From 5d1e18b796d41e035d0d3e828cc6db54ed21a4b6 Mon Sep 17 00:00:00 2001
From: Stijn Buys <ingar@osirion.org>
Date: Sat, 3 May 2008 14:47:12 +0000
Subject: camera handling, Cockpit view

---
 src/client/camera.cc | 161 ++++++++++++++++++++++++++-------------------------
 src/client/camera.h  |  18 ++----
 src/client/input.cc  | 124 +++++++++++++++++++++------------------
 src/client/view.cc   |   7 ++-
 4 files changed, 160 insertions(+), 150 deletions(-)

(limited to 'src/client')

diff --git a/src/client/camera.cc b/src/client/camera.cc
index c2bbc83..8144781 100644
--- a/src/client/camera.cc
+++ b/src/client/camera.cc
@@ -10,6 +10,7 @@
 #include "client/client.h"
 #include "client/camera.h"
 #include "render/render.h"
+#include "sys/sys.h"
 
 using math::degrees360f;
 using math::degrees180f;
@@ -27,51 +28,43 @@ math::Vector3f target;
 math::Vector3f eye;
 math::Axis axis;
 
-// target yaw, angle in XZ plane, positive is looking left
-float yaw_target;
-// target pitch, angle in XZ plane, positive is looking left
-float pitch_target;
-// distance from the camera to the target
-float distance;
+
 // current camera mode
 Mode mode;
 
 // private variables
 
-// current yaw, angle in XZ plane, positive is looking left
+// current and target yaw angle in XZ plane, positive is looking left
 float yaw_current;
-// current pitch, angle in XY, positive is looking up
-float pitch_current;
+float yaw_target;
+// movement direction in free mode 
+float target_direction;
 
-// current direction rotation speed
-float current_direction_speed;
-// current pitcj rotation speed
-float current_pitch_speed;
+// current and target pitch angle in XY, positive is looking up
+float pitch_current;
+float pitch_target;
+// movement direction in free mode 
+float target_pitch;
 
-// default pitch in mode::Overview
-float pitch_overview;
+float distance;
 
 // default pitch in mode::Track
 const float pitch_track = -15.0f;
-
-// default rotate offset increase/decrease
-float rotate_offset_inc;
-
-// default translate offset increase/decrease
-const float translate_offset_inc = 0.1;
+const float pitch_overview = -75.0f;
 
 void set_mode(Mode newmode);
 
 void init()
 {
-	rotate_offset_inc = 5.0f; 
-
 	yaw_current = 0;
 	yaw_target = 0; 
 
 	pitch_current = pitch_track * 2; 
 	pitch_target = pitch_track; 
 
+	target_pitch = 0.0f;
+	target_direction = 0.0f;
+
 	distance = 0.4f;
 
 	set_mode(Track);
@@ -84,12 +77,13 @@ void shutdown()
 
 void set_mode(Mode newmode) {
 
-	current_direction_speed = 0;
-	current_pitch_speed = 0;
 	yaw_target = 0;
 	yaw_current = yaw_target;
 	pitch_target = pitch_track;
-	pitch_current = pitch_target;	
+	pitch_current = pitch_target;
+
+	target_direction = 0.0f;
+	target_pitch = 0.0f;
 	distance = 0.4f;
 
 	switch(newmode) {
@@ -101,6 +95,12 @@ void set_mode(Mode newmode) {
 	case Free:
 		// switch camera to Free mode
 		mode = Free;
+		pitch_target = 2.0 * pitch_track;
+		pitch_current = pitch_target;
+		break;
+
+	case Cockpit:
+		mode = Cockpit;
 		break;
 
 	case Overview:
@@ -125,11 +125,21 @@ void next_mode()
 	case Free:
 		// switch camera to Track mode
 		set_mode(Track);
+		con_print << "camera mode: track" << std::endl;
 		break;
+
 	case Track:
+		// switch camera to Cockpit mode
+		set_mode(Cockpit);
+		con_print << "camera mode: cockpit" << std::endl;
+		break;
+	
+	case Cockpit:
 		// switch camera to Free mode
 		set_mode(Free);
+		con_print << "camera mode: free" << std::endl;
 		break;
+	
 	default:
 		break;
 	}
@@ -149,7 +159,7 @@ void draw(float seconds)
 		
 		target.clear();
 		axis.clear();
-		pitch_current = -75.0f;
+		pitch_current = pitch_overview;
 		axis.change_pitch(pitch_current);
 
 		distance = 20.0f;
@@ -160,38 +170,46 @@ void draw(float seconds)
 			set_mode(Track);
 
 		target.assign(core::localcontrol()->location());
- 		if (core::localcontrol()->model())
-			target += core::localcontrol()->model()->maxbbox().z * core::localcontrol()->axis().up();
 			
