X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?p=demo_prior;a=blobdiff_plain;f=src%2Fpart_whitted.c;fp=src%2Fpart_whitted.c;h=7154abf7ce15fef40bcd34fc61d9336795fbaa42;hp=0000000000000000000000000000000000000000;hb=6a752049e496c93a61e0130348f71888583d743c;hpb=646e75fcb6bdb93c853f6706c23d809c2c63415c

diff --git a/src/part_whitted.c b/src/part_whitted.c
new file mode 100644
index 0000000..7154abf
--- /dev/null
+++ b/src/part_whitted.c
@@ -0,0 +1,94 @@
+#include "opengl.h"
+#include "demo.h"
+#include "part.h"
+
+static int init(void);
+static void destroy(void);
+static void start(void);
+static void stop(void);
+static void draw(long tm);
+static void mbutton(int bn, int st, int x, int y);
+static void mmotion(int x, int y);
+
+static float cam_theta, cam_phi, cam_dist = 8;
+
+static int bnstate[8];
+static int mouse_x, mouse_y;
+
+static struct demo_part part = {
+	"whitted",
+	0, 0,
+	init, destroy,
+	start, stop,
+	draw,
+	0, 0,
+	0, 0,
+	mbutton, mmotion
+};
+
+void reg_whitted(void)
+{
+	add_part(&part);
+}
+
+
+static int init(void)
+{
+	return 0;
+}
+
+static void destroy(void)
+{
+}
+
+static void start(void)
+{
+}
+
+static void stop(void)
+{
+}
+
+static void draw(long tm)
+{
+	glMatrixMode(GL_MODELVIEW);
+	glLoadIdentity();
+	glTranslatef(0, 0, -cam_dist);
+	glRotatef(cam_phi, 1, 0, 0);
+	glRotatef(cam_theta, 0, 1, 0);
+
+	glEnable(GL_LIGHTING);
+	glEnable(GL_LIGHT0);
+
+	glFrontFace(GL_CW);
+	glutSolidTeapot(1.0);
+	glFrontFace(GL_CCW);
+}
+
+static void mbutton(int bn, int st, int x, int y)
+{
+	bnstate[bn] = st;
+	mouse_x = x;
+	mouse_y = y;
+}
+
+static void mmotion(int x, int y)
+{
+	int dx = x - mouse_x;
+	int dy = y - mouse_y;
+	mouse_x = x;
+	mouse_y = y;
+
+	if(!(dx | dy)) return;
+
+	if(bnstate[0]) {
+		cam_theta += dx * 0.5;
+		cam_phi += dy * 0.5;
+		if(cam_phi < -90) cam_phi = -90;
+		if(cam_phi > 90) cam_phi = 90;
+	}
+	if(bnstate[2]) {
+		cam_dist += dy * 0.1;
+		if(cam_dist < 0) cam_dist = 0;
+	}
+}