Merge pull request #1247 from AlexMacocian/alexmacocian/mission-map-d…

…raw-lines

Draw lines on mission map

GWToolboxdll/Widgets/MissionMapWidget.cpp

@@ -12,48 +12,104 @@
 #include <Utils/ToolboxUtils.h>
 
 namespace {
-
+ GW::Vec2f mission_map_top_left;
+ GW::Vec2f mission_map_bottom_right;
+ GW::Vec2f mission_map_scale;
+ float mission_map_zoom;
+
+ GW::Vec2f mission_map_center_pos;
+ GW::Vec2f mission_map_last_click_location;
+ GW::Vec2f current_pan_offset;
+
+ GW::Vec2f mission_map_screen_pos;
+
+ bool GamePosToWorldMap(const GW::GamePos& game_map_pos, GW::Vec2f* world_map_pos)
+ {
+ ImRect map_bounds;
+ if (!GW::Map::GetMapWorldMapBounds(GW::Map::GetMapInfo(), &map_bounds)) return false;
+ const auto current_map_context = GW::GetMapContext();
+ if (!current_map_context) return false;
+
+ const auto game_map_rect = ImRect({
+ current_map_context->map_boundaries[1],
+ current_map_context->map_boundaries[2],
+ current_map_context->map_boundaries[3],
+ current_map_context->map_boundaries[4],
+ });
+
+ // NB: World map is 96 gwinches per unit, this is hard coded in the GW source
+ const auto gwinches_per_unit = 96.f;
+ GW::Vec2f map_mid_world_point = {
+ map_bounds.Min.x + (abs(game_map_rect.Min.x) / gwinches_per_unit),
+ map_bounds.Min.y + (abs(game_map_rect.Max.y) / gwinches_per_unit),
+ };
+
+ world_map_pos->x = (game_map_pos.x / gwinches_per_unit) + map_mid_world_point.x;
+ world_map_pos->y = ((game_map_pos.y * -1.f) / gwinches_per_unit) + map_mid_world_point.y; // Inverted Y Axis
+ return true;
+ }
+
+ GW::Vec2f GetMissionMapScreenCenterPos() {
+ return mission_map_top_left + (mission_map_bottom_right - mission_map_top_left) / 2;
+ }
+
+ GW::Vec2f ProjectWorldMapToScreen(const GW::Vec2f position) {
+ const auto offset = (position - current_pan_offset);
+ const auto scaled_offset = GW::Vec2f(offset.x * mission_map_scale.x, offset.y * mission_map_scale.y);
+ return (scaled_offset * mission_map_zoom + mission_map_screen_pos);
+ }
+
+ GW::Vec2f ProjectGameMapToScreen(const GW::GamePos position)
+ {
+ GW::Vec2f world_map_pos;
+ if (!GamePosToWorldMap(position, &world_map_pos))
+ {
+ return GW::Vec2f(0, 0);
+ }
+
+ return ProjectWorldMapToScreen(world_map_pos);
+ }
+
+ bool InitializeMissionMapParameters() {
+ const auto gameplay_context = GW::GetGameplayContext();
+ const auto mission_map_context = GW::Map::GetMissionMapContext();
+ const auto mission_map_frame = mission_map_context ? GW::UI::GetFrameById(mission_map_context->frame_id) : nullptr;
+ if (!(mission_map_frame && mission_map_frame->IsVisible())) return false;
+
+ const auto root = GW::UI::GetRootFrame();
+ mission_map_top_left = mission_map_frame->position.GetContentTopLeft(root);
+ mission_map_bottom_right = mission_map_frame->position.GetContentBottomRight(root);
+ mission_map_scale = mission_map_frame->position.GetViewportScale(root);
+ mission_map_zoom = gameplay_context->mission_map_zoom; 
+ mission_map_center_pos = mission_map_context->player_mission_map_pos;
+ mission_map_last_click_location = mission_map_context->last_mouse_location;
+ current_pan_offset = mission_map_context->h003c->mission_map_pan_offset;
+ mission_map_screen_pos = GetMissionMapScreenCenterPos();
+ return true;
+ }
 }
 
 void MissionMapWidget::Draw(IDirect3DDevice9*)
 {
- const auto mission_map_context = GW::Map::GetMissionMapContext();
- const auto mission_map_frame = mission_map_context ? GW::UI::GetFrameById(mission_map_context->frame_id) : nullptr;
- if (!(mission_map_frame && mission_map_frame->IsVisible()))
+ if (!InitializeMissionMapParameters()) {
  return;
-
- const auto root = GW::UI::GetRootFrame();
- const auto mission_map_top_left = mission_map_frame->position.GetContentTopLeft(root);
- const auto mission_map_bottom_right = mission_map_frame->position.GetContentBottomRight(root);
+ }
 
  const auto viewport = ImGui::GetMainViewport();
- const auto& viewport_offset = viewport->Pos;
  const auto draw_list = ImGui::GetBackgroundDrawList(viewport);
-
  const auto& lines = Minimap::Instance().custom_renderer.GetLines();
+
+ draw_list->PushClipRect({mission_map_top_left.x, mission_map_top_left.y}, {mission_map_bottom_right.x, mission_map_bottom_right.y});
 
- // TODO: Look at the minimap widget and world map widget; use translations and other bollocks to draw lines into the mission map.
-
- const auto gameplay_context = GW::GetGameplayContext();
- const auto& mission_map_zoom = gameplay_context->mission_map_zoom; // e.g. scroll wheel in/out
- const auto& mission_map_center_pos = mission_map_context->player_mission_map_pos; // e.g. player position in the world (this could change depending on observing etc)
- const auto& mission_map_last_click_location = mission_map_context->last_mouse_location; // e.g. when you drag on the mission map
- const auto& current_pan_offset = mission_map_context->h003c->mission_map_pan_offset;
-
- (viewport_offset, lines, draw_list, mission_map_zoom, mission_map_center_pos, mission_map_last_click_location);
-
- // Might need to rip off GamePosToWorldMap etc from world map widget
+ const auto map_id = GW::Map::GetMapID();
+ for (const auto& line : lines) {
+ if (!line->visible) continue;
+ if (line->map != map_id) continue;
 
- // Bounds for mission map:
- draw_list->AddRect({ mission_map_top_left.x, mission_map_top_left.y }, { mission_map_bottom_right.x, mission_map_bottom_right.y }, IM_COL32_WHITE);
- float y = mission_map_top_left.y;
- draw_list->AddText({ mission_map_top_left.x, y }, IM_COL32_WHITE, "TODO: Look at the minimap widget and world map widget.\nUse translations and other bollocks to draw lines into the mission map.");
- y += 48.f;
- draw_list->AddText({ mission_map_top_left.x, y }, IM_COL32_WHITE, std::format("Mission Map rect: {}, {}, {}, {}\nZoom level: {}\nCenter pos (player):{}, {}\nPan:{}, {}", 
- mission_map_top_left.x, mission_map_top_left.y, mission_map_bottom_right.x, mission_map_bottom_right.y, 
- mission_map_zoom, 
- mission_map_center_pos.x, mission_map_center_pos.y,
- current_pan_offset.x, current_pan_offset.y).c_str());
+ const auto projected_p1 = ProjectGameMapToScreen(line->p1);
+ const auto projected_p2 = ProjectGameMapToScreen(line->p2);
+ draw_list->AddLine(projected_p1, projected_p2, line->color, 1.0F);
+ }
 
- // RENDER ME!!
+ draw_list->PopClipRect();
 }