XcodeGLUT tutorial problem :(
Post: #1
Can someone tell me what I did wrong with this code?
I got 33 errors:
I got 33 errors:
Code:
#include <stdlib.h>
#include <GLUT/glut.h>
int lastFrameTime = 0;
float boxX = 0.0f;
void display(void)
{
if lastFrameTime == 0
{
lastFrameTime = glutGet(GLUT_ELAPSED_TIME);
}
int now = glutGet(GLUT_ELAPSED_TIME);
int elapsedMilliseconds = now - lastFrameTime;
float elapsedTime = elapsedMilliseconds / 1000.0f;
lastFrameTime = now;
int windowWidth = glutGet(GLUT_WINDOW_WIDTH);
boxX += 512.0f * elapsedTime;
if (boxX > windowWidth)
{
boxX -= windowWidth;
}
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glTranslatef(boxX, 0.0f, 0.0f);
glBegin(GL_QUADS);
glVertex2f( 0.0f, 0.0f);
glVertex2f( 128.0f, 0.0f);
glVertex2f( 128.0f, 128.0f);
glVertex2f( 0.0f, 128.0f);
glEnd();
glPopMatrix();
glutSwapBuffers();
}
void reshape(int width, int height)
{
glViewport(0, 0, width, height);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluOrtho2D(0, width, 0, height);
glMatrixMode(GL_MODELVIEW);
}
void idle(void)
{
glutPostRedisplay();
}
int main(int argc, char** argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_RGBA | GLUT_DOUBLE | GLUT_DEPTH);
glutInitWindowSize(640, 480);
glutCreateWindow("GLUT Program");
glutDisplayFunc(display);
glutReshapeFunc(reshape);
glutIdleFunc(idle);
glutMainLoop();
return EXIT_SUCCESS;
}
Post: #2
You didn't copy and paste it from the page, did ya.
putting parentheses around the top if statement fixes the problem. In future, post your errors -- just the code's not very helpful.
putting parentheses around the top if statement fixes the problem. In future, post your errors -- just the code's not very helpful.
I guess I overlooked that...
