Problem with trying to add lighting to a level loading 'engine'

OpenGL OpenGL: Basic Coding
1

Hey, i’ve been having problems adding some light to NeHe’s lesson 10 (i’m further than that, just didn’t play with that code until now.), no i’m not just adding a little light, i’m trying to load the light from a level file (world.txt).

I get these errors when compiling with Dev-C++:

  • C:\Documents and Settings\Joost\My Documents\Mijn ontvangen bestanden\forumfun\lesson10\lesson10.cpp In function `void SetupWorld()’:
  • 132 C:\Documents and Settings\Joost\My Documents\Mijn ontvangen bestanden\forumfun\lesson10\lesson10.cpp invalid initializer
  • C:\Documents and Settings\Joost\My Documents\Mijn ontvangen bestanden\forumfun\lesson10\Makefile.win [Build Error] [lesson10.o] Error 1

This is my function ‘SetupWorld()’:

void SetupWorld()
{
	float x, y, z, u, v;
	int numtriangles;
	FILE *filein;
	FILE *filein2;
	char oneline[255];
	filein = fopen("data/world.txt", "rt");				// File To Load World Data From
	filein2 = fopen("data/world.txt", "rt");
	readstr(filein,oneline);
	readlight(filein2,oneline2);
	char nothing;
	float light1;
	float light2;
	float light3;
	float light4;
	float light5;
	float light6;
	float light7;
	float light8;
	float light9;
	float light10;
	float light11;
	float light12;
	sscanf(oneline, "NUMPOLLIES %d
", &numtriangles);
	sscanf(oneline2, "%c %f %f %f %f %f %f %f %f %f %f %f %f ", &nothing, &light1, &light2, &light3, &light4, &light5, &light6, &light7, &light8, &light9, &light10, &light11, &light12);

	sector1.triangle = new TRIANGLE[numtriangles];
	sector1.numtriangles = numtriangles;
	for (int loop = 0; loop < numtriangles; loop++)
	{
		for (int vert = 0; vert < 3; vert++)
		{
			readstr(filein,oneline);
			sscanf(oneline, "%f %f %f %f %f", &x, &y, &z, &u, &v);
			sector1.triangle[loop].vertex[vert].x = x;
			sector1.triangle[loop].vertex[vert].y = y;
			sector1.triangle[loop].vertex[vert].z = z;
			sector1.triangle[loop].vertex[vert].u = u;
			sector1.triangle[loop].vertex[vert].v = v;
		}
	}
	
	GLfloat LightAmbient[]= (light1, light2, light3, light4);
	GLfloat LightDiffuse[]= { light5, light6, light7, light8 };				 // Diffuse Light Values ( NEW )
	GLfloat LightPosition[]= { light9, light10, light11, light12};
 
	glEnable(GL_LIGHT1);								// Quick And Dirty Lighting (Assumes 	Light0 Is Set Up)
	glEnable(GL_LIGHTING);								// Enable Lighting
	glEnable(GL_COLOR_MATERIAL);						// Enable Material Coloring				 // Light Position ( NEW )

	glLightfv(GL_LIGHT1, GL_AMBIENT, LightAmbient);				// Setup The Ambient Light
	glLightfv(GL_LIGHT1, GL_DIFFUSE, LightDiffuse);				// Setup The Diffuse Light
	glLightfv(GL_LIGHT1, GL_POSITION,LightPosition);			// Position The Light
	fclose(filein);
	return;
}

This is the structure of light lines in my world.txt file:

l 0.5 0.5 0.5 1.0 1.0 1.0 1.0 1.0 0.0 0.0 2.0 1.0
// ambient 1, 2, 3, 4 diffuse 1, 2, 3 4, position 1, 2, 3, 4

Please tell me what is causing these errors.
Cheers.

2

Anyone?

3

Well your compiler tells you exactly whats wrong and in which line too (132).

Just change this:

GLfloat LightAmbient[]= (light1, light2, light3, light4);

into this:

GLfloat LightAmbient[]= {light1, light2, light3, light4};

and the error will go away. Listen to your compiler he knows the truth :wink: .

4

Oh thanks, can’t believe i didn’t think of that. :confused: :slight_smile: