mitchellhansen/voxel-raycaster
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So it's rendering pretty much perfectly in the XYZ+ range but things break

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down when I start hitting negative values. I have a feeling this is going
to be a lot of trial and error. Oh well
This commit is contained in:
MitchellHansen
2016-07-31 16:31:26 -07:00
parent 0b8cd9a194
commit f1c84c85b5
4 changed files with 140 additions and 38 deletions
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68
src/Ray.cpp
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@@ -15,6 +15,7 @@ Ray::Ray(
this->map = map;
origin = camera_position;
direction = ray_direction;
dimensions = map->getDimensions();
}
@@ -50,12 +51,21 @@ sf::Color Ray::Cast(){
//if (direction.x <= 0.0f || direction.x >= 3.14f) {
// voxel_step.x *= -1;
//}
if (direction.y > 0.0f || direction.y < PI/2) {
voxel_step.y *= -1;
// Up down
//if (direction.y < 0.0f) {
// voxel_step.z *= -1;
//}
if (direction.y > PI * 2 + PI / 2 || direction.y < -1 *PI * 2 + PI / 2) {
voxel_step.x *= -1;
}
if (direction.z <= 0.0f || direction.z >= 3.14f) {
voxel_step.z *= -1;
// Left right
if (direction.z > 1.57) {
//voxel_step.z *= -1;
}
//if (direction.z <= 3.14f + 1.57f && direction.z > 0.0f + 1.57f) {
// voxel_step.z *= -1;
//}
int dist = 0;
@@ -77,23 +87,51 @@ sf::Color Ray::Cast(){
intersection_t.z = intersection_t.z + delta_t.z;
}
}
// If the voxel went out of bounds
if (voxel.z > dimensions.z || voxel.x > dimensions.x || voxel.y > dimensions.x){
return sf::Color::Blue;;
if (voxel.z >= dimensions.z){
return sf::Color(0, 0, 255, 50);
}
else if ( voxel.x < 0 || voxel.y < 0 || voxel.z < 0){
return sf::Color::Green;
if (voxel.x >= dimensions.x){
return sf::Color(0, 0, 255, 100);
}
if (voxel.y >= dimensions.x){
return sf::Color(0, 0, 255, 150);
}
if (voxel.x < 0) {
return sf::Color(0, 255, 0, 150);
}
if (voxel.y < 0) {
return sf::Color(0, 255, 0, 100);
}
if (voxel.z < 0) {
return sf::Color(0, 255, 0, 50);
}
// If we found a voxel
// Registers hit on non-zero
else if (map->list[voxel.x + dimensions.x * (voxel.y + dimensions.z * voxel.z)] != 0){
//TODO: Switch that assigns color on voxel data
return sf::Color::Red;
}
else {
dist++;
switch (map->list[voxel.x + dimensions.x * (voxel.y + dimensions.z * voxel.z)]) {
case 1:
return sf::Color::Red;
case 2:
return sf::Color::Magenta;
case 3:
return sf::Color::Yellow;
case 4:
return sf::Color(40, 230, 96, 200);
case 5:
return sf::Color(80, 120, 96, 100);
case 6:
return sf::Color(150, 80, 220, 200);
}
//else if (map->list[voxel.x + dimensions.x * (voxel.y + dimensions.z * voxel.z)] != 0){
//
// //TODO: Switch that assigns color on voxel data
// return sf::Color::Red;
//}
dist++;
} while(dist < 200);