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 text;
  14     int texture;
  15     int x,y,w,h;
  16     float r,g,b;
  17     float effectfade;
  18
  19     float linestartsize;
  20     float lineendsize;
  21
  22     void init(MenuItemType _type, int _id, const string& _text, int _texture,
  23             int _x, int _y, int _w, int _h, float _r, float _g, float _b,
  24             float _linestartsize=1, float _lineendsize=1){
  25         type=_type;
  26         id=_id;
  27         text=_text;
  28         texture=_texture;
  29         x=_x; y=_y; w=_w; h=_h;
  30         r=_r; g=_g; b=_b;
  31         effectfade=0;
  32         linestartsize=_linestartsize;
  33         lineendsize=_lineendsize;
  34         if(type==MenuItem::BUTTON){
  35             if(w==-1)
  36                 w=text.length()*10;
  37             if(h==-1)
  38                 h=20;
  39         }
  40     }
  41 };
  42
  43 vector<MenuItem> items;
  44
  45
  46
  47
  48 void Menu::clearMenu(){
  49     items.clear();
  50 }
  51
  52 void Menu::addLabel(int id,const string& text,int x,int y,float r,float g,float b){
  53     items.push_back(MenuItem());
  54     items.back().init(MenuItem::LABEL,id,text,0,x,y,-1,-1,r,g,b);
  55 }
  56 void Menu::addButton(int id,const string& text,int x,int y,float r,float g,float b){
  57     items.push_back(MenuItem());
  58     items.back().init(MenuItem::BUTTON,id,text,0,x,y,-1,-1,r,g,b);
  59 }
  60 void Menu::addImage(int id,int texture,int x,int y,int w,int h,float r,float g,float b){
  61     items.push_back(MenuItem());
  62     items.back().init(MenuItem::IMAGE,id,"",texture,x,y,w,h,r,g,b);
  63 }
  64 void Menu::addButtonImage(int id,int texture,int x,int y,int w,int h,float r,float g,float b){
  65     items.push_back(MenuItem());
  66     items.back().init(MenuItem::IMAGEBUTTON,id,"",texture,x,y,w,h,r,g,b);
  67 }
  68 void Menu::addMapLine(int x, int y, int w, int h, float startsize, float endsize, float r,float g,float b){
  69     items.push_back(MenuItem());
  70     items.back().init(MenuItem::MAPLINE,-1,"",0,x,y,w,h,r,g,b,startsize,endsize);
  71 }
  72 void Menu::addMapMarker(int id,int texture,int x,int y,int w,int h,float r,float g,float b){
  73     items.push_back(MenuItem());
  74     items.back().init(MenuItem::MAPMARKER,id,"",texture,x,y,w,h,r,g,b);
  75 }
  76 void Menu::addMapLabel(int id,const string& text,int x,int y,float r,float g,float b){
  77     items.push_back(MenuItem());
  78     items.back().init(MenuItem::MAPLABEL,id,text,0,x,y,-1,-1,r,g,b);
  79 }
  80
  81 void Menu::setText(int id,const string& text){
  82     for(vector<MenuItem>::iterator it=items.begin();it!=items.end();it++)
  83         if(it->id==id){
  84             it->text=text;
  85             it->w=it->text.length()*10;
  86             break;
  87         }
  88 }
  89
  90 void Menu::setText(int id,const string& text,int x,int y,int w,int h){
  91     for(vector<MenuItem>::iterator it=items.begin();it!=items.end();it++)
  92         if(it->id==id){
  93             it->text=text;
  94             it->x=x;
  95             it->y=y;
  96             if(w==-1)
  97                 it->w=it->text.length()*10;
  98             if(h==-1)
  99                 it->h=20;
 100             break;
 101         }
 102 }
 103
 104 int Menu::getSelected(int mousex, int mousey){
 105     for(vector<MenuItem>::iterator it=items.begin();it!=items.end();it++)
 106         if(it->type==MenuItem::BUTTON || it->type==MenuItem::IMAGEBUTTON || it->type==MenuItem::MAPMARKER){
 107             int mx=mousex;
 108             int my=mousey;
 109             if(it->type==MenuItem::MAPMARKER){
 110                 mx-=1;
 111                 my+=2;
 112             }
 113             if(mx>=it->x && mx<it->x+it->w && my>=it->y && my<it->y+it->h)
 114                 return it->id;
 115         }
 116     return -1;
 117 }
 118
 119 void GUITick(){
 120     for(vector<MenuItem>::iterator it=items.begin();it!=items.end();it++){
 121                 if(it->id==Game::selected){
 122                         it->effectfade+=multiplier*5;
 123                         if(it->effectfade>1)
 124                 it->effectfade=1;
 125                 }else{
 126                         it->effectfade-=multiplier*5;
 127                         if(it->effectfade<0)
 128                 it->effectfade=0;
 129                 }
 130     }
 131 }
 132
 133 void Menu::drawItems(){
 134     GUITick();
 135     glEnable(GL_TEXTURE_2D);
 136     glEnable(GL_ALPHA_TEST);
 137     glEnable(GL_BLEND);
 138     for(vector<MenuItem>::iterator it=items.begin();it!=items.end();it++){
 139         switch(it->type){
 140         case MenuItem::IMAGE:
