Source/Menu.cpp

   1 #include <vector>
   2 #include <string>
   3 #include "gamegl.h"
   4
   5 #include "Menu.h"
   6 using namespace Menu;
   7
   8 extern float multiplier;
   9
  10 struct MenuItem {
  11     enum MenuItemType{NONE,LABEL,BUTTON,IMAGE,IMAGEBUTTON,MAPMARKER,MAPLINE,MAPLABEL} type;
  12     int id;
  13     string label;
  14     int texture;
  15     MBCallback cb;
  16     int x,y,w,h;
  17     float r,g,b;
  18     float effectfade;
  19
  20     XYZ linestart;
  21     XYZ lineend;
  22     float linestartsize;
  23     float lineendsize;
  24
  25     MenuItem(MenuItemType _type, int _id, const string& _label, int _texture, MBCallback _cb,
  26             int _x, int _y, int _w, int _h, float _r, float _g, float _b):
  27         type(_type),id(_id),label(_label),texture(_texture),cb(_cb),
  28         x(_x),y(_y),w(_w),h(_h),r(_r),g(_g),b(_b),effectfade(0) {
  29         if(type==MenuItem::BUTTON){
  30             if(w==-1)
  31                 w=label.length()*10;
  32             if(h==-1)
  33                 h=20;
  34         }
  35     }
  36     MenuItem(const XYZ& start, const XYZ& end, float startsize, float endsize, float _r, float _g, float _b):
  37         type(MAPLINE),id(-1),label(""),r(_r),g(_g),b(_b),
  38         linestart(start),lineend(end),linestartsize(startsize),lineendsize(endsize) { }
  39 };
  40
  41 vector<MenuItem> items;
  42
  43
  44
  45
  46 void Menu::GUITick(Game* game){
  47     for(vector<MenuItem>::iterator it=items.begin();it!=items.end();it++){
  48                 if(it->id==game->selected){
  49                         it->effectfade+=multiplier*5;
  50                         if(it->effectfade>1)
  51                 it->effectfade=1;
  52                 }else{
  53                         it->effectfade-=multiplier*5;
  54                         if(it->effectfade<0)
  55                 it->effectfade=0;
  56                 }
  57     }
  58 }
  59
  60 void Menu::clearMenu(){
  61     items.clear();
  62 }
  63
  64 void Menu::addLabel(int id,const string& label,int x,int y){
  65     items.push_back(MenuItem(MenuItem::LABEL,id,label,0,NULL,x,y,-1,-1,1,0,0));
  66 }
  67 void Menu::addButton(int id,const string& label,MBCallback cb,int x,int y,int w,int h){
  68     items.push_back(MenuItem(MenuItem::BUTTON,id,label,0,cb,x,y,w,h,1,0,0));
  69 }
  70 void Menu::addButton(int id,const string& label,MBCallback cb,int x,int y,int w,int h,float r,float g,float b){
  71     items.push_back(MenuItem(MenuItem::BUTTON,id,label,0,cb,x,y,w,h,r,g,b));
  72 }
  73 void Menu::addImage(int id,int texture,int x,int y,int w,int h){
  74     items.push_back(MenuItem(MenuItem::IMAGE,id,"",texture,NULL,x,y,w,h,1,1,1));
  75 }
  76 void Menu::addImageButton(int id,int texture,MBCallback cb,int x,int y,int w,int h){
  77     items.push_back(MenuItem(MenuItem::IMAGEBUTTON,id,"",texture,cb,x,y,w,h,1,1,1));
  78 }
  79 void Menu::addImageButton(int id,int texture,MBCallback cb,int x,int y,int w,int h,float r,float g,float b){
  80     items.push_back(MenuItem(MenuItem::IMAGEBUTTON,id,"",texture,cb,x,y,w,h,r,g,b));
  81 }
  82 void Menu::addMapLine(const XYZ& start, const XYZ& end, float startsize, float endsize, float r,float g,float b){
  83     items.push_back(MenuItem(start,end,startsize,endsize,r,g,b));
  84 }
  85 void Menu::addMapMarker(int id,int texture,MBCallback cb,int x,int y,int w,int h,float r,float g,float b){
  86     items.push_back(MenuItem(MenuItem::MAPMARKER,id,"",texture,cb,x,y,w,h,r,g,b));
  87 }
  88
  89 void Menu::setMapItem(int id){
  90     for(vector<MenuItem>::iterator it=items.begin();it!=items.end();it++)
  91         if(it->id==id){
  92             if(it->type==MenuItem::LABEL)
  93                 it->type=MenuItem::MAPLABEL;
  94             break;
  95         }
  96 }
  97
  98 void Menu::setButtonText(int id,const string& label){
  99     for(vector<MenuItem>::iterator it=items.begin();it!=items.end();it++)
 100         if(it->id==id){
 101             it->label=label;
 102             it->w=it->label.length()*10;
 103             break;
 104         }
 105 }
 106
 107 void Menu::setButtonText(int id,const string& label,int x,int y,int w,int h){
 108     for(vector<MenuItem>::iterator it=items.begin();it!=items.end();it++)
 109         if(it->id==id){
 110             it->label=label;
 111             it->x=x;
 112             it->y=y;
 113             if(w==-1)
 114                 it->w=it->label.length()*10;
 115             if(h==-1)
 116                 it->h=20;
 117             break;
 118         }
 119 }
 120
 121 int Menu::getSelected(int mousex, int mousey){
 122     for(vector<MenuItem>::iterator it=items.begin();it!=items.end();it++)
 123         if(it->type==MenuItem::BUTTON || it->type==MenuItem::IMAGEBUTTON || it->type==MenuItem::MAPMARKER){
 124             int mx=mousex;
 125             int my=mousey;
 126             if(it->type==MenuItem::MAPMARKER){
 127                 mx-=1;
 128                 my+=2;
