/**************************************************************************/
/* test_camera_2d.h */
/**************************************************************************/
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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#ifndef TEST_CAMERA_2D_H
#define TEST_CAMERA_2D_H
#include "scene/2d/camera_2d.h"
#include "scene/main/viewport.h"
#include "scene/main/window.h"
#include "tests/test_macros.h"
namespace TestCamera2D {
TEST_CASE("[SceneTree][Camera2D] Getters and setters") {
Camera2D *test_camera = memnew(Camera2D);
SUBCASE("AnchorMode") {
test_camera->set_anchor_mode(Camera2D::AnchorMode::ANCHOR_MODE_FIXED_TOP_LEFT);
CHECK(test_camera->get_anchor_mode() == Camera2D::AnchorMode::ANCHOR_MODE_FIXED_TOP_LEFT);
test_camera->set_anchor_mode(Camera2D::AnchorMode::ANCHOR_MODE_DRAG_CENTER);
CHECK(test_camera->get_anchor_mode() == Camera2D::AnchorMode::ANCHOR_MODE_DRAG_CENTER);
}
SUBCASE("ProcessCallback") {
test_camera->set_process_callback(Camera2D::Camera2DProcessCallback::CAMERA2D_PROCESS_PHYSICS);
CHECK(test_camera->get_process_callback() == Camera2D::Camera2DProcessCallback::CAMERA2D_PROCESS_PHYSICS);
test_camera->set_process_callback(Camera2D::Camera2DProcessCallback::CAMERA2D_PROCESS_IDLE);
CHECK(test_camera->get_process_callback() == Camera2D::Camera2DProcessCallback::CAMERA2D_PROCESS_IDLE);
}
SUBCASE("Drag") {
constexpr float drag_left_margin = 0.8f;
constexpr float drag_top_margin = 0.8f;
constexpr float drag_right_margin = 0.8f;
constexpr float drag_bottom_margin = 0.8f;
constexpr float drag_horizontal_offset1 = 0.5f;
constexpr float drag_horizontal_offset2 = -0.5f;
constexpr float drag_vertical_offset1 = 0.5f;
constexpr float drag_vertical_offset2 = -0.5f;
test_camera->set_drag_margin(SIDE_LEFT, drag_left_margin);
CHECK(test_camera->get_drag_margin(SIDE_LEFT) == drag_left_margin);
test_camera->set_drag_margin(SIDE_TOP, drag_top_margin);
CHECK(test_camera->get_drag_margin(SIDE_TOP) == drag_top_margin);
test_camera->set_drag_margin(SIDE_RIGHT, drag_right_margin);
CHECK(test_camera->get_drag_margin(SIDE_RIGHT) == drag_right_margin);
test_camera->set_drag_margin(SIDE_BOTTOM, drag_bottom_margin);
CHECK(test_camera->get_drag_margin(SIDE_BOTTOM) == drag_bottom_margin);
test_camera->set_drag_horizontal_enabled(true);
CHECK(test_camera->is_drag_horizontal_enabled());
test_camera->set_drag_horizontal_enabled(false);
CHECK_FALSE(test_camera->is_drag_horizontal_enabled());
test_camera->set_drag_horizontal_offset(drag_horizontal_offset1);
CHECK(test_camera->get_drag_horizontal_offset() == drag_horizontal_offset1);
test_camera->set_drag_horizontal_offset(drag_horizontal_offset2);
CHECK(test_camera->get_drag_horizontal_offset() == drag_horizontal_offset2);
test_camera->set_drag_vertical_enabled(true);
CHECK(test_camera->is_drag_vertical_enabled());
test_camera->set_drag_vertical_enabled(false);
CHECK_FALSE(test_camera->is_drag_vertical_enabled());
test_camera->set_drag_vertical_offset(drag_vertical_offset1);
CHECK(test_camera->get_drag_vertical_offset() == drag_vertical_offset1);
test_camera->set_drag_vertical_offset(drag_vertical_offset2);
CHECK(test_camera->get_drag_vertical_offset() == drag_vertical_offset2);
}
SUBCASE("Drawing") {
test_camera->set_margin_drawing_enabled(true);
CHECK(test_camera->is_margin_drawing_enabled());
test_camera->set_margin_drawing_enabled(false);
CHECK_FALSE(test_camera->is_margin_drawing_enabled());
test_camera->set_limit_drawing_enabled(true);
CHECK(test_camera->is_limit_drawing_enabled());
test_camera->set_limit_drawing_enabled(false);
CHECK_FALSE(test_camera->is_limit_drawing_enabled());
test_camera->set_screen_drawing_enabled(true);
CHECK(test_camera->is_screen_drawing_enabled());
test_camera->set_screen_drawing_enabled(false);
CHECK_FALSE(test_camera->is_screen_drawing_enabled());
}
SUBCASE("Enabled") {
test_camera->set_enabled(true);
