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more code golfing - now 2026 zip
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eliminated 2 letter variables
fix road width bug
move object collision check
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@KilledByAPixel
KilledByAPixel authored Feb 21, 2020
1 parent ebb62f2 commit 8cdfc12
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2 changes: 1 addition & 1 deletion a.htm
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34 changes: 18 additions & 16 deletions index.html
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Original file line number Diff line number Diff line change
Expand Up @@ -171,6 +171,7 @@
road[i].z = i*roadSegmentLength; // Z pos
road[i].w = i > roadEnd ? 0 : Lerp(p, road[i].w, roadGenWidth); // check for road end, width and taper
road[i].a = road[i-1]? Math.atan2(road[i-1].y-road[i].y, roadSegmentLength) : 0; // pitch angle
road[i].o = Random()>.2? 0 : 2*roadWidth * Random(10,-10) * Random(9); // object (tree or rock)

if (roadGenSectionDistance++ > roadGenSectionDistanceMax) // check for end of section
{
Expand Down Expand Up @@ -363,17 +364,6 @@
p1 = segment1.p; // projected point
p2 = segment2.p; // last projected point

// player object collision check
z = (Random(2)|0) * 400; // object type & height
o = Random()>.2? 0 : 2*roadWidth * Random(10,-10) * Random(9); // object position, 0 is no object
if (o && !segment1.h // object exists and was not hit
&& Math.abs(playerPos.x - o) < 200 // player collison x
&& Math.abs(playerPos.z + roadSegmentLength - segment1.z) < 200 // player collison z (check ahead)
&& playerPos.y-playerHeight < segment1.y+150+z) // player y collision
{
playerVelocity = playerVelocity.Multiply(segment1.h = playerCollisionSlow); // stop player and mark object as hit
}

if (p1.z < 1e5 && p1.z > 0) // check near and far clip
{
if (i % (Lerp(i/drawDistance,1,9)|0) == 0) // fade in road resolution
Expand Down Expand Up @@ -404,13 +394,24 @@
segment2 = segment1; // prep for next segment
}

// draw road object
if (o) // check for road object
// draw and update road object
if (segment1.o) // check for road object
{
// player object collision check
z = (Random(2)|0) * 400; // object type & height
if (!segment1.h
&& Math.abs(playerPos.x - segment1.o) < 200 // player collison x
&& Math.abs(playerPos.z + roadSegmentLength - segment1.z) < 200 // player collison z (check ahead)
&& playerPos.y-playerHeight < segment1.y+150+z) // player y collision
{
playerVelocity = playerVelocity.Multiply(segment1.h = playerCollisionSlow); // stop player and mark hit
}

// draw road object
a = Lerp(i/drawDistance, 4, 0); // fade in object alpha
if (z) // tree
{
DrawPoly(x = p1.x+p1.z * o, p1.y, p1.z*29, // trunk bottom
DrawPoly(x = p1.x+p1.z * segment1.o, p1.y, p1.z*29, // trunk bottom
x, p1.y-99*p1.z, p1.z*29, // trunk top
LSHA(5+Random(9), 50+Random(9), 29+Random(9), a)); // trunk color
DrawPoly(x, p1.y-Random(50,99)*p1.z, p1.z*Random(199,250), // leaves bottom
Expand All @@ -419,7 +420,7 @@
}
else // rock
{
DrawPoly(x = p1.x+p1.z * o, p1.y, p1.z*Random(200,250), // rock bottom
DrawPoly(x = p1.x+p1.z * segment1.o, p1.y, p1.z*Random(200,250), // rock bottom
x+p1.z*(Random(99,-99)), p1.y-Random(200,250)*p1.z, p1.z*Random(99), // rock top
LSHA(55+Random(9), 30+Random(9), 209+Random(9), a)); // rock color
}
Expand Down Expand Up @@ -483,7 +484,8 @@
context.lineTo(x1-w1|0, y1|0);
context.lineTo(x1+w1|0, y1|0);
context.lineTo(x2+w2|0, y2|0);
context.fill(context.lineTo(x2-w2|0, y2|0));
context.lineTo(x2-w2|0, y2|0);
context.fill();
}

/////////////////////////////////////////////////////////////////////////////////////
Expand Down

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