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https://github.com/luanti-org/luanti.git
synced 2025-06-27 16:36:03 +00:00
Collected and moved existing camera infrastructure from game.cpp to camera.cpp and camera.h. Introduced configuration settings 'fov' which chooses the camera's (vertical) field of view and 'view_bobbing' which currently does nothing. Other code refactored to not expect the FOV to be a build time constant.
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Kahrl
parent
c0b35fa429
commit
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13 changed files with 428 additions and 209 deletions
205
src/game.cpp
205
src/game.cpp
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@ -28,6 +28,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
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#include "materials.h"
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#include "config.h"
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#include "clouds.h"
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#include "camera.h"
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#include "farmesh.h"
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#include "mapblock.h"
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@ -49,8 +50,6 @@ with this program; if not, write to the Free Software Foundation, Inc.,
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#define FIELD_OF_VIEW_TEST 0
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MapDrawControl draw_control;
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// Chat data
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struct ChatLine
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{
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@ -143,144 +142,6 @@ struct TextDestSignNode : public TextDest
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Client *m_client;
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};
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/*
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Render distance feedback loop
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*/
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void updateViewingRange(f32 frametime_in, Client *client)
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{
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if(draw_control.range_all == true)
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return;
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static f32 added_frametime = 0;
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static s16 added_frames = 0;
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added_frametime += frametime_in;
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added_frames += 1;
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// Actually this counter kind of sucks because frametime is busytime
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static f32 counter = 0;
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counter -= frametime_in;
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if(counter > 0)
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return;
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//counter = 0.1;
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counter = 0.2;
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/*dstream<<__FUNCTION_NAME
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<<": Collected "<<added_frames<<" frames, total of "
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<<added_frametime<<"s."<<std::endl;*/
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/*dstream<<"draw_control.blocks_drawn="
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<<draw_control.blocks_drawn
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<<", draw_control.blocks_would_have_drawn="
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<<draw_control.blocks_would_have_drawn
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<<std::endl;*/
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float range_min = g_settings.getS16("viewing_range_nodes_min");
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float range_max = g_settings.getS16("viewing_range_nodes_max");
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// Limit minimum to keep the feedback loop stable
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if(range_min < 5)
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range_min = 5;
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draw_control.wanted_min_range = range_min;
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//draw_control.wanted_max_blocks = (1.5*draw_control.blocks_drawn)+1;
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draw_control.wanted_max_blocks = (1.5*draw_control.blocks_would_have_drawn)+1;
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if(draw_control.wanted_max_blocks < 10)
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draw_control.wanted_max_blocks = 10;
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float block_draw_ratio = 1.0;
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if(draw_control.blocks_would_have_drawn != 0)
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{
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block_draw_ratio = (float)draw_control.blocks_drawn
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/ (float)draw_control.blocks_would_have_drawn;
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}
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// Calculate the average frametime in the case that all wanted
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// blocks had been drawn
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f32 frametime = added_frametime / added_frames / block_draw_ratio;
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added_frametime = 0.0;
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added_frames = 0;
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float wanted_fps = g_settings.getFloat("wanted_fps");
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float wanted_frametime = 1.0 / wanted_fps;
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f32 wanted_frametime_change = wanted_frametime - frametime;
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//dstream<<"wanted_frametime_change="<<wanted_frametime_change<<std::endl;
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// If needed frametime change is small, just return
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if(fabs(wanted_frametime_change) < wanted_frametime*0.4)
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{
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//dstream<<"ignoring small wanted_frametime_change"<<std::endl;
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return;
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}
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float range = draw_control.wanted_range;
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float new_range = range;
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static s16 range_old = 0;
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static f32 frametime_old = 0;
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float d_range = range - range_old;
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f32 d_frametime = frametime - frametime_old;
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// A sane default of 30ms per 50 nodes of range
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static f32 time_per_range = 30. / 50;
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if(d_range != 0)
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{
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time_per_range = d_frametime / d_range;
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}
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// The minimum allowed calculated frametime-range derivative:
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// Practically this sets the maximum speed of changing the range.
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// The lower this value, the higher the maximum changing speed.
