tron@2186: /* $Id$ */
tron@2186: 
richk@6719: /** @file texteff.cpp */
richk@6719: 
truelight@0: #include "stdafx.h"
Darkvater@1891: #include "openttd.h"
tron@2163: #include "functions.h"
Darkvater@4957: #include "macros.h"
tron@1309: #include "strings.h"
truelight@0: #include "gfx.h"
richk@6719: #include "landscape.h"
truelight@0: #include "viewport.h"
truelight@0: #include "saveload.h"
truelight@543: #include "console.h"
truelight@1595: #include "string.h"
tron@2153: #include "variables.h"
celestar@2218: #include "table/sprites.h"
richk@6720: #include "blitter/factory.hpp"
truelight@543: #include <stdarg.h> /* va_list */
rubidium@4261: #include "date.h"
richk@6720: #include "texteff.hpp"
richk@6720: #include "video/video_driver.hpp"
rubidium@6871: #include "transparency.h"
truelight@0: 
rubidium@5679: enum {
Darkvater@6541: 	MAX_TEXTMESSAGE_LENGTH = 200,
richk@6720: 	INIT_NUM_TEXT_MESSAGES =  20,
rubidium@5679: 	MAX_CHAT_MESSAGES      =  10,
rubidium@5679: };
rubidium@5679: 
rubidium@6574: struct TextEffect {
truelight@0: 	StringID string_id;
tron@849: 	int32 x;
tron@849: 	int32 y;
tron@849: 	int32 right;
tron@849: 	int32 bottom;
truelight@0: 	uint16 duration;
richk@6720: 	uint64 params_1;
richk@6720: 	uint64 params_2;
richk@6720: 	TextEffectMode mode;
rubidium@6574: };
truelight@0: 
truelight@543: 
rubidium@6868: struct ChatMessage {
truelight@543: 	char message[MAX_TEXTMESSAGE_LENGTH];
truelight@543: 	uint16 color;
truelight@4363: 	Date end_date;
rubidium@6574: };
truelight@543: 
rubidium@6868: /* used for text effects */
richk@6720: static TextEffect *_text_effect_list = NULL;
rubidium@6868: static uint16 _num_text_effects = INIT_NUM_TEXT_MESSAGES;
truelight@0: 
rubidium@6868: /* used for chat window */
rubidium@6868: static ChatMessage _chatmsg_list[MAX_CHAT_MESSAGES];
rubidium@6868: static bool _chatmessage_dirty = false;
rubidium@6868: static bool _chatmessage_visible = false;
truelight@543: 
Darkvater@4956: /* The chatbox grows from the bottom so the coordinates are pixels from
Darkvater@4956:  * the left and pixels from the bottom. The height is the maximum height */
rubidium@6868: static const Oblong _chatmsg_box = {10, 30, 500, 150};
rubidium@6868: static uint8 _chatmessage_backup[150 * 500 * 6]; // (height * width)
truelight@543: 
rubidium@6868: static inline uint GetChatMessageCount()
Darkvater@4957: {
Darkvater@4959: 	uint i;
Darkvater@4957: 
Darkvater@4959: 	for (i = 0; i < MAX_CHAT_MESSAGES; i++) {
rubidium@6868: 		if (_chatmsg_list[i].message[0] == '\0') break;
Darkvater@4957: 	}
Darkvater@4957: 
Darkvater@4957: 	return i;
Darkvater@4957: }
Darkvater@4957: 
Darkvater@4957: /* Add a text message to the 'chat window' to be shown
Darkvater@4957:  * @param color The colour this message is to be shown in
Darkvater@4957:  * @param duration The duration of the chat message in game-days
Darkvater@4957:  * @param message message itself in printf() style */
rubidium@6868: void CDECL AddChatMessage(uint16 color, uint8 duration, const char *message, ...)