 		if (mode == Track) {
+ 			if (core::localcontrol()->model())
+				target += core::localcontrol()->model()->maxbbox().x * core::localcontrol()->axis().forward();
+
 			// make the camera swing while turning
-			yaw_target = -25.0f * core::localcontrol()->target_direction;
-			pitch_target = pitch_track - 25 * core::localcontrol()->target_pitch;
-			/*
-			d = -math::dotproduct(axis.forward(), core::localcontrol()->axis().forward()) + 1;
-			axis.change_direction(360.0f * d * seconds);
-
-			//d = -math::dotproduct(axis.left(), core::localcontrol()->axis().left()) + 1;
-			// axis.change_pitch(360.0f * d * seconds);
-			*/
-		} 
+			target_direction = core::localcontrol()->target_direction;
+			pitch_target = core::localcontrol()->target_pitch;
+
+			yaw_target =  - 45 * target_direction;
+			pitch_target = pitch_track -45 * target_pitch;
+
+		} else if (mode == Free) {
+
+			yaw_target =  yaw_current - 90 * target_direction;
+			pitch_target = pitch_current - 90 * target_pitch;
 		
+		} else if (mode == Cockpit) {
+			if (core::localcontrol()->model())
+				target += core::localcontrol()->model()->maxbbox().x * core::localcontrol()->axis().forward();
+		}
+
 		axis.assign(core::localcontrol()->axis());
 
-		// adjust direction
-		d = degrees180f(yaw_current - yaw_target);
-		yaw_current = degrees360f( yaw_current - d * seconds);
-		axis.change_direction(yaw_current);
+		if (mode != Cockpit) {
+			// adjust direction
+			d = degrees180f(yaw_current - yaw_target);
+			yaw_current = degrees360f( yaw_current - 2* d * seconds);
+			axis.change_direction(yaw_current);
 
-		// adjust pitch target
-		d = degrees180f(pitch_current - pitch_target);
-		pitch_current = degrees360f(pitch_current - d *seconds);
-		axis.change_pitch(pitch_current);
+			// adjust pitch target
+			d = degrees180f(pitch_current - pitch_target);
+			pitch_current = degrees360f(pitch_current - 2* d *seconds);
+			axis.change_pitch(pitch_current);
 		
-		if (core::localcontrol()->model()) 
-			distance = 1+core::localcontrol()->model()->radius();
-		else
-			distance = 1.5f;
+			if (core::localcontrol()->model()) 
+				distance = 1+core::localcontrol()->model()->radius();
+			else
+				distance = 1.5f;
+		}
 	}
 
 	// map world coordinates to opengl coordinates
@@ -207,44 +225,29 @@ void draw(float seconds)
 	// match the camera with the current target
 	gl::translate(-1.0f * target);
 	
-	// apply camera offset
-	gl::translate((1.0f+distance) * axis.forward());
-
-	// calculate eye position
-	eye = target - ((1.0f+distance) * axis.forward());
-}
+	if (mode != Cockpit) {
+		// apply camera offset
+		gl::translate((1.0f+distance) * axis.forward());
 
-void key_right()
-{
-	if (mode == Free) {
-		yaw_target = degrees360f(  yaw_target + rotate_offset_inc);
-	}
-}
-
-void key_left()
-{
-	if (mode == Free) {
-		yaw_target = degrees360f(  yaw_target - rotate_offset_inc);
+		// calculate eye position
+		eye = target - ((1.0f+distance) * axis.forward());
+	} else {
+		eye.assign(target);
 	}
 }
 
-void key_down()
+void set_direction(float direction)
 {
-	if (mode == Free) {
-		pitch_target = pitch_target + rotate_offset_inc;
-		if (pitch_target > 90.0f) pitch_target = 90.0f;
-	}
+	target_direction = direction;
+	math::clamp(target_direction, -1.0f, 1.0f);
 }
 
-void key_up()
+void set_pitch(float pitch)
 {
-	if (mode == Free) {
-		pitch_target = pitch_target - rotate_offset_inc;
-		if (pitch_target < -90.0f) pitch_target = -90.0f;
-	}
+	target_pitch = pitch;
+	math::clamp(target_pitch, -1.0f, 1.0f);
 }
 
-
 void reset()
 {
 	set_mode(mode);
diff --git a/src/client/camera.h b/src/client/camera.h
index 751ff02..649bdc9 100644
--- a/src/client/camera.h
+++ b/src/client/camera.h
@@ -15,7 +15,7 @@ namespace client {
 namespace camera
 {
 	/// enum indicating the camera mode
-	enum Mode {Free, Track, Overview};
+	enum Mode {Free, Track, Cockpit, Overview};
 