 141         case MenuItem::IMAGEBUTTON:
 142         case MenuItem::MAPMARKER:
 143             glColor4f(it->r,it->g,it->b,1);
 144             glPushMatrix();
 145             if(it->type==MenuItem::MAPMARKER){
 146                 glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
 147                 glTranslatef(2.5,-4.5,0); //from old code
 148             }else{
 149                 glBlendFunc(GL_SRC_ALPHA,GL_ONE);
 150             }
 151             glBindTexture(GL_TEXTURE_2D,it->texture);
 152                         glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
 153                         glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
 154             glBegin(GL_QUADS);
 155             glTexCoord2f(0,0);
 156             glVertex3f(it->x,it->y,0);
 157             glTexCoord2f(1,0);
 158             glVertex3f(it->x+it->w,it->y,0);
 159             glTexCoord2f(1,1);
 160             glVertex3f(it->x+it->w,it->y+it->h,0);
 161             glTexCoord2f(0,1);
 162             glVertex3f(it->x,it->y+it->h,0);
 163             glEnd();
 164             if(it->type!=MenuItem::IMAGE){
 165                 //mouseover highlight
 166                 for(int i=0;i<10;i++){
 167                     if(1-((float)i)/10-(1-it->effectfade)>0){
 168                         glColor4f(it->r,it->g,it->b,(1-((float)i)/10-(1-it->effectfade))*.25);
 169                         glBegin(GL_QUADS);
 170                         glTexCoord2f(0,0);
 171                         glVertex3f(it->x-((float)i)*1/2, it->y-((float)i)*1/2, 0);
 172                         glTexCoord2f(1,0);
 173                         glVertex3f(it->x+it->w+((float)i)*1/2, it->y-((float)i)*1/2, 0);
 174                         glTexCoord2f(1,1);
 175                         glVertex3f(it->x+it->w+((float)i)*1/2, it->y+it->h+((float)i)*1/2, 0);
 176                         glTexCoord2f(0,1);
 177                         glVertex3f(it->x-((float)i)*1/2, it->y+it->h+((float)i)*1/2, 0);
 178                         glEnd();
 179                     }
 180                 }
 181             }
 182             glPopMatrix();
 183             break;
 184         case MenuItem::LABEL:
 185         case MenuItem::BUTTON:
 186             glColor4f(it->r,it->g,it->b,1);
 187             glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
 188             Game::text->glPrint(it->x,it->y,it->text.c_str(),0,1,640,480);
 189             if(it->type!=MenuItem::LABEL){
 190                 //mouseover highlight
 191                 glBlendFunc(GL_SRC_ALPHA,GL_ONE);
 192                 for(int i=0;i<15;i++){
 193                     if(1-((float)i)/15-(1-it->effectfade)>0){
 194                         glColor4f(it->r,it->g,it->b,(1-((float)i)/10-(1-it->effectfade))*.25);
 195                         Game::text->glPrint(it->x-((float)i),it->y,it->text.c_str(),0,1+((float)i)/70,640,480);
 196                     }
 197                 }
 198             }
 199             break;
 200         case MenuItem::MAPLABEL:
 201             Game::text->glPrintOutlined(0.9,0,0,it->x,it->y,it->text.c_str(),0,0.6,640,480);
 202             break;
 203         case MenuItem::MAPLINE: {
 204             XYZ linestart;
 205             linestart.x=it->x;
 206             linestart.y=it->y;
 207             linestart.z=0;
 208             XYZ lineend;
 209             lineend.x=it->x+it->w;
 210             lineend.y=it->y+it->h;
 211             lineend.z=0;
 212             XYZ offset=lineend-linestart;
 213             XYZ fac=offset;
 214             Normalise(&fac);
 215             offset=DoRotation(offset,0,0,90);
 216             Normalise(&offset);
 217
 218             linestart+=fac*4*it->linestartsize;
 219             lineend-=fac*4*it->lineendsize;
 220
 221             glDisable(GL_TEXTURE_2D);
 222             glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
 223             glColor4f(it->r,it->g,it->b,1);
 224             glPushMatrix();
 225             glTranslatef(2,-5,0); //from old code
 226             glBegin(GL_QUADS);
 227             glVertex3f(linestart.x-offset.x*it->linestartsize,  linestart.y-offset.y*it->linestartsize,          0.0f);
 228             glVertex3f(linestart.x+offset.x*it->linestartsize,  linestart.y+offset.y*it->linestartsize,          0.0f);
 229             glVertex3f(lineend.x+offset.x*it->lineendsize,              lineend.y+offset.y*it->lineendsize, 0.0f);
 230             glVertex3f(lineend.x-offset.x*it->lineendsize,              lineend.y-offset.y*it->lineendsize, 0.0f);
 231             glEnd();
 232             glPopMatrix();
 233             glEnable(GL_TEXTURE_2D);
 234             } break;
 235         }
 236     }
 237 }
 238