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source: orxonox.OLD/trunk/src/world_entities/image_entity.cc @ 6842

Last change on this file since 6842 was 6841, checked in by patrick, 19 years ago

trunk: submenu loading work, graphics chaos

File size: 4.1 KB
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1/*
2   orxonox - the future of 3D-vertical-scrollers
3
4   Copyright (C) 2004 orx
5
6   This program is free software; you can redistribute it and/or modify
7   it under the terms of the GNU General Public License as published by
8   the Free Software Foundation; either version 2, or (at your option)
9   any later version.
10
11   ### File Specific:
12   main-programmer: Patrick Boenzli
13   co-programmer: ...
14*/
15
16#define DEBUG_SPECIAL_MODULE DEBUG_MODULE_WEAPON
17
18#include "image_entity.h"
19
20#include "load_param.h"
21#include "factory.h"
22
23#include "graphics_engine.h"
24#include "material.h"
25#include "glincl.h"
26#include "state.h"
27
28
29using namespace std;
30
31
32CREATE_FACTORY(ImageEntity, CL_IMAGE_ENTITY);
33
34
35/**
36 * standart constructor
37 */
38ImageEntity::ImageEntity (const TiXmlElement* root)
39{
40  this->init();
41  if( root)
42    this->loadParams(root);
43}
44
45
46/**
47 * destroys a ImageEntity
48*/
49ImageEntity::~ImageEntity ()
50{
51  if (this->material)
52    delete this->material;
53}
54
55
56/**
57 * initializes the ImageEntity
58 */
59void ImageEntity::init()
60{
61  this->setClassID(CL_IMAGE_ENTITY, "ImageEntity");
62  this->setName("ImageEntity");
63
64  this->setLayer(E2D_LAYER_TOP);
65  this->setRotationSpeed(5);
66  this->setSize(GraphicsEngine::getInstance()->getResolutionX()/10.0, GraphicsEngine::getInstance()->getResolutionY()/10.0);
67
68  this->setBindNode(this);
69  this->material = new Material;
70  this->setTexture("pictures/error_texture.png");
71  this->bBillboarding = false;
72}
73
74
75void ImageEntity::loadParams(const TiXmlElement* root)
76{
77  PNode::loadParams(root);
78
79  LoadParam(root, "texture", this, ImageEntity, setTexture)
80      .describe("the texture-file to load onto the ImageEntity");
81
82  LoadParam(root, "size", this, ImageEntity, setSize)
83      .describe("the size of the ImageEntity in Pixels");
84
85  LoadParam(root, "rotation-speed", this, ImageEntity, setRotationSpeed)
86      .describe("the Speed with which the ImageEntity should rotate");
87
88  LoadParam(root, "billboarding", this, ImageEntity, toggleBillboarding)
89      .describe("sets the Billboard to always look in the direction of the Player");
90}
91
92
93/**
94 * sets the size of the ImageEntity.
95 * @param size the size in pixels
96 */
97void ImageEntity::setSize(float sizeX, float sizeY)
98{
99  this->setSize2D(sizeX, sizeY);
100}
101
102
103/**
104 * sets the material to load
105 * @param textureFile The texture-file to load onto the crosshair
106 */
107void ImageEntity::setTexture(const char* textureFile)
108{
109  this->material->setDiffuseMap(textureFile);
110}
111
112
113/** this turns on/off the billboarding of this WorldEntity
114 *
115 * This means that the image will always look in the direction of the Player
116 */
117void ImageEntity::toggleBillboarding()
118{
119  this->bBillboarding = !this->bBillboarding;
120}
121
122
123/**
124 * ticks the ImageEntity
125 * @param dt the time to ticks
126 */
127void ImageEntity::tick(float dt)
128{
129  // let the crosshair rotate
130  //this->shiftDir2D(dt * rotationSpeed);
131
132
133  float z = 0.0f;
134  glReadPixels ((int)this->getAbsCoor2D().x,
135                 GraphicsEngine::getInstance()->getResolutionY()-(int)this->getAbsCoor2D().y-1,
136                 1,
137                 1,
138                 GL_DEPTH_COMPONENT,
139                 GL_FLOAT,
140                 &z);
141
142
143  GLdouble objX=.0, objY=.0, objZ=.0;
144  gluUnProject(this->getAbsCoor2D().x,
145               GraphicsEngine::getInstance()->getResolutionY()-this->getAbsCoor2D().y-1,
146               .99,  // z
147               GraphicsEngine::modMat,
148               GraphicsEngine::projMat,
149               GraphicsEngine::viewPort,
150               &objX,
151               &objY,
152               &objZ );
153
154  //this->setAbsCoor(objX, objY, objZ);
155}
156
157
158/**
159 * draws the crosshair
160 */
161void ImageEntity::draw() const
162{
163  glPushMatrix();
164  glTranslatef(this->getAbsCoor2D().x, this->getAbsCoor2D().y, 0);
165
166  //glRotatef(this->getAbsDir2D(), 0,0,1);
167  this->material->select();
168  glBegin(GL_TRIANGLE_STRIP);
169  glTexCoord2f(0, 0);
170  glVertex2f(-this->getSizeX2D(), -this->getSizeY2D());
171  glTexCoord2f(1, 0);
172  glVertex2f(this->getSizeX2D(), -this->getSizeY2D());
173  glTexCoord2f(0, 1);
174  glVertex2f(-this->getSizeX2D(), this->getSizeY2D());
175  glTexCoord2f(1, 1);
176  glVertex2f(this->getSizeX2D(), this->getSizeY2D());
177  glEnd();
178  glPopMatrix();
179
180}
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