X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fdesigner%2Fcameracontroller.cpp;h=4706ceefeeec2c742b97e4ce8cd0bc12fe571922;hb=495c54e187ddbb7514c983e1829a69d82ccad5f3;hp=fb16bb862911f00988c0c88809fd99b481f103db;hpb=e07c0d862a4d43b2585c93e79d25380d00675309;p=r2c2.git

diff --git a/source/designer/cameracontroller.cpp b/source/designer/cameracontroller.cpp
index fb16bb8..4706cee 100644
--- a/source/designer/cameracontroller.cpp
+++ b/source/designer/cameracontroller.cpp
@@ -1,58 +1,162 @@
 /* $Id$
 
-This file is part of the MSP Märklin suite
-Copyright © 2010 Mikkosoft Productions, Mikko Rasa
+This file is part of R²C²
+Copyright © 2010-2011 Mikkosoft Productions, Mikko Rasa
 Distributed under the GPL
 */
 
 #include <cmath>
 #include <msp/input/keys.h>
+#include "3d/layout.h"
 #include "cameracontroller.h"
 
 using namespace std;
 using namespace Msp;
+using namespace R2C2;
 
-CameraController::CameraController(Graphics::Window &w, GL::Camera &c):
-	window(w),
-	camera(c),
+CameraController::CameraController(View3D &v, Graphics::EventSource &es):
+	view(v),
+	event_source(es),
+	camera(view.get_camera()),
 	move_x(0),
 	move_y(0),
-	zoom(0),
-	rotate(0),
-	pitch(0)
+	drag_mode(NONE)
 {
-	window.signal_key_press.connect(sigc::mem_fun(this, &CameraController::key_press));
-	window.signal_key_release.connect(sigc::mem_fun(this, &CameraController::key_release));
+	event_source.signal_button_press.connect(sigc::mem_fun(this, &CameraController::button_press));
+	event_source.signal_button_release.connect(sigc::mem_fun(this, &CameraController::button_release));
+	event_source.signal_pointer_motion.connect(sigc::mem_fun(this, &CameraController::pointer_motion));
+	event_source.signal_key_press.connect(sigc::mem_fun(this, &CameraController::key_press));
+	event_source.signal_key_release.connect(sigc::mem_fun(this, &CameraController::key_release));
 }
 
-void CameraController::tick(float dt)
+void CameraController::top_down()
+{
+	const GL::Vector3 &look = camera.get_look_direction();
+	float xy_len = sqrt(look.x*look.x+look.y*look.y);
+	set_look_direction(GL::Vector3(look.x*0.01/xy_len, look.y*0.01/xy_len, -0.99995));
+}
+
+void CameraController::set_look_direction(const GL::Vector3 &look)
+{
+	GL::Vector3 focus = get_focus();
+	float dist = get_distance();
+	camera.set_look_direction(look);
+	camera.set_position(GL::Vector3(focus.x-look.x*dist, focus.y-look.y*dist, focus.z-look.z*dist));
+}
+
+void CameraController::view_all()
+{
+	view.view_all();
+}
+
+void CameraController::move(float x, float y)
+{
+	const GL::Vector3 &pos = camera.get_position();
+	const GL::Vector3 &look = camera.get_look_direction();
+	float xy_len = sqrt(look.x*look.x+look.y*look.y);
+	float dx = (look.x*y+look.y*x)/xy_len;
+	float dy = (look.y*y-look.x*x)/xy_len;
+	camera.set_position(GL::Vector3(pos.x+dx, pos.y+dy, pos.z));
+}
+
+void CameraController::adjust_distance(float delta)
 {
-	if(!move_x && !move_y && !zoom && !rotate && !pitch)
-		return;
+	const GL::Vector3 &pos = camera.get_position();
+	const GL::Vector3 &look = camera.get_look_direction();
+	float dist = get_distance();
+	float low = view.get_layout().get_layout().get_catalogue().get_gauge()*5;
+	if(dist+delta<low)
+		delta = low-dist;
+	camera.set_position(GL::Vector3(pos.x-look.x*delta, pos.y-look.y*delta, pos.z-look.z*delta));
+	dist += delta;
+	camera.set_depth_clip(dist*0.02, dist*50);
+}
+
+void CameraController::rotate(float angle)
+{
+	GL::Vector3 look = camera.get_look_direction();
+	float c = cos(angle);
+	float s = sin(angle);
+	set_look_direction(GL::Vector3(look.x*c-look.y*s, look.x*s+look.y*c, look.z));
+}
 
-	GL::Vector3 pos = camera.get_position();
+void CameraController::pitch(float angle)
+{
 	GL::Vector3 look = camera.get_look_direction();
 	float xy_len = sqrt(look.x*look.x+look.y*look.y);
-	GL::Vector3 look_xy(look.x/xy_len, look.y/xy_len, 0);
-	GL::Vector3 ground(pos.x-look.x*pos.z/look.z, pos.y-look.y*pos.z/look.z, 0);
+	float c = cos(angle);
+	float s = sin(angle);
+	if(xy_len*c-look.z*s<0.01)
+		top_down();
+	else if(xy_len*s+look.z*c>-0.01)
+		set_look_direction(GL::Vector3(look.x*0.99995/xy_len, look.y*0.99995/xy_len, -0.01));
+	else
+	{
+		float xy_scale = (xy_len*c-look.z*s)/xy_len;
+		set_look_direction(GL::Vector3(look.x*xy_scale, look.y*xy_scale, xy_len*s+look.z*c));
+	}
+}
+
+void CameraController::tick(float dt)
+{
+	if(move_x || move_y)
+	{
+		float scale = get_view_scale()*dt;
+		move(move_x*scale, move_y*scale);
+	}
+}
 