 	/// initialize the camera
 	void init();
@@ -25,18 +25,12 @@ namespace camera
 
 	/// draw the OpenGL camera transformation
 	void draw(float elapsed);
+	
+	/// set target direction
+	void set_direction(float direction);
 
-	/// rotate the camera left
-	void key_left();
-
-	/// rotate the camera right
-	void key_right();
-
-	/// rotate the camera up
-	void key_up();
-
-	/// rotate the camera down
-	void key_down();
+	/// set target pitch
+	void set_pitch(float pitch);
 
 	/// switch to next camera mode
 	void next_mode();
diff --git a/src/client/input.cc b/src/client/input.cc
index 533ea64..17ca724 100644
--- a/src/client/input.cc
+++ b/src/client/input.cc
@@ -25,7 +25,7 @@ namespace input
 {
 
 // local controls
-float local_turn = 0.0f;
+float local_direction = 0.0f;
 float local_pitch = 0.0f;
 float local_thrust = 0.0f;
 float local_roll = 0.0f;
@@ -37,6 +37,9 @@ unsigned int last_control = 0;
 int mouse_x = 0;
 int mouse_y = 0;
 
+float mouse_pitch;
+float mouse_direction;
+
 // true if the mouse is in the deadzone
 bool mouse_deadzone = false;
 
@@ -63,12 +66,24 @@ void shutdown()
 void keyreleased(const SDL_keysym &keysym)
 {
 	switch (keysym.sym) {
+		case SDLK_LEFT:
+			camera::set_direction(0.0f);
+			break;
+		case SDLK_RIGHT:
+			camera::set_direction(0.0f);
+			break;
+		case SDLK_UP:
+			camera::set_pitch(0.0f);
+			break;
+		case SDLK_DOWN:
+			camera::set_pitch(0.0f);
+			break;
 
 		case SDLK_SPACE:
 			camera::next_mode();
 			local_roll = 0;
 			local_pitch = 0;
-			local_turn = 0;
+			local_direction = 0;
 			break;
 
 		case SDLK_KP8: // turn down
@@ -80,11 +95,11 @@ void keyreleased(const SDL_keysym &keysym)
 			break;
 
 		case SDLK_KP4: // turn left
-			local_turn = 0.0f;
+			local_direction = 0.0f;
 			break;
 
 		case SDLK_KP6: // turn right
-			local_turn = 0.0f;
+			local_direction = 0.0f;
 			break;
 
 		case SDLK_KP_DIVIDE: // roll left
@@ -107,16 +122,16 @@ void keypressed(const SDL_keysym &keysym)
 {
 	switch (keysym.sym) {
 		case SDLK_LEFT:
-			camera::key_left();
+			camera::set_direction(1.0f);
 			break;
 		case SDLK_RIGHT:
-			camera::key_right();
+			camera::set_direction(-1.0f);
 			break;
 		case SDLK_UP:
-			camera::key_up();
+			camera::set_pitch(1.0f);
 			break;
 		case SDLK_DOWN:
-			camera::key_down();
+			camera::set_pitch(-1.0f);
 			break;
 
 		case SDLK_KP_PLUS:
@@ -136,15 +151,15 @@ void keypressed(const SDL_keysym &keysym)
 			break;
 
 		case SDLK_KP4: // left
-			local_turn = 1.0f;
+			local_direction = 1.0f;
 			break;
 
 		case SDLK_KP6: // right
-			local_turn = -1.0f;
+			local_direction = -1.0f;
 			break;
 
 		case SDLK_KP5: // level
-			local_turn = 0;
+			local_direction = 0;
 			local_pitch = 0;
 			local_roll = 0;
 			break;
@@ -183,7 +198,7 @@ void mousebuttonpressed(const SDL_MouseButtonEvent &button)
 void frame(float seconds)
 {
 	if (core::localcontrol() && (last_control != core::localcontrol()->id())) {
-		local_turn = 0.0f;
+		local_direction = 0.0f;
 		local_pitch = 0.0f;
 		local_roll = 0.0f;
 		local_thrust = core::localcontrol()->thrust();
@@ -249,59 +264,56 @@ void frame(float seconds)
 	}
 
 	if (!console::visible() && core::application()->connected() && core::localcontrol()) {
-
-		if (local_thrust > 1.0f)
-			local_thrust = 1.0f;
-		else if (local_thrust < -2.0 * thruster_offset)
-			local_thrust = -2.0 * thruster_offset;
-
-		if (camera::mode == camera::Track) {
-			if (cl_mousecontrol->value()) {
-				// mouse control when camera is in tracking mode
-				int deadzone_size = 24;
-				mouse_deadzone = true;
-	
-				// direction
-				int l = mouse_x - (video::width >> 1);
 		
