mirror of
https://github.com/OpenRCT2/OpenRCT2
synced 2026-01-19 13:03:11 +01:00
151 lines
3.8 KiB
C
151 lines
3.8 KiB
C
/*****************************************************************************
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* Copyright (c) 2014 Ted John
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* OpenRCT2, an open source clone of Roller Coaster Tycoon 2.
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*
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* This file is part of OpenRCT2.
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*
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* OpenRCT2 is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*****************************************************************************/
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#include "addresses.h"
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#include <string.h>
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#include "sprite.h"
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rct_sprite* g_sprite_list = RCT2_ADDRESS(RCT2_ADDRESS_SPRITE_LIST, rct_sprite);
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/**
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*
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* rct2: 0x006736C7
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*/
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void create_balloon(int x, int y, int z, int colour)
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{
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RCT2_CALLPROC_X(0x006736C7, x, colour << 8, y, z, 0, 0, 0);
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}
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/*
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*
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* rct2: 0x0069EB13
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*/
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void reset_sprite_list(){
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RCT2_GLOBAL(0x1388698, uint16) = 0;
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memset(g_sprite_list, 0, sizeof(rct_sprite)* 0x2710);
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for (int i = 0; i < 6; ++i){
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RCT2_ADDRESS(RCT2_ADDRESS_SPRITES_NEXT_INDEX, uint16)[i] = -1;
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RCT2_ADDRESS(0x13573C8, uint16)[i] = 0;
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}
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rct_sprite* previous_spr = (rct_sprite*)SPRITE_INDEX_NULL;
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rct_sprite* spr = g_sprite_list;
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for (int i = 0; i < 0x2710; ++i){
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spr->unknown.sprite_identifier = 0xFF;
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spr->unknown.sprite_index = i;
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spr->unknown.next = SPRITE_INDEX_NULL;
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spr->unknown.var_08 = 0;
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if (previous_spr != (rct_sprite*)SPRITE_INDEX_NULL){
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spr->unknown.previous = previous_spr->unknown.sprite_index;
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previous_spr->unknown.next = i;
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}
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else{
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spr->unknown.previous = SPRITE_INDEX_NULL;
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RCT2_GLOBAL(RCT2_ADDRESS_SPRITES_NEXT_INDEX, uint16) = i;
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}
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previous_spr = spr;
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spr++;
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}
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RCT2_GLOBAL(0x13573C8, uint16) = 0x2710;
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//RCT2_CALLPROC_EBPSAFE(0x0069EBE4);
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reset_0x69EBE4();
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}
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/*
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*
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* rct: 0x0069EBE4
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* This function looks as though it sets some sort of order for sprites.
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* Sprites can share thier position if this is the case.
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*/
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void reset_0x69EBE4(){
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//RCT2_CALLPROC_EBPSAFE(0x0069EBE4);
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//return;
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memset((uint16*)0xF1EF60, -1, 0x10001*2);
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rct_sprite* spr = g_sprite_list;
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for (; spr < (rct_sprite*)RCT2_ADDRESS_SPRITES_NEXT_INDEX; spr++){
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if (spr->unknown.sprite_identifier != 0xFF){
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uint32 edi = spr->unknown.x;
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if ((uint16)(spr->unknown.x) == SPRITE_LOCATION_NULL){
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edi = 0x10000;
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}
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else{
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int ecx = spr->unknown.y;
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ecx >>= 5;
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edi &= 0x1FE0;
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edi <<= 3;
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edi |= ecx;
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}
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uint16 ax = RCT2_ADDRESS(0xF1EF60,uint16)[edi];
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RCT2_ADDRESS(0xF1EF60,uint16)[edi] = spr->unknown.sprite_index;
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spr->unknown.var_02 = ax;
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}
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}
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}
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/*
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* rct2: 0x0069EC6B
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* bl: unclear what this does
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*/
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rct_sprite *create_sprite(uint8 bl)
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{
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int ecx = 0xA;
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if ((bl & 2) != 0)
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{
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// 69EC96;
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uint16 cx = 0x12C - RCT2_GLOBAL(0x13573CE, uint16);
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if (cx >= RCT2_GLOBAL(0x13573C8, uint16))
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{
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return NULL;
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}
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ecx = 6;
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}
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else if (RCT2_GLOBAL(0x13573C8, uint16) <= 0)
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{
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return NULL;
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}
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rct_unk_sprite *sprite = &(g_sprite_list[RCT2_GLOBAL(RCT2_ADDRESS_SPRITES_NEXT_INDEX, uint16)]).unknown;
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RCT2_CALLPROC_X(0x0069ED0B, 0, 0, ecx, 0, (int)sprite, 0, 0);
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sprite->x = SPRITE_LOCATION_NULL;
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sprite->y = SPRITE_LOCATION_NULL;
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sprite->z = 0;
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sprite->name_string_idx = 0;
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sprite->var_14 = 0x10;
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sprite->pad_09 = 0x14;
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sprite->var_15 = 0x8;
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sprite->pad_0C[0] = 0x0;
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sprite->var_16 = SPRITE_LOCATION_NULL;
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sprite->var_02 = RCT2_GLOBAL(0xF3EF60, uint16);
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RCT2_GLOBAL(0xF3EF60, uint16) = sprite->sprite_index;
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return (rct_sprite*)sprite;
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} |