 129             }
 130             if(mx>=it->x && mx<it->x+it->w && my>=it->y && my<it->y+it->h)
 131                 return it->id;
 132         }
 133     return -1;
 134 }
 135
 136 void Menu::drawItems(Game* game){
 137     glEnable(GL_TEXTURE_2D);
 138     glEnable(GL_ALPHA_TEST);
 139     glEnable(GL_BLEND);
 140     for(vector<MenuItem>::iterator it=items.begin();it!=items.end();it++){
 141         switch(it->type){
 142         case MenuItem::IMAGE:
 143         case MenuItem::IMAGEBUTTON:
 144         case MenuItem::MAPMARKER:
 145             glColor4f(it->r,it->g,it->b,1);
 146             glPushMatrix();
 147             if(it->type==MenuItem::MAPMARKER){
 148                 glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
 149                 glTranslatef(2,-5,0); //from old code
 150             }else{
 151                 glBlendFunc(GL_SRC_ALPHA,GL_ONE);
 152             }
 153             glBindTexture(GL_TEXTURE_2D,it->texture);
 154                         glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
 155                         glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
 156             glBegin(GL_QUADS);
 157             glTexCoord2f(0,0);
 158             glVertex3f(it->x,it->y,0);
 159             glTexCoord2f(1,0);
 160             glVertex3f(it->x+it->w,it->y,0);
 161             glTexCoord2f(1,1);
 162             glVertex3f(it->x+it->w,it->y+it->h,0);
 163             glTexCoord2f(0,1);
 164             glVertex3f(it->x,it->y+it->h,0);
 165             glEnd();
 166             if(it->type!=MenuItem::IMAGE){
 167                 //mouseover highlight
 168                 for(int i=0;i<10;i++){
 169                     if(1-((float)i)/10-(1-it->effectfade)>0){
 170                         glColor4f(it->r,it->g,it->b,(1-((float)i)/10-(1-it->effectfade))*.25);
 171                         glBegin(GL_QUADS);
 172                         glTexCoord2f(0,0);
 173                         glVertex3f(it->x-((float)i)*1/2, it->y-((float)i)*1/2, 0);
 174                         glTexCoord2f(1,0);
 175                         glVertex3f(it->x+it->w+((float)i)*1/2, it->y-((float)i)*1/2, 0);
 176                         glTexCoord2f(1,1);
 177                         glVertex3f(it->x+it->w+((float)i)*1/2, it->y+it->h+((float)i)*1/2, 0);
 178                         glTexCoord2f(0,1);
 179                         glVertex3f(it->x-((float)i)*1/2, it->y+it->h+((float)i)*1/2, 0);
 180                         glEnd();
 181                     }
 182                 }
 183             }
 184             glPopMatrix();
 185             break;
 186         case MenuItem::LABEL:
 187         case MenuItem::BUTTON:
 188             glColor4f(it->r,it->g,it->b,1);
 189             glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
 190             game->text.glPrint(it->x,it->y,it->label.c_str(),0,1,640,480);
 191             if(it->type!=MenuItem::LABEL){
 192                 //mouseover highlight
 193                 glBlendFunc(GL_SRC_ALPHA,GL_ONE);
 194                 for(int i=0;i<15;i++){
 195                     if(1-((float)i)/15-(1-it->effectfade)>0){
 196                         glColor4f(it->r,it->g,it->b,(1-((float)i)/10-(1-it->effectfade))*.25);
 197                         game->text.glPrint(it->x-((float)i),it->y,it->label.c_str(),0,1+((float)i)/70,640,480);
 198                     }
 199                 }
 200             }
 201             break;
 202         case MenuItem::MAPLABEL:
 203             game->text.glPrintOutlined(0.9,0,0,it->x,it->y,it->label.c_str(),0,0.6,640,480);
 204             break;
 205         case MenuItem::MAPLINE: {
 206             XYZ linestart=it->linestart;
 207             XYZ lineend=it->lineend;
 208             XYZ offset=lineend-linestart;
 209             XYZ fac=offset;
 210             Normalise(&fac);
 211             offset=DoRotation(offset,0,0,90);
 212             Normalise(&offset);
 213
 214             linestart+=fac*4*it->linestartsize;
 215             lineend-=fac*4*it->lineendsize;
 216
 217             glDisable(GL_TEXTURE_2D);
 218             glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
 219             glColor4f(it->r,it->g,it->b,1);
 220             glPushMatrix();
 221             glTranslatef(2,-5,0); //from old code
 222             glBegin(GL_QUADS);
 223             glVertex3f(linestart.x-offset.x*it->linestartsize,  linestart.y-offset.y*it->linestartsize,          0.0f);
 224             glVertex3f(linestart.x+offset.x*it->linestartsize,  linestart.y+offset.y*it->linestartsize,          0.0f);
 225             glVertex3f(lineend.x+offset.x*it->lineendsize,              lineend.y+offset.y*it->lineendsize, 0.0f);
 226             glVertex3f(lineend.x-offset.x*it->lineendsize,              lineend.y-offset.y*it->lineendsize, 0.0f);
 227             glEnd();
 228             glPopMatrix();
 229             glEnable(GL_TEXTURE_2D);
 230             } break;
 231         }
 232     }
 233 }
 234