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| author | Dan Goodliffe <dan@randomdan.homeip.net> | 2021-02-28 23:29:37 +0000 |
|---|---|---|
| committer | Dan Goodliffe <dan@randomdan.homeip.net> | 2021-02-28 23:29:37 +0000 |
| commit | dd236a39906de5855fdd1252b17a7337f0c7b052 (patch) | |
| tree | dbd19e1a278feca0f7e00409aab2cc9d2125a51a /gfx | |
| parent | Global definition of quarter_pi (diff) | |
| download | ilt-dd236a39906de5855fdd1252b17a7337f0c7b052.tar.bz2 ilt-dd236a39906de5855fdd1252b17a7337f0c7b052.tar.xz ilt-dd236a39906de5855fdd1252b17a7337f0c7b052.zip | |
Vastly improved manual camera controller
Diffstat (limited to 'gfx')
| -rw-r--r-- | gfx/manualCameraController.cpp | 30 | ||||
| -rw-r--r-- | gfx/manualCameraController.h | 9 |
2 files changed, 25 insertions, 14 deletions
diff --git a/gfx/manualCameraController.cpp b/gfx/manualCameraController.cpp index 01787c6..62c48c8 100644 --- a/gfx/manualCameraController.cpp +++ b/gfx/manualCameraController.cpp @@ -1,5 +1,8 @@ #include "manualCameraController.h" +#include <algorithm> +#include <cmath> #include <gfx/gl/camera.h> +#include <maths.h> bool ManualCameraController::handleInput(SDL_Event & e) @@ -39,9 +42,19 @@ ManualCameraController::handleInput(SDL_Event & e) break; case SDL_MOUSEMOTION: if (mrb) { - motion = e.motion; + if (ctrl) { + direction -= 0.01F * e.motion.xrel; + pitch = std::clamp(pitch - 0.01F * e.motion.yrel, 0.1F, half_pi); + } + else { + focus.x += cos(direction) * e.motion.xrel + sin(direction) * e.motion.yrel; + focus.y += cos(direction) * e.motion.yrel - sin(direction) * e.motion.xrel; + } } return true; + case SDL_MOUSEWHEEL: + dist = std::clamp(dist - e.wheel.y * 4.F, 5.F, 200.F); + break; } return false; } @@ -49,15 +62,8 @@ ManualCameraController::handleInput(SDL_Event & e) void ManualCameraController::updateCamera(Camera * camera) const { - if (motion) { - if (ctrl) { - camera->RotateY(-0.01F * motion->xrel); - camera->Pitch(-0.01F * motion->yrel); - } - else { - camera->MoveRight(motion->xrel); - camera->SlideForward(motion->yrel); - } - motion.reset(); - } + const auto rel {glm::normalize(glm::vec3 {sin(direction), -sin(pitch), cos(direction)})}; + camera->pos = !focus + up * 3.F - (rel * std::pow(dist, 1.3F)); + camera->forward = glm::normalize(rel); + camera->up = up; } diff --git a/gfx/manualCameraController.h b/gfx/manualCameraController.h index 465f31f..f2141a4 100644 --- a/gfx/manualCameraController.h +++ b/gfx/manualCameraController.h @@ -5,12 +5,15 @@ #include "inputHandler.h" #include <SDL2/SDL.h> #include <gfx/camera_controller.h> -#include <optional> +#include <glm/glm.hpp> +#include <maths.h> class Camera; class ManualCameraController : public CameraController, public InputHandler { public: + explicit ManualCameraController(glm::vec2 f) : focus {f} { } + bool handleInput(SDL_Event & e) override; void tick(TickDuration) override { } @@ -19,6 +22,8 @@ public: private: bool ctrl {false}, mrb {false}; - mutable std::optional<SDL_MouseMotionEvent> motion; + glm::vec2 focus; + float direction {quarter_pi}; + float dist {40}, pitch {quarter_pi}; }; #endif |