blobwarsAttrition/src/world/map.c

341 lines
6.9 KiB
C

/*
Copyright (C) 2018 Parallel Realities
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "map.h"
static void loadMapData(void);
static void loadCommonTiles(void);
static void loadTileset(void);
static void loadDecals(void);
static SDL_Rect *loadTile(char *filename);
static int MAX_Y;
static Texture *atlasTexture;
static SDL_Rect *tiles[MAP_TILE_MAX];
static SDL_Rect *decals[8];
void initMap(void)
{
memset(&world.map, 0, sizeof(Map));
world.map.bounds.x = MAP_WIDTH * MAP_TILE_SIZE;
world.map.bounds.y = MAP_HEIGHT * MAP_TILE_SIZE;
world.map.bounds.w = 0;
world.map.bounds.h = 0;
atlasTexture = getTexture("gfx/atlas/atlas.png");
loadMapData();
loadCommonTiles();
loadTileset();
loadDecals();
}
void drawMap(void)
{
int mx, x1, x2, my, y1, y2, tile, decal, x, y;
mx = camera.x / MAP_TILE_SIZE;
x1 = (camera.x % MAP_TILE_SIZE) * -1;
x2 = x1 + MAP_RENDER_WIDTH * MAP_TILE_SIZE + (x1 == 0 ? 0 : MAP_TILE_SIZE);
my = camera.y / MAP_TILE_SIZE;
y1 = (camera.y % MAP_TILE_SIZE) * -1;
y2 = y1 + MAP_RENDER_HEIGHT * MAP_TILE_SIZE + (y1 == 0 ? 0 : MAP_TILE_SIZE);
tile = 0;
decal = 0;
for (x = x1; x < x2; x += MAP_TILE_SIZE)
{
for (y = y1; y < y2; y += MAP_TILE_SIZE)
{
if (mx < MAP_WIDTH && my < MAP_HEIGHT && my <= MAX_Y)
{
tile = world.map.data[mx][my];
if (world.mapAnimTimer == 0)
{
if (tile >= MAP_TILE_ANIMATED_WATER && tile < MAP_TILE_ANIMATED_SLIME)
{
world.map.data[mx][my] = tile = rrnd(MAP_TILE_ANIMATED_WATER, MAP_TILE_ANIMATED_SLIME - 1);
}
if (tile >= MAP_TILE_ANIMATED_SLIME && tile < MAP_TILE_ANIMATED_LAVA)
{
world.map.data[mx][my] = tile = rrnd(MAP_TILE_ANIMATED_SLIME, MAP_TILE_ANIMATED_LAVA - 1);
}
if (tile >= MAP_TILE_ANIMATED_LAVA && tile < MAP_TILE_OUTSIDE)
{
world.map.data[mx][my] = tile = rrnd(MAP_TILE_ANIMATED_LAVA, MAP_TILE_OUTSIDE - 1);
}
}
if (tile != MAP_TILE_AIR)
{
if (tile >= MAP_TILE_SOLID && tile < MAP_TILE_NON_SOLID)
{
blitRect(atlasTexture->texture, x + 2, y + 2, tiles[MAP_TILE_OUTSIDE], 0);
}
blitRect(atlasTexture->texture, x, y, tiles[tile], 0);
decal = world.map.decal[mx][my];
if (decal != 0)
{
blitRect(atlasTexture->texture, x, y, decals[decal - 1], 0);
}
}
}
else
{
blitRect(atlasTexture->texture, x, y, tiles[MAP_TILE_OUTSIDE], 0);
}
my++;
}
my = camera.y / MAP_TILE_SIZE;
mx++;
}
}
int isWithinMap(int x, int y)
{
return (x >= 0 && y >= 0 && x < MAP_WIDTH && y < MAP_HEIGHT);
}
int isSolid(int x, int y)
{
if (!isWithinMap(x, y))
{
return 1;
}
if ((world.map.data[x][y] >= MAP_TILE_SOLID) && (world.map.data[x][y] < MAP_TILE_NON_SOLID))
{
return 1;
}
return 0;
}
void addBloodDecal(int x, int y)
{
if (isSolid(x, y) && world.map.decal[x][y] == 0)
{
world.map.decal[x][y] = (int) rrnd(1, 4);
}
}
void addScorchDecal(int x, int y)
{
if (isSolid(x, y) && world.map.decal[x][y] == 0)
{
world.map.decal[x][y] = (int) rrnd(5, 8);
}
}
int isLiquid(int x, int y)
{
return isWithinMap(x, y) && world.map.data[x][y] > MAP_TILE_AIR && world.map.data[x][y] < MAP_TILE_SOLID;
