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limit camera zoom

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This commit is contained in:
omigamedev
2019-07-28 11:06:16 +02:00
parent e923957c1e
commit 627a3bbb14
2 changed files with 9 additions and 4 deletions
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4
src/canvas.h
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@@ -138,7 +138,9 @@ public:
Sampler m_sampler_mix;
glm::mat4 m_cam_rot = glm::mat4(1);
glm::vec3 m_cam_pos{ 0 };
float m_cam_fov = 85;
float m_cam_fov = 85.f;
const float m_cam_fov_min = 5.f;
const float m_cam_fov_max = 150.f;
glm::vec2 m_cur_pos;
std::shared_ptr<Brush> m_current_brush;

9
src/canvas_modes.cpp
View File

@@ -49,7 +49,8 @@ void CanvasModeBasicCamera::on_MouseEvent(MouseEvent* me, glm::vec2& loc)
{
if (m_zooming)
{
Canvas::I->m_cam_fov = m_fov_start - (me->m_pos.x - m_dragR_start.x) * 0.05f;
Canvas::I->m_cam_fov = glm::clamp(m_fov_start - (me->m_pos.x - m_dragR_start.x) * 0.05f,
Canvas::I->m_cam_fov_min, Canvas::I->m_cam_fov_max);
}
else
{
@@ -62,7 +63,8 @@ void CanvasModeBasicCamera::on_MouseEvent(MouseEvent* me, glm::vec2& loc)
break;
case kEventType::MouseScroll:
m_zoom_canvas += me->m_scroll_delta * 0.1f;
Canvas::I->m_cam_fov -= me->m_scroll_delta * 2.0f;
Canvas::I->m_cam_fov = glm::clamp(Canvas::I->m_cam_fov - me->m_scroll_delta * 2.0f,
Canvas::I->m_cam_fov_min, Canvas::I->m_cam_fov_max);
App::I->brush_update();
break;
case kEventType::MouseCancel:
@@ -86,7 +88,8 @@ void CanvasModeBasicCamera::on_GestureEvent(GestureEvent* ge)
case kEventType::GestureMove:
{
Canvas::I->m_pan = m_pan_start + ge->m_pos_delta * glm::vec2(-1, -1) * 0.3f * (Canvas::I->m_cam_fov / 85.f);
Canvas::I->m_cam_fov = m_camera_fov - ge->m_distance_delta * .05f;
Canvas::I->m_cam_fov = glm::clamp(m_camera_fov - ge->m_distance_delta * .05f,
Canvas::I->m_cam_fov_min, Canvas::I->m_cam_fov_max);
auto angle = Canvas::I->m_pan * 0.003f;
Canvas::I->m_cam_rot = glm::eulerAngleXY(angle.y, angle.x);
App::I->brush_update();