things are casting now and sfml is rendering the way I want it to.

The voxel stepping is still all messed up, and it seems that there is
some data corruption on the map that I'll need to dig into
master
MitchellHansen 8 years ago
parent 1553b5da2c
commit 0b8cd9a194

@ -6,6 +6,15 @@ class Map {
public: public:
Map(sf::Vector3i dim) { Map(sf::Vector3i dim) {
list = new char[dim.x * dim.y * dim.z]; list = new char[dim.x * dim.y * dim.z];
for (int i = 0; i < dim.x * dim.y * dim.x; i++) {
list[i] = 0;
}
for (int x = 0; x < dim.x; x++) {
for (int y = 0; y < dim.y; y++) {
list[x + dim.x * (y + dim.z * 1)] = 1;
}
}
dimensions = dim; dimensions = dim;
} }

@ -12,7 +12,7 @@ public:
sf::Color* CastRays(sf::Vector3<float> camera_direction, sf::Vector3<float> camera_position); sf::Color* CastRays(sf::Vector3<float> camera_direction, sf::Vector3<float> camera_position);
void moveCamera(sf::Vector2f v);
private: private:
sf::Vector3<int> map_dimensions; sf::Vector3<int> map_dimensions;

@ -47,10 +47,10 @@ sf::Color Ray::Cast(){
// Setup the voxel step based on what direction the ray is pointing // Setup the voxel step based on what direction the ray is pointing
sf::Vector3<int> voxel_step(1, 1, 1); sf::Vector3<int> voxel_step(1, 1, 1);
if (direction.x <= 0.0f || direction.x >= 3.14f) { //if (direction.x <= 0.0f || direction.x >= 3.14f) {
voxel_step.x *= -1; // voxel_step.x *= -1;
} //}
if (direction.y <= 0.0f || direction.y >= 3.14f) { if (direction.y > 0.0f || direction.y < PI/2) {
voxel_step.y *= -1; voxel_step.y *= -1;
} }
if (direction.z <= 0.0f || direction.z >= 3.14f) { if (direction.z <= 0.0f || direction.z >= 3.14f) {
@ -77,17 +77,16 @@ sf::Color Ray::Cast(){
intersection_t.z = intersection_t.z + delta_t.z; intersection_t.z = intersection_t.z + delta_t.z;
} }
} }
// If the voxel went out of bounds // If the voxel went out of bounds
if (voxel.x > 49 || voxel.y > 49){ if (voxel.z > dimensions.z || voxel.x > dimensions.x || voxel.y > dimensions.x){
return sf::Color::Blue;; return sf::Color::Blue;;
} }
else if (voxel.z > 49 || voxel.x < 0 || voxel.y < 0 || voxel.z < 0){ else if ( voxel.x < 0 || voxel.y < 0 || voxel.z < 0){
return sf::Color::Green; return sf::Color::Green;
} }
// If we found a voxel // If we found a voxel
// Registers hit on non-zero // Registers hit on non-zero
else if (map->list[voxel.x, voxel.y, voxel.z] != 0){ else if (map->list[voxel.x + dimensions.x * (voxel.y + dimensions.z * voxel.z)] != 0){
//TODO: Switch that assigns color on voxel data //TODO: Switch that assigns color on voxel data
return sf::Color::Red; return sf::Color::Red;

