///////////////////////////////////////////////////////////
//cTerrain
//Class for terrain
//Created March 10, 2004
///////////////////////////////////////////////////////////
#define MAP_X 32 // size of map along x-axis
#define MAP_Z 32 // size of map along z-axis
#define MAP_SCALE 20.0f // the scale of the terrain map
class cTerrain
{
public:
float terrain[MAP_X][MAP_Z][3];
void CreateTerrain(char* HeightMap);
void Render();
void CleanUp();
void WriteToFile(char *Path);
BITMAPINFOHEADER bitmapInfoHeader;
cTexture Texture;
Vector Position;
private:
unsigned char* imageData;
};
///////////////////////////////////////////////////////////
void cTerrain::CleanUp()
{
Texture.CleanUp();
}
///////////////////////////////////////////////////////////
void cTerrain::CreateTerrain(char* HeightMap)
{
imageData = LoadBitmapFile(HeightMap,&bitmapInfoHeader);
for(int z = 0; z < MAP_Z; z++)
{
for(int x = 0; x < MAP_X; x++)
{
terrain[x][z][0] = float(x)*MAP_SCALE;
terrain[x][z][1] = (float)imageData[(z*MAP_Z+x)*3];
terrain[x][z][2] = -float(z)*MAP_SCALE;
}
}
}
///////////////////////////////////////////////////////////
void cTerrain::Render()
{
glPushMatrix();
glTranslatef(Position.x,Position.y,Position.z);
Texture.Render();
for (int z = 0; z < MAP_Z-1; z++)
{
glBegin(GL_TRIANGLE_STRIP);
for (int x = 0; x < MAP_X-1; x++)
{
// draw vertex 0
glColor3f(terrain[x][z][1]/255.0f, terrain[x][z][1]/255.0f, terrain[x][z][1]/255.0f);
glTexCoord2f(0.0f, 0.0f);
glVertex3f(terrain[x][z][0], terrain[x][z][1], terrain[x][z][2]);
// draw vertex 1
glTexCoord2f(1.0f, 0.0f);
glColor3f(terrain[x+1][z][1]/255.0f, terrain[x+1][z][1]/255.0f, terrain[x+1][z][1]/255.0f);
glVertex3f(terrain[x+1][z][0], terrain[x+1][z][1], terrain[x+1][z][2]);
// draw vertex 2
glTexCoord2f(0.0f, 1.0f);
glColor3f(terrain[x][z+1][1]/255.0f, terrain[x][z+1][1]/255.0f, terrain[x][z+1][1]/255.0f);
glVertex3f(terrain[x][z+1][0], terrain[x][z+1][1], terrain[x][z+1][2]);
// draw vertex 3
glColor3f(terrain[x+1][z+1][1]/255.0f, terrain[x+1][z+1][1]/255.0f, terrain[x+1][z+1][1]/255.0f);
glTexCoord2f(1.0f, 1.0f);
glVertex3f(terrain[x+1][z+1][0], terrain[x+1][z+1][1], terrain[x+1][z+1][2]);
}
glEnd();
}
glPopMatrix();
glBindTexture(GL_TEXTURE_2D, 0);
}
///////////////////////////////////////////////////////////
void cTerrain::WriteToFile(char *Path)
{
}
///////////////////////////////////////////////////////////
Terrain Generater
Author
Okay I have a basic terrain generater done. All it does is load a height map, maps a default texture on the terrain and renders it the Terrains look very nice. But I would like to write the infomation to a text file so I can load it into some other programs I've tried several methods and the terrain is coming back missing almost all the points.
Here's the code for my Terrain
to get code boxes use the word source and /source inside of these brackets []
[ source ][ /source ]but without spaces
Would the fact that your "WriteToFile()" function is empty mean anything?
You have to remember that you''re unique, just like everybody else.
You have to remember that you''re unique, just like everybody else.
Author
Yes that''s the point. I''ve tried to write one but it didn''t work. I need help WRITING a WriteToFile() function. I''m not that stupid 
. But any way the way I tried was writing the terrain array to the file but when I loaded it, it was missing major parts of the terrain. I posted the source code of the class so you know what I need to save and have a better chance of coming up with ideas. Also for people not needing to save the terrain it is a rather nice class (for my small skill any way)
. But any way the way I tried was writing the terrain array to the file but when I loaded it, it was missing major parts of the terrain. I posted the source code of the class so you know what I need to save and have a better chance of coming up with ideas. Also for people not needing to save the terrain it is a rather nice class (for my small skill any way)
Well, if you just want to save the array as a RAW file, you can just do something like this:
Thats roughly it, I can''t remember the exact parameter lists or anything for the functions, but it can''t be that far off. All you''re doing is saving the image data to a file.
You have to remember that you''re unique, just like everybody else.
void WriteFile( char *path ){ ofstream file( path ); if( !file ) return; file.write( image_data, MAP_X * MAP_Z ); file.close();}Thats roughly it, I can''t remember the exact parameter lists or anything for the functions, but it can''t be that far off. All you''re doing is saving the image data to a file.
You have to remember that you''re unique, just like everybody else.
This topic is closed to new replies.
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