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     float linestartsize;
  21     float lineendsize;
  22
  23     void init(MenuItemType _type, int _id, const string& _label, int _texture, MBCallback _cb,
  24             int _x, int _y, int _w, int _h, float _r, float _g, float _b,
  25             float _linestartsize=1, float _lineendsize=1){
  26         type=_type;
  27         id=_id;
  28         label=_label;
  29         texture=_texture;
  30         cb=_cb;
  31         x=_x; y=_y; w=_w; h=_h;
  32         r=_r; g=_g; b=_b;
  33         effectfade=0;
  34         linestartsize=_linestartsize;
  35         lineendsize=_lineendsize;
  36         if(type==MenuItem::BUTTON){
  37             if(w==-1)
  38                 w=label.length()*10;
  39             if(h==-1)
  40                 h=20;
  41         }
  42     }
  43 };
  44
  45 vector<MenuItem> items;
  46
  47
  48
  49
  50 void Menu::GUITick(){
  51     for(vector<MenuItem>::iterator it=items.begin();it!=items.end();it++){
  52                 if(it->id==Game::selected){
  53                         it->effectfade+=multiplier*5;
  54                         if(it->effectfade>1)
  55                 it->effectfade=1;
  56                 }else{
  57                         it->effectfade-=multiplier*5;
  58                         if(it->effectfade<0)
  59                 it->effectfade=0;
  60                 }
  61     }
  62 }
  63
  64 void Menu::clearMenu(){
  65     items.clear();
  66 }
  67
  68 void Menu::addLabel(int id,const string& label,int x,int y){
  69     items.push_back(MenuItem());
  70     items.back().init(MenuItem::LABEL,id,label,0,NULL,x,y,-1,-1,1,0,0);
  71 }
  72 void Menu::addButton(int id,const string& label,MBCallback cb,int x,int y,int w,int h,float r,float g,float b){
  73     items.push_back(MenuItem());
  74     items.back().init(MenuItem::BUTTON,id,label,0,cb,x,y,w,h,r,g,b);
  75 }
  76 void Menu::addImage(int id,int texture,int x,int y,int w,int h){
  77     items.push_back(MenuItem());
  78     items.back().init(MenuItem::IMAGE,id,"",texture,NULL,x,y,w,h,1,1,1);
  79 }
  80 void Menu::addImageButton(int id,int texture,MBCallback cb,int x,int y,int w,int h,float r,float g,float b){
  81     items.push_back(MenuItem());
  82     items.back().init(MenuItem::IMAGEBUTTON,id,"",texture,cb,x,y,w,h,r,g,b);
  83 }
  84 void Menu::addMapLine(int x, int y, int w, int h, float startsize, float endsize, float r,float g,float b){
  85     items.push_back(MenuItem());
  86     items.back().init(MenuItem::MAPLINE,-1,"",0,NULL,x,y,w,h,r,g,b,startsize,endsize);
  87 }
  88 void Menu::addMapMarker(int id,int texture,MBCallback cb,int x,int y,int w,int h,float r,float g,float b){
  89     items.push_back(MenuItem());
  90     items.back().init(MenuItem::MAPMARKER,id,"",texture,cb,x,y,w,h,r,g,b);
  91 }
  92
  93 void Menu::setMapItem(int id){
  94     for(vector<MenuItem>::iterator it=items.begin();it!=items.end();it++)
  95         if(it->id==id){
  96             if(it->type==MenuItem::LABEL)
  97                 it->type=MenuItem::MAPLABEL;
  98             break;
  99         }
 100 }
 101
 102 void Menu::setButtonText(int id,const string& label){
 103     for(vector<MenuItem>::iterator it=items.begin();it!=items.end();it++)
 104         if(it->id==id){
 105             it->label=label;
 106             it->w=it->label.length()*10;
 107             break;
 108         }
 109 }
 110
 111 void Menu::setButtonText(int id,const string& label,int x,int y,int w,int h){
 112     for(vector<MenuItem>::iterator it=items.begin();it!=items.end();it++)
 113         if(it->id==id){
 114             it->label=label;
 115             it->x=x;
 116             it->y=y;
 117             if(w==-1)
 118                 it->w=it->label.length()*10;
 119             if(h==-1)
 120                 it->h=20;
 121             break;
 122         }
 123 }
 124
 125 int Menu::getSelected(int mousex, int mousey){
 126     for(vector<MenuItem>::iterator it=items.begin();it!=items.end();it++)
 127         if(it->type==MenuItem::BUTTON || it->type==MenuItem::IMAGEBUTTON || it->type==MenuItem::MAPMARKER){
 128             int mx=mousex;
 129             int my=mousey;
 130             if(it->type==MenuItem::MAPMARKER){
 131                 mx-=1;
 132                 my+=2;
 133             }
 134             if(mx>=it->x && mx<it->x+it->w && my>=it->y && my<it->y+it->h)
 135                 return it->id;
 136         }
 137     return -1;
 138 }
 139
 140 void Menu::drawItems(){
 141     glEnable(GL_TEXTURE_2D);
 142     glEnable(GL_ALPHA_TEST);
 143     glEnable(GL_BLEND);
 144     for(vector<MenuItem>::iterator it=items.begin();it!=items.end();it++){
 145         switch(it->type){
