Parallax stars and developer helpers

gamestate.c

@@ -1008,10 +1008,9 @@ void process(GameState* gs, float dt)
 		}
 		assert(p->is_player);
 
-		if (INFINITE_RESOURCES)
-		{
+#ifdef INFINITE_RESOURCES
 			p->spice_taken_away = 0.0f;
-		}
+#endif
 		// update gold win condition
 		if (V2length(V2sub(cp_to_v2(cpBodyGetPosition(p->body)), gs->goldpos)) < GOLD_COLLECT_RADIUS)
 		{

main.c

@@ -48,6 +48,7 @@ static sg_image image_itemframe_selected;
 static sg_image image_thrusterburn;
 static sg_image image_player;
 static sg_image image_cockpit_used;
+static sg_image image_stars;
 static int cur_editing_boxtype = -1;
 static int cur_editing_rotation = 0;
 
@@ -153,6 +154,7 @@ init(void)
 		image_itemframe_selected = load_image("loaded/itemframe_selected.png");
 		image_player = load_image("loaded/player.png");
 		image_cockpit_used = load_image("loaded/cockpit_used.png");
+		image_stars = load_image("loaded/stars.png");
 	}
 
 	// socket initialization
@@ -548,7 +550,7 @@ frame(void)
 		sgp_set_blend_mode(SGP_BLENDMODE_BLEND);
 
 		// Draw background color
-		set_color(colhexcode(0x020509));
+		set_color(colhexcode(0x000000));
 		// sgp_set_color(0.1f, 0.1f, 0.1f, 1.0f);
 		sgp_clear();
 
@@ -559,9 +561,59 @@ frame(void)
 			sgp_translate(width / 2, height / 2);
 			sgp_scale_at(zoom, -zoom, 0.0f, 0.0f);
 
+			// parllax layers, just the zooming, but not 100% of the camera panning
+#if 1 // space background
+			transform_scope
+			{
+				V2 scaled_camera_pos = V2scale(camera_pos, 0.1f); // this is how strong/weak the parallax is
+				sgp_translate(-scaled_camera_pos.x, -scaled_camera_pos.y);
+				set_color(WHITE);
+				sgp_set_image(0, image_stars);
+				float stars_height_over_width = (float)sg_query_image_info(image_stars).height / (float)sg_query_image_info(image_stars).width;
+				const float stars_width = 35.0f;
+				float stars_height = stars_width * stars_height_over_width;
+				sgp_draw_textured_rect(-stars_width / 2.0f, -stars_height / 2.0f, stars_width, stars_height);
+				//sgp_draw_textured_rect(0, 0, stars_width, stars_height);
+				sgp_reset_image(0);
+			}
+#endif
+
 				// camera go to player
 				sgp_translate(-camera_pos.x, -camera_pos.y);
 
+	#if 0 // radius of viewership, dots which contextualize stuff
+				{
+					set_color(WHITE);
+					for (float r = 1.0f; r <= VISION_RADIUS; r += 1.0f)
+					{
+						for (float theta = 0.0f; theta < 2.0f * PI; theta += 0.1f)
+						{
+							V2 pos = V2scale((V2){ cosf(theta), sinf(theta) }, r);
+							sgp_draw_point(pos.x, pos.y);
+						}
+					}
+				}
+	#endif
+	#if 1 // test grid of dots
+				{
+					sgp_set_color(1.0f, 1.0f, 1.0f, 1.0f);
+					const int num = 100;
+					for (int x = -num; x < num; x++) {
+						for (int y = -num; y < num; y++) {
+							float gap = 0.5f;
+							V2 star = (V2){ (float)x * gap, (float)y * gap };
+							if (fabsf(star.x - camera_pos.x) > VISION_RADIUS)
+								continue;
+							if (fabsf(star.y - camera_pos.y) > VISION_RADIUS)
+								continue;
+
+							star.x += hash11(star.x*100.0f + star.y*67.0f);
+							star.y += hash11(star.y*93.0f + star.x*53.0f);
+							sgp_draw_point(star.x, star.y);
+						}
+					}
+				}
+	#endif
 				// hand reached limit circle
 				if (myentity() != NULL) {
 					static float hand_reach_alpha = 1.0f;
@@ -570,18 +622,9 @@ frame(void)
 					draw_circle(entity_pos(myentity()), MAX_HAND_REACH);
 				}
 
