games/roguish
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Tried to set the background color in the ftxui canvas and weirdly it started doing almost what I want with lighting, but I didn't write any code to do that. There's some bug in how I'm doing it that's causing it to set the colors...correctly. Must find out why.

Browse source
This commit is contained in:
Zed A. Shaw 2024-11-23 23:11:20 -05:00
parent fb1fd9d8bc
commit 1bb04b4562
5 changed files with 55 additions and 13 deletions
Download patch file Download diff file Expand all files Collapse all files

31
systems.cpp
View file

@ -9,6 +9,8 @@
#include "ftxui/screen/terminal.hpp" // for SetColorSupport, Color, TrueColor
#include "dbc.hpp"
const bool DEBUG_MAP=false;
using std::string;
using namespace fmt;
using namespace components;
@ -132,6 +134,8 @@ void System::draw_entities(DinkyECS::World &world, Map &game_map, ftxui::Canvas
&& pos.location.y >= cam_orig.y && pos.location.y <= cam_orig.y + view_y) {
Point loc = game_map.map_to_camera(pos.location, cam_orig);
// the 2 and 4 are from ftxui::Canvas since it does a kind of "subpixel" drawing
// BUG: this color is a made up BS color for seeing entities until I can work on them
canvas.DrawText(loc.x*2, loc.y*4, tile.chr, Color::RGB(255, 50, 50));
}
});
@ -142,7 +146,8 @@ void System::draw_map(DinkyECS::World &world, Map &game_map, ftxui::Canvas &canv
const auto& player = world.get_the<Player>();
const auto& player_position = world.get<Position>(player.entity);
Point start = game_map.center_camera(player_position.location, view_x, view_y);
Matrix &walls = game_map.walls();
auto &walls = game_map.walls();
auto &paths = game_map.paths();
size_t end_x = std::min(view_x, game_map.width() - start.x);
size_t end_y = std::min(view_y, game_map.height() - start.y);
@ -151,10 +156,30 @@ void System::draw_map(DinkyECS::World &world, Map &game_map, ftxui::Canvas &canv
for(size_t y = 0; y < end_y; ++y) {
string tile = walls[start.y+y][start.x+x] == 1 ? config.WALL_TILE : config.FLOOR_TILE;
// the 2 and 4 are from ftxui::Canvas since it does a kind of "subpixel" drawing
// LIGHT: if tile is in light then color ++ otherwise --
// LIGHT: is put into the/a collision map and if a cell is a light's neighbor
// it gets brighter.
const int LIGHT_MIN = 30;
const int LIGHT_MAX = 180;
Point light_at{start.x+x, start.y+y};
int dnum = paths[light_at.y][light_at.x];
int light_value = std::clamp(255 - (dnum * 75), LIGHT_MIN, LIGHT_MAX);
if(tile == config.WALL_TILE) {
canvas.DrawText(x * 2, y * 4, tile, Color::RGB(70, 70, 70));
canvas.DrawText(x * 2, y * 4, tile, Color::HSV(230, 20, 20));
} else if(DEBUG_MAP) {
string num = format("{:x}", dnum);
num = num.size() > 2 ? "*" : num;
canvas.DrawText(x * 2, y * 4, num, Color::HSV(dnum * 20, 150, light_value));
} else {
canvas.DrawText(x * 2, y * 4, tile, Color::RGB(20, 20, 20));
// floor tile or similar
// BUG: no idea why this works but this actually implements decent light
canvas.DrawText(x * 2, y * 4, tile, [&, light_value](auto &pixel) {
pixel.foreground_color = Color::HSV(30, light_value / 2, light_value);
pixel.background_color = Color::HSV(30, 20, light_value);
});
}
}
}