3dtools.cpp

一个三维打斗游戏

// (C) Copyright 1996 by Anthony J. Carin.  All Rights Reserved.

#include "stdafx.h"
#include <3dtools.h>
#include <bmpsurf.h>
#include <levels.h>

tc3dtools::tc3dtools()
{
   m_material[0]      =
   m_material[1]      =
   m_material[2]      = 0.7f;
   m_material[3]      = 1.0f;
   m_lightposition[0] = 1.0f;
   m_lightposition[1] = 2.0f;
   m_lightposition[2] = 0.0f;
   m_lightposition[3] = 1.0f;
}

void tc3dtools::material(tccolor& c)
{
   m_material[0] = c.rvalue();
   m_material[1] = c.gvalue();
   m_material[2] = c.bvalue();
   glMaterialfv(GL_FRONT, GL_AMBIENT, m_material);
}

void tc3dtools::reset()
{
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
    glLoadIdentity();
}

void tc3dtools::lookat(coordinate& camera, coordinate& aim)
{
    bmpsurf *bsurf;
    bsurf = Game->Bmpsurfs()->First();
    while (bsurf)
    {
#ifdef EDITOR
        if (!Game->LevelPtr()->selection)
#endif
        if (bsurf->intersects(camera, aim))
            camera = bsurf->intersectingpoint();
        bsurf = Game->Bmpsurfs()->Next();
    }
    gluLookAt(camera.x(), camera.y(), camera.z(),
              aim.x(), aim.y(), aim.z(),
              aim.x(), aim.y()+100, aim.z());
}

void tc3dtools::lightposition(coordinate &c)
{
    m_lightposition[0] = c.x();
    m_lightposition[1] = c.y();
    m_lightposition[2] = c.z();
    glLightfv(GL_LIGHT0, GL_POSITION, m_lightposition);
}

void tc3dtools::finish()
{
    glFinish();
    SwapBuffers(wglGetCurrentDC());
}

void tc3dtools::beginbmp()
{
    glEnable(GL_TEXTURE_2D);
    glBegin(GL_QUADS);
}

void tc3dtools::endbmp()
{
    glEnd();
    glDisable(GL_TEXTURE_2D);
}

void tc3dtools::bmpvertex1(float x, float y, float z)
{
    glTexCoord2f(1.0f, 0.0f);
    glVertex3f(x, y, z);
}

void tc3dtools::bmpvertex2(float x, float y, float z)
{
    glTexCoord2f(0.0f, 0.0f);
    glVertex3f(x, y, z);
}

void tc3dtools::bmpvertex3(float x, float y, float z)
{
    glTexCoord2f(0.0f, 1.0f);
    glVertex3f(x, y, z);
}

void tc3dtools::bmpvertex4(float x, float y, float z)
{
    glTexCoord2f(1.0f, 1.0f);
    glVertex3f(x, y, z);
}