truelight@543: {
tron@2455: 	char buf[MAX_TEXTMESSAGE_LENGTH];
Darkvater@4957: 	const char *bufp;
truelight@543: 	va_list va;
Darkvater@4957: 	uint msg_count;
Darkvater@4957: 	uint16 lines;
truelight@543: 
truelight@543: 	va_start(va, message);
tron@2373: 	vsnprintf(buf, lengthof(buf), message, va);
truelight@543: 	va_end(va);
truelight@543: 
Darkvater@6541: 
Darkvater@6541: 	Utf8TrimString(buf, MAX_TEXTMESSAGE_LENGTH);
Darkvater@6541: 
Darkvater@4957: 	/* Force linebreaks for strings that are too long */
rubidium@6868: 	lines = GB(FormatStringLinebreaks(buf, _chatmsg_box.width - 8), 0, 16) + 1;
Darkvater@4957: 	if (lines >= MAX_CHAT_MESSAGES) return;
truelight@543: 
rubidium@6868: 	msg_count = GetChatMessageCount();
Darkvater@4957: 	/* We want to add more chat messages than there is free space for, remove 'old' */
Darkvater@4957: 	if (lines > MAX_CHAT_MESSAGES - msg_count) {
Darkvater@4957: 		int i = lines - (MAX_CHAT_MESSAGES - msg_count);
rubidium@6868: 		memmove(&_chatmsg_list[0], &_chatmsg_list[i], sizeof(_chatmsg_list[0]) * (msg_count - i));
Darkvater@4957: 		msg_count = MAX_CHAT_MESSAGES - lines;
truelight@543: 	}
truelight@543: 
Darkvater@4957: 	for (bufp = buf; lines != 0; lines--) {
rubidium@6868: 		ChatMessage *cmsg = &_chatmsg_list[msg_count++];
rubidium@6868: 		ttd_strlcpy(cmsg->message, bufp, sizeof(cmsg->message));
Darkvater@4957: 
Darkvater@4957: 		/* The default colour for a message is player colour. Replace this with
Darkvater@4957: 		 * white for any additional lines */
rubidium@6868: 		cmsg->color = (bufp == buf && color & IS_PALETTE_COLOR) ? color : (0x1D - 15) | IS_PALETTE_COLOR;
rubidium@6868: 		cmsg->end_date = _date + duration;
Darkvater@4957: 
Darkvater@4957: 		bufp += strlen(bufp) + 1; // jump to 'next line' in the formatted string
Darkvater@4957: 	}
truelight@543: 
rubidium@6868: 	_chatmessage_dirty = true;
truelight@543: }
truelight@543: 
rubidium@6868: void InitChatMessage()
truelight@543: {
tron@2639: 	uint i;
tron@2639: 
tron@2639: 	for (i = 0; i < MAX_CHAT_MESSAGES; i++) {
rubidium@6868: 		_chatmsg_list[i].message[0] = '\0';
tron@2639: 	}
truelight@543: }
truelight@543: 
rubidium@6868: /** Hide the chatbox */
rubidium@6868: void UndrawChatMessage()
truelight@543: {
rubidium@6868: 	if (_chatmessage_visible) {
richk@6720: 		Blitter *blitter = BlitterFactoryBase::GetCurrentBlitter();
rubidium@5679: 		/* Sometimes we also need to hide the cursor
rubidium@5679: 		 *   This is because both textmessage and the cursor take a shot of the
rubidium@5679: 		 *   screen before drawing.
rubidium@5679: 		 *   Now the textmessage takes his shot and paints his data before the cursor
rubidium@5679: 		 *   does, so in the shot of the cursor is the screen-data of the textmessage
rubidium@5679: 		 *   included when the cursor hangs somewhere over the textmessage. To
rubidium@5679: 		 *   avoid wrong repaints, we undraw the cursor in that case, and everything
rubidium@5679: 		 *   looks nicely ;)
rubidium@5679: 		 * (and now hope this story above makes sense to you ;))
rubidium@5679: 		 */
truelight@543: 
truelight@543: 		if (_cursor.visible) {
rubidium@6868: 			if (_cursor.draw_pos.x + _cursor.draw_size.x >= _chatmsg_box.x &&
rubidium@6868: 				_cursor.draw_pos.x <= _chatmsg_box.x + _chatmsg_box.width &&
rubidium@6868: 				_cursor.draw_pos.y + _cursor.draw_size.y >= _screen.height - _chatmsg_box.y - _chatmsg_box.height &&
rubidium@6868: 				_cursor.draw_pos.y <= _screen.height - _chatmsg_box.y) {
