Changeset 3200 in orxonox.OLD for orxonox/trunk

Timestamp:

Dec 17, 2004, 11:36:49 AM (20 years ago)

Author:

bensch

Message:

orxonox/trunk: a little bit more dynamic Mountain-creation (dave-algorithm)

File:

• orxonox/trunk/src/world.cc (modified) (2 diffs)

orxonox/trunk/src/world.cc

@@ -190 +190 @@
   glColor3f(1.0,0,0);
   glBegin(GL_QUADS);
-  float height [500][100];
-  Vector normal_vectors[500][100];
-  float size = 2;
-  
-  
-  for ( int i = 0; i<400; i+=1)
-    {
-      for (int j = 0; j<100;j+=1)
-        {
-            //height[i][j] = rand()/20046 + (j-25)*(j-25)/30;
+
+  int sizeX = 100;
+  int sizeY = 80;
+  float length = 1000;
+  float width = 200;
+  float widthX = float (length /sizeX);
+  float widthY = float (width /sizeY);
+  
+  float height [sizeX][sizeY];
+  Vector normal_vectors[sizeX][sizeY];
+  
+  
+  for ( int i = 0; i<sizeX-1; i+=1)
+    for (int j = 0; j<sizeY-1;j+=1)
+      //height[i][j] = rand()/20046 + (j-25)*(j-25)/30;
 #ifdef __WIN32__
-          height[i][j]=(sin((float)j/3)*rand()*i/182400)*.2;
+      height[i][j]=(sin((float)j/3)*rand()*i/182400)*.5;
 #else
-          height[i][j]=(sin((float)j/3)*rand()*(long)i/6282450500.0)*.2;
+      height[i][j]=(sin((float)j/3)*rand()*(long)i/6282450500.0)*.5;
 #endif
-        }
-    }
+
   //Die Hügel ein wenig glätten
   for (int h=1; h<2;h++)
-    for (int i=1;i<399 ;i+=1 )
-      for(int j=1;j<99;j+=1)
+    for (int i=1;i<sizeX-2 ;i+=1 )
+      for(int j=1;j<sizeY-2;j+=1)
         height[i][j]=(height[i+1][j]+height[i][j+1]+height[i-1][j]+height[i][j-1])/4;
   
   //Berechnung von normalen Vektoren
-  
-  for(int i=1;i<399;i+=1){
-    for(int j=1;j<99 ;j+=1)
-      
+
+  for(int i=1;i<sizeX-2;i+=1)
+    for(int j=1;j<sizeY-2 ;j+=1)
       {
-        Vector* v1 = new Vector (size*i,size*(j-25)-50,height[i][j]-20 );
-        Vector* v2 = new Vector (size*(i+1),size*(j-25)-50,height[i+1][j]-20);
-        Vector* v3 = new Vector (size*(i),size*(j-24)-50,height[i][j+1]-20);
-        Vector* v4 = new Vector (size*(i-1),size*(j-25)-50,height[i-1][j]-20);
-        Vector* v5 = new Vector (size*(i),size*(j-26)-50,height[i][j-1]-20);
+        Vector v1 = Vector (widthX*(1),      widthY*(j)  ,      height[i][j]);
+        Vector v2 = Vector (widthX*(i-1),    widthY*(j)  ,      height[i-1][j]);
+        Vector v3 = Vector (widthX*(i),      widthY*(j+1),      height[i][j+1]);
+        Vector v4 = Vector (widthX*(i+1),    widthY*(j),        height[i+1][j]);
+        Vector v5 = Vector (widthX*(i),      widthY*(j-1),      height[i][j-1]);
         
-        Vector c1 = *v1 - *v2;
-        Vector c2 = *v1 - *v3;
-        Vector c3= *v1 - *v4;
-        Vector c4 = *v1 - *v5;
-        normal_vectors[i][j]=c1.cross(*v1-*v3)+c2.cross(*v1-*v4)+c3.cross(*v1-*v5)+c4.cross(*v1-*v2);
+        Vector c1 = v2 - v1;
+        Vector c2 = v3 - v1;
+        Vector c3=  v4 - v1;
+        Vector c4 = v5 - v1;
+        Vector zero = Vector (0,0,0);
+        normal_vectors[i][j]=c1.cross(v4-v2)+c2.cross(v1-v3)+c3.cross(v2-v4)+c4.cross(v3-v1);
         normal_vectors[i][j].normalize();
-        
-        
-        
-        
-        }
-  }
+      }
+
   int snowheight=3;
-  for ( int i = 0; i<400; i+=1)
-    {
-      for (int j = 0; j<100;j+=1)
-        {         
-          Vector* v1 = new Vector (size*i,        size*(j-25)-50,      height[i][j]-20 );
-          Vector* v2 = new Vector (size*(i+1),    size*(j-25)-50,      height[i+1][j]-20);
-          Vector* v3 = new Vector (size*(i+1),    size*(j-24)-50,  height[i+1][j+1]-20);
-          Vector* v4 = new Vector (size*(i),        size*(j-24)-50,  height[i][j+1]-20);
-          float a[3];
-          if(height[i][j]<snowheight){
-            a[0]=0;
-            a[1]=1.0-height[i][j]/10-.3;
-            a[2]=0;
-            glMaterialfv(GL_FRONT,GL_DIFFUSE,a);
-          }
-          else{
+  for ( int i = 0; i<sizeX; i+=1)
+    for (int j = 0; j<sizeY;j+=1)
+      {   
+        Vector v1 = Vector (widthX*(i),      widthY*(j)  -width/2,      height[i][j]-20 );
+        Vector v2 = Vector (widthX*(i+1),    widthY*(j)  -width/2,      height[i+1][j]-20);
+        Vector v3 = Vector (widthX*(i+1),    widthY*(j+1)-width/2,    height[i+1][j+1]-20);
+        Vector v4 = Vector (widthX*(i),      widthY*(j+1)-width/2,    height[i][j+1]-20);
+        float a[3];
+        if(height[i][j]<snowheight){
+          a[0]=0;
+          a[1]=1.0-height[i][j]/10-.3;
+          a[2]=0;
+          glMaterialfv(GL_FRONT,GL_DIFFUSE,a);
+        }
+        else{
             a[0]=1.0;
             a[1]=1.0;
@@ -259 +258 @@
             glMaterialfv(GL_FRONT,GL_DIFFUSE,a);
             
