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#include "app.hpp"
#include "tile-defs.hpp"
#include "camera-offset.hpp"
#include <Magnum/GL/DefaultFramebuffer.h>
#include <Magnum/GL/Renderer.h>
namespace floormat {
void app::drawEvent()
{
if (const float dt = timeline.previousFrameDuration(); dt > 0)
{
constexpr float RC = 0.1f;
const float alpha = dt/(dt + RC);
_frame_time = _frame_time*(1-alpha) + alpha*dt;
}
else
{
swapBuffers();
timeline.nextFrame();
}
{
const auto dt = std::clamp((double)timeline.previousFrameDuration(), 1e-6, 1e-1);
update(dt);
}
_shader.set_tint({1, 1, 1, 1});
{
_framebuffer.clear(GL::FramebufferClear::Color);
_framebuffer.bind();
draw_msaa();
GL::defaultFramebuffer.bind();
GL::Framebuffer::blit(_framebuffer, GL::defaultFramebuffer, {{}, windowSize()}, GL::FramebufferBlit::Color);
}
render_menu();
swapBuffers();
redraw();
timeline.nextFrame();
}
void app::draw_msaa()
{
const with_shifted_camera_offset o{_shader, BASE_X, BASE_Y};
draw_world();
draw_cursor_tile();
}
void app::draw_world()
{
#if 0
_floor_mesh.draw(_shader, *_world[chunk_coords{0, 0}]);
_wall_mesh.draw(_shader, *_world[chunk_coords{0, 0}]);
#else
auto foo = get_draw_bounds();
auto [minx, maxx, miny, maxy] = foo;
for (std::int16_t y = miny; y <= maxy; y++)
for (std::int16_t x = minx; x <= maxx; x++)
{
const chunk_coords c{x, y};
if (!_world.contains(c))
make_test_chunk(*_world[c]);
const with_shifted_camera_offset o{_shader, c};
_floor_mesh.draw(_shader, *_world[c]);
}
for (std::int16_t y = miny; y <= maxy; y++)
for (std::int16_t x = minx; x <= maxx; x++)
{
const chunk_coords c{x, y};
const with_shifted_camera_offset o{_shader, c};
_wall_mesh.draw(_shader, *_world[c]);
}
#endif
}
void app::draw_wireframe_quad(global_coords pos)
{
constexpr float LINE_WIDTH = 1;
const auto pt = pos.to_signed();
if (const auto& [c, tile] = _world[pos]; tile.ground_image)
{
const Vector3 center{pt[0]*TILE_SIZE[0], pt[1]*TILE_SIZE[1], 0};
_shader.set_tint({1, 0, 0, 1});
_wireframe_quad.draw(_shader, {center, {TILE_SIZE[0], TILE_SIZE[1]}, LINE_WIDTH});
}
}
void app::draw_wireframe_box(local_coords pt)
{
constexpr float LINE_WIDTH = 1.5;
constexpr auto X = TILE_SIZE[0], Y = TILE_SIZE[1], Z = TILE_SIZE[2];
constexpr Vector3 size{X, Y, Z};
const Vector3 center1{X*pt.x, Y*pt.y, 0};
_shader.set_tint({0, 1, 0, 1});
_wireframe_box.draw(_shader, {center1, size, LINE_WIDTH});
}
void app::draw_cursor_tile()
{
if (_cursor_tile && !_cursor_in_imgui)
draw_wireframe_quad(*_cursor_tile);
}
} // namespace floormat
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