truelight@543: 				UndrawMouseCursor();
truelight@543: 			}
truelight@543: 		}
truelight@543: 
rubidium@6868: 		int x      = _chatmsg_box.x;
rubidium@6868: 		int y      = _screen.height - _chatmsg_box.y - _chatmsg_box.height;
rubidium@6868: 		int width  = _chatmsg_box.width;
rubidium@6868: 		int height = _chatmsg_box.height;
rubidium@6692: 		if (y < 0) {
rubidium@6868: 			height = max(height + y, min(_chatmsg_box.height, _screen.height));
rubidium@6692: 			y = 0;
rubidium@6692: 		}
rubidium@6692: 		if (x + width >= _screen.width) {
rubidium@6692: 			width = _screen.width - x;
rubidium@6692: 		}
rubidium@6700: 		if (width <= 0 || height <= 0) return;
rubidium@6692: 
rubidium@6868: 		_chatmessage_visible = false;
rubidium@5679: 		/* Put our 'shot' back to the screen */
rubidium@6868: 		blitter->CopyFromBuffer(blitter->MoveTo(_screen.dst_ptr, x, y), _chatmessage_backup, width, height);
rubidium@5679: 		/* And make sure it is updated next time */
richk@6720: 		_video_driver->MakeDirty(x, y, width, height);
truelight@543: 
rubidium@6868: 		_chatmessage_dirty = true;
truelight@543: 	}
truelight@543: }
truelight@543: 
richk@6719: /** Check if a message is expired every day */
rubidium@6868: void ChatMessageDailyLoop()
truelight@543: {
tron@2639: 	uint i;
tron@2639: 
truelight@1595: 	for (i = 0; i < MAX_CHAT_MESSAGES; i++) {
rubidium@6868: 		ChatMessage *cmsg = &_chatmsg_list[i];
rubidium@6868: 		if (cmsg->message[0] == '\0') continue;
truelight@1595: 
Darkvater@4957: 		/* Message has expired, remove from the list */
rubidium@6868: 		if (cmsg->end_date < _date) {
truelight@1595: 			/* Move the remaining messages over the current message */
rubidium@6868: 			if (i != MAX_CHAT_MESSAGES - 1) memmove(cmsg, cmsg + 1, sizeof(*cmsg) * (MAX_CHAT_MESSAGES - i - 1));
truelight@1595: 
truelight@1595: 			/* Mark the last item as empty */
rubidium@6868: 			_chatmsg_list[MAX_CHAT_MESSAGES - 1].message[0] = '\0';
rubidium@6868: 			_chatmessage_dirty = true;
truelight@1595: 
truelight@1595: 			/* Go one item back, because we moved the array 1 to the left */
truelight@543: 			i--;
truelight@543: 		}
truelight@543: 	}
truelight@543: }
truelight@543: 
rubidium@6868: /** Draw the chat message-box */
rubidium@6868: void DrawChatMessage()
truelight@543: {
richk@6720: 	Blitter *blitter = BlitterFactoryBase::GetCurrentBlitter();
rubidium@6868: 	if (!_chatmessage_dirty) return;
truelight@543: 
rubidium@5679: 	/* First undraw if needed */
rubidium@6868: 	UndrawChatMessage();
truelight@543: 
Darkvater@4959: 	if (_iconsole_mode == ICONSOLE_FULL) return;
truelight@543: 
truelight@1595: 	/* Check if we have anything to draw at all */
rubidium@6868: 	uint count = GetChatMessageCount();
Darkvater@4960: 	if (count == 0) return;
truelight@543: 
rubidium@6868: 	int x      = _chatmsg_box.x;
rubidium@6868: 	int y      = _screen.height - _chatmsg_box.y - _chatmsg_box.height;
rubidium@6868: 	int width  = _chatmsg_box.width;
rubidium@6868: 	int height = _chatmsg_box.height;
rubidium@6692: 	if (y < 0) {
rubidium@6868: 		height = max(height + y, min(_chatmsg_box.height, _screen.height));
rubidium@6692: 		y = 0;
rubidium@6692: 	}
rubidium@6692: 	if (x + width >= _screen.width) {
rubidium@6692: 		width = _screen.width - x;
rubidium@6692: 	}
rubidium@6700: 	if (width <= 0 || height <= 0) return;
rubidium@6700: 
rubidium@6868: 	assert(blitter->BufferSize(width, height) < (int)sizeof(_chatmessage_backup));
richk@6720: 