 146         case MenuItem::IMAGE:
 147         case MenuItem::IMAGEBUTTON:
 148         case MenuItem::MAPMARKER:
 149             glColor4f(it->r,it->g,it->b,1);
 150             glPushMatrix();
 151             if(it->type==MenuItem::MAPMARKER){
 152                 glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
 153                 glTranslatef(2,-5,0); //from old code
 154             }else{
 155                 glBlendFunc(GL_SRC_ALPHA,GL_ONE);
 156             }
 157             glBindTexture(GL_TEXTURE_2D,it->texture);
 158                         glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
 159                         glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
 160             glBegin(GL_QUADS);
 161             glTexCoord2f(0,0);
 162             glVertex3f(it->x,it->y,0);
 163             glTexCoord2f(1,0);
 164             glVertex3f(it->x+it->w,it->y,0);
 165             glTexCoord2f(1,1);
 166             glVertex3f(it->x+it->w,it->y+it->h,0);
 167             glTexCoord2f(0,1);
 168             glVertex3f(it->x,it->y+it->h,0);
 169             glEnd();
 170             if(it->type!=MenuItem::IMAGE){
 171                 //mouseover highlight
 172                 for(int i=0;i<10;i++){
 173                     if(1-((float)i)/10-(1-it->effectfade)>0){
 174                         glColor4f(it->r,it->g,it->b,(1-((float)i)/10-(1-it->effectfade))*.25);
 175                         glBegin(GL_QUADS);
 176                         glTexCoord2f(0,0);
 177                         glVertex3f(it->x-((float)i)*1/2, it->y-((float)i)*1/2, 0);
 178                         glTexCoord2f(1,0);
 179                         glVertex3f(it->x+it->w+((float)i)*1/2, it->y-((float)i)*1/2, 0);
 180                         glTexCoord2f(1,1);
 181                         glVertex3f(it->x+it->w+((float)i)*1/2, it->y+it->h+((float)i)*1/2, 0);
 182                         glTexCoord2f(0,1);
 183                         glVertex3f(it->x-((float)i)*1/2, it->y+it->h+((float)i)*1/2, 0);
 184                         glEnd();
 185                     }
 186                 }
 187             }
 188             glPopMatrix();
 189             break;
 190         case MenuItem::LABEL:
 191         case MenuItem::BUTTON:
 192             glColor4f(it->r,it->g,it->b,1);
 193             glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
 194             Game::text->glPrint(it->x,it->y,it->label.c_str(),0,1,640,480);
 195             if(it->type!=MenuItem::LABEL){
 196                 //mouseover highlight
 197                 glBlendFunc(GL_SRC_ALPHA,GL_ONE);
 198                 for(int i=0;i<15;i++){
 199                     if(1-((float)i)/15-(1-it->effectfade)>0){
 200                         glColor4f(it->r,it->g,it->b,(1-((float)i)/10-(1-it->effectfade))*.25);
 201                         Game::text->glPrint(it->x-((float)i),it->y,it->label.c_str(),0,1+((float)i)/70,640,480);
 202                     }
 203                 }
 204             }
 205             break;
 206         case MenuItem::MAPLABEL:
 207             Game::text->glPrintOutlined(0.9,0,0,it->x,it->y,it->label.c_str(),0,0.6,640,480);
 208             break;
 209         case MenuItem::MAPLINE: {
 210             XYZ linestart;
 211             linestart.x=it->x;
 212             linestart.y=it->y;
 213             linestart.z=0;
 214             XYZ lineend;
 215             lineend.x=it->x+it->w;
 216             lineend.y=it->y+it->h;
 217             lineend.z=0;
 218             XYZ offset=lineend-linestart;
 219             XYZ fac=offset;
 220             Normalise(&fac);
 221             offset=DoRotation(offset,0,0,90);
 222             Normalise(&offset);
 223
 224             linestart+=fac*4*it->linestartsize;
 225             lineend-=fac*4*it->lineendsize;
 226
 227             glDisable(GL_TEXTURE_2D);
 228             glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
 229             glColor4f(it->r,it->g,it->b,1);
 230             glPushMatrix();
 231             glTranslatef(2,-5,0); //from old code
 232             glBegin(GL_QUADS);
 233             glVertex3f(linestart.x-offset.x*it->linestartsize,  linestart.y-offset.y*it->linestartsize,          0.0f);
 234             glVertex3f(linestart.x+offset.x*it->linestartsize,  linestart.y+offset.y*it->linestartsize,          0.0f);
 235             glVertex3f(lineend.x+offset.x*it->lineendsize,              lineend.y+offset.y*it->lineendsize, 0.0f);
 236             glVertex3f(lineend.x-offset.x*it->lineendsize,              lineend.y-offset.y*it->lineendsize, 0.0f);
 237             glEnd();
 238             glPopMatrix();
 239             glEnable(GL_TEXTURE_2D);
 240             } break;
 241         }
 242     }
 243 }
 244