/**
** Update messages
**
** @todo FIXME: make scroll speed configurable.
*/
void UpdateMessages(void)
{
if (!MessagesCount) {
return;
}
// Scroll/remove old message line
if (MessagesFrameTimeout < FrameCounter) {
++MessagesScrollY;
if (MessagesScrollY == GameFont->Height() + 1) {
MessagesFrameTimeout = FrameCounter + MESSAGES_TIMEOUT - MessagesScrollY;
MessagesScrollY = 0;
ShiftMessages();
}
}
}
/**
** Update messages
*/
void MessagesDisplay::UpdateMessages()
{
if (!MessagesCount) {
return;
}
// Scroll/remove old message line
unsigned long ticks = GetTicks();
if (MessagesFrameTimeout < ticks) {
++MessagesScrollY;
if (MessagesScrollY == UI.MessageFont->Height() + 1) {
MessagesFrameTimeout = ticks + UI.MessageScrollSpeed * 1000;
MessagesScrollY = 0;
ShiftMessages();
}
}
}
/**
** Adds message to the stack
**
** @param msg Message to add.
*/
static void AddMessage(const char *msg)
{
char *ptr;
char *message;
char *next;
if (!MessagesCount) {
MessagesFrameTimeout = FrameCounter + MESSAGES_TIMEOUT;
}
if (MessagesCount == MESSAGES_MAX) {
// Out of space to store messages, can't scroll smoothly
ShiftMessages();
MessagesFrameTimeout = FrameCounter + MESSAGES_TIMEOUT;
MessagesScrollY = 0;
}
message = Messages[MessagesCount];
// Split long message into lines
if (strlen(msg) >= sizeof(Messages[0])) {
strncpy(message, msg, sizeof(Messages[0]) - 1);
ptr = message + sizeof(Messages[0]) - 1;
*ptr-- = '\0';
next = ptr + 1;
while (ptr >= message) {
if (*ptr == ' ') {
*ptr = '\0';
next = ptr + 1;
break;
}
--ptr;
}
if (ptr < message) {
ptr = next - 1;
}
} else {
strcpy_s(message, sizeof(Messages[MessagesCount]), msg);
next = ptr = message + strlen(message);
}
while (GameFont->Width(message) + 8 >= UI.MapArea.EndX - UI.MapArea.X) {
while (1) {
--ptr;
if (*ptr == ' ') {
*ptr = '\0';
next = ptr + 1;
break;
} else if (ptr == message) {
break;
}
}
// No space found, wrap in the middle of a word
if (ptr == message) {
ptr = next - 1;
while (GameFont->Width(message) + 8 >= UI.MapArea.EndX - UI.MapArea.X) {
*--ptr = '\0';
}
next = ptr + 1;
break;
}
}
++MessagesCount;
if (strlen(msg) != (size_t)(ptr - message)) {
AddMessage(msg + (next - message));
}
}