diff options
| -rw-r--r-- | src/camera.cpp | 35 |
1 files changed, 21 insertions, 14 deletions
diff --git a/src/camera.cpp b/src/camera.cpp index bdfbc88c2..7c3dfda3c 100644 --- a/src/camera.cpp +++ b/src/camera.cpp @@ -25,6 +25,8 @@ with this program; if not, write to the Free Software Foundation, Inc., #include "utility.h" #include <cmath> +const s32 BOBFRAMES = 0x1000000; // must be a power of two + Camera::Camera(scene::ISceneManager* smgr, MapDrawControl& draw_control): m_smgr(smgr), m_playernode(NULL), @@ -70,18 +72,17 @@ void Camera::step(f32 dtime) { if (m_view_bobbing_state != 0) { - const f32 bobspeed = 0x1000000; - s32 offset = MYMAX(dtime * bobspeed, 1); + s32 offset = MYMAX(dtime * BOBFRAMES, 1); if (m_view_bobbing_state == 2) { // Animation is getting turned off - s32 subanim = (m_view_bobbing_anim & 0x7fffff); - if (subanim < 0x400000) + s32 subanim = (m_view_bobbing_anim & (BOBFRAMES/2-1)); + if (subanim < BOBFRAMES/4) offset = -1 * MYMIN(offset, subanim); else - offset = MYMIN(offset, 0x800000 - subanim); + offset = MYMIN(offset, BOBFRAMES/2 - subanim); } - m_view_bobbing_anim = (m_view_bobbing_anim + offset) & 0xffffff; + m_view_bobbing_anim = (m_view_bobbing_anim + offset) & (BOBFRAMES-1); } } @@ -102,14 +103,20 @@ void Camera::update(LocalPlayer* player, f32 frametime, v2u32 screensize) relative_cam_target.rotateYZBy(player->getPitch()); relative_cam_target += relative_cam_pos; - f32 bobangle = m_view_bobbing_anim * 2 * M_PI / 0x1000000; - f32 bobangle_s = sin(bobangle); - f32 bobangle_c = cos(bobangle); - f32 bobwidth = 0.02 * cos(player->getPitch() * M_PI / 180) - / (bobangle_c * bobangle_c + 1); - f32 bobheight = bobwidth; - relative_cam_pos.X += bobwidth * bobangle_s; - relative_cam_pos.Y += bobheight * bobangle_s * bobangle_c; + if ((m_view_bobbing_anim & (BOBFRAMES/2-1)) != 0) + { + f32 bobamount = cos(player->getPitch() * M_PI / 180); + bobamount = 2 * MYMIN(bobamount, 0.5); + + f32 bobangle = m_view_bobbing_anim * 2 * M_PI / BOBFRAMES; + f32 bobangle_s = sin(bobangle); + f32 bobangle_c = cos(bobangle); + f32 bobwidth = 0.02 * bobamount / (bobangle_c * bobangle_c + 1); + f32 bobheight = 1.5 * bobwidth; + + relative_cam_pos.X += bobwidth * bobangle_s; + relative_cam_pos.Y += bobheight * bobangle_s * bobangle_c; + } // Compute absolute camera position and target m_playernode->getAbsoluteTransformation().transformVect(m_camera_position, relative_cam_pos); |