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Making a map file?

Started by FireNuke Nov 26, 2004 at 11:23 AM 1 replies 550+ views

Original Post

Nov 26, 2004 at 11:23 AM

Okay, so I want to make a simple (very simple) map file. How would I go about doing that? Legend: 0 = Tile 0 (water loc: 0x32) 1 = Tile 1 (grass loc: 0x64) 2 = Tile 2 (gravel loc: 0x96) Mapfile: 20,15 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 How would assign tild ids? How would I read lines? etc...

Doggan

Nov 26, 2004 at 11:53 AM

Well, the first step is to read the values of the file into an array in your application. Where input_file is an ifstream, and temp is an integer.

	for ( all the rows in your file ) {		for ( all the columns in your file ) {			input_file >> temp;			YourMap[ y ][ x ] = temp;		}	}

Now you have everything you need. Hardcoded in your game, you should have each of the tiles you use in some texture[] array, so that you can reference them as such (texture[0] is grass, texture[1] is water, etc..)

In you drawing routine, then, you loop through each element of your 2d YourMap array, and draw the corresponding tile.

	for ( all the rows y ) {		for ( all the columns x ) {			int tile = YourMap[ y ][ x ];			glBindTexture(GL_TEXTURE_2D, texture[ tile ] ); // OpenGL example.			// draw it here.		}	}

That's the general idea. If you need more help reading lines and such from a file, do a forum search as there are tons of posts.

unfinished

Nov 27, 2004 at 1:03 PM

Sound like your doing it same way as me

read map section into its storage area (LevelData)

My Textures start at 1 just modify the -48 to your needs

glBindTexture(GL_TEXTURE_2D, texture[LevelData[n++]-48]); // Select Our Texture

int LevelBoxDraw(){	int	n=0;		glTranslatef(-42.0f,-28.0f,-74.0f);					// Move Left 1.5 Units And Into The Screen 6.0	glColor3f(1.0f,1.0f,1.0f);							// Set The Color To Blue One Time Only	glBindTexture(GL_TEXTURE_2D, texture[0]);			// Select Our Texture		for (float y = 0; y <= 14; y++)				//   Add one to take into account the loop	{		for (float x = 0; x <= 19; x++)		{//			glBindTexture(GL_TEXTURE_2D, texture[0]);			// Select Our Texture			glBindTexture(GL_TEXTURE_2D, texture[LevelData[n++]-48]);			// Select Our Texture			glTranslatef(4.0f,0.0f,0.0f);						// Move Right 3 Units			glBegin(GL_QUADS);									// Draw A Quad			glTexCoord2f(0.0f, 0.0f); glVertex3f(-2.0f, -2.0f,  1.0f);	// Bottom Left Of The Texture and Quad			glTexCoord2f(1.0f, 0.0f); glVertex3f( 2.0f, -2.0f,  1.0f);	// Bottom Right Of The Texture and Quad			glTexCoord2f(1.0f, 1.0f); glVertex3f( 2.0f,  2.0f,  1.0f);	// Top Right Of The Texture and Quad			glTexCoord2f(0.0f, 1.0f); glVertex3f(-2.0f,  2.0f,  1.0f);	// Top Left Of The Texture and Quad			glEnd();											// Done Drawing The Quad		}		glTranslatef(-x*4,4.0,0.0f);						// Move Right x Units		glColor3f(1.0f,1.0f,1.0f);							// Set The Color To Time Only	}	return	TRUE;}

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