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Allow changing color of wall based on map value

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Signed-off-by: Hans Kokx <hans.d.kokx@gmail.com>
This commit is contained in:
Hans Kokx
2026-08-30 13:53:06 +02:00
parent 0e1b9495c5
commit c9d02b3818
1 changed files with 19 additions and 3 deletions
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raycaster.c
+19 -3
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@@ -45,7 +45,7 @@ int map[] =
1,0,1,0,0,0,0,1,
1,0,1,0,0,0,0,1,
1,0,0,0,0,0,0,1,
1,0,0,0,0,1,0,1,
1,0,0,0,0,2,0,1,
1,0,0,0,0,0,0,1,
1,1,1,1,1,1,1,1,
};
@@ -178,6 +178,8 @@ void drawRays3D()
ry = py;
}
int mv = 0, mh = 0;
// ? We don't want to get caught in an infinite loop, so use the
// depth-of-field to limit our check to a max of 8.
while (dof < 8)
@@ -193,10 +195,12 @@ void drawRays3D()
// If the map position is less than the array's size, then we can check it
// inside the map. If the value is 1, there's a wall. If we hit a wall,
// we're done!
if (mp > 0 && mp < mapX * mapY && map[mp] == 1)
if (mp > 0 && mp < mapX * mapY && map[mp] > 0)
{
// We hit a wall!
mh = map[mp];
// Save the values and calculate the distance from the player
hx = rx;
hy = ry;
@@ -259,10 +263,12 @@ void drawRays3D()
// If the map position is less than the array's size, then we can check it
// inside the map. If the value is 1, there's a wall. If we hit a wall,
// we're done!
if (mp > 0 && mp < mapX * mapY && map[mp] == 1)
if (mp > 0 && mp < mapX * mapY && map[mp] > 0)
{
// We hit a wall!
mv = map[mp];
// Save the values and calculate the distance from the player
vx = rx;
vy = ry;
@@ -291,6 +297,11 @@ void drawRays3D()
disT = disV;
// Vertical walls are drawn a little brighter than horizontal walls
glColor3f(0.9, 0, 0);
if (mv == 2)
{
glColor3f(0, 0, 0.7);
}
}
// Horizontal wall hit
@@ -301,6 +312,11 @@ void drawRays3D()
disT = disH;
// Horizontal walls are drawn a little darker than vertical walls
glColor3f(0.7, 0, 0);
if (mh == 2)
{
glColor3f(0, 0, 0.4);
}
}
// * Draw the ray