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(svn r10508) -Codechange: allow customizable animation schemes for industries.

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rubidium
2007-07-11 15:03:29 +00:00
parent 8d4b7ac33b
commit 79d04412b0
8 changed files with 150 additions and 11 deletions
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102
src/newgrf_industrytiles.cpp
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@@ -15,6 +15,7 @@
#include "newgrf_spritegroup.h"
#include "newgrf_callbacks.h"
#include "newgrf_industries.h"
#include "newgrf_industrytiles.h"
#include "newgrf_text.h"
#include "industry_map.h"
#include "clear_map.h"
@@ -249,3 +250,104 @@ bool PerformIndustryTileSlopeCheck(TileIndex tile, const IndustryTileSpec *its,
default: _error_message = GetGRFStringID(its->grf_prop.grffile->grfid, 0xD000 + callback_res); return false;
}
}
void AnimateNewIndustryTile(TileIndex tile)
{
Industry *ind = GetIndustryByTile(tile);
IndustryGfx gfx = GetIndustryGfx(tile);
const IndustryTileSpec *itspec = GetIndustryTileSpec(gfx);
byte animation_speed = itspec->animation_speed;
if (HASBIT(itspec->callback_flags, CBM_INDT_ANIM_SPEED)) {
uint16 callback_res = GetIndustryTileCallback(CBID_INDTILE_ANIMATION_SPEED, 0, 0, gfx, ind, tile);
if (callback_res != CALLBACK_FAILED) animation_speed = clamp(callback_res & 0xFF, 0, 16);
}
/* An animation speed of 2 means the animation frame changes 4 ticks, and
* increasing this value by one doubles the wait. 0 is the minimum value
* allowed for animation_speed, which corresponds to 30ms, and 16 is the
* maximum, corresponding to around 33 minutes. */
if ((_tick_counter % (1 << animation_speed)) != 0) return;
bool frame_set_by_callback = false;
byte frame = GetIndustryAnimationState(tile);
uint16 num_frames = GB(itspec->animation_info, 0, 8) + 1;
if (HASBIT(itspec->callback_flags, CBM_INDT_ANIM_NEXT_FRAME)) {
uint16 callback_res = GetIndustryTileCallback(CBID_INDTILE_ANIM_NEXT_FRAME, HASBIT(itspec->animation_special_flags, 0) ? Random() : 0, 0, gfx, ind, tile);
if (callback_res != CALLBACK_FAILED) {
frame_set_by_callback = true;
switch (callback_res & 0xFF) {
case 0xFF:
DeleteAnimatedTile(tile);
break;
case 0xFE:
/* Carry on as normal. */
frame_set_by_callback = false;
break;
default:
frame = callback_res & 0xFF;
break;
}
}
}
if (!frame_set_by_callback) {
if (frame < num_frames) {
frame++;
} else if (frame == num_frames && GB(itspec->animation_info, 8, 8) == 1) {
/* This animation loops, so start again from the beginning */
frame = 0;
} else {
/* This animation doesn't loop, so stay here */
DeleteAnimatedTile(tile);
}
}
SetIndustryAnimationState(tile, frame);
MarkTileDirtyByTile(tile);
}
static void ChangeIndustryTileAnimationFrame(TileIndex tile, IndustryAnimationTrigger iat, uint32 random_bits, IndustryGfx gfx, Industry *ind)
{
uint16 callback_res = GetIndustryTileCallback(CBID_INDTILE_ANIM_START_STOP, random_bits, iat, gfx, ind, tile);
if (callback_res == CALLBACK_FAILED) return;
switch (callback_res & 0xFF) {
case 0xFD: /* Do nothing. */ break;
case 0xFE: AddAnimatedTile(tile); break;
case 0xFF: DeleteAnimatedTile(tile); break;
default:
SetIndustryAnimationState(tile, callback_res & 0xFF);
AddAnimatedTile(tile);
break;
}
}
bool StartStopIndustryTileAnimation(TileIndex tile, IndustryAnimationTrigger iat, uint32 random)
{
IndustryGfx gfx = GetIndustryGfx(tile);
const IndustryTileSpec *itspec = GetIndustryTileSpec(gfx);
if (!HASBIT(itspec->animation_triggers, iat)) return false;
Industry *ind = GetIndustryByTile(tile);
ChangeIndustryTileAnimationFrame(tile, iat, random, gfx, ind);
return true;
}
bool StartStopIndustryTileAnimation(const Industry *ind, IndustryAnimationTrigger iat)
{
bool ret = true;
uint32 random = Random();
BEGIN_TILE_LOOP(tile, ind->width, ind->height, ind->xy)
if (IsTileType(tile, MP_INDUSTRY) && GetIndustryIndex(tile) == ind->index) {
ret &= StartStopIndustryTileAnimation(tile, iat, random);
SB(random, 0, 16, Random());
}
END_TILE_LOOP(tile, ind->width, ind->height, ind->xy)
return ret;
}