-	if(rotate || pitch)
+void CameraController::button_press(int x, int y, unsigned btn, unsigned mod)
+{
+	mod = Input::mod_from_sys(mod);
+	if(btn==2 || btn==3)
+	{
+		if(mod&Input::MOD_CONTROL)
+			drag_mode = DISTANCE;
+		else
+			drag_mode = ((btn==2)==((mod&Input::MOD_SHIFT)!=0) ? ROTATE : PAN);
+
+		pointer_x = x;
+		pointer_y = y;
+	}
+	else if(btn==4)
 	{
-		float speed = -3*dt*xy_len*pos.z/look.z;
-		pos.x += (look_xy.y*rotate - look_xy.x*look.z*pitch)*speed;
-		pos.y += (-look_xy.x*rotate - look_xy.y*look.z*pitch)*speed;
-		pos.z += xy_len*pitch*speed;
-		camera.set_position(pos);
-		camera.look_at(ground);
+		adjust_distance(-get_distance()*0.1);
 	}
+	else if(btn==5)
+	{
+		adjust_distance(get_distance()*0.1);
+	}
+}
 
-	if(move_x || move_y || zoom)
+void CameraController::button_release(int, int, unsigned btn, unsigned)
+{
+	if(btn==2 || btn==3)
+		drag_mode = NONE;
+}
+
+void CameraController::pointer_motion(int x, int y)
+{
+	if(drag_mode!=NONE)
 	{
-		float zoom_speed = -zoom*pos.z/look.z;
-		pos.x += (look_xy.x*move_y + look_xy.y*move_x + look.x*zoom_speed)*dt;
-		pos.y += (look_xy.y*move_y - look_xy.x*move_x + look.y*zoom_speed)*dt;
-		pos.z += look.z*dt*zoom_speed;
-		camera.set_position(pos);
+		int dx = x-pointer_x;
+		int dy = y-pointer_y;
+
+		if(drag_mode==PAN)
+		{
+			float scale = get_view_scale()/event_source.get_height();
+			move(-dx*scale, dy*scale);
+		}
+		else if(drag_mode==ROTATE)
+		{
+			rotate(-dx*M_PI*2/event_source.get_width());
+			pitch(-dy*M_PI/event_source.get_height());
+		}
+		else if(drag_mode==DISTANCE)
+			adjust_distance(dy*3*get_distance()/event_source.get_height());
+
+		pointer_x = x;
+		pointer_y = y;
 	}
 }
 
@@ -61,25 +165,17 @@ void CameraController::key_press(unsigned code, unsigned, wchar_t)
 	unsigned key = Msp::Input::key_from_sys(code);
 
 	if(key==Msp::Input::KEY_RIGHT)
-		rotate = -1;
+		move_x = 1;
 	else if(key==Msp::Input::KEY_LEFT)
-		rotate = 1;
+		move_x = -1;
 	else if(key==Msp::Input::KEY_UP)
 		move_y = 1;
 	else if(key==Msp::Input::KEY_DOWN)
 		move_y = -1;
-	else if(key==Msp::Input::KEY_INSERT)
-		zoom = -1;
-	else if(key==Msp::Input::KEY_PGUP)
-		zoom = 1;
 	else if(key==Msp::Input::KEY_HOME)
-		pitch = 1;
-	else if(key==Msp::Input::KEY_END)
-		pitch = -1;
-	else if(key==Msp::Input::KEY_DELETE)
-		move_x = -1;
-	else if(key==Msp::Input::KEY_PGDN)
-		move_x = 1;
+		view_all();
+	else if(key==Msp::Input::KEY_INSERT)
+		top_down();
 }
 
 void CameraController::key_release(unsigned code, unsigned)
@@ -87,13 +183,26 @@ void CameraController::key_release(unsigned code, unsigned)
 	unsigned key = Msp::Input::key_from_sys(code);
 
 	if(key==Msp::Input::KEY_RIGHT || key==Msp::Input::KEY_LEFT)
-		rotate = 0;
+		move_x = 0;
 	else if(key==Msp::Input::KEY_UP || key==Msp::Input::KEY_DOWN)
 		move_y = 0;
-	else if(key==Msp::Input::KEY_INSERT || key==Msp::Input::KEY_PGUP)
-		zoom = 0;
-	else if(key==Msp::Input::KEY_HOME || key==Msp::Input::KEY_END)
-		pitch = 0;
-	else if(key==Msp::Input::KEY_DELETE || key==Msp::Input::KEY_PGDN)
-		move_x = 0;
+}
+
+GL::Vector3 CameraController::get_focus() const
+{
+	const GL::Vector3 &pos = camera.get_position();
+	const GL::Vector3 &look = camera.get_look_direction();
+	float dist = get_distance();
+	return GL::Vector3(pos.x+look.x*dist, pos.y+look.y*dist, pos.z+look.z*dist);
+}
+
+float CameraController::get_distance() const
+{
+	return -camera.get_position().z/camera.get_look_direction().z;
+}
+
+float CameraController::get_view_scale() const
+{
+	float t = tan(camera.get_field_of_view()/2)*2;
+	return get_distance()*t;
 }