(no commit message)

[atyndall/cits2231.git] / scene.c

diff --git a/scene.c b/scene.c
index aa3967b..1aef061 100644 (file)
--- a/scene.c
+++ b/scene.c
@@ -558,7 +558,7 @@ void idle() {
   angle = (int)(angle + 10) % 360;\r
     //angle2 = (int)(angle2 + 10) % 360;\r
     printf("Angle 1: %f, Angle 2: %f\n", angle, angle2);\r
-    sleep(2);\r
+    sleep(25);\r
     glutPostRedisplay();\r
 }\r
 \r
@@ -583,6 +583,8 @@ void drawFloor() {
     glVertex3fv(floorVertices[3]);\r
   glEnd();*/\r
 \r
+drawSquare(0, -1000, -1000, 1000, 1000);\r
+\r
   /*if (useTexture) {\r
     glDisable(GL_TEXTURE_2D);\r
   }*/\r
@@ -590,6 +592,39 @@ void drawFloor() {
   glEnable(GL_LIGHTING);\r
 }\r
 \r
+int drawFloorRecurse = 2;\r
+/*void drawSquare(GLfloat x1, GLfloat y1, GLfloat x2, GLfloat y2) {\r
+  drawSquare(0, x1, y1, x2, y2);\r
+}*/\r
+\r
+void drawSquare(int recurseLevel, GLfloat x1, GLfloat y1, GLfloat x2, GLfloat y2) {\r
+\r
+  \r
+\r
+  if ( drawFloorRecurse != recurseLevel ) {\r
+    GLfloat xm = (x1 + x2) / 2.0;\r
+    GLfloat ym = (y1 + y2) / 2.0;\r
+    int rnew = recurseLevel + 1;\r
+    printf("Recursing to level %d\n", rnew);\r
+\r
+    // Split into four sub-quads\r
+    drawSquare(rnew, x1, y1, xm, ym);\r
+    drawSquare(rnew, x1, ym, xm, y2);\r
+    drawSquare(rnew, xm, ym, x2, y2);\r
+    drawSquare(rnew, xm, y1, x2, ym);\r
+    \r
+  } else {\r
+    printf("Drawing (%f.10, %f.10) -> (%f.10, %f.10)\n", x1, y2, x2, y2);\r
+    glBegin(GL_QUADS);\r
+      glVertex3f(x1, 0.0, y1);\r
+      glVertex3f(x1, 0.0, y2);\r
+      glVertex3f(x2, 0.0, y2);\r
+      glVertex3f(x2, 0.0, y1);\r
+    glEnd();\r
+  }\r
+\r
+}\r
+\r
 /**\r
  * Display function\r
  */\r