/***********************
* Johnny Jetpack
* by Paul Adam and Jamie Bradley
* 
* drawlava.c
*
* this file contains all the functions needed to place lava
* in the game environment.
*************************/


#include <glut.h>
#include <GL/gl.h>
#include <GL/glu.h>

#include "johnny.h"
#include "animation.h"

GLfloat LavaColor[4] = {1.0, 0.0, 0.0, 1.0}; 

void UpdateLavaColor(void)
{
	static float inc = .1;
	
	if(LavaColor[1] < 0 || LavaColor[1] > 1)
		inc = -inc;
	
	LavaColor[1] += inc;
}



void DrawLava(int bxmin, int bxmax, int bymin, int bymax, int bzmin, int bzmax)
{
	glPushMatrix();
	glTranslatef((bxmin+bxmax)/2, (bymin+bymax)/2, (bzmin+bzmax)/2);
	glScalef(abs(bxmin-bxmax), abs(bymin-bymax), abs(bzmin - bzmax));
	UpdateLavaColor();
	glMaterialfv (GL_FRONT_AND_BACK, GL_DIFFUSE, LavaColor);
	glMaterialfv (GL_FRONT_AND_BACK, GL_AMBIENT, LavaColor);
	glutSolidCube(1);
	glPopMatrix();
}



void DrawAllLava(void)
{
	int i;
	
	for(i=0; i<NumLava; i++)
	{
		DrawLava(Lava[i][XMin],Lava[i][XMax],
			Lava[i][YMin],Lava[i][YMax],Lava[i][ZMin],Lava[i][ZMax]);
	}
}


void InitializeLava(void)
{
	switch(Level)
	{
		case 0:
			Lava[0][XMin] = -100000;
			Lava[0][XMax] =  100000;
			Lava[0][YMin] = -5000;
			Lava[0][YMax] = -1000;
			Lava[0][ZMin] = -100000;
			Lava[0][ZMax] =  100000;
			
			NumLava = 1;
			break;
	}
}



detectLavaCollision(void)
{
	int index = 9999;
	
	
	index = detectObjectCollisions(Lava, NumLava);
	
	if (index != 9999)
	{
		Velocity[Xv] = 0;
		Velocity[Yv] = 0;
		Velocity[Zv] = 0;
		

		nextJohnnyBound[XMin] = JohnnyBound[XMin];
		nextJohnnyBound[XMax] = JohnnyBound[XMax];
		nextJohnnyBound[YMin] = JohnnyBound[YMin];
		nextJohnnyBound[YMax] = JohnnyBound[YMax];
		nextJohnnyBound[ZMin] = JohnnyBound[ZMin];
		nextJohnnyBound[ZMax] = JohnnyBound[ZMax];
	
		if(AnimationMode != 6)
		{
			AnimationMode = 6;
			Frame = 0;
			Dead = 1;
		}
		
	}
}