-				if (abs(l) < ( deadzone_size >> 1 )) {
-					// dead zone
-					local_turn = 0;
-				} else {
-					l = (mouse_x - deadzone_size) - ((video::width - deadzone_size) >> 1);
-					local_turn = float (-l) / (float) ((video::width - deadzone_size) >> 1);
-					mouse_deadzone = false;
-				}
-	
-				// pitch
-				int h = mouse_y - (video::height >> 1);
-	
-				if (abs(h) < ( deadzone_size >> 1 )) {
-					// dead zone
-					local_pitch = 0;
-				} else {
-					h = (mouse_y - deadzone_size) - ((video::height - deadzone_size) >> 1);
-					local_pitch = float (-h) / (float) ((video::height - deadzone_size) >> 1);
-					mouse_deadzone = false;
-				}
+		if (cl_mousecontrol->value()) {
+			// the mouse will not react if it is in the deadzone
+			int deadzone_size = 24;
+			mouse_deadzone = true;
+
+			// direction
+			int l = mouse_x - (video::width >> 1);
 	
+			if (abs(l) < ( deadzone_size >> 1 )) {
+				// dead zone
+				mouse_direction = 0;
 			} else {
-				if (local_turn > 1.0f)
-					local_turn = 1.0f;
-				else if (local_turn < -1.0f)
-					local_turn = -1.0f;
+				l = (mouse_x - deadzone_size) - ((video::width - deadzone_size) >> 1);
+				mouse_direction = float (-l) / (float) ((video::width - deadzone_size) >> 1);
+				mouse_deadzone = false;
+			}
 
-				if (local_pitch > 1.0f)
-					local_pitch = 1.0f;
-				else if (local_pitch < -1.0f)
-					local_pitch = -1.0f;
+			// pitch
+			int h = mouse_y - (video::height >> 1);
 
+			if (abs(h) < ( deadzone_size >> 1 )) {
+				// dead zone
+				mouse_pitch = 0;
+			} else {
+				h = (mouse_y - deadzone_size) - ((video::height - deadzone_size) >> 1);
+				mouse_pitch = float (-h) / (float) ((video::height - deadzone_size) >> 1);
 				mouse_deadzone = false;
-			} 
+			}
+
+			if ((camera::mode == camera::Track) || (camera::mode == camera::Cockpit)) {
+				local_direction = mouse_direction;
+				local_pitch = mouse_pitch;
+			} else if (camera::mode == camera::Free) {
+				camera::set_direction(-mouse_direction);
+				camera::set_pitch(-mouse_pitch);
+			}
+
+		} else {
+	
+			math::clamp(local_direction, -1.0f,  1.0f);
+			math::clamp(local_pitch, -1.0f,  1.0f);
+			
 		}
+		
+		math::clamp(local_thrust, 0.0f,  1.0f);
+		math::clamp(local_roll, -1.0f,  1.0f);
 
 		core::localcontrol()->set_thrust(local_thrust);
-		core::localcontrol()->set_direction(local_turn);
+		core::localcontrol()->set_direction(local_direction);
 		core::localcontrol()->set_pitch(local_pitch / video::aspect );
 		core::localcontrol()->set_roll(local_roll);
 	}
diff --git a/src/client/view.cc b/src/client/view.cc
index 6f5ceca..aaf8210 100644
--- a/src/client/view.cc
+++ b/src/client/view.cc
@@ -19,6 +19,7 @@
 #include "client/video.h"
 #include "render/draw.h"
 #include "render/render.h"
+#include "render/textures.h"
 #include "core/core.h"
 #include "math/mathlib.h"
 #include "sys/sys.h"
@@ -100,7 +101,7 @@ void draw_loader()
 {
 	using namespace render;
 
-	glBindTexture(GL_TEXTURE_2D, render::textures[0]); // bitmaps/loader.tga
+	render::Textures::bind("bitmaps/loader");
 	gl::color(1.0f, 1.0f, 1.0f, 1.0f);
 
 	gl::begin(gl::Quads);
@@ -206,7 +207,7 @@ void draw_cursor()
 
 	using namespace render;
 	
-	glBindTexture(GL_TEXTURE_2D, render::textures[2]); // bitmaps/crosshairs.tga
+	render::Textures::bind("bitmaps/crosshair");
 
 	math::Color color;
 	if (draw_crosshaircolor && draw_crosshaircolor->value()) {
@@ -288,7 +289,7 @@ void frame(float seconds)
 	}
 
 	// draw text elements
-	glBindTexture(GL_TEXTURE_2D, render::textures[1]); // bitmaps/conchars.tga
+	render::Textures::bind("bitmaps/conchars");
 	
 	console::draw();
 	chat::draw();
-- 
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