@ -19,7 +19,7 @@ RayCaster::RayCaster(
this->map = map; this->map = map;
resolution = viewport_resolution; resolution = viewport_resolution;
image = new sf::Color[resolution.x, resolution.y]; image = new sf::Color[resolution.x * resolution.y];
@ -46,10 +46,11 @@ sf::Color* RayCaster::CastRays(sf::Vector3<float> camera_direction, sf::Vector3<
// A reference to the positive X axis as our base viewport point // A reference to the positive X axis as our base viewport point
sf::Vector3f base_direction(1, 0, 0); sf::Vector3f base_direction(1, 0, 0);
//-resolution.y / 2
// Start the loop at the bottom left, scan right and work up // Start the loop at the bottom left, scan right and work up
for (int x = 0; x < resolution.x / 2; x++) { for (int x = 0; x < resolution.x; x++) {
for (int y = -resolution.y / 2; y < resolution.y / 2; y++) { for (int y = 0; y < resolution.y; y++) {
// The direction the final ray will point. // The direction the final ray will point.
// First take a reference to the base direction to setup the viewport // First take a reference to the base direction to setup the viewport
@ -60,7 +61,7 @@ sf::Color* RayCaster::CastRays(sf::Vector3<float> camera_direction, sf::Vector3<
sf::Vector3f ray_direction( sf::Vector3f ray_direction(
camera_direction.x + 1.0f, camera_direction.x,
camera_direction.y + (float)(y_increment_radians * y), camera_direction.y + (float)(y_increment_radians * y),
camera_direction.z + (float)(x_increment_radians * x) camera_direction.z + (float)(x_increment_radians * x)
); );
@ -78,8 +79,18 @@ sf::Color* RayCaster::CastRays(sf::Vector3<float> camera_direction, sf::Vector3<
Ray r(map, resolution, sf::Vector2i(x, y), camera_position, ray_direction); Ray r(map, resolution, sf::Vector2i(x, y), camera_position, ray_direction);
// Cast it // Cast it
///image[x + 100, y + 100] = r.Cast(); sf::Color c = r.Cast();
if (c.a == 0)
std::cout << "BLACK";
image[x + resolution.x*y] = c;
} }
} }
return image; return image;
} }
void RayCaster::moveCamera(sf::Vector2f v) {
camera_direction.y += v.x;
camera_direction.z += v.y;
}

@ -3,7 +3,8 @@
#include <string> #include <string>
#include <chrono> #include <chrono>
#include "util.hpp" #include "util.hpp"
#include "../build/RayCaster.h" #include "RayCaster.h"
#include <Map.h>
const int WINDOW_X = 600; const int WINDOW_X = 600;
const int WINDOW_Y = 800; const int WINDOW_Y = 800;
@ -52,7 +53,7 @@ int main() {
// State values // State values
sf::Vector3i map_dim(100, 100, 100); sf::Vector3i map_dim(100, 100, 100);
sf::Vector2i view_res(200, 200); sf::Vector2i view_res(WINDOW_X, WINDOW_Y);
sf::Vector3f cam_dir(1.0f, 0.0f, 1.57f); sf::Vector3f cam_dir(1.0f, 0.0f, 1.57f);
sf::Vector3f cam_pos(10, 10, 10); sf::Vector3f cam_pos(10, 10, 10);
@ -72,6 +73,23 @@ int main() {
// If the user tries to exit the application via the GUI // If the user tries to exit the application via the GUI
if (event.type == sf::Event::Closed) if (event.type == sf::Event::Closed)
window.close(); window.close();
if (sf::Keyboard::isKeyPressed(sf::Keyboard::Left)) {
cam_dir.z -= 0.1f;
std::cout << "X:" << cam_dir.x << " Y:" << cam_dir.y << " Z:" << cam_dir.z << std::endl;
}
if (sf::Keyboard::isKeyPressed(sf::Keyboard::Right)) {
cam_dir.z += 0.1f;
std::cout << "X:" << cam_dir.x << " Y:" << cam_dir.y << " Z:" << cam_dir.z << std::endl;
}
if (sf::Keyboard::isKeyPressed(sf::Keyboard::Down)) {
cam_dir.y += 0.1f;
std::cout << "X:" << cam_dir.x << " Y:" << cam_dir.y << " Z:" << cam_dir.z << std::endl;
}
if (sf::Keyboard::isKeyPressed(sf::Keyboard::Up)) {
cam_dir.y -= 0.1f;
std::cout << "X:" << cam_dir.x << " Y:" << cam_dir.y << " Z:" << cam_dir.z << std::endl;
}
} }
// Get the elapsed time from the start of the application // Get the elapsed time from the start of the application

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