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/*
* Copyright (c) 2010 Jice
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * The name of Jice may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY JICE ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL JICE BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "main.hpp"
#include <SDL.h>
#include <algorithm>
#include <array>
#include <libtcod/timer.hpp>
static constexpr auto WIDTH = 80;
static constexpr auto HEIGHT = 50;
static constexpr auto WHITE = TCOD_ColorRGB{255, 255, 255};
TCODNoise noise1d(1);
TCODNoise noise2d(2);
WorldGenerator worldGen;
// world map panning
float cur_w_x = 0, cur_w_y = 0;
// mouse coordinates in world map
float mx = 0, my = 0;
std::array<float, 2> mouse_subtile_xy{}; // Tracked mouse tile position.
void update(float elapsed) {
// destination wanted
const float world_x = (worldGen.getWidth() - 2 * WIDTH) * mouse_subtile_xy.at(0) / WIDTH;
const float world_y = (worldGen.getHeight() - 2 * HEIGHT) * mouse_subtile_xy.at(1) / HEIGHT;
cur_w_x += (world_x - cur_w_x) * elapsed;
cur_w_y += (world_y - cur_w_y) * elapsed;
mx = cur_w_x + mouse_subtile_xy.at(0) * 2;
my = cur_w_y + mouse_subtile_xy.at(1) * 2;
worldGen.updateClouds(elapsed);
}
TCODColor getMapShadedColor(float worldX, float worldY, bool clouds) {
// sun color
static constexpr TCODColor sunCol(255, 255, 200);
const float wx = CLAMP(0.0f, worldGen.getWidth() - 1, worldX);
const float wy = CLAMP(0.0f, worldGen.getHeight() - 1, worldY);
// apply cloud shadow
const float cloudAmount = clouds ? worldGen.getCloudThickness(wx, wy) : 0.0f;
TCODColor col = worldGen.getInterpolatedColor(worldX, worldY);
// apply sun light
float intensity = worldGen.getInterpolatedIntensity(wx, wy);
intensity = std::min(intensity, 1.5f - cloudAmount);
const int cr = (int)(intensity * (int)(col.r) * sunCol.r / 255);
const int cg = (int)(intensity * (int)(col.g) * sunCol.g / 255);
const int cb = (int)(intensity * (int)(col.b) * sunCol.b / 255);
return {
std::max<uint8_t>(static_cast<uint8_t>(CLAMP(0, 255, cr)), col.r / 2),
std::max<uint8_t>(static_cast<uint8_t>(CLAMP(0, 255, cg)), col.g / 2),
std::max<uint8_t>(static_cast<uint8_t>(CLAMP(0, 255, cb)), col.b / 2),
};
}
void render(TCOD_Console& console) {
// subcell resolution image
static TCODImage map(WIDTH * 2, HEIGHT * 2);
// compute the map image
for (int py = 0; py < 2 * HEIGHT; ++py) {
for (int px = 0; px < 2 * WIDTH; ++px) {
// world texel coordinate (with fisheye distortion)
const float wx = px + cur_w_x;
const float wy = py + cur_w_y;
map.putPixel(px, py, getMapShadedColor(wx, wy, true));
}
}
TCOD_image_blit_2x(map.get_data(), &console, 0, 0, 0, 0, -1, -1);
static const char* biomeNames[] = {
"Tundra",
"Cold desert",
"Grassland",
"Boreal forest",
"Temperate forest",
"Tropical/Montane forest",
"Hot desert",
"Savanna",
"Tropical dry forest",
"Tropical evergreen forest",
"Thorn forest"};
if (worldGen.isOnSea(mx, my)) {
// some information are irrelevant on sea
tcod::print(
console,
{5, 47},
tcod::stringf("Alt %5dm\n\nMove the mouse to scroll the map", (int)worldGen.getRealAltitude(mx, my)),
WHITE,
{});
} else {
tcod::print(
console,
{5, 47},
tcod::stringf(
"Alt %5dm Prec %3dcm/sq. m/y Temp %d deg C\nBiome : %s\nMove the mouse to scroll the map",
(int)worldGen.getRealAltitude(mx, my),
(int)worldGen.getPrecipitations(mx, my),
(int)worldGen.getTemperature(mx, my),
biomeNames[worldGen.getBiome(mx, my)]),
WHITE,
{});
}
}
int main(int argc, char* argv[]) {
auto tileset = tcod::load_tilesheet("data/fonts/terminal8x8_gs_tc.png", {32, 8}, tcod::CHARMAP_TCOD);
auto console = tcod::Console{WIDTH, HEIGHT};
// initialize the game window
TCOD_ContextParams params{};
params.tcod_version = TCOD_COMPILEDVERSION;
params.argc = argc;
params.argv = argv;
params.console = console.get();
params.vsync = true;
params.sdl_window_flags = SDL_WINDOW_RESIZABLE;
params.window_title = "World generator";
params.tileset = tileset.get();
auto context = tcod::Context(params);
int desired_fps = 0;
bool endCredits = false;
// generate the world with all data (rain, temperature and so on...)
worldGen.generate(NULL);
// compute light intensity on ground (depends on light direction and ground slope)
static const float lightDir[3] = {1.0f, 1.0f, 0.0f};
worldGen.computeSunLight(lightDir);
auto timer = tcod::Timer();
while (true) {
SDL_Event event;
while (SDL_PollEvent(&event)) {
switch (event.type) {
case SDL_QUIT:
std::exit(EXIT_SUCCESS);
break;
case SDL_MOUSEMOTION: {
const auto mouse_xy_d = context.pixel_to_tile_coordinates(
std::array<double, 2>{static_cast<double>(event.motion.x), static_cast<double>(event.motion.y)});
mouse_subtile_xy = {static_cast<float>(mouse_xy_d.at(0)), static_cast<float>(mouse_xy_d.at(1))};
} break;
default:
break;
}
}
// update the game
const float delta_time = timer.sync(desired_fps);
update(delta_time);
// render the game screen
render(console);
// render libtcod credits
if (!endCredits) endCredits = TCOD_console_credits_render_ex(console.get(), 4, 4, true, delta_time);
// flush updates to screen
context.present(console);
}
return 0;
}
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