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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 <cstdio>
#include <string>
TCODNoise noise1d(1);
TCODNoise noise2d(2);
Weather weather;
float dayTime = 6 * 3600.0f; // starts at 6.00am
TCODColor lightningColor(220, 220, 255);
TCODImage* ground;
void update(float elapsed, TCOD_key_t k, TCOD_mouse_t) {
if (k.c == '+') {
float d = weather.getIndicatorDelta();
weather.setIndicatorDelta(d + elapsed * 0.1f);
} else if (k.c == '-') {
float d = weather.getIndicatorDelta();
weather.setIndicatorDelta(d - elapsed * 0.1f);
} else if (k.vk == TCODK_ENTER || k.vk == TCODK_KPENTER) {
elapsed *= 20.0f;
}
dayTime += elapsed * 60 * 3; // 1 real sec = 3 min
if (dayTime >= 24 * 3600) dayTime -= 24 * 3600;
weather.update(elapsed);
weather.calculateAmbient(dayTime);
}
std::string getDaytime() {
char buf[6] = "";
int hour = (int)(dayTime / 3600);
int minute = (int)((dayTime - hour * 3600) / 60);
snprintf(buf, sizeof(buf), "%02d:%02d", hour, minute);
return buf;
}
void render() {
static TCODImage img(CON_W * 2, CON_H * 2);
for (int x = 0; x < CON_W * 2; x++) {
for (int y = 0; y < CON_H * 2; y++) {
// we don't use color operation to avoid 0-255 clamping at every step
// sort of poor man's HDR...
int r = 0, g = 0, b = 0;
// default ground color
TCODColor groundCol = ground->getPixel(x, y);
// take cloud shadow into account
float cloudCoef = weather.getCloud(x, y);
r += (int)(cloudCoef * weather.getAmbientLightColor().r);
g += (int)(cloudCoef * weather.getAmbientLightColor().g);
b += (int)(cloudCoef * weather.getAmbientLightColor().b);
// take lightning into account
int lr = 0, lg = 0, lb = 0;
float lightning = weather.getLightning(x, y);
if (lightning > 0.0f) {
lr = (int)(2 * lightning * lightningColor.r);
lg = (int)(2 * lightning * lightningColor.g);
lb = (int)(2 * lightning * lightningColor.b);
r += lr;
g += lg;
b += lb;
}
r = MIN(255, r);
g = MIN(255, g);
b = MIN(255, b);
r = groundCol.r * r / 200;
g = groundCol.g * g / 200;
b = groundCol.b * b / 200;
img.putPixel(x, y, TCODColor(r, g, b));
}
}
img.blit2x(TCODConsole::root, 0, 0);
// rain drops
for (int x = 0; x < CON_W; x++) {
for (int y = 0; y < CON_H; y++) {
if (weather.hasRainDrop()) {
float lightning = weather.getLightning(x * 2, y * 2);
float cloudCoef = weather.getCloud(x * 2, y * 2);
TCODColor col = TCODColor{0, 0, 191} * cloudCoef;
col = col * weather.getAmbientLightColor();
if (lightning > 0.0f) col = col + 2 * lightning * lightningColor;
TCODConsole::root->setChar(x, y, '/');
TCODConsole::root->setCharForeground(x, y, col);
}
}
}
TCODConsole::root->setDefaultForeground({255, 255, 255});
TCODConsole::root->printf(
5,
CON_H - 12,
"TCOD's weather system :\n"
"- wind with varying speed and direction\n"
"- rain\n"
"- lightnings\n"
"- day/night cycle\n"
"Day time : %s\n"
"Weather : %s\n\n"
"Weather evolves automatically\nbut you can alter it by holding + or - : %.1f\n"
"Accelerate time with ENTER",
getDaytime().c_str(),
weather.getWeather(),
weather.getIndicatorDelta());
}
int main(int argc, char* argv[]) {
// initialize the game window
TCODConsole::initRoot(CON_W, CON_H, "Weather system", false, TCOD_RENDERER_OPENGL2);
TCODMouse::showCursor(true);
TCODSystem::setFps(25);
weather.init(CON_W * 2, CON_H * 2);
ground = new TCODImage(CON_W * 2, CON_H * 2);
// generate some good locking ground
TCODColor colors[] = {
TCODColor(40, 117, 0), // grass
TCODColor(69, 125, 0), // sparse grass
TCODColor(110, 125, 0), // withered grass
TCODColor(150, 143, 92), // dried grass
TCODColor(133, 115, 71), // bare ground
TCODColor(111, 100, 73) // dirt
};
int keys[] = {0, 51, 102, 153, 204, 255};
TCODColor gradientMap[256];
TCODColor::genMap(gradientMap, 6, colors, keys);
for (int x = 0; x < CON_W * 2; x++) {
for (int y = 0; y < CON_H * 2; y++) {
float f[2] = {x * 3.0f / CON_W, y * 3.0f / CON_H};
float h = noise2d.getFbm(f, 6.0f, TCOD_NOISE_SIMPLEX);
int ih = (int)(h * 256);
ih = CLAMP(0, 255, ih);
float coef = 1.0f;
// darken the lower part (text background)
if (y > CON_H * 2 - 27) coef = 0.5f;
TCODColor col = coef * gradientMap[ih];
// add some noise
col = col * TCODRandom::getInstance()->getFloat(0.95f, 1.05f);
ground->putPixel(x, y, col);
}
}
// for this demo, we want the weather to evolve quite rapidely
weather.setChangeFactor(3.0f);
bool endCredits = false;
while (!TCODConsole::isWindowClosed()) {
// read keyboard
TCOD_key_t k = TCODConsole::checkForKeypress(TCOD_KEY_PRESSED | TCOD_KEY_RELEASED);
TCOD_mouse_t mouse = TCODMouse::getStatus();
if (k.vk == TCODK_PRINTSCREEN) {
// screenshot
if (!k.pressed) TCODSystem::saveScreenshot(NULL);
k.vk = TCODK_NONE;
} else if (k.lalt && (k.vk == TCODK_ENTER || k.vk == TCODK_KPENTER)) {
// switch fullscreen
if (!k.pressed) TCODConsole::setFullscreen(!TCODConsole::isFullscreen());
k.vk = TCODK_NONE;
}
// update the game
update(TCODSystem::getLastFrameLength(), k, mouse);
// render the game screen
render();
// render libtcod credits
if (!endCredits) endCredits = TCODConsole::renderCredits(4, 4, true);
// flush updates to screen
TCODConsole::root->flush();
}
return 0;
}
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