X-Git-Url: http://git.mutantstargoat.com?a=blobdiff_plain;f=src%2Fmain.cc;h=36fdeb8eb64df9e287a40e05a70eb821f983f6a7;hb=f6d33178841d379dc9fe111970aff926bde0793c;hp=9720723ffbbc40dbfd9eb314af4dc349201d6b07;hpb=a8a7d557cf22c2bf16eb333d33a6c7c68f532482;p=hair

diff --git a/src/main.cc b/src/main.cc
index 9720723..36fdeb8 100644
--- a/src/main.cc
+++ b/src/main.cc
@@ -24,8 +24,13 @@ static void keyup(unsigned char key, int x, int y);
 static void mouse(int bn, int st, int x, int y);
 static void motion(int x, int y);
 static void idle();
+static void sball_motion(int x, int y, int z);
+static void sball_rotate(int x, int y, int z);
+static void sball_button(int bn, int st);
 
 static unsigned int gen_grad_tex(int sz, const Vec3 &c0, const Vec3 &c1);
+static void draw_text(const char *text, int x, int y, float sz, const Vec3 &color);
+static void update_sball_matrix();
 
 static std::vector<Mesh*> meshes;
 static Mesh *mesh_head;
@@ -39,6 +44,13 @@ static float head_rz, head_rx; /* rot angles x, z axis */
 static Mat4 head_xform;
 //static CollSphere coll_sphere; /* sphere used for collision detection */
 
+// spaceball (6dof control) state
+static Vec3 sball_pos;
+static Quat sball_rot;
+static Mat4 sball_xform;
+static bool sball_update_pending;
+
+
 int main(int argc, char **argv)
 {
 	glutInit(&argc, argv);
@@ -56,6 +68,9 @@ int main(int argc, char **argv)
 	glutMouseFunc(mouse);
 	glutMotionFunc(motion);
 	glutIdleFunc(idle);
+	glutSpaceballMotionFunc(sball_motion);
+	glutSpaceballRotateFunc(sball_rotate);
+	glutSpaceballButtonFunc(sball_button);
 
 	if(!init()) {
 		return 1;
@@ -129,6 +144,7 @@ static void cleanup()
 	for(size_t i=0; i<meshes.size(); i++) {
 		delete meshes[i];
 	}
+	glDeleteTextures(1, &grad_tex);
 }
 
 static void display()
@@ -138,11 +154,17 @@ static void display()
 	float dt = (float)(msec - prev_time) / 1000.0;
 	prev_time = msec;
 
+	if(sball_update_pending) {
+		update_sball_matrix();
+		sball_update_pending = false;
+	}
+
 	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 
 	head_xform = Mat4::identity;
 	head_xform.rotate_x(gph::deg_to_rad(head_rx));
 	head_xform.rotate_z(-gph::deg_to_rad(head_rz));
+	head_xform *= sball_xform;
 
 	glMatrixMode(GL_MODELVIEW);
 	glLoadIdentity();
@@ -158,7 +180,12 @@ static void display()
 	glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
 */
 	for(size_t i=0; i<meshes.size(); i++) {
-		meshes[i]->draw();
+		if(!meshes[i]->mtl.tex || meshes[i]->mtl.tex_opaque)
+			meshes[i]->draw();
+	}
+	for(size_t i=0; i<meshes.size(); i++) {
+		if(meshes[i]->mtl.tex && !meshes[i]->mtl.tex_opaque)
+			meshes[i]->draw();
 	}
 /*
 	glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
@@ -194,7 +221,7 @@ static void display()
 	glPopAttrib();
 */
 	float plane[4] = {
-		0, 0, 0.5 / 350, 0.5 
+		0, 0, 0.5 / 350, 0.5
 	};
 
 	glPushMatrix();
@@ -224,6 +251,9 @@ static void display()
 
 	glPopMatrix();
 
+	draw_text("Hold h to move the head with the mouse!", 15, 15, 0.0015 * win_width, Vec3(0, 0, 0));
+	draw_text("Hold h to move the head with the mouse!", 12, 17, 0.0015 * win_width, Vec3(0.8, 0.5, 0.7));
+
 	glutSwapBuffers();
 	assert(glGetError() == GL_NO_ERROR);
 }
@@ -317,6 +347,35 @@ static void idle()
 	glutPostRedisplay();
 }
 
+static void sball_motion(int x, int y, int z)
+{
+	sball_pos.x += (float)x * 0.001;
+	sball_pos.y += (float)y * 0.001;
+	sball_pos.z -= (float)z * 0.001;
+	sball_update_pending = true;
+}
+
+static void sball_rotate(int x, int y, int z)
+{
+	Vec3 axis = Vec3(x, y, -z);
+	float axis_len = length(axis);
+	if(axis_len > 0.0f) {
+		Quat q;
+		q.set_rotation(axis / axis_len, axis_len * 0.001);
+		sball_rot = q * sball_rot;
+		sball_update_pending = true;
+	}
+}
+
+static void sball_button(int bn, int st)
+{
+	if(st != GLUT_DOWN) return;
+
+	sball_pos = Vec3(0, 0, 0);
+	sball_rot = Quat::identity;
+	sball_xform = Mat4::identity;
+}
+
 static unsigned int gen_grad_tex(int sz, const Vec3 &c0, const Vec3 &c1)
 {
 	unsigned char *pixels = new unsigned char[sz * 3];
@@ -342,3 +401,49 @@ static unsigned int gen_grad_tex(int sz, const Vec3 &c0, const Vec3 &c1)
 
 	return tex;
 }
+
+static void draw_text(const char *text, int x, int y, float sz, const Vec3 &color)
+{
+	glPushAttrib(GL_ENABLE_BIT | GL_LINE_BIT | GL_POINT_BIT);
+
+	glDisable(GL_DEPTH_TEST);
+	glDisable(GL_LIGHTING);
+	glLineWidth(3);
+	glPointSize(3);
+
+	glMatrixMode(GL_PROJECTION);
+	glPushMatrix();
+	glLoadIdentity();
+	glOrtho(0, win_width, 0, win_height, -1, 1);
+
+	glMatrixMode(GL_MODELVIEW);
+	glPushMatrix();
+	glLoadIdentity();
+	glTranslatef(x, y, 0);
+	glScalef(0.1 * sz, 0.1 * sz, 1);
+
+	glColor3f(color.x, color.y, color.z);
+	while(*text != '\0') {
+		glutStrokeCharacter(GLUT_STROKE_MONO_ROMAN, *text);
+		text++;
+	}
+
+	glMatrixMode(GL_PROJECTION);
+	glPopMatrix();
+
+	glMatrixMode(GL_MODELVIEW);
+	glPopMatrix();
+
+	glPopAttrib();
+}
+
+static void update_sball_matrix()
+{
+	Mat4 rot = sball_rot.calc_matrix();
+	//rot.transpose();
+
+	Mat4 trans;
+	trans.translation(sball_pos);
+
+	sball_xform = rot * trans;
+}