#include <dxlib.h>
 
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow) 
{
	const int WIDTH = 960; // Width of the window	
	const int HEIGHT = 640; // Height of the window
	const int WHITE = GetColor(255, 255, 255); // Color white
 
 
	SetWindowText("DXLib Window"); // Set the window title
	SetGraphMode(WIDTH, HEIGHT, 32); // Set the graphics mode	
	ChangeWindowMode(TRUE); // Change to windowed mode
 
	// Initialize DXLib
	if (DxLib_Init() == -1) {
		return -1; // Initialization failed
	}
 
	SetBackgroundColor(72, 61, 139); // Set the background color to white
	SetDrawScreen(DX_SCREEN_BACK); // Set the drawing screen to back buffer
	int timer = 0;
	int colors[7] = {
		GetColor(255, 0, 0),   // Red
		GetColor(0, 255, 0),   // Green
		GetColor(0, 0, 255),   // Blue
		GetColor(255, 255, 0), // Yellow
		GetColor(255, 165, 0), // Orange
		GetColor(75, 0, 130),   // Indigo
		GetColor(238, 130, 238) // Violet
	};
	long long int inputNum = 0; // Index for cycling through colors
	const int MAX_MOUSE_POS = 10000; // Maximum mouse position array size
 
	struct Point //座標を保持する構造体
	{
		int x = -1;
		int y = -1;
	};
 
	Point mPos[MAX_MOUSE_POS] = { {-1, -1} }; // Array to hold mouse positions
 
	//mPos[0].x
	//mPos[0].y
	//
	//	mPos[1]
	//	・・・
	//mPos[MAX_MOUSE_POS - 1]
	// Main loop
	while (1) {
		ClearDrawScreen(); // Clear the screen
		timer++;
		DrawFormatString(0, 0, WHITE, "Timer: %d", timer); // Draw the timer value
 
		//if (CheckHitKey(KEY_INPUT_UP)) DrawString(0, 20, "Up key pressed", WHITE); // Draw if the Up key is pressed
		//if (CheckHitKey(KEY_INPUT_DOWN)) DrawString(0, 40, "Down key pressed", WHITE); // Draw if the Down key is pressed
		//if (CheckHitKey(KEY_INPUT_LEFT)) DrawString(0, 60, "Left key pressed", WHITE); // Draw if the Left key is pressed
		//if (CheckHitKey(KEY_INPUT_RIGHT)) DrawString(0, 80, "Right key pressed", WHITE); // Draw if the Right key is pressed
		//DrawBox(100, 100, 300, 300, GetColor(255, 0, 0), TRUE); // Draw a filled red box
		//DrawBox(100, 100, 300, 300, GetColor(0, 255, 0), FALSE, 3);
		int mouseX, mouseY;
		GetMousePoint(&mouseX, &mouseY); // Get mouse input
		DrawFormatString(400, 0, WHITE, "Mouse Position: (%d, %d)", mouseX, mouseY); // Draw the mouse position
		if (GetMouseInput() & MOUSE_INPUT_LEFT) {
			DrawString(400, 20, "Left mouse button pressed", WHITE); // Draw if the left mouse button is pressed
 
			mPos[inputNum % MAX_MOUSE_POS].x = mouseX; // Store the mouse X position
			mPos[inputNum % MAX_MOUSE_POS].y = mouseY; // Store the mouse Y position
 
			inputNum++; // Increment the input number to cycle through colors
		}
 
 
		for (int i = 0;i < MAX_MOUSE_POS;i++) {
			if (mPos[i].x != -1 && mPos[i].y != -1) {
				DrawCircle(mPos[i].x, mPos[i].y, 20, colors[i%7], TRUE); // Draw circles at stored mouse positions
			}
		}
		if (GetMouseInput() & MOUSE_INPUT_RIGHT) DrawString(400, 40, "Right mouse button pressed", WHITE); // Draw if the right mouse button is pressed
 
		// Your drawing code goes here
		ScreenFlip(); // Update the screen
		WaitTimer(33); // Wait for approximately 33 milliseconds (30 FPS)
		if (ProcessMessage() == -1) {
			break; // Exit the loop if a message indicates to quit
		}
		if (CheckHitKey(KEY_INPUT_ESCAPE)) {
			break; // Exit the loop if the Escape key is pressed
		}
	}
	// Terminate DXLib
	DxLib_End();
	return 0;
}