rubidium@5679: 	/* Make a copy of the screen as it is before painting (for undraw) */
rubidium@6868: 	blitter->CopyToBuffer(blitter->MoveTo(_screen.dst_ptr, x, y), _chatmessage_backup, width, height);
truelight@543: 
Darkvater@4960: 	_cur_dpi = &_screen; // switch to _screen painting
truelight@543: 
rubidium@6868: 	/* Paint a half-transparent box behind the chat messages */
Darkvater@4960: 	GfxFillRect(
rubidium@6868: 			_chatmsg_box.x,
rubidium@6868: 			_screen.height - _chatmsg_box.y - count * 13 - 2,
rubidium@6868: 			_chatmsg_box.x + _chatmsg_box.width - 1,
rubidium@6868: 			_screen.height - _chatmsg_box.y - 2,
peter1138@5919: 			PALETTE_TO_TRANSPARENT | (1 << USE_COLORTABLE) // black, but with some alpha for background
Darkvater@4960: 		);
truelight@1595: 
rubidium@6868: 	/* Paint the chat messages starting with the lowest at the bottom */
rubidium@6692: 	for (uint y = 13; count-- != 0; y += 13) {
rubidium@6868: 		DoDrawString(_chatmsg_list[count].message, _chatmsg_box.x + 3, _screen.height - _chatmsg_box.y - y + 1, _chatmsg_list[count].color);
richk@6719: 	}
truelight@543: 
rubidium@5679: 	/* Make sure the data is updated next flush */
richk@6720: 	_video_driver->MakeDirty(x, y, width, height);
truelight@543: 
rubidium@6868: 	_chatmessage_visible = true;
rubidium@6868: 	_chatmessage_dirty = false;
truelight@543: }
truelight@543: 
rubidium@6870: /* Text Effects */
rubidium@6870: /**
rubidium@6870:  * Mark the area of the text effect as dirty.
rubidium@6870:  *
rubidium@6870:  * This function marks the area of a text effect as dirty for repaint.
rubidium@6870:  *
rubidium@6870:  * @param te The TextEffect to mark the area dirty
rubidium@6870:  * @ingroup dirty
rubidium@6870:  */
truelight@0: static void MarkTextEffectAreaDirty(TextEffect *te)
truelight@0: {
rubidium@6870: 	/* Width and height of the text effect are doubled, so they are correct in both zoom out levels 1x and 2x. */
truelight@0: 	MarkAllViewportsDirty(
truelight@0: 		te->x,
truelight@0: 		te->y - 1,
truelight@0: 		(te->right - te->x)*2 + te->x + 1,
truelight@0: 		(te->bottom - (te->y - 1)) * 2 + (te->y - 1) + 1
truelight@0: 	);
truelight@0: }
truelight@0: 
richk@6720: TextEffectID AddTextEffect(StringID msg, int x, int y, uint16 duration, TextEffectMode mode)
truelight@0: {
truelight@0: 	TextEffect *te;
truelight@0: 	int w;
truelight@0: 	char buffer[100];
richk@6720: 	TextEffectID i;
truelight@0: 
richk@6720: 	if (_game_mode == GM_MENU) return INVALID_TE_ID;
truelight@193: 
richk@6720: 	/* Look for a free spot in the text effect array */
richk@6720: 	for (i = 0; i < _num_text_effects; i++) {
richk@6720: 		if (_text_effect_list[i].string_id == INVALID_STRING_ID) break;
truelight@0: 	}
truelight@0: 
richk@6720: 	/* If there is none found, we grow the array */
richk@6720: 	if (i == _num_text_effects) {
richk@6720: 		_num_text_effects += 25;
richk@6720: 		_text_effect_list = (TextEffect*) realloc(_text_effect_list, _num_text_effects * sizeof(TextEffect));
richk@6720: 		for (; i < _num_text_effects; i++) _text_effect_list[i].string_id = INVALID_STRING_ID;
richk@6720: 		i = _num_text_effects - 1;
richk@6720: 	}
richk@6720: 
richk@6720: 	te = &_text_effect_list[i];
richk@6720: 
richk@6720: 	/* Start defining this object */
truelight@0: 	te->string_id = msg;
truelight@0: 	te->duration = duration;
truelight@0: 	te->y = y - 5;
truelight@0: 	te->bottom = y + 5;
tron@534: 	te->params_1 = GetDParam(0);
tron@534: 	te->params_2 = GetDParam(4);
