opplysning: factorize

1 files changed, 82 insertions, 65 deletions

diff --git a/opplysning.c b/opplysning.c
index 8a466f2..1e2dd92 100644
--- a/opplysning.c
+++ b/opplysning.c
@@ -13,6 +13,11 @@
 
 #include "sqlite/sqlite3.h"
 
+enum {
+	SCREEN_W = 1920,
+	SCREEN_H = 1080,
+};
+
 static const char *DATABASE = "booking.db";
 
 // Unfortunately, 0 = Sunday.
@@ -175,44 +180,83 @@ load_the_events(void)
 const char *the_non_ascii = "ÄÅÉËÞÜÚÍÓÖÁÐFGHÏŒØÆŒ©®BÑΜ"
 			    "äåéëþüúíóöáðfghïœø朩®bñµß";
 
-Shader the_shader;
-RenderTexture2D the_target;
-int the_shader_u_time;
+struct ray {
+	Shader shader;
+	RenderTexture2D target;
+	int shader_u_time;
+
+	Color bg;
+	Color fg;
+	Color hd;
+
+	Font font_h;
+	Font font_p;
+};
+struct ray R;
 
 void
 blur(int x, int y, Font f, Color c, char *s)
 {
-	const int sh = 1080;
 	Vector2 m = MeasureTextEx(f, s, f.baseSize, 0);
 
-	BeginTextureMode(the_target);
+	BeginTextureMode(R.target);
 	ClearBackground((Color){0});
 	DrawTextEx(f, s, (Vector2){0, 0}, (float)f.baseSize, 0, c);
 	EndTextureMode();
 
-	BeginShaderMode(the_shader);
+	BeginShaderMode(R.shader);
 	float t = GetTime();
-	SetShaderValue(the_shader, the_shader_u_time, &t, SHADER_UNIFORM_FLOAT);
-	DrawTextureRec(the_target.texture, (Rectangle){0, sh - m.y, m.x, -m.y},
+	SetShaderValue(R.shader, R.shader_u_time, &t, SHADER_UNIFORM_FLOAT);
+	DrawTextureRec(R.target.texture,
+		       (Rectangle){0, SCREEN_H - m.y, m.x, -m.y},
 		       (Vector2){x, y}, WHITE);
 	EndShaderMode();
 }
 void
-line(int x, int y, Font f, Color c, char *s)
+line(int x, int y, Font f, Color c, const char *s)
 {
 	DrawTextEx(f, s, (Vector2){x, y}, (float)f.baseSize, 0, c);
 }
 
-int
-main(void)
+void
+draw_one_event(int x, int y, const struct event *e)
 {
-	load_the_events();
+	char s[64] = {0};
+	snprintf(s, sizeof(s), "%02u:%02u - %02u:%02u", e->hour, e->minute,
+		 e->end_hour, e->end_minute);
+	Vector2 m = MeasureTextEx(R.font_p, s, R.font_p.baseSize, 0);
+	line(x + 5.8 * R.font_p.baseSize - m.x, y, R.font_p, R.fg, s);
+	line(x + 6.5 * R.font_p.baseSize, y, R.font_p, R.fg, e->title);
+}
+void
+draw_events(int x, int y, size_t numevents,
+	    const struct event events[static numevents])
 
-	const int sw = 1920;
-	const int sh = 1080;
+{
+	int year = 0, month = 0, day = 0;
+	for (size_t i = 0; i < numevents; ++i) {
+		const struct event *e = &events[i];
+		if (year != e->year || month != e->month || day != e->day) {
+			year = e->year;
+			month = e->month;
+			day = e->day;
+
+			char s[64] = {0};
+			snprintf(s, sizeof(s), "%s %u. %s", ukedag[e->wday],
+				 e->day, maaned[e->month]);
+			line(x + 25, y += 50, R.font_h, R.hd, s);
+			y += 20;
+		}
+		y += 40;
+		draw_one_event(x, y, e);
+	}
+}
 
