add chat feature

data/language/english_uk.txt

@@ -3831,3 +3831,6 @@ STR_5489    :{SMALLFONT}{BLACK}Show only tracked guests
 STR_5490    :Disable audio on focus loss
 STR_5491    :Inventions list
 STR_5492    :Scenario options
+
+STR_6000    :Send Message
+STR_6001    :Type the message you would like to send.

src/config.c

@@ -986,6 +986,7 @@ static const uint16 _defaultShortcutKeys[SHORTCUT_COUNT] = {
 	SDL_SCANCODE_EQUALS,				// SHORTCUT_INCREASE_GAME_SPEED,
 	CTRL | ALT | SDL_SCANCODE_C,		// SHORTCUT_OPEN_CHEAT_WINDOW,
 	SDL_SCANCODE_T,						// SHORTCUT_REMOVE_TOP_BOTTOM_TOOLBAR_TOGGLE,
+	SDL_SCANCODE_C						// SHORTCUT_OPEN_CHAT_WINDOW
 	SDL_SCANCODE_UP,					// SHORTCUT_SCROLL_MAP_UP
 	SDL_SCANCODE_LEFT,					// SHORTCUT_SCROLL_MAP_LEFT
 	SDL_SCANCODE_DOWN,					// SHORTCUT_SCROLL_MAP_DOWN

src/config.h

@@ -72,6 +72,7 @@ enum {
 	SHORTCUT_INCREASE_GAME_SPEED,
 	SHORTCUT_OPEN_CHEAT_WINDOW,
 	SHORTCUT_REMOVE_TOP_BOTTOM_TOOLBAR_TOGGLE,
+	SHORTCUT_OPEN_CHAT_WINDOW,
 	SHORTCUT_SCROLL_MAP_UP,
 	SHORTCUT_SCROLL_MAP_LEFT,
 	SHORTCUT_SCROLL_MAP_DOWN,

src/interface/keyboard_shortcut.c

@@ -23,6 +23,7 @@
 #include "../game.h"
 #include "../input.h"
 #include "../localisation/localisation.h"
+#include "../network/network.h"
 #include "keyboard_shortcut.h"
 #include "viewport.h"
 #include "window.h"
@@ -493,6 +494,11 @@ static void shortcut_open_cheat_window()
 	window_cheats_open();
 }
 
+static void shortcut_open_chat_window()
+{
+	network_open_chat_box();
+}
+
 static const shortcut_action shortcut_table[SHORTCUT_COUNT] = {
 	shortcut_close_top_most_window,
 	shortcut_close_all_floating_windows,
@@ -533,6 +539,7 @@ static const shortcut_action shortcut_table[SHORTCUT_COUNT] = {
 	shortcut_increase_game_speed,
 	shortcut_open_cheat_window,
 	shortcut_remove_top_bottom_toolbar_toggle,
+	shortcut_open_chat_window
 	NULL,
 	NULL,
 	NULL,

src/interface/window.h

@@ -446,12 +446,12 @@ enum {
 	WC_CHANGELOG = 121,
 	WC_TITLE_EDITOR = 122,
 	WC_TITLE_COMMAND_EDITOR = 123,
+	WC_CHAT_HOST = 124,
 
 	// Only used for colour schemes
 	WC_STAFF = 220,
 	WC_EDITOR_TRACK_BOTTOM_TOOLBAR = 221,
 	WC_EDITOR_SCENARIO_BOTTOM_TOOLBAR = 222,
-
 } WINDOW_CLASS;
 
 enum PROMPT_MODE {

src/management/news_item.c

@@ -434,3 +434,20 @@ void news_item_disable_news(uint8 type, uint32 assoc)
 	}
 }
 
+void news_item_add_to_queue_custom(rct_news_item *newNewsItem)
+{
+	int i = 0;
+	rct_news_item *newsItem = RCT2_ADDRESS(RCT2_ADDRESS_NEWS_ITEM_LIST, rct_news_item);
+
+	// Find first open slot
+	while (newsItem->type != NEWS_ITEM_NULL) {
+		if (newsItem + 1 >= (rct_news_item*)0x013CB1CC)
+			news_item_close_current();
+		else
+			newsItem++;
+	}
+
+	*newsItem = *newNewsItem;
+	newsItem++;
+	newsItem->type = 0;
+}

src/management/news_item.h

@@ -66,4 +66,6 @@ bool news_item_is_empty(int index);
 bool news_item_is_queue_empty();
 bool news_item_is_valid_idx(int index);
 