richk@6720: 	te->mode = mode;
truelight@0: 
Darkvater@4912: 	GetString(buffer, msg, lastof(buffer));
Darkvater@4609: 	w = GetStringBoundingBox(buffer).width;
truelight@0: 
truelight@0: 	te->x = x - (w >> 1);
truelight@0: 	te->right = x + (w >> 1) - 1;
truelight@0: 	MarkTextEffectAreaDirty(te);
richk@6720: 
richk@6720: 	return i;
richk@6720: }
richk@6720: 
richk@6720: void UpdateTextEffect(TextEffectID te_id, StringID msg)
richk@6720: {
richk@6720: 	assert(te_id < _num_text_effects);
richk@6720: 	TextEffect *te;
richk@6720: 
richk@6720: 	/* Update details */
richk@6720: 	te = &_text_effect_list[te_id];
richk@6720: 	te->string_id = msg;
richk@6720: 	te->params_1 = GetDParam(0);
richk@6720: 	te->params_2 = GetDParam(4);
richk@6720: 
rubidium@6870: 	/* Update width of text effect */
rubidium@6870: 	char buffer[100];
rubidium@6870: 	GetString(buffer, msg, lastof(buffer));
rubidium@6870: 	int w = GetStringBoundingBox(buffer).width;
rubidium@6870: 
rubidium@6870: 	/* Only allow to make it broader, so it completely covers the old text. That avoids remnants of the old text. */
rubidium@6870: 	int right_new = te->x + w;
rubidium@6870: 	if (te->right < right_new) te->right = right_new;
rubidium@6870: 
richk@6720: 	MarkTextEffectAreaDirty(te);
richk@6720: }
richk@6720: 
richk@6720: void RemoveTextEffect(TextEffectID te_id)
richk@6720: {
richk@6720: 	assert(te_id < _num_text_effects);
richk@6720: 	TextEffect *te;
richk@6720: 
richk@6720: 	te = &_text_effect_list[te_id];
richk@6720: 	MarkTextEffectAreaDirty(te);
richk@6720: 	te->string_id = INVALID_STRING_ID;
truelight@0: }
truelight@0: 
truelight@0: static void MoveTextEffect(TextEffect *te)
truelight@0: {
richk@6720: 	/* Never expire for duration of 0xFFFF */
richk@6720: 	if (te->duration == 0xFFFF) return;
truelight@0: 	if (te->duration < 8) {
tron@2470: 		te->string_id = INVALID_STRING_ID;
truelight@0: 	} else {
tron@2549: 		te->duration -= 8;
truelight@0: 		te->y--;
truelight@0: 		te->bottom--;
truelight@0: 	}
truelight@0: 	MarkTextEffectAreaDirty(te);
truelight@0: }
truelight@0: 
rubidium@6573: void MoveAllTextEffects()
truelight@0: {
richk@6720: 	for (TextEffectID i = 0; i < _num_text_effects; i++) {
richk@6720: 		TextEffect *te = &_text_effect_list[i];
richk@6720: 		if (te->string_id != INVALID_STRING_ID && te->mode == TE_RISING) MoveTextEffect(te);
truelight@0: 	}
truelight@0: }
truelight@0: 
rubidium@6573: void InitTextEffects()
truelight@0: {
richk@6720: 	if (_text_effect_list == NULL) _text_effect_list = MallocT<TextEffect>(_num_text_effects);
truelight@0: 
richk@6720: 	for (TextEffectID i = 0; i < _num_text_effects; i++) _text_effect_list[i].string_id = INVALID_STRING_ID;
truelight@0: }
truelight@0: 
truelight@0: void DrawTextEffects(DrawPixelInfo *dpi)
truelight@0: {
tron@4469: 	switch (dpi->zoom) {
richk@6719: 		case ZOOM_LVL_NORMAL:
richk@6720: 			for (TextEffectID i = 0; i < _num_text_effects; i++) {
richk@6720: 				TextEffect *te = &_text_effect_list[i];
tron@4469: 				if (te->string_id != INVALID_STRING_ID &&
tron@4469: 						dpi->left <= te->right &&
tron@4469: 						dpi->top  <= te->bottom &&
tron@4469: 						dpi->left + dpi->width  > te->x &&
tron@4469: 						dpi->top  + dpi->height > te->y) {
rubidium@6871: 					if (te->mode == TE_RISING || (_patches.loading_indicators && !IsTransparencySet(TO_LOADING))) {
richk@6720: 						AddStringToDraw(te->x, te->y, te->string_id, te->params_1, te->params_2);
richk@6720: 					}
tron@4469: 				}