-			// stars
-			sgp_set_color(1.0f, 1.0f, 1.0f, 1.0f);
-			const int num = 30;
-			for (int x = -num; x < num; x++) {
-				for (int y = -num; y < num; y++) {
-					sgp_draw_point((float)x * 0.1f, (float)y * 0.1f);
-				}
-			}
-
 				float halfbox = BOX_SIZE / 2.0f;
 
-			// mouse
+				// mouse frozen, debugging tool
 				if (mouse_frozen) {
 					sgp_set_color(1.0f, 0.0f, 0.0f, 0.5f);
 					sgp_draw_filled_rect(world_mouse_pos.x, world_mouse_pos.y, 0.1f, 0.1f);
@@ -668,13 +711,14 @@ frame(void)
 									draw_color_rect_centered(box_pos(b), BOX_SIZE);
 								}
 						}
+
+						// draw the velocity
 						sgp_set_color(1.0f, 0.0f, 0.0f, 1.0f);
 						V2 vel = grid_vel(g);
 						V2 to = V2add(grid_com(g), vel);
 						sgp_draw_line(grid_com(g).x, grid_com(g).y, to.x, to.y);
 					}
 					if (e->is_player && get_entity(&gs, e->currently_piloting_seat) == NULL) {
-					
 						transform_scope
 						{
 							sgp_rotate_at(entity_rotation(e), entity_pos(e).x, entity_pos(e).y);

server.c

@@ -226,6 +226,9 @@ void server(void* data)
 				size_t len = 0;
 				into_bytes(&to_send, bytes_buffer, &len, MAX_BYTES_SIZE);
 
+#ifdef LOG_GAMESTATE_SIZE
+				Log("Size of gamestate packet: %zu\n", len);
+#endif
 				ENetPacket* gamestate_packet = enet_packet_create((void*)bytes_buffer, len, ENET_PACKET_FLAG_UNRELIABLE_FRAGMENT);
 				enet_peer_send(&server->peers[i], 0, gamestate_packet);
 			}

types.h

@@ -13,6 +13,7 @@
 #define BOX_MASS 1.0f
 #define THRUSTER_FORCE 4.0f
 #define THRUSTER_ENERGY_USED_PER_SECOND 0.05f
+#define VISION_RADIUS 8.0f
 
 #define TIMESTEP (1.0f / 60.0f) // not required to simulate at this, but this defines what tick the game is on
 #define TIME_BETWEEN_INPUT_PACKETS (1.0f / 20.0f)
@@ -377,6 +378,49 @@ static float lerp(float a, float b, float f)
 	return a * (1.0f - f) + (b * f);
 }
 
+static V2 V2floor(V2 p)
+{
+	return (V2) { floorf(p.x), floorf(p.y) };
+}
+
+static V2 V2fract(V2 p)
+{
+	return (V2) { fract(p.x), fract(p.y) };
+}
+/*
+float noise(V2 p)
+{
+	V2 id = V2floor(p);
+	V2 f = V2fract(p);
+
+	V2 u = V2dot(f, f) * (3.0f - 2.0f * f);
+
+	return mix(mix(random(id + V2(0.0, 0.0)),
+		random(id + V2(1.0, 0.0)), u.x),
+		mix(random(id + V2(0.0, 1.0)),
+			random(id + V2(1.0, 1.0)), u.x),
+		u.y);
+}
+
+float fbm(V2 p)
+{
+	float f = 0.0;
+	float gat = 0.0;
+
+	for (float octave = 0.; octave < 5.; ++octave)
+	{
+		float la = pow(2.0, octave);
+		float ga = pow(0.5, octave + 1.);
+		f += ga * noise(la * p);
+		gat += ga;
+	}
+
+	f = f / gat;
+
+	return f;
+}
+*/
+
 static V2 V2lerp(V2 a, V2 b, float factor)
 {
 	V2 to_return = { 0 };