#include <bits/stdc++.h>
#include <raylib.h>
using namespace std;

int main(){
	int sw;
	int sh;
	cin>>sw>>sh;
	InitWindow(sw,sh,"Interactive Rose Curve-Raylib");
	SetTargetFPS(60);
	float scale=200.0,a=1.0,k=5.0;
	Vector2 center={(float)sw/2,(float)sh/2};
	bool useCos=0,animate=0;
	while(!WindowShouldClose()){
		if(IsKeyPressed(KEY_UP))k+=0.5;
		if(IsKeyPressed(KEY_DOWN)&&k>0.5)k-=0.5;
		if(IsKeyPressed(KEY_LEFT)&&scale>10)scale-=10;
		if(IsKeyPressed(KEY_RIGHT))scale+=10;
		if(IsKeyPressed(KEY_SPACE))useCos=!useCos;
		if(IsKeyPressed(KEY_A))animate=!animate;
		if(animate){
			float time=GetTime();
			k=2+3*sin(time*0.5f);
			a=1+0.3f*sin(time*2);
		}
		BeginDrawing();
		ClearBackground(RAYWHITE);
		DrawLine(0,center.y,sw,center.y,LIGHTGRAY);
		DrawLine(center.x,0,center.x,sh,LIGHTGRAY);
		DrawText("X",sw-20,center.y-10,16,GRAY);
		DrawText("Y",center.x+10,10,16,GRAY);
		Vector2 prevP={0,0};
		bool firstP=1;
		for(double theta=0;theta<=2*PI;theta+=0.0001){
			float r=a*(sin(k*theta));
			float x=r*cos(theta);
			float y=r*sin(theta);
			Vector2 point={center.x+x*scale,center.y-y*scale};
			if(!firstP){
				DrawLineEx(prevP,point,2.0,RED);
			}
			prevP=point;
			firstP=false;
		}
		EndDrawing();
	}
	CloseWindow();
}