tron@4469: 			}
tron@4469: 			break;
truelight@0: 
richk@6719: 		case ZOOM_LVL_OUT_2X:
richk@6720: 			for (TextEffectID i = 0; i < _num_text_effects; i++) {
richk@6720: 				TextEffect *te = &_text_effect_list[i];
tron@4469: 				if (te->string_id != INVALID_STRING_ID &&
tron@4469: 						dpi->left <= te->right  * 2 - te->x &&
tron@4469: 						dpi->top  <= te->bottom * 2 - te->y &&
tron@4469: 						dpi->left + dpi->width  > te->x &&
tron@4469: 						dpi->top  + dpi->height > te->y) {
rubidium@6871: 					if (te->mode == TE_RISING || (_patches.loading_indicators && !IsTransparencySet(TO_LOADING))) {
richk@6720: 						AddStringToDraw(te->x, te->y, (StringID)(te->string_id - 1), te->params_1, te->params_2);
richk@6720: 					}
tron@4469: 				}
tron@4469: 			}
tron@4469: 			break;
richk@6719: 
richk@6719: 		case ZOOM_LVL_OUT_4X:
richk@6719: 		case ZOOM_LVL_OUT_8X:
richk@6719: 			break;
richk@6719: 
richk@6719: 		default: NOT_REACHED();
truelight@0: 	}
truelight@0: }
truelight@0: 
rubidium@6871: /** The table/list with animated tiles. */
rubidium@6871: TileIndex *_animated_tile_list = NULL;
rubidium@6871: /** The number of animated tiles in the current state. */
rubidium@6871: uint _animated_tile_count = 0;
rubidium@6871: /** The number of slots for animated tiles allocated currently. */
rubidium@6871: static uint _animated_tile_allocated = 0;
rubidium@6871: 
rubidium@6871: /**
rubidium@6871:  * Removes the given tile from the animated tile table.
rubidium@6871:  * @param tile the tile to remove
rubidium@6871:  */
tron@1977: void DeleteAnimatedTile(TileIndex tile)
truelight@0: {
rubidium@6871: 	for (TileIndex *ti = _animated_tile_list; ti < _animated_tile_list + _animated_tile_count; ti++) {
tron@1977: 		if (tile == *ti) {
rubidium@6871: 			/* Remove the hole
rubidium@6871: 			 * The order of the remaining elements must stay the same, otherwise the animation loop
rubidium@6871: 			 * may miss a tile; that's why we must use memmove instead of just moving the last element.
rubidium@6871: 			 */
rubidium@6871: 			memmove(ti, ti + 1, (_animated_tile_list + _animated_tile_count - (ti + 1)) * sizeof(*ti));
rubidium@6871: 			_animated_tile_count--;
truelight@0: 			MarkTileDirtyByTile(tile);
truelight@0: 			return;
truelight@193: 		}
truelight@0: 	}
truelight@0: }
truelight@0: 
rubidium@6871: /**
rubidium@6871:  * Add the given tile to the animated tile table (if it does not exist
rubidium@6871:  * on that table yet). Also increases the size of the table if necessary.
rubidium@6871:  * @param tile the tile to make animated
rubidium@6871:  */
rubidium@6871: void AddAnimatedTile(TileIndex tile)
truelight@0: {
rubidium@6871: 	MarkTileDirtyByTile(tile);
truelight@0: 
rubidium@6871: 	for (const TileIndex *ti = _animated_tile_list; ti < _animated_tile_list + _animated_tile_count; ti++) {
rubidium@6871: 		if (tile == *ti) return;
truelight@193: 	}
truelight@0: 
rubidium@6871: 	/* Table not large enough, so make it larger */
rubidium@6871: 	if (_animated_tile_count == _animated_tile_allocated) {
rubidium@6871: 		_animated_tile_allocated *= 2;
rubidium@6871: 		_animated_tile_list = ReallocT<TileIndex>(_animated_tile_list, _animated_tile_allocated);
rubidium@6871: 	}
rubidium@6871: 
rubidium@6871: 	_animated_tile_list[_animated_tile_count] = tile;
rubidium@6871: 	_animated_tile_count++;
truelight@0: }
truelight@0: 
rubidium@6871: /**
rubidium@6871:  * Animate all tiles in the animated tile list, i.e.\ call AnimateTile on them.