CHECK(test_camera->is_enabled());
test_camera->set_enabled(false);
CHECK_FALSE(test_camera->is_enabled());
}
SUBCASE("Rotation") {
constexpr float rotation_smoothing_speed = 20.0f;
test_camera->set_ignore_rotation(true);
CHECK(test_camera->is_ignoring_rotation());
test_camera->set_ignore_rotation(false);
CHECK_FALSE(test_camera->is_ignoring_rotation());
test_camera->set_rotation_smoothing_enabled(true);
CHECK(test_camera->is_rotation_smoothing_enabled());
test_camera->set_rotation_smoothing_speed(rotation_smoothing_speed);
CHECK(test_camera->get_rotation_smoothing_speed() == rotation_smoothing_speed);
}
SUBCASE("Zoom") {
const Vector2 zoom = Vector2(4, 4);
test_camera->set_zoom(zoom);
CHECK(test_camera->get_zoom() == zoom);
}
SUBCASE("Offset") {
const Vector2 offset = Vector2(100, 100);
test_camera->set_offset(offset);
CHECK(test_camera->get_offset() == offset);
}
SUBCASE("Limit") {
constexpr int limit_left = 100;
constexpr int limit_top = 100;
constexpr int limit_right = 100;
constexpr int limit_bottom = 100;
test_camera->set_limit_smoothing_enabled(true);
CHECK(test_camera->is_limit_smoothing_enabled());
test_camera->set_limit_smoothing_enabled(false);
CHECK_FALSE(test_camera->is_limit_smoothing_enabled());
test_camera->set_limit(SIDE_LEFT, limit_left);
CHECK(test_camera->get_limit(SIDE_LEFT) == limit_left);
test_camera->set_limit(SIDE_TOP, limit_top);
CHECK(test_camera->get_limit(SIDE_TOP) == limit_top);
test_camera->set_limit(SIDE_RIGHT, limit_right);
CHECK(test_camera->get_limit(SIDE_RIGHT) == limit_right);
test_camera->set_limit(SIDE_BOTTOM, limit_bottom);
CHECK(test_camera->get_limit(SIDE_BOTTOM) == limit_bottom);
}
SUBCASE("Position") {
constexpr float smoothing_speed = 20.0f;
test_camera->set_position_smoothing_enabled(true);
CHECK(test_camera->is_position_smoothing_enabled());
test_camera->set_position_smoothing_speed(smoothing_speed);
CHECK(test_camera->get_position_smoothing_speed() == smoothing_speed);
}
memdelete(test_camera);
}
TEST_CASE("[SceneTree][Camera2D] Camera positioning") {
SubViewport *mock_viewport = memnew(SubViewport);
Camera2D *test_camera = memnew(Camera2D);
mock_viewport->set_size(Vector2(400, 200));
SceneTree::get_singleton()->get_root()->add_child(mock_viewport);
mock_viewport->add_child(test_camera);
SUBCASE("Anchor mode") {
test_camera->set_anchor_mode(Camera2D::ANCHOR_MODE_DRAG_CENTER);
CHECK(test_camera->get_camera_screen_center().is_equal_approx(Vector2(0, 0)));
CHECK(test_camera->get_camera_position().is_equal_approx(Vector2(0, 0)));
test_camera->set_anchor_mode(Camera2D::ANCHOR_MODE_FIXED_TOP_LEFT);
CHECK(test_camera->get_camera_screen_center().is_equal_approx(Vector2(200, 100)));
CHECK(test_camera->get_camera_position().is_equal_approx(Vector2(0, 0)));
}
SUBCASE("Offset") {
test_camera->set_offset(Vector2(100, 100));
CHECK(test_camera->get_camera_screen_center().is_equal_approx(Vector2(100, 100)));
CHECK(test_camera->get_camera_position().is_equal_approx(Vector2(0, 0)));
test_camera->set_offset(Vector2(-100, 300));
CHECK(test_camera->get_camera_screen_center().is_equal_approx(Vector2(-100, 300)));
CHECK(test_camera->get_camera_position().is_equal_approx(Vector2(0, 0)));
test_camera->set_offset(Vector2(0, 0));
CHECK(test_camera->get_camera_screen_center().is_equal_approx(Vector2(0, 0)));
CHECK(test_camera->get_camera_position().is_equal_approx(Vector2(0, 0)));
}
SUBCASE("Limits") {
test_camera->set_limit(SIDE_LEFT, 100);
test_camera->set_limit(SIDE_TOP, 50);
CHECK(test_camera->get_camera_screen_center().is_equal_approx(Vector2(300, 150)));
CHECK(test_camera->get_camera_position().is_equal_approx(Vector2(0, 0)));
test_camera->set_limit(SIDE_LEFT, 0);
test_camera->set_limit(SIDE_TOP, 0);
CHECK(test_camera->get_camera_screen_center().is_equal_approx(Vector2(200, 100)));
CHECK(test_camera->get_camera_position().is_equal_approx(Vector2(0, 0)));
}
SUBCASE("Drag") {
