From 7664cdd0015a7d16ea6fdb0b06fca1a23586f0c1 Mon Sep 17 00:00:00 2001
From: Ash Tyndall <git@atyndall.net>
Date: Fri, 21 Oct 2011 13:50:22 +0800
Subject: [PATCH]

---
 globals.c |  5 +++--
 globals.h |  1 +
 helper.c  | 51 ++++++++++++---------------------------------------
 3 files changed, 16 insertions(+), 41 deletions(-)

diff --git a/globals.c b/globals.c
index 87a439d..a3c98f7 100644
--- a/globals.c
+++ b/globals.c
@@ -48,8 +48,9 @@ int moving, startx, starty;
 /* Recursion level for floor drawing */
 int drawFloorRecurse = 8;
 
-/* Size of floor, from -n to n */
-int floorSize = 200;
+/* Size of floor, from -n to n, floorSize must be divisible by squareSize */
+int floorSize = 150;
+float squareSize = 0.5;
 
 /* Current camera x, y, z coords */
 GLfloat camx = 0.0, camy = 0.0, camz = 0.0, keyrot = 0.0;
diff --git a/globals.h b/globals.h
index 5a2b641..4c6c086 100644
--- a/globals.h
+++ b/globals.h
@@ -39,6 +39,7 @@ extern int drawFloorRecurse;
 
 /* Size of floor, from -n to n */
 extern int floorSize;
+extern float squareSize;
 
 /* Current camera position */
 extern GLfloat camx, camy, camz, keyrot;
diff --git a/helper.c b/helper.c
index 460c44a..445e0cd 100644
--- a/helper.c
+++ b/helper.c
@@ -206,49 +206,22 @@ int makeSubmenuFromArray( const char *menuEntries[], unsigned int menuEntriesSiz
   return mainMenu;
 }
 
-/**
- * Recursive function to draw a square by drawing smaller and smaller
- * divisions of the square, determined by drawFloorRecurse.
- * @param recurseLevel Current level of recursion, only pass 0
- * @param x1 top-left x
- * @param z1 top-left z
- * @param x2 bottom-left x
- * @param z2 bottom-left z
- */
-void drawSquare(int recurseLevel, float x1, float z1, float x2, float z2) {
-  if ( drawFloorRecurse != recurseLevel ) {
-    // Calculate middle points
-    float xm = (x1 + x2) / 2.0;
-    float zm = (z1 + z2) / 2.0;
-
-    // Increment recursion level
-    int rnew = recurseLevel + 1;
-
-    // Split into four sub-quads
-    drawSquare(rnew, x1, z1, xm, zm);
-    drawSquare(rnew, x1, zm, xm, z2);
-    drawSquare(rnew, xm, zm, x2, z2);
-    drawSquare(rnew, xm, z1, x2, zm);
-
-  } else {
-    // Draw square.
-    // **NOTE: We're drawing large strips, instead of squares, which might cause a lighting problem
-    glBegin(GL_QUADS);
-      //glNormal3f(0,1,0);
-      glColor3f(1.0, 1.0, 1.0);
-      glVertex3f(x1, 0.0, z1);
-      glVertex3f(x1, 0.0, z2);
-      glVertex3f(x2, 0.0, z2);
-      glVertex3f(x2, 0.0, z1);
-    glEnd();
-  }
-}
-
 /**
  * Draw a floor by calling the drawSquare recursion
  */
 void drawFloor() {
-  drawSquare(0, -floorSize, -floorSize, floorSize, floorSize);
+	glBegin(GL_QUADS);
+    for ( int x = -floorSize; x < floorSize; x++ ) {
+      for ( int y = -floorSize; y < floorSize; y++ ) {
+        glColor3f( 1.0, 1.0, 1.0 );
+        glVertex2f(     x*squareSize,     y*squareSize );
+        glVertex2f( (x+1)*squareSize,     y*squareSize );
+        glVertex2f( (x+1)*squareSize, (y+1)*squareSize );
+        glVertex2f(     x*squareSize, (y+1)*squareSize );
+
+      }
+    }
+	glEnd();
 }
 
 /**
-- 
2.20.1