5 files changed, 15 insertions, 19 deletions

diff --git a/src/main/engine/engine.c b/src/main/engine/engine.c
index ab595ac..d66c242 100644
--- a/src/main/engine/engine.c
+++ b/src/main/engine/engine.c
@@ -41,7 +41,7 @@ static int height;
 static list_t *lines = NULL;
 
 typedef struct Line {
-	int x1, y1, x2, y2;
+	float x1, y1, x2, y2;
 } Line;
 
 typedef struct Engine {
@@ -74,9 +74,6 @@ engine_init(int w, int h)
 	height = h;
 	engine->ui = ui_init(w, h);
 
-	xstep = RANGE_GL / (float) w;
-	ystep = RANGE_GL / (float) h;
-
 	lines = list_create();
 }
 
@@ -101,7 +98,7 @@ engine_draw_circle(float cx, float cy, float r, int num_segments, int outline)
 }
 
 static Line *
-engine_new_line(int x1, int y1, int x2, int y2)
+engine_new_line(float x1, float y1, float x2, float y2)
 {
 	Line *line = malloc(sizeof(Line));
 	line->x1 = x1;
@@ -113,7 +110,7 @@ engine_new_line(int x1, int y1, int x2, int y2)
 }
 
 void
-engine_draw_line(int x1, int y1, int x2, int y2)
+engine_draw_line(float x1, float y1, float x2, float y2)
 {
 	if (lines != NULL) {
 		Line *line = engine_new_line(x1, y1, x2, y2);
@@ -137,11 +134,8 @@ engine_calculate_fps()
 static void
 render_line(Line *line)
 {
-	float _x1 = line->x1 * xstep - 1; float _y1 = (height - line->y1) * ystep - 1;
-	float _x2 = line->x2 * xstep - 1; float _y2 = (height - line->y2) * ystep - 1;
-
-	glVertex2f(_x1, _y1);
-	glVertex2f(_x2, _y2);
+	glVertex2f(line->x1, line->y1);
+	glVertex2f(line->x2, line->y2);
 }
 
 static void
diff --git a/src/main/engine/engine.h b/src/main/engine/engine.h
index c6b6502..101a9a4 100644
--- a/src/main/engine/engine.h
+++ b/src/main/engine/engine.h
@@ -25,7 +25,7 @@ enum EngineInput {
 };
 
 void engine_init(int width, int height);
-void engine_draw_line(int x1, int y1, int x2, int y2);
+void engine_draw_line(float x1, float y1, float x2, float y2);
 void engine_loop(void);
 void engine_input(void (*f_input)(int engine_input));
 void engine_on_mouse_pressed(void (*event)());
diff --git a/src/main/game/game.c b/src/main/game/game.c
index 4addcf2..117cf45 100644
--- a/src/main/game/game.c
+++ b/src/main/game/game.c
@@ -20,10 +20,12 @@
 #include "../engine/engine.h"
 
 void
-game_draw_field(int box_size, int x, int y)
+game_draw_field(float box_size, float x, float y)
 {
-	engine_draw_line(box_size,     y,            box_size,     box_size * 3);
-	engine_draw_line(box_size * 2, y,            box_size * 2, box_size * 3);
-	engine_draw_line(x,            box_size,     box_size * 3, box_size);
-	engine_draw_line(x,            box_size * 2, box_size * 3, box_size * 2);
+	float half_box = box_size / 2;
+	engine_draw_line(x - half_box, y + half_box * 3, x - half_box, y - half_box * 3);
+	engine_draw_line(x + half_box, y + half_box * 3, x + half_box, y - half_box * 3);
+
+	engine_draw_line(x - half_box * 3, y + half_box, x + half_box * 3, y + half_box);
+	engine_draw_line(x - half_box * 3, y - half_box, x + half_box * 3, y - half_box);
 }
diff --git a/src/main/game/game.h b/src/main/game/game.h
index 8148645..e98e109 100644
--- a/src/main/game/game.h
+++ b/src/main/game/game.h
@@ -20,6 +20,6 @@
 #ifndef __GAME_H__
 #define __GAME_H__
 
-void game_draw_field(int box_size, int x, int y);
+void game_draw_field(float box_size, float x, float y);
 
 #endif /* __GAME_H__ */
diff --git a/src/main/main.c b/src/main/main.c
index 6a252c0..9014c3a 100644
--- a/src/main/main.c
+++ b/src/main/main.c
@@ -31,7 +31,7 @@
 void
 draw_frame()
 {
-	game_draw_field(100, 10, 10);
+	game_draw_field(0.5, 0, 0);
 }
 
 int main(void) {