+void
+ray_init(void)
+{
 	SetTraceLogLevel(LOG_WARNING);
-	InitWindow(sw, sh, "opplysning");
+	InitWindow(SCREEN_W, SCREEN_H, "opplysning");
 	SetTargetFPS(60);
 
 	char *codes = calloc(128 + strlen(the_non_ascii), 1);
@@ -223,22 +267,27 @@ main(void)
 	memcpy(codes + 128, the_non_ascii, strlen(the_non_ascii));
 	int ncp = 0;
 	int *cp = LoadCodepoints(codes + 1, &ncp);
-	Font font_h = LoadFontEx("font/adventpro-bold.ttf", 60, cp, ncp);
-	// Font font_p = LoadFontEx("font/adventpro-semibold.ttf", 40, cp, ncp);
-	Font font_p =
-	    LoadFontEx("font/NHaasGroteskTXPro-55Rg.ttf", 40, cp, ncp);
+	R.font_h = LoadFontEx("font/adventpro-bold.ttf", 60, cp, ncp);
+	R.font_p = LoadFontEx("font/NHaasGroteskTXPro-55Rg.ttf", 40, cp, ncp);
 	UnloadCodepoints(cp);
 	free(codes);
 
-	Color bg = RAYWHITE;
-	Color fg = BLACK;
-	Color hd = {0xf0, 0x4a, 0x00, 0xff};
+	R.bg = RAYWHITE;
+	R.fg = BLACK;
+	R.hd = (Color){0xf0, 0x4a, 0x00, 0xff};
 
-	the_shader = LoadShader(0, "s.glsl");
-	the_shader_u_time = GetShaderLocation(the_shader, "u_time");
-	the_target = LoadRenderTexture(sw, sh);
-	int fx = 0;
+	R.shader = LoadShader(0, "s.glsl");
+	R.shader_u_time = GetShaderLocation(R.shader, "u_time");
+	R.target = LoadRenderTexture(SCREEN_W, SCREEN_H);
+}
 
+int
+main(void)
+{
+	load_the_events();
+	ray_init();
+
+	int fx = 0;
 	while (!WindowShouldClose()) {
 		struct timespec now = {0};
 		clock_gettime(CLOCK_REALTIME, &now);
@@ -250,45 +299,13 @@ main(void)
 			fx = !fx;
 
 		BeginDrawing();
-		ClearBackground(bg);
-		Vector2 v2_ts = MeasureTextEx(font_h, ts, font_h.baseSize, 0);
-		line(sw / 2 - v2_ts.x / 2, 0, font_h, fg, ts);
-
-		int y = 0;
-		int year = 0, month = 0, day = 0;
-		for (int i = 0; i < num_events; ++i) {
-			struct event *e = the_events + i;
-			if (year != e->year || month != e->month ||
-			    day != e->day) {
-				year = e->year;
-				month = e->month;
-				day = e->day;
-
-				char s[64] = {0};
-				snprintf(s, sizeof(s), "%s %u. %s",
-					 ukedag[e->wday], e->day,
-					 maaned[e->month]);
-				if (fx)
-					blur(25, y += 50, font_h, hd, s);
-				else
-					line(25, y += 50, font_h, hd, s);
-				y += 20;
-			}
-			{
-				y += 40;
-				char s[64] = {0};
-				snprintf(s, sizeof(s), "%02u:%02u - %02u:%02u",
-					 e->hour, e->minute, e->end_hour,
-					 e->end_minute);
-				Vector2 m = MeasureTextEx(font_p, s,
-							  font_p.baseSize, 0);
-				line(5.8 * font_p.baseSize - m.x, y, font_p, fg,
-				     s);
-
-				line(6.5 * font_p.baseSize, y, font_p, fg,
-				     e->title);
-			}
-		}
+		ClearBackground(R.bg);
+		Vector2 v2_ts =
+		    MeasureTextEx(R.font_h, ts, R.font_h.baseSize, 0);
+		line(SCREEN_W / 2 - v2_ts.x / 2, 0, R.font_h, R.fg, ts);
+
+		draw_events(0, 0, num_events, the_events);
+
 		EndDrawing();
 	}