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// A low value here results in wobbly range (0.001)
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// A high value here results in slow changing range (0.0025)
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// SUGG: This could be dynamically adjusted so that when
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// the camera is turning, this is lower
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//float min_time_per_range = 0.0015;
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float min_time_per_range = 0.0010;
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//float min_time_per_range = 0.05 / range;
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if(time_per_range < min_time_per_range)
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{
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time_per_range = min_time_per_range;
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//dstream<<"time_per_range="<<time_per_range<<" (min)"<<std::endl;
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}
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else
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{
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//dstream<<"time_per_range="<<time_per_range<<std::endl;
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}
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f32 wanted_range_change = wanted_frametime_change / time_per_range;
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// Dampen the change a bit to kill oscillations
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//wanted_range_change *= 0.9;
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//wanted_range_change *= 0.75;
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wanted_range_change *= 0.5;
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//dstream<<"wanted_range_change="<<wanted_range_change<<std::endl;
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// If needed range change is very small, just return
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if(fabs(wanted_range_change) < 0.001)
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{
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//dstream<<"ignoring small wanted_range_change"<<std::endl;
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return;
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}
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new_range += wanted_range_change;
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//float new_range_unclamped = new_range;
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if(new_range < range_min)
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new_range = range_min;
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if(new_range > range_max)
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new_range = range_max;
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/*dstream<<"new_range="<<new_range_unclamped
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<<", clamped to "<<new_range<<std::endl;*/
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draw_control.wanted_range = new_range;
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range_old = new_range;
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frametime_old = frametime;
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}
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/*
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Hotbar draw routine
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*/
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@ -847,6 +708,7 @@ void the_game(
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draw_load_screen(L"Creating client...", driver, font);
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std::cout<<DTIME<<"Creating client"<<std::endl;
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MapDrawControl draw_control;
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Client client(device, playername.c_str(), password, draw_control);
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draw_load_screen(L"Resolving address...", driver, font);
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@ -950,25 +812,18 @@ void the_game(
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/*
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Create the camera node
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*/
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scene::ICameraSceneNode* camera = smgr->addCameraSceneNode(
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0, // Camera parent
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v3f(BS*100, BS*2, BS*100), // Look from
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v3f(BS*100+1, BS*2, BS*100), // Look to
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-1 // Camera ID
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);
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if(camera == NULL)
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Camera camera(smgr, draw_control);
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if (camera.getPlayerNode() == NULL)
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{
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error_message = L"Failed to create the player node";
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return;
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}
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if (camera.getCameraNode() == NULL)
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{
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error_message = L"Failed to create the camera node";
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return;
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}
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camera->setFOV(FOV_ANGLE);
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// Just so big a value that everything rendered is visible
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camera->setFarValue(100000*BS);
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f32 camera_yaw = 0; // "right/left"
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f32 camera_pitch = 0; // "up/down"
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@ -1168,12 +1023,6 @@ void the_game(
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// Necessary for device->getTimer()->getTime()
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device->run();
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/*
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Viewing range
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*/
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updateViewingRange(busytime, &client);
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/*
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FPS limiter
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*/
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@ -1565,10 +1414,6 @@ void the_game(
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}
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}
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// Get player position
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v3f camera_position;
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v3f player_position = client.getPlayerPosition(&camera_position);
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//TimeTaker //timer2("//timer2");
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/*
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@ -1621,25 +1466,25 @@ void the_game(
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first_loop_after_window_activation = true;
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}
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camera_yaw = wrapDegrees(camera_yaw);
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camera_pitch = wrapDegrees(camera_pitch);
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v3f camera_direction = v3f(0,0,1);
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camera_direction.rotateYZBy(camera_pitch);
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camera_direction.rotateXZBy(camera_yaw);
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LocalPlayer* player = client.getLocalPlayer();
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camera.update(player, busytime, screensize);
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camera.step(dtime);
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camera->setPosition(camera_position);
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// *100.0 helps in large map coordinates
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camera->setTarget(camera_position + camera_direction * 100.0);
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v3f player_position = player->getPosition();
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v3f camera_position = camera.getPosition();
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v3f camera_direction = camera.getDirection();
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f32 camera_fov = camera.getFovMax();
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if(FIELD_OF_VIEW_TEST){
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client.updateCamera(v3f(0,0,0), v3f(0,0,1));
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if(FIELD_OF_VIEW_TEST)
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{
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client.updateCamera(v3f(0,0,0), v3f(0,0,1), M_PI);
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}
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else{
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//TimeTaker timer("client.updateCamera");
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client.updateCamera(camera_position, camera_direction);
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else
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{
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client.updateCamera(camera_position,
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camera_direction, camera_fov);
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}
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//timer2.stop();
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//TimeTaker //timer3("//timer3");
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@ -2010,8 +1855,6 @@ void the_game(
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Calculate stuff for drawing
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*/
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camera->setAspectRatio((f32)screensize.X / (f32)screensize.Y);
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u32 daynight_ratio = client.getDayNightRatio();
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u8 l = decode_light((daynight_ratio * LIGHT_SUN) / 1000);
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video::SColor bgcolor = video::SColor(
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