+void news_item_add_to_queue_custom(rct_news_item *newNewsItem);
+
 #endif

src/network/network.c

@@ -20,7 +20,12 @@
 
 #ifndef DISABLE_NETWORK
 
+#include "../addresses.h"
 #include "../game.h"
+#include "../interface/window.h"
+#include "../localisation/date.h"
+#include "../localisation/localisation.h"
+#include "../management/news_item.h"
 #include "network.h"
 
 #pragma comment(lib, "Ws2_32.lib")
@@ -220,14 +225,30 @@ static void network_process_packet(network_packet *packet)
 {
 	uint32 *args;
 	int command;
+	rct_news_item newsItem;
 
 	args = (uint32*)&packet->data;
 	command = args[0];
 
-	if (gNetworkStatus == NETWORK_CLIENT)
-		command |= (1 << 31);
+	switch (command) {
+	case 700:
+		newsItem.type = NEWS_ITEM_BLANK;
+		newsItem.flags = 1;
+		newsItem.assoc = 0;
+		newsItem.ticks = 0;
+		newsItem.month_year = RCT2_GLOBAL(RCT2_ADDRESS_CURRENT_MONTH_YEAR, uint16);
+		newsItem.day = ((days_in_month[(newsItem.month_year & 7)] * RCT2_GLOBAL(RCT2_ADDRESS_CURRENT_MONTH_TICKS, uint16)) >> 16) + 1;
+		newsItem.colour = FORMAT_TOPAZ;
+		strcpy(newsItem.text, packet->data + 4);
+		news_item_add_to_queue_custom(&newsItem);
+		break;
+	default:
+		if (gNetworkStatus == NETWORK_CLIENT)
+			command |= (1 << 31);
 
-	game_do_command_p(command, &args[1], &args[2], &args[3], &args[4], &args[5], &args[6], &args[7]);
+		game_do_command_p(command, &args[1], &args[2], &args[3], &args[4], &args[5], &args[6], &args[7]);
+		break;
+	}
 }
 
 void network_send_packet(network_packet *packet)
@@ -249,4 +270,70 @@ void network_print_error()
 	LocalFree(s);
 }
 
+static void window_chat_host_emptysub() { }
+
+static void window_chat_host_textinput()
+{
+	rct_window *w;
+	short widgetIndex;
+	uint8 result;
+	char *text;
+
+	window_textinput_get_registers(w, widgetIndex, result, text);
+
+	if (!result)
+		return;
+
+	network_packet packet;
+	packet.size = 4 + strlen(text) + 1;
+	*((uint32*)packet.data) = 700;
+	strcpy(packet.data + 4, text);
+
+	network_send_packet(&packet);
+
+	window_close(w);
+}
+
+static void* window_chat_host_events[] = {
+	window_chat_host_emptysub,
+	window_chat_host_emptysub,
+	window_chat_host_emptysub,
+	window_chat_host_emptysub,
+	window_chat_host_emptysub,
+	window_chat_host_emptysub,
+	window_chat_host_emptysub,
+	window_chat_host_emptysub,
+	window_chat_host_emptysub,
+	window_chat_host_emptysub,
+	window_chat_host_emptysub,
+	window_chat_host_emptysub,
+	window_chat_host_emptysub,
+	window_chat_host_emptysub,
+	window_chat_host_emptysub,
+	window_chat_host_emptysub,
+	window_chat_host_emptysub,
+	window_chat_host_emptysub,
+	window_chat_host_emptysub,
+	window_chat_host_textinput,
+	window_chat_host_emptysub,
+	window_chat_host_emptysub,
+	window_chat_host_emptysub,
+	window_chat_host_emptysub,
+	window_chat_host_emptysub,
+	window_chat_host_emptysub,
+	window_chat_host_emptysub,
+	window_chat_host_emptysub
+};
+
+void network_open_chat_box()
+{
+	rct_window *w;
+	w = window_create(0, 0, 0, 0, (uint32*)window_chat_host_events, WC_CHAT_HOST, 0);
+	w->colours[0] = 1;
+	w->colours[1] = 1;
+	w->colours[2] = 0;
+	w->number = 0;
+	window_text_input_open(w, 0, 6000, 6001, STR_NONE, 0, 64);
+}
+
 #endif /* DISABLE_NETWORK */

src/network/network.h

@@ -61,6 +61,8 @@ void network_end_server();
 void network_update();
 void network_send_packet(network_packet *packet);
 
+void network_open_chat_box();
+
 void network_print_error();
 
 #endif /* DISABLE_NETWORK */