rubidium@6871:  */
rubidium@6573: void AnimateAnimatedTiles()
truelight@0: {
rubidium@6871: 	const TileIndex *ti = _animated_tile_list;
rubidium@6871: 	while (ti < _animated_tile_list + _animated_tile_count) {
rubidium@6871: 		const TileIndex curr = *ti;
rubidium@6871: 		AnimateTile(curr);
rubidium@6871: 		/* During the AnimateTile call, DeleteAnimatedTile could have been called,
rubidium@6871: 		 * deleting an element we've already processed and pushing the rest one
rubidium@6871: 		 * slot to the left. We can detect this by checking whether the index
rubidium@6871: 		 * in the current slot has changed - if it has, an element has been deleted,
rubidium@6871: 		 * and we should process the current slot again instead of going forward.
rubidium@6871: 		 * NOTE: this will still break if more than one animated tile is being
rubidium@6871: 		 *       deleted during the same AnimateTile call, but no code seems to
rubidium@6871: 		 *       be doing this anyway.
rubidium@6871: 		 */
rubidium@6871: 		if (*ti == curr) ++ti;
truelight@0: 	}
truelight@0: }
truelight@0: 
rubidium@6871: /**
rubidium@6871:  * Initialize all animated tile variables to some known begin point
rubidium@6871:  */
rubidium@6573: void InitializeAnimatedTiles()
truelight@0: {
rubidium@6871: 	_animated_tile_list = ReallocT<TileIndex>(_animated_tile_list, 256);
rubidium@6871: 	_animated_tile_count = 0;
rubidium@6871: 	_animated_tile_allocated = 256;
truelight@0: }
truelight@0: 
rubidium@6871: /**
rubidium@6871:  * Save the ANIT chunk.
rubidium@6871:  */
rubidium@6871: static void Save_ANIT()
truelight@0: {
rubidium@6871: 	SlSetLength(_animated_tile_count * sizeof(*_animated_tile_list));
rubidium@6871: 	SlArray(_animated_tile_list, _animated_tile_count, SLE_UINT32);
truelight@0: }
truelight@0: 
rubidium@6871: /**
rubidium@6871:  * Load the ANIT chunk; the chunk containing the animated tiles.
rubidium@6871:  */
rubidium@6871: static void Load_ANIT()
rubidium@6871: {
rubidium@6871: 	/* Before version 80 we did NOT have a variable length animated tile table */
rubidium@6871: 	if (CheckSavegameVersion(80)) {
rubidium@6871: 		/* In pre version 6, we has 16bit per tile, now we have 32bit per tile, convert it ;) */
rubidium@6871: 		SlArray(_animated_tile_list, 256, CheckSavegameVersion(6) ? (SLE_FILE_U16 | SLE_VAR_U32) : SLE_UINT32);
truelight@0: 
rubidium@6871: 		for (_animated_tile_count = 0; _animated_tile_count < 256; _animated_tile_count++) {
rubidium@6871: 			if (_animated_tile_list[_animated_tile_count] == 0) break;
rubidium@6871: 		}
rubidium@6871: 		return;
rubidium@6871: 	}
rubidium@6871: 
rubidium@6871: 	_animated_tile_count = SlGetFieldLength() / sizeof(*_animated_tile_list);
rubidium@6871: 
rubidium@6871: 	/* Determine a nice rounded size for the amount of allocated tiles */
rubidium@6871: 	_animated_tile_allocated = 256;
rubidium@6871: 	while (_animated_tile_allocated < _animated_tile_count) _animated_tile_allocated *= 2;
rubidium@6871: 
rubidium@6871: 	_animated_tile_list = ReallocT<TileIndex>(_animated_tile_list, _animated_tile_allocated);
rubidium@6871: 	SlArray(_animated_tile_list, _animated_tile_count, SLE_UINT32);
rubidium@6871: }
rubidium@6871: 
rubidium@6871: /**
rubidium@6871:  * "Definition" imported by the saveload code to be able to load and save
rubidium@6871:  * the animated tile table.
rubidium@6871:  */
rubidium@5838: extern const ChunkHandler _animated_tile_chunk_handlers[] = {
rubidium@6871: 	{ 'ANIT', Save_ANIT, Load_ANIT, CH_RIFF | CH_LAST},
truelight@0: };