changed src so the libpg headers are now used

[physics.git] / src / graphics / graphics.cpp

diff --git a/src/graphics/graphics.cpp b/src/graphics/graphics.cpp
index 54cda19..55e2337 100644 (file)
--- a/src/graphics/graphics.cpp
+++ b/src/graphics/graphics.cpp
@@ -1,17 +1,40 @@
+/*
+ *  Copyright (C) 2008 Patrik Gornicz, Gornicz_P (at) hotmail (dot) com.
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
 #include "graphics.h"
-#include "../debug.h"
+
+#include <pg/debug.h>
+#include <pg/mathw.h>
 
 #include <GL/gl.h>
 #include <GL/glu.h>
 #include <SDL/SDL.h>
 #include <cmath>
 
-#include "../mathw.h"
+#include <iostream>
+using std::cerr;
+using std::cout;
+using std::endl;
 
 
 /// ***** Private Method Headers *****
 
 void glDrawCircle(int);
+void glDrawPolygon( const std::vector<Vector2>& points );
 void sdlInit();
 void glInit();
 
@@ -30,11 +53,11 @@ void graphics::clean()
 
 /// ***** Public Methods *****
 
-void graphics::drawCircle(float radius, const Vector2& vec, const float* color)
+void graphics::drawCircle(float radius, const Vector2& pos, const float* color)
 {
     glMatrixMode(GL_MODELVIEW);
     glLoadIdentity();
-    glTranslatef(vec.x, vec.y, -1);
+    glTranslatef(pos.m_fX, pos.m_fY, -1);
     glScalef(radius, radius, radius);
 
     if(color != NULL)
@@ -43,6 +66,21 @@ void graphics::drawCircle(float radius, const Vector2& vec, const float* color)
     glDrawCircle(32);
 }
 
+void graphics::drawPolygon
+(
+  const std::vector<Vector2>& points,
+  const float* color
+)
+{
+    glMatrixMode(GL_MODELVIEW);
+    glLoadIdentity();
+
+    if(color != NULL)
+        glColor3fv(color);
+
+    glDrawPolygon(points);
+}
+
 /// ***** Private Methods *****
 
 void glDrawCircle(int pieces)
@@ -59,6 +97,18 @@ void glDrawCircle(int pieces)
     glEnd();
 }
 
+void glDrawPolygon( const std::vector<Vector2>& points )
+{
+    glBegin(GL_POLYGON);
+        for(unsigned int n = 0; n < points.size(); n++)
+        {
+            const Vector2& vec = points.at(n);
+
+            glVertex3f(vec.m_fX, vec.m_fY, 0);
+        }
+    glEnd();
+}
+
 void sdlInit()
 {
     if(SDL_Init(SDL_INIT_VIDEO) < 0)
@@ -92,4 +142,14 @@ void glInit()
     glLoadIdentity();
 
     glEnable(GL_DEPTH_TEST);
+
+    // anti aliasing?
+    /*
+    glEnable(GL_BLEND);
+    glEnable(GL_POLYGON_SMOOTH_HINT);
+
+    glBlendFunc(GL_SRC_ALPHA_SATURATE, GL_ONE);
+
+    glHint(GL_POLYGON_SMOOTH_HINT, GL_DONT_CARE);
+    */
 }