5 files changed, 66 insertions, 37 deletions
diff --git a/kurator/CMakeLists.txt b/kurator/CMakeLists.txt
index 17d3939..82f0a3f 100644
--- a/kurator/CMakeLists.txt
+++ b/kurator/CMakeLists.txt
@@ -7,6 +7,7 @@ add_executable(
 	src/colors.cpp
 	src/ForceBalance.cpp
 	src/Grid.cpp
+	src/lines.cpp
 	src/main.cpp
 	src/markers.cpp
 	src/Pause.cpp
diff --git a/kurator/src/Battle.cpp b/kurator/src/Battle.cpp
index 0918e30..9df0b01 100644
--- a/kurator/src/Battle.cpp
+++ b/kurator/src/Battle.cpp
@@ -19,6 +19,7 @@
 
 #include "components.h"
 #include "Grid.h"
+#include "lines.h"
 #include "markers.h"
 #include "Pause.h"
 #include "PopupEmitter.h"
@@ -78,7 +79,6 @@ time_controls(const char* id, float& time_factor)
 static void progress_timers(sim::State& ctx);
 static void move_ui_pops(sim::State& ctx);
 static void blink_crosses(sim::State& ctx);
-static void animate_lines(sim::State& ctx);
 
 
 void
@@ -149,17 +149,7 @@ blink_crosses(sim::State& ctx)
 }
 
 
-void
-animate_lines(sim::State& ctx)
-{
-	auto lines = ctx.registry.view<Line>();
-	for (auto&& [entity, line] : lines.each())
-		line.position += (1.0 + line.hlength) / line.duration * ctx.clock.dt;
-}
-
-
 static void draw_crosses(const sim::State& ctx);
-static void draw_lines(const sim::State& ctx);
 static void draw_pops(const sim::State& ctx);
 
 
@@ -201,21 +191,6 @@ draw_crosses(const sim::State& ctx)
 
 
 void
-draw_lines(const sim::State& ctx)
-{
-	auto lines = ctx.registry.view<Line>();
-	for (const auto& [entity, line] : lines.each()) {
-		const auto diff = line.end - line.start;
-		const auto fstart = line.position - line.hlength;
-		const auto fend = line.position + line.hlength;
-		const auto start = ctx.camera.to_screen(line.start + diff.scale(fstart > 0.0 ? fstart : 0.0));
-		const auto end = ctx.camera.to_screen(line.start + diff.scale(fend > 1.0 ? 1.0 : fend));
-		DrawLine(start.x, start.y, end.x, end.y, line.color);
-	}
-}
-
-
-void
 draw_pops(const sim::State& ctx)
 {
 	auto pops = ctx.registry.view<CenteredText, sim::Transform, UIOffset>();
diff --git a/kurator/src/components.h b/kurator/src/components.h
index 41f0c67..51e91e3 100644
--- a/kurator/src/components.h
+++ b/kurator/src/components.h
@@ -39,17 +39,6 @@ struct PopMove
 };
 
 
-struct Line
-{
-	Color color;
-	engine::Point start;
-	engine::Point end;
-	double hlength;
-	double duration;
-	double position = 0.0;
-};
-
-
 struct Cross
 {
 	double phase;
diff --git a/kurator/src/lines.cpp b/kurator/src/lines.cpp
new file mode 100644
index 0000000..50c7138
--- /dev/null
+++ b/kurator/src/lines.cpp
@@ -0,0 +1,36 @@
+#include "lines.h"
+
+#include <raylib.h>
+
+#include <kurator/sim/State.h>
+
+
+namespace kurator
+{
+
+
+void
+animate_lines(sim::State& ctx)
+{
+	auto lines = ctx.registry.view<Line>();
+	for (auto&& [entity, line] : lines.each())
+		line.position += (1.0 + line.hlength) / line.duration * ctx.clock.dt;
+}
+
+
+void
+draw_lines(const sim::State& ctx)
+{
+	auto lines = ctx.registry.view<Line>();
+	for (const auto& [entity, line] : lines.each()) {
+		const auto diff = line.end - line.start;
+		const auto fstart = line.position - line.hlength;
+		const auto fend = line.position + line.hlength;
+		const auto start = ctx.camera.to_screen(line.start + diff.scale(fstart > 0.0 ? fstart : 0.0));
+		const auto end = ctx.camera.to_screen(line.start + diff.scale(fend > 1.0 ? 1.0 : fend));
+		DrawLine(start.x, start.y, end.x, end.y, line.color);
+	}
+}
+
+
+}  // namespace kurator
diff --git a/kurator/src/lines.h b/kurator/src/lines.h
new file mode 100644
index 0000000..a9bed72
--- /dev/null
+++ b/kurator/src/lines.h
@@ -0,0 +1,28 @@
+#pragma once
+
+#include <raylib.h>
+
+#include <kurator/engine/Point.h>
+#include <kurator/sim/State.h>
+
+
+namespace kurator
+{
+
+
+struct Line
+{
+	Color color;
+	engine::Point start;
+	engine::Point end;
+	double hlength;
+	double duration;
+	double position = 0.0;
+};
+
+
+void animate_lines(sim::State& ctx);
+void draw_lines(const sim::State& ctx);
+
+
+}  // namespace kurator