB(0,0,255),
		RGB(255,0,255),
		RGB(255,255,0)
	};
	POINT pt[Length] = {
		{40,40},
		{240,40},
		{440,40},
		{40,240},
		{440,240}
	};
	for (int i = 0; i < Length; i++) {
		(*f)(hdc, pt[i].x, pt[i].y, colors[i]);
	}
}