CHECK(test_camera->get_camera_screen_center().is_equal_approx(Vector2(0, 0)));
// horizontal
test_camera->set_drag_horizontal_enabled(true);
test_camera->set_drag_margin(SIDE_RIGHT, 0.5);
test_camera->set_position(Vector2(100, 100));
test_camera->force_update_scroll();
CHECK(test_camera->get_camera_position().is_equal_approx(Vector2(0, 100)));
CHECK(test_camera->get_camera_screen_center().is_equal_approx(Vector2(0, 100)));
test_camera->set_position(Vector2(101, 101));
test_camera->force_update_scroll();
CHECK(test_camera->get_camera_position().is_equal_approx(Vector2(1, 101)));
CHECK(test_camera->get_camera_screen_center().is_equal_approx(Vector2(1, 101)));
// test align
test_camera->set_position(Vector2(0, 0));
test_camera->align();
CHECK(test_camera->get_camera_position().is_equal_approx(Vector2(0, 0)));
CHECK(test_camera->get_camera_screen_center().is_equal_approx(Vector2(0, 0)));
// vertical
test_camera->set_drag_vertical_enabled(true);
test_camera->set_drag_horizontal_enabled(false);
test_camera->set_drag_margin(SIDE_TOP, 0.3);
test_camera->set_position(Vector2(200, -20));
test_camera->force_update_scroll();
CHECK(test_camera->get_camera_position().is_equal_approx(Vector2(200, 0)));
CHECK(test_camera->get_camera_screen_center().is_equal_approx(Vector2(200, 0)));
test_camera->set_position(Vector2(250, -55));
test_camera->force_update_scroll();
CHECK(test_camera->get_camera_position().is_equal_approx(Vector2(250, -25)));
CHECK(test_camera->get_camera_screen_center().is_equal_approx(Vector2(250, -25)));
}
memdelete(test_camera);
memdelete(mock_viewport);
}
TEST_CASE("[SceneTree][Camera2D] Transforms") {
SubViewport *mock_viewport = memnew(SubViewport);
Camera2D *test_camera = memnew(Camera2D);
mock_viewport->set_size(Vector2(400, 200));
SceneTree::get_singleton()->get_root()->add_child(mock_viewport);
mock_viewport->add_child(test_camera);
SUBCASE("Default camera") {
Transform2D xform = mock_viewport->get_canvas_transform();
// x,y are basis vectors, origin = screen center
Transform2D test_xform = Transform2D(Vector2(1, 0), Vector2(0, 1), Vector2(200, 100));
CHECK(xform.is_equal_approx(test_xform));
}
SUBCASE("Zoom") {
test_camera->set_zoom(Vector2(0.5, 2));
Transform2D xform = mock_viewport->get_canvas_transform();
Transform2D test_xform = Transform2D(Vector2(0.5, 0), Vector2(0, 2), Vector2(200, 100));
CHECK(xform.is_equal_approx(test_xform));
test_camera->set_zoom(Vector2(10, 10));
xform = mock_viewport->get_canvas_transform();
test_xform = Transform2D(Vector2(10, 0), Vector2(0, 10), Vector2(200, 100));
CHECK(xform.is_equal_approx(test_xform));
test_camera->set_zoom(Vector2(1, 1));
xform = mock_viewport->get_canvas_transform();
test_xform = Transform2D(Vector2(1, 0), Vector2(0, 1), Vector2(200, 100));
CHECK(xform.is_equal_approx(test_xform));
}
SUBCASE("Rotation") {
test_camera->set_rotation(Math_PI / 2);
Transform2D xform = mock_viewport->get_canvas_transform();
Transform2D test_xform = Transform2D(Vector2(1, 0), Vector2(0, 1), Vector2(200, 100));
CHECK(xform.is_equal_approx(test_xform));
test_camera->set_ignore_rotation(false);
xform = mock_viewport->get_canvas_transform();
test_xform = Transform2D(Vector2(0, -1), Vector2(1, 0), Vector2(200, 100));
CHECK(xform.is_equal_approx(test_xform));
test_camera->set_rotation(-1 * Math_PI);
test_camera->force_update_scroll();
xform = mock_viewport->get_canvas_transform();
test_xform = Transform2D(Vector2(-1, 0), Vector2(0, -1), Vector2(200, 100));
CHECK(xform.is_equal_approx(test_xform));
test_camera->set_rotation(0);
test_camera->force_update_scroll();
xform = mock_viewport->get_canvas_transform();
test_xform = Transform2D(Vector2(1, 0), Vector2(0, 1), Vector2(200, 100));
CHECK(xform.is_equal_approx(test_xform));
}
memdelete(test_camera);
memdelete(mock_viewport);
}
} // namespace TestCamera2D
#endif // TEST_CAMERA_2D_H
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