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#include <string.h>
#include "FileIO.h"
#include "Constants.h"
typedef struct
{
double r; // 0 - 1
double g; // 0 - 1
double b; // 0 - 1
} color;
typedef struct
{
//General settings
double** map;
double** newMap;
char* contents;
int width;
int height;
int numFrames;
int frameNumber;
int mode;
//BINARY settings
double expandCoast;
double retractCoast;
double island;
double lake;
int expandCoastDecay;
//GRADIENT settings
double base; //Base positive random number probability; default: 0.5
double factor; //Positive random number factor; default: 0.4
double change; //Change multiplier; default: 0.1
//EMPIRES settings
color* empireColors;
int numEmpires;
int showMapGen;
} map_state;
void overlay(double** dest, double** src, int src_x, int src_y, int src_width, int src_height)
{
int x, y;
for (y = src_y; y < src_y + src_height; y++)
for (x = src_x; x < src_x + src_width; x++)
dest[y][x] = src[y-src_y][x-src_x];
}
double** getLetter(char letter)
{
char* filePath;
if (letter == ' ')
{
filePath = "images/space.ppm";
}
else
{
filePath = malloc(16);
sprintf(filePath, "images/%c.ppm", letter);
}
char* data = readFile(filePath);
double** img = malloc(LETTER_HEIGHT * sizeof(double*));
int i;
for (i = 0; i < LETTER_HEIGHT; i++)
img[i] = malloc(LETTER_WIDTH * sizeof(double));
for (i = 0; i < LETTER_HEIGHT * LETTER_WIDTH; i++)
img[i / LETTER_HEIGHT][i % LETTER_HEIGHT] = (double)((unsigned char) data[i * 3 + PPM_START] / 255 + BLACK);
return img;
}
void writeChar(double** dest, char letter, int x, int y)
{
double** l = getLetter(letter);
overlay(dest, l, x, y, LETTER_WIDTH, LETTER_HEIGHT);
}
void writeString(double** dest, char* s, int x, int y)
{
int i;
for (i = 0; i < strlen(s); i++)
{
writeChar(dest, s[i], x+LETTER_WIDTH*i, y);
}
}
// Convert a map to a .ppm file
char* writePPM(map_state* ms, char* start, int binaryModeOverride)
{
if (ms->mode < 2 && !binaryModeOverride)
{
int x, y;
char r, g, b;
int string_pos = strlen(start);
double** map = ms->map;
memcpy(ms->contents, start, strlen(start));
for (y = 0; y < ms->height; y++)
{
for (x = 0; x < ms->width; x++)
{
if (map[y][x] == -2)
{
ms->contents[string_pos++] = 1;
ms->contents[string_pos++] = 1;
ms->contents[string_pos++] = 1;
}
else if (map[y][x] == -1)
{
ms->contents[string_pos++] = 255;
ms->contents[string_pos++] = 255;
ms->contents[string_pos++] = 255;
}
else
{
r = (char)(LANDR * map[y][x] + WATERR * (1-map[y][x]));
g = (char)((ms->mode == GRADIENT ? 255 : LANDG) * map[y][x] + WATERG * (1-map[y][x])); // For gradient mode, LANDG should be 255
b = (char)(LANDB * map[y][x] + WATERB * (1-map[y][x]));
ms->contents[string_pos++] = r == 0 ? 1: r;
ms->contents[string_pos++] = g == 0 ? 1 : g;
ms->contents[string_pos++] = b == 0 ? 1 : b;
}
}
}
ms->contents[string_pos] = 0;
return ms->contents;
}
else
{
int x, y;
color col;
char r, g, b;
int string_pos = strlen(start);
memcpy(ms->contents, start, strlen(start));
for (y = 0; y < ms->height; y++)
{
for (x = 0; x < ms->width; x++)
{
col = ms->empireColors[(int)ms->newMap[y][x]];
r = (char)(col.r * 255);
g = (char)(col.g * 255);
b = (char)(col.b * 255);
ms->contents[string_pos++] = r == 0 ? 1 : r;
ms->contents[string_pos++] = g == 0 ? 1 : g;
ms->contents[string_pos++] = b == 0 ? 1 : b;
}
}
ms->contents[string_pos] = 0;
return ms->contents;
}
}
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