diff main.c @ 4:035d3880da04

render text with number of elements on screen
author Dennis C. M. <dennis@denniscm.com>
date Mon, 12 Jun 2023 23:10:08 +0100
parents e4003f606e07
children 6be2faa7ed6e
line wrap: on
line diff
--- a/main.c	Mon Jun 12 20:13:04 2023 +0100
+++ b/main.c	Mon Jun 12 23:10:08 2023 +0100
@@ -1,5 +1,4 @@
-#include <stdio.h>
-#include <GL/glut.h>
+#include "utils.h"
 
 
 #define HEIGHT 1080
@@ -27,29 +26,28 @@
 void display() {
 	glClear(GL_COLOR_BUFFER_BIT);
 	glBegin(GL_QUADS);
-	/*
-	glVertex2f(100.0, 100.0);      // Top left
-	glVertex2f(150.0, 100.0);     // Top right
-	glVertex2f(150.0, 300.0);	   // Bottom right 
-	glVertex2f(100.0, 300.0);    // Bottom left
 
-	glVertex2f(160.0, 100.0);
-	glVertex2f(210.0, 100.0);
-	glVertex2f(210.0, 300.0);
-	glVertex2d(160.0, 300.0);
-	*/
-	
+	float x = 1;
 	float rect_width = 5.0;
-	float space = 10.0;
+	float space = 5.0;
+	int max_rects = floor((WIDTH - rect_width) / (rect_width + space)) + x;	
+	
+	int rect_counter = 0;
+	while (rect_counter < max_rects) {
+		glVertex2f(x, 100.0);
+		glVertex2f(x + rect_width, 100.0);
+		glVertex2f(x + rect_width, HEIGHT - 300);
+		glVertex2d(x, HEIGHT - 300);
 
-	for (float pos_x = 100.0; pos_x < 500.0; pos_x += 10.0) {
-		glVertex2f(pos_x, 100.0);
-		glVertex2f(pos_x + rect_width, 100.0);
-		glVertex2f(pos_x + rect_width, 300.0);
-		glVertex2d(pos_x, 300.0);
+		x += rect_width + space;
+		rect_counter++;
 	}
 
 	glEnd();
+	
+	char text[256];
+	sprintf(text, "Number of elements: %i", rect_counter);
+    render_text(text, 20.0, HEIGHT - 200);	
 	glFlush();
 }