-          }
-                glNormal3f(normal_vectors[i][j].x, normal_vectors[i][j].y, normal_vectors[i][j].z);
-                glVertex3f(v1->x, v1->y, v1->z);
-                if(height[i+1][j]<snowheight){
-                  a[0]=0;
-                  a[1] =1.0-height[i+1][j]/10-.3;
-                  a[2]=0;
-                  glMaterialfv(GL_FRONT,GL_DIFFUSE,a);
-                }
-                else{
-                  a[0]=1.0;
-                  a[1]=1.0;
-                  a[2]=1.0;
-                  glMaterialfv(GL_FRONT,GL_DIFFUSE,a);
-                  
-                }
-                glNormal3f(normal_vectors[i+1][j].x, normal_vectors[i+1][j].y, normal_vectors[i+1][j].z);
-                glVertex3f(v2->x, v2->y, v2->z);
-                if(height[i+1][j+1]<snowheight){
-                  a[0]=0;
-                  a[1] =1.0-height[i+1][j+1]/10-.3;
-                  a[2]=0;
-                  glMaterialfv(GL_FRONT,GL_DIFFUSE,a);
-                }
-                else{
-                  a[0]=1.0;
-                  a[1]=1.0;
-                  a[2]=1.0;
-                  glMaterialfv(GL_FRONT,GL_DIFFUSE,a);
-                  
-                  
-                }
-                glNormal3f(normal_vectors[i+1][j+1].x, normal_vectors[i+1][j+1].y, normal_vectors[i+1][j+1].z);
-                glVertex3f(v3->x, v3->y, v3->z);
-                if(height[i][j+1]<snowheight){
-                  a[0]=0;
-                  a[1] =1.0-height[i+1][j+1]/10-.3;
-                  a[2]=0;
-                  glMaterialfv(GL_FRONT,GL_DIFFUSE,a);
-                }
-                else{
-                  a[0]=1.0;
-                  a[1]=1.0;
-                  a[2]=1.0;
-                  glMaterialfv(GL_FRONT,GL_DIFFUSE,a);
-                }
-                glNormal3f(normal_vectors[i][j+1].x, normal_vectors[i][j+1].y, normal_vectors[i][j+1].z);
-                glVertex3f(v4->x, v4->y, v4->z);
-                
-        }
-    }
+        }
+        glNormal3f(normal_vectors[i][j].x, normal_vectors[i][j].y, normal_vectors[i][j].z);
+        glVertex3f(v1.x, v1.y, v1.z);
+        if(height[i+1][j]<snowheight){
+          a[0]=0;
+          a[1] =1.0-height[i+1][j]/10-.3;
+          a[2]=0;
+          glMaterialfv(GL_FRONT,GL_DIFFUSE,a);
+        }
+        else{
+          a[0]=1.0;
+          a[1]=1.0;
+          a[2]=1.0;
+          glMaterialfv(GL_FRONT,GL_DIFFUSE,a);
+          
+        }
+        glNormal3f(normal_vectors[i+1][j].x, normal_vectors[i+1][j].y, normal_vectors[i+1][j].z);
+        glVertex3f(v2.x, v2.y, v2.z);
+        if(height[i+1][j+1]<snowheight){
+          a[0]=0;
+          a[1] =1.0-height[i+1][j+1]/10-.3;
+          a[2]=0;
+          glMaterialfv(GL_FRONT,GL_DIFFUSE,a);
+        }
+        else{
+          a[0]=1.0;
+          a[1]=1.0;
+          a[2]=1.0;
+          glMaterialfv(GL_FRONT,GL_DIFFUSE,a);
+          
+          
+        }
+        glNormal3f(normal_vectors[i+1][j+1].x, normal_vectors[i+1][j+1].y, normal_vectors[i+1][j+1].z);
+        glVertex3f(v3.x, v3.y, v3.z);
+        if(height[i][j+1]<snowheight){
+          a[0]=0;
+          a[1] =1.0-height[i+1][j+1]/10-.3;
+          a[2]=0;
+          glMaterialfv(GL_FRONT,GL_DIFFUSE,a);
+        }
+        else{
+          a[0]=1.0;
+          a[1]=1.0;
+          a[2]=1.0;
+          glMaterialfv(GL_FRONT,GL_DIFFUSE,a);
+        }
+        glNormal3f(normal_vectors[i][j+1].x, normal_vectors[i][j+1].y, normal_vectors[i][j+1].z);
+        glVertex3f(v4.x, v4.y, v4.z);
+        
+      }
   glEnd();
   /*