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EnemyFireball.cpp
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EnemyFireball.cpp
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/*
* EnemyFireball.cpp
* Movable
*
* Created by Jeremy Sampson, Matt Oldfield, and Alex Martishius
* Copyright 2011 __MyCompanyName__. All rights reserved.
*
*/
//---------------------------------------------------------
#include "EnemyFireball.h"
#include <string>
#include <sstream>
//---------------------------------------------------------
EnemyFireball::EnemyFireball()
{
setKillsBottom(true);
setKillsSide(true);
setKillsTop(true);
setPoints(0);
setXVelocity(0.0);
setYVelocity(0.0);
}
//---------------------------------------------------------
EnemyFireball::~EnemyFireball()
{
}
//---------------------------------------------------------
void EnemyFireball::draw(bool update)
{
if (update) {
//Determine Texture Position
if (texturePos < 3) {
texturePos++;
}
else{
texturePos = 0;
}
}
//Set proper blending for alpha
glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
glEnable(GL_BLEND);
glEnable( GL_TEXTURE_2D );
glBindTexture( GL_TEXTURE_2D, texture_[texturePos]);
//Draw QUAD
glColor4f(0.7f,0.9f,1.0f,1.0f);
glBegin( GL_QUADS );
glTexCoord2d(0.0,0.0); glVertex2d(left(),bottom());
glTexCoord2d(1.0,0.0); glVertex2d(right(),bottom());
glTexCoord2d(1.0,1.0); glVertex2d(right(),top());
glTexCoord2d(0.0,1.0); glVertex2d(left(),top());
glEnd();
//Disable unwanted gl modes
glDisable(GL_BLEND);
glDisable(GL_TEXTURE_2D);
}
//---------------------------------------------------------
void EnemyFireball::sprite()
{
texturePos = 0;
// Mac environment variable for home directory
char *cHomeDir = NULL;
cHomeDir = getenv("HOME");
// I think Windows uses HOMEPATH
if (!cHomeDir) {
cHomeDir = getenv("HOMEPATH");
}
std::string homeDir = cHomeDir;
std::string iName;
homeDir += "/CS330/sprites/fireball";
std::string pos;
for (int i = 0; i<4; ++i) {
std::stringstream out;
//Generates Filename
iName = homeDir;
out<<i;
pos = out.str();
iName += pos;
iName += ".tex";
//Read in the texture file
FILE *fp = fopen(iName.c_str(), "r");
unsigned char *texture = new unsigned char[4 * 16 * 16];
if (fread(texture, sizeof(unsigned char), 4 * 16 * 16, fp)
!= 4* 16 *16) {
fprintf(stderr, "error reading %s", iName.c_str());
}
fclose(fp);
//Bind Texture to a GLuint
glGenTextures(1, &texture_[i]);
glBindTexture(GL_TEXTURE_2D, texture_[i]);
//Set parameters for how the texture is displayed
glTexEnvf( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
GL_LINEAR_MIPMAP_NEAREST );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER,
GL_LINEAR );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S,
GL_CLAMP );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T,
GL_CLAMP );
//Build Mipmap
gluBuild2DMipmaps(GL_TEXTURE_2D, 4, 16, 16, GL_RGBA,
GL_UNSIGNED_BYTE, texture);
delete [] texture;
}
}