AnotherFoxGuy/bounce
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

fix grid generation code

Browse Source
This commit is contained in:
Irlan 2018-04-03 23:31:59 -03:00
parent 3c84b8f8f4
commit 2b764021ff
1 changed files with 24 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

37
examples/testbed/framework/test.cpp
View File

@ -29,26 +29,37 @@ extern DebugDraw* g_debugDraw;
extern Camera g_camera; extern Camera g_camera;
extern Profiler* g_profiler; extern Profiler* g_profiler;
static void BuildGrid(b3Mesh* mesh, u32 w, u32 h, bool randomY = false) void BuildGrid(b3Mesh* mesh, u32 w, u32 h, bool randomY = false)
{ {
b3Vec3 t; if (w == 0 && h == 0)
t.x = -0.5f * float32(w); {
t.y = 0.0f; mesh->vertexCount = 0;
t.z = -0.5f * float32(h); mesh->triangleCount = 0;
return;
}
mesh->vertexCount = w * h; // Square to vertex count
w += 1;
h += 1;
b3Vec3 t;
t.x = -0.5f * float32(w) + 0.5f;
t.y = 0.0f;
t.z = -0.5f * float32(h) + 0.5f;
mesh->vertexCount = h * w;
mesh->vertices = (b3Vec3*)b3Alloc(mesh->vertexCount * sizeof(b3Vec3)); mesh->vertices = (b3Vec3*)b3Alloc(mesh->vertexCount * sizeof(b3Vec3));
for (u32 i = 0; i < w; ++i) for (u32 i = 0; i < h; ++i)
{ {
for (u32 j = 0; j < h; ++j) for (u32 j = 0; j < w; ++j)
{ {
u32 v1 = i * w + j; u32 v1 = i * w + j;
b3Vec3 v; b3Vec3 v;
v.x = float32(i); v.x = float32(j);
v.y = randomY ? RandomFloat(0.0f, 1.0f) : 0.0f; v.y = randomY ? RandomFloat(0.0f, 1.0f) : 0.0f;
v.z = float32(j); v.z = float32(i);
v += t; v += t;
@ -56,13 +67,13 @@ static void BuildGrid(b3Mesh* mesh, u32 w, u32 h, bool randomY = false)
} }
} }
mesh->triangleCount = 2 * (w - 1) * (h - 1); mesh->triangleCount = 2 * (h - 1) * (w - 1);
mesh->triangles = (b3Triangle*)b3Alloc(mesh->triangleCount * sizeof(b3Triangle)); mesh->triangles = (b3Triangle*)b3Alloc(mesh->triangleCount * sizeof(b3Triangle));
u32 triangleCount = 0; u32 triangleCount = 0;
for (u32 i = 0; i < w - 1; ++i) for (u32 i = 0; i < h - 1; ++i)
{ {
for (u32 j = 0; j < h - 1; ++j) for (u32 j = 0; j < w - 1; ++j)
{ {
u32 v1 = i * w + j; u32 v1 = i * w + j;
u32 v2 = (i + 1) * w + j; u32 v2 = (i + 1) * w + j;