linije

чување c600bfd13055ee47eb50a3f7c114ce1d6dec5b4d
родитељ 4872820c9b59da8d24ec06e79b84b0ba562058f2
Аутор: Страхиња Радић <sr@strahinja.org>
Датум:   Tue, 12 Aug 2025 18:49:27 +0200

Add limits.h; fine-tune redrawing, add workaround for MSYS2 bug

Diffstat:
M
linije.c
 | 
26
++++++++++++++++----------

измењених датотека: 1, додавања: 16(+), брисања: 10(-)
diff --git a/linije.c b/linije.c
@@ -6,6 +6,7 @@
 #include <SDL3_image/SDL_image.h>
 #include <assert.h>
 #include <errno.h>
+#include <limits.h>
 #include <math.h>
 #include <stdarg.h>
 #include <stdio.h>
@@ -881,7 +882,6 @@ handle_event(struct State* state, SDL_Event* event)
 	case SDL_EVENT_MOUSE_MOTION:
 		state->mouse.x = event->motion.x;
 		state->mouse.y = event->motion.y;
-		state->redraw  = 1;
 		break;
 	}
 }
@@ -1639,7 +1639,6 @@ step_animation(struct State* state)
 				"End of path at (%0.0f, %0.0f)",
 				state->animation.end.x, state->animation.end.y);
 			state->animation.active = 0;
-			state->redraw		= 1;
 		}
 
 		SDL_LogDebug(SDL_LOG_CATEGORY_APPLICATION,
@@ -1806,7 +1805,7 @@ main(int argc, char** argv)
 	last_time = SDL_GetTicks();
 	clock_getcpuclockid(getpid(), &cid);
 	clock_gettime(cid, &now);
-	srandom(now.tv_sec);
+	srandom(now.tv_nsec);
 
 	state.selection_start.x = -1;
 	state.selection_start.y = -1;
@@ -1819,22 +1818,29 @@ main(int argc, char** argv)
 		current_time = SDL_GetTicks();
 		if (state.animation.active)
 		{
-			draw(&state);
 			if (current_time > last_time + 1000 / FPS)
 			{
+				draw(&state);
 				step_animation(&state);
 				last_time = current_time;
 			}
+			if (!state.animation.active)
+				draw(&state);
 		}
-		else
+		else if (state.redraw)
 		{
-			if (state.redraw)
-			{
-				draw(&state);
-				state.redraw = 0;
-			}
+			state.redraw = 0;
+			draw(&state);
 		}
 
+/* For some reason, SDL_RenderPresent is not enough for MSYS2/Windoze...
+ * When moving a ball, the state of the screen remains stuck at the next-to-last
+ * cell, until a mouse is moved, then it updates. This is a duct tape fix.
+ */
+#if __WIN32
+		draw(&state);
+#endif
+
 		while (SDL_PollEvent(&event))
 			handle_event(&state, &event);
 	}