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More cleanup, mostly removing variables and simplifying the math.

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This commit is contained in:
Zed A. Shaw 2025-01-16 10:32:28 -05:00
parent 113df851af
commit 033d5cdfec
3 changed files with 41 additions and 51 deletions
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45
raycaster.cpp
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@ -41,6 +41,7 @@ void TexturePack::load_image(std::vector<uint32_t>& texture, const char *filenam
sf::Image img;
bool good = img.loadFromFile(filename);
dbc::check(good, format("failed to load {}", filename));
uint32_t *pixbuf = (uint32_t *)img.getPixelsPtr();
std::copy_n(pixbuf, texture.size(), texture.begin());
}
@ -63,10 +64,10 @@ Raycaster::Raycaster(sf::RenderWindow& window, Matrix &map) :
textures.load_textures();
}
void Raycaster::position_camera(float player_x, float player_y, int tile_size) {
void Raycaster::position_camera(float player_x, float player_y) {
// x and y start position
posX = player_x / tile_size;
posY = player_y / tile_size;
posX = player_x;
posY = player_y;
}
void Raycaster::draw_pixel_buffer() {
@ -370,32 +371,24 @@ void Raycaster::sort_sprites(int* order, double* dist, int amount)
}
}
void Raycaster::move_forward(double moveSpeed) {
if(empty_space(int(posX + dirX * moveSpeed), int(posY))) posX += dirX * moveSpeed;
if(empty_space(int(posX), int(posY + dirY * moveSpeed))) posY += dirY * moveSpeed;
void Raycaster::run(double speed, int dir) {
double speed_and_dir = speed * dir;
if(empty_space(int(posX + dirX * speed_and_dir), int(posY))) {
posX += dirX * speed_and_dir;
}
if(empty_space(int(posX), int(posY + dirY * speed_and_dir))) {
posY += dirY * speed_and_dir;
}
}
void Raycaster::move_backward(double moveSpeed) {
if(empty_space(int(posX - dirX * moveSpeed), int(posY))) posX -= dirX * moveSpeed;
if(empty_space(int(posX), int(posY - dirY * moveSpeed))) posY -= dirY * moveSpeed;
}
void Raycaster::rotate_right(double rotSpeed) {
void Raycaster::rotate(double speed, int dir) {
double speed_and_dir = speed * dir;
double oldDirX = dirX;
dirX = dirX * cos(-rotSpeed) - dirY * sin(-rotSpeed);
dirY = oldDirX * sin(-rotSpeed) + dirY * cos(-rotSpeed);
dirX = dirX * cos(speed_and_dir) - dirY * sin(speed_and_dir);
dirY = oldDirX * sin(speed_and_dir) + dirY * cos(speed_and_dir);
double oldPlaneX = planeX;
planeX = planeX * cos(-rotSpeed) - planeY * sin(-rotSpeed);
planeY = oldPlaneX * sin(-rotSpeed) + planeY * cos(-rotSpeed);
}
void Raycaster::rotate_left(double rotSpeed) {
double oldDirX = dirX;
dirX = dirX * cos(rotSpeed) - dirY * sin(rotSpeed);
dirY = oldDirX * sin(rotSpeed) + dirY * cos(rotSpeed);
double oldPlaneX = planeX;
planeX = planeX * cos(rotSpeed) - planeY * sin(rotSpeed);
planeY = oldPlaneX * sin(rotSpeed) + planeY * cos(rotSpeed);
planeX = planeX * cos(speed_and_dir) - planeY * sin(speed_and_dir);
planeY = oldPlaneX * sin(speed_and_dir) + planeY * cos(speed_and_dir);
}