From 51ebc370743b07926ce0a50232a1a65c6b6b27b5 Mon Sep 17 00:00:00 2001
From: Stanislaw Halik <sthalik@misaki.pl>
Date: Tue, 22 Nov 2022 18:46:52 +0100
Subject: finally it works

---
 main/clickable.hpp | 20 ++++++++++++++++++++
 main/draw.cpp      | 28 +++++++++++++++++++++-------
 main/main-impl.cpp | 12 ++++++++++++
 main/main-impl.hpp | 19 +++++++++++--------
 4 files changed, 64 insertions(+), 15 deletions(-)
 create mode 100644 main/clickable.hpp

(limited to 'main')

diff --git a/main/clickable.hpp b/main/clickable.hpp
new file mode 100644
index 00000000..efc1a7fa
--- /dev/null
+++ b/main/clickable.hpp
@@ -0,0 +1,20 @@
+#pragma once
+#include "src/global-coords.hpp"
+#include <Corrade/Containers/BitArrayView.h>
+#include <Magnum/Math/Range.h>
+
+namespace floormat {
+
+template<typename Atlas, typename T>
+struct clickable final {
+
+    Atlas& atlas;
+    T& item;
+    Math::Range2D<UnsignedInt> src, dest;
+    BitArrayView bitmask;
+    float depth = 0;
+    chunk_coords chunk;
+    local_coords pos;
+};
+
+} // namespace floormat
diff --git a/main/draw.cpp b/main/draw.cpp
index 6b6c39a4..ba15b365 100644
--- a/main/draw.cpp
+++ b/main/draw.cpp
@@ -2,6 +2,8 @@
 #include "floormat/app.hpp"
 #include "src/camera-offset.hpp"
 #include "src/anim-atlas.hpp"
+#include "main/clickable.hpp"
+#include <Corrade/Containers/ArrayView.h>
 #include <Magnum/GL/DefaultFramebuffer.h>
 #include <Magnum/GL/Renderer.h>
 #include <Magnum/Math/Color.h>
@@ -111,17 +113,19 @@ void main_impl::draw_anim() noexcept
                     const local_coords xy{i};
                     if (auto [atlas, s] = c[xy].scenery(); atlas)
                     {
+                        _anim_mesh.draw(_shader, *atlas, s.r, s.frame, xy);
                         const auto& g = atlas->group(s.r);
                         const auto& f = atlas->frame(s.r, s.frame);
-                        const auto& mask = atlas->bitmask();
-                        Vector2 offset;
                         constexpr Vector2 pixel88 = tile_shader::project(TILE_MAX_DIM*TILE_SIZE20*.5f);
                         const auto world_pos = TILE_SIZE20 * Vector3(xy.x, xy.y, 0) + Vector3(g.offset);
-                        offset += (Vector2(_shader.camera_offset()) + Vector2(sz))*.5f;
-                        //offset += _shader.project(world_pos);
-                        //offset -= Vector2(f.ground);
-                        Debug{} << "offset" << offset.x() << offset.y();
-                        _anim_mesh.draw(_shader, *atlas, s.r, s.frame, xy);
+                        const Vector2ui offset((Vector2(_shader.camera_offset()) + Vector2(sz) - pixel88)*.5f
+                                               + _shader.project(world_pos) - Vector2(f.ground));
+                        clickable<anim_atlas, scenery> item = {
+                            *atlas, s,
+                            { f.offset, f.offset + f.size }, { offset, offset + f.size },
+                            atlas->bitmask(), tile_shader::depth_value(xy, 0.25f), pos, xy
+                        };
+                        _clickable_scenery.push_back(item);
                     }
                 }
         }
@@ -217,4 +221,14 @@ void main_impl::drawEvent()
     timeline.nextFrame();
 }
 
+ArrayView<const clickable<anim_atlas, scenery>> main_impl::clickable_scenery() const noexcept
+{
+    return { _clickable_scenery.data(), _clickable_scenery.size() };
+}
+
+ArrayView<clickable<anim_atlas, scenery>> main_impl::clickable_scenery() noexcept
+{
+    return { _clickable_scenery.data(), _clickable_scenery.size() };
+}
+
 } // namespace floormat
diff --git a/main/main-impl.cpp b/main/main-impl.cpp
index dec3948f..0790a0d2 100644
--- a/main/main-impl.cpp
+++ b/main/main-impl.cpp
@@ -1,5 +1,6 @@
 #include "main-impl.hpp"
 #include "compat/assert.hpp"
+#include <Magnum/Platform/Sdl2Application.h>
 
 namespace floormat {
 
@@ -33,4 +34,15 @@ floormat_main* floormat_main::create(floormat_app& app, fm_settings&& options)
     return ret;
 }
 
+void main_impl::set_cursor(std::uint32_t cursor) noexcept
+{
+    setCursor(Cursor(cursor));
+}
+
+std::uint32_t main_impl::cursor() const noexcept
+{
+    using App = Platform::Sdl2Application;
+    return (std::uint32_t)static_cast<App*>(const_cast<main_impl*>(this))->cursor();
+}
+
 } // namespace floormat
diff --git a/main/main-impl.hpp b/main/main-impl.hpp
index d54b7f92..7adaeaec 100644
--- a/main/main-impl.hpp
+++ b/main/main-impl.hpp
@@ -6,6 +6,7 @@
 #include "draw/wall.hpp"
 #include "draw/anim.hpp"
 #include "shaders/tile.hpp"
+#include "main/clickable.hpp"
 #include <vector>
 #include <Corrade/Containers/String.h>
 #include <Magnum/Timeline.h>
@@ -19,13 +20,9 @@
 namespace floormat {
 
 struct floormat_app;
-
-struct clickable final {
-
-    float depth = 0;
-    chunk_coords chunk;
-    local_coords pos;
-};
+struct scenery;
+struct anim_atlas;
+template<typename Atlas, typename T> struct clickable;
 
 struct main_impl final : Platform::Sdl2Application, floormat_main
 {
@@ -47,6 +44,9 @@ struct main_impl final : Platform::Sdl2Application, floormat_main
 
     global_coords pixel_to_tile(Vector2d position) const noexcept override;
 
+    ArrayView<const clickable<anim_atlas, scenery>> clickable_scenery() const noexcept override;
+    ArrayView<clickable<anim_atlas, scenery>> clickable_scenery() noexcept override;
+
     [[maybe_unused]] void viewportEvent(ViewportEvent& event) override;
     [[maybe_unused]] void mousePressEvent(MouseEvent& event) override;
     [[maybe_unused]] void mouseReleaseEvent(MouseEvent& event) override;
@@ -68,12 +68,15 @@ struct main_impl final : Platform::Sdl2Application, floormat_main
 
     void debug_callback(unsigned src, unsigned type, unsigned id, unsigned severity, const std::string& str) const;
 
+    void set_cursor(std::uint32_t cursor) noexcept override;
+    std::uint32_t cursor() const noexcept override;
+
 private:
     fm_settings s;
     [[maybe_unused]] char _dummy = maybe_register_debug_callback(s.gpu_debug);
     floormat_app& app; // NOLINT(cppcoreguidelines-avoid-const-or-ref-data-members)
     tile_shader _shader;
-    std::vector<clickable> _clickable_scenery;
+    std::vector<clickable<anim_atlas, scenery>> _clickable_scenery;
     struct world _world{};
     Magnum::Timeline timeline;
     floor_mesh _floor_mesh;
-- 
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