Add the Circle type

3 files changed, 56 insertions, 1 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 31d9982..119a240 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -37,6 +37,7 @@ add_executable(tris
 		src/main/game/game.c
 		src/main/util/list.h
 		src/main/util/list.c
-		src/main/engine/ui/types.h)
+		src/main/engine/ui/types.h
+		src/main/engine/types.h)
 
 target_link_libraries(tris PRIVATE X11 GL GLX)
diff --git a/src/main/engine/engine.c b/src/main/engine/engine.c
index bea9554..92222bb 100644
--- a/src/main/engine/engine.c
+++ b/src/main/engine/engine.c
@@ -25,6 +25,7 @@
 #include "../util.h"
 #include "ui/ui.h"
 #include "../util/list.h"
+#include "types.h"
 
 #ifdef X11
 #include <X11/Xlib.h>
@@ -45,6 +46,7 @@ typedef struct Line {
 
 typedef struct Engine {
 	UI *ui;
+	list_t *circles;
 	void (*draw_frame)();
 } Engine;
 
@@ -66,6 +68,7 @@ engine_init(int w, int h)
 		log_error("Error allocating memory for engine");
 		exit(EXIT_FAILURE);
 	}
+	engine->circles = list_create();
 
 	width = w;
 	height = h;
@@ -77,6 +80,26 @@ engine_init(int w, int h)
 	lines = list_create();
 }
 
+static Circle *
+engine_new_circle(float cx, float cy, float r, int num_segments, int outline)
+{
+	Circle *circle = malloc(sizeof(Circle));
+	circle->cx = cx;
+	circle->cy = cy;
+	circle->r = r;
+	circle->num_segments = num_segments;
+	circle->outline = outline;
+
+	return circle;
+}
+
+void
+engine_draw_circle(float cx, float cy, float r, int num_segments, int outline)
+{
+	if (engine == NULL || engine->circles == NULL) return;
+	list_add(engine->circles, engine_new_circle(cx, cy, r, num_segments, outline));
+}
+
 static Line *
 engine_new_line(int x1, int y1, int x2, int y2)
 {
diff --git a/src/main/engine/types.h b/src/main/engine/types.h
new file mode 100644
index 0000000..a87f087
--- /dev/null
+++ b/src/main/engine/types.h
@@ -0,0 +1,31 @@
+/*-
+* Copyright (C) 2025  Alessandro Iezzi <aiezzi AT alessandroiezzi PERIOD it>
+ *
+ * This file is part of Tris Game.
+ *
+ * Tris Game is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Tris Game is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Tris Game.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __ENGINE_TYPES_H__
+#define __ENGINE_TYPES_H__
+
+typedef struct Circle {
+	int outline;
+	float cx;
+	float cy;
+	float r;
+	int num_segments;
+} Circle;
+
+#endif /* __ENGINE_TYPES_H__ */