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/***********************	INCLUDES	************************/
#include "Editor.h"

/******************		GLOBAL VARIABLES	********************/
Object object;
bool objectSelected = false;
int pickedObject = 0;

//used for camera control
float g_fSpeed = 0.1f;
float g_fTurn = 0.03f;
float OldCamAngleY;
float OldCamAngleX;
float CameraAngleY;
float CameraAngleX;

/******************		GLOBAL FUNCTIONS	********************/
//creates a cone
void initCone()
{
	object.ID = 1;
	object.size = 5;
	object.positionX = 0;
	object.positionY = 0;
	object.positionZ = 0;

	dbMakeObjectCone(object.ID, object.size);
	dbPositionObject(object.ID, object.positionX, object.positionY, object.positionZ);
	dbShowObjectBounds(object.ID, 1);
}

//creates a cube
void initCube()
{
	object.ID = 1;
	object.size = 5;
	object.positionX = 0;
	object.positionY = 0;
	object.positionZ = 0;

	dbMakeObjectCube(object.ID, object.size);
	dbPositionObject(object.ID, object.positionX, object.positionY, object.positionZ);
	dbShowObjectBounds(object.ID, 1);
}

//creates a cylinder
void initCylinder()
{
	object.ID = 1;
	object.size = 5;
	object.positionX = 0;
	object.positionY = 0;
	object.positionZ = 0;

	dbMakeObjectCylinder(object.ID, object.size);
	dbPositionObject(object.ID, object.positionX, object.positionY, object.positionZ);
	dbShowObjectBounds(object.ID, 1);
}

//creates a sphere
void initSphere()
{
	object.ID = 1;
	object.size = 5;
	object.positionX = 0;
	object.positionY = 0;
	object.positionZ = 0;

	dbMakeObjectSphere(object.ID, object.size);
	dbPositionObject(object.ID, object.positionX, object.positionY, object.positionZ);
	dbShowObjectBounds(object.ID, 1);
}

//processes all mouse input
void processMouseInput()
{
	switch(dbMouseClick())
	{
		case MOUSE_LEFT_BUTTON:
			//selects an object on the screen with a left click
			if(!objectSelected)
			{
				pickedObject = dbPickObject(dbMouseX(), dbMouseY(), 1, 5);
				if(pickedObject != 0) objectSelected = true;
			}

			//positions selected object when holding left mouse button and moving mouse
			//can move along the x and z axis by moving the mouse and move along y axis
			//using the scroll button
			if(pickedObject != 0)
			{
				object.positionX += (float)(dbMouseMoveX() * 0.1);
				object.positionY += (float)(dbMouseMoveZ() * 0.01);
				object.positionZ += (float)(dbMouseMoveY() * -0.1);
				dbPositionObject(pickedObject, object.positionX, object.positionY, object.positionZ);
			}
		break;
		case MOUSE_RIGHT_BUTTON:
			//selects an object on the screen with a right click
			if(!objectSelected)
			{
				pickedObject = dbPickObject(dbMouseX(), dbMouseY(), 1, 5);
				if(pickedObject != 0) objectSelected = true;
			}

			//rotates selected object when holding right mouse button and moving mouse
			if(pickedObject != 0)
			{
				dbTurnObjectLeft(pickedObject, (float)(dbMouseMoveX() * 0.2));
				dbPitchObjectUp(pickedObject, (float)(dbMouseMoveY() * 0.2));
				dbRollObjectLeft(pickedObject, (float)(dbMouseMoveZ() * 0.1));
			}
		break;
		case MOUSE_MIDDLE_BUTTON:
		break;
		default:
			//just used to clear any selected objects when mouse buttons not depressed
			objectSelected = false;
		break;
	}
}

//handles all keyboard and mouse input
void userInput(void)
{
	//controls the camera using arrow keys
	dbControlCameraUsingArrowKeys(0, g_fSpeed, g_fTurn);

	//update current mouse position
	processMouseInput();

	switch(dbScanCode())
	{
		case CODE_CONTROL_BUTTON:
			//lets you move the camera around like if you were playing a FPS
			OldCamAngleY = CameraAngleY;
			OldCamAngleX = CameraAngleX;
			CameraAngleY = dbWrapValue(CameraAngleY + dbMouseMoveX() * 0.4f);
			CameraAngleX = dbWrapValue(CameraAngleX + dbMouseMoveY() * 0.4f);
			dbYRotateCamera(dbCurveAngle(CameraAngleY, OldCamAngleY, 24));
			dbXRotateCamera(dbCurveAngle(CameraAngleX, OldCamAngleX, 24));
		break;
	}

	//just for debugging
	int keyPressed = dbScanCode();
	if(keyPressed != 0) printf("key = %dn", keyPressed);
}

//MUST HAVE THIS FUNCTION
//This is the DGSDK game loop.
void DarkSDK(void)
{
	char szFPS[50] = "";

	//must have for DGSDK
	dbSyncOn();

	//creates an object
	//initCone();
	initCube();
	//initCylinder();
	//initSphere();
	
	//must have for DGSDK
	while(LoopSDK())
	{
		//exits program if ESC pressed
		if(dbEscapeKey()) return;

		//handles all user input
		userInput();

		//prints FPS to screen
		sprintf(szFPS, "fps = %d", dbScreenFPS());
		dbText(dbScreenWidth() - 20 - dbTextWidth(szFPS), dbScreenHeight() - 40, szFPS);

		//must have for DGSDK
		dbSync();
	}

	//deletes the cube
	dbDeleteObject(object.ID);
}

//DO NOT MODIFY
//a hack to call winmain (inside the DarkSDK lib) from a main()
//this allows you to create a console win32 program
extern int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrev, LPSTR cmdLine, int cmdShow);
int main(int argc, char **argv)
{
	std::string commandLine = "";
	if(argc > 1)
	{
		commandLine = argv[1];
		for(int i = 2; i < argc; i++)
		{
			commandLine += " ";
			commandLine += argv[i];
		}
	}
	return WinMain((HINSTANCE)(GetModuleHandle(0)), 0, (LPSTR)commandLine.c_str(), SW_SHOW);
}

#pragma once

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <windows.h>
#include <vector>
#include <DarkSDK.h>

#define TRUE		1
#define FALSE		0

//keyboard input (scancodes)
#define CODE_CONTROL_BUTTON		157

//mouse input
#define MOUSE_LEFT_BUTTON		1
#define MOUSE_RIGHT_BUTTON		2
#define MOUSE_MIDDLE_BUTTON		4
#define MOUSE_MISC_BUTTON		8

struct Object
{
	int ID;
	float size;
	float positionX;
	float positionY;
	float positionZ;
};