}
int isWalkable(int x, int y)
{
return isSolid(x, y);
}
static void calculateMapBounds(void)
{
int x, y;
for (y = 0 ; y < MAP_HEIGHT; y++)
{
for (x = 0 ; x < MAP_WIDTH; x++)
{
if (world.map.data[x][y] != 0)
{
if (x < world.map.bounds.x)
{
world.map.bounds.x = x;
}
if (x > world.map.bounds.w)
{
world.map.bounds.w = x;
}
if (y < world.map.bounds.y)
{
world.map.bounds.y = y;
}
if (y > world.map.bounds.h)
{
world.map.bounds.h = y;
}
}
}
}
if (world.map.bounds.h - MAP_RENDER_HEIGHT < world.map.bounds.y)
{
world.map.bounds.y = 0;
}
world.map.bounds.x = (int) limit(world.map.bounds.x, 0, MAP_WIDTH - MAP_RENDER_WIDTH);
world.map.bounds.y = (int) limit(world.map.bounds.y, 0, MAP_HEIGHT - MAP_RENDER_HEIGHT);
world.map.bounds.x *= MAP_TILE_SIZE;
world.map.bounds.y *= MAP_TILE_SIZE;
world.map.bounds.w *= MAP_TILE_SIZE;
world.map.bounds.h *= MAP_TILE_SIZE;
world.map.bounds.w -= SCREEN_WIDTH;
world.map.bounds.h -= SCREEN_HEIGHT;
world.map.bounds.w += MAP_TILE_SIZE;
world.map.bounds.h += MAP_TILE_SIZE;
SDL_LogMessage(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_DEBUG, "Map bounds [%d, %d, %d, %d]", world.map.bounds.x, world.map.bounds.y, world.map.bounds.w, world.map.bounds.h);
MAX_Y = 0;
for (y = 0; y < MAP_HEIGHT; y++)
{
for (x = 0; x < MAP_WIDTH; x++)
{
if (world.map.data[x][y] != 0)
{
if (y > MAX_Y)
{
MAX_Y = y;
}
}
}
}
}
static void loadMapData(void)
{
char filename[MAX_FILENAME_LENGTH];
char *data, *p;
int i, x, y;
sprintf(filename, "data/maps/raw/%s.raw.z", world.id);
SDL_LogMessage(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO, "Loading %s", filename);
data = readCompressedFile(filename);
p = data;
for (y = 0 ; y < MAP_HEIGHT ; y++)
{
for (x = 0 ; x < MAP_WIDTH ; x++)
{
sscanf(p, "%d", &i);
if (!world.isOutpostMission)
{
if (i >= 4 && i <= 7)
{
i = rrnd(4, 7);
}
}
else
{
if (i >= 4 && i <= 8)
{
i = rrnd(4, 8);
}
}
if (i >= 200 && i <= 203)
{
i = rrnd(200, 203);
}
world.map.data[x][y] = i;
do {p++;} while (*p != ' ');
}
}
free(data);
calculateMapBounds();
}
static void loadCommonTiles(void)
{
int i;
char filename[MAX_FILENAME_LENGTH];
tiles[1] = loadTile("gfx/tiles/common/1.png");
tiles[2] = loadTile("gfx/tiles/common/2.png");
tiles[3] = loadTile("gfx/tiles/common/3.png");
for (i = MAP_TILE_ANIMATED_WATER ; i < MAP_TILE_MAX ; i++)
{
sprintf(filename, "gfx/tiles/common/%d.png", i);
tiles[i] = loadTile(filename);
}
}
static void loadTileset(void)
{
int i;
char filename[MAX_FILENAME_LENGTH];
for (i = MAP_TILE_SOLID ; i < MAP_TILE_ANIMATED_WATER ; i++)
{
sprintf(filename, "gfx/tiles/%s/%d.png", world.tileset, i);
tiles[i] = loadTile(filename);
}
}
static SDL_Rect *loadTile(char *filename)
{
return &getImageFromAtlas(filename)->rect;
}
static void loadDecals(void)
{
int i;
char filename[MAX_FILENAME_LENGTH];
for (i = 0 ; i < 4 ; i++)
{
sprintf(filename, "gfx/decals/blood%d.png", (i + 1));
decals[i] = loadTile(filename);
sprintf(filename, "gfx/decals/scorch%d.png", (i + 1));
decals[i + 4] = loadTile(filename);
}
}