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feat(tests): Update cube demo scene tests for new tessellated floor and ceiling geometry

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johndoe6345789
2026-01-07 14:50:27 +00:00
parent d4921be5ef
commit 78c47c4429
2 changed files with 105 additions and 14 deletions
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100
scripts/cube_logic.lua
View File

@@ -30,6 +30,53 @@ local function build_double_sided_indices(indices)
return doubled
end
-- Generate a tessellated plane for floor/ceiling with proper vertex count
local function generate_plane_mesh(width, depth, subdivisions, color)
local vertices = {}
local indices = {}
local step_x = width / subdivisions
local step_z = depth / subdivisions
local half_width = width * 0.5
local half_depth = depth * 0.5
-- Generate vertices (Lua is 1-indexed)
for z = 0, subdivisions do
for x = 0, subdivisions do
local px = -half_width + x * step_x
local pz = -half_depth + z * step_z
vertices[#vertices + 1] = {
position = {px, 0.0, pz},
normal = {0.0, 1.0, 0.0}, -- Up normal
color = color or {1.0, 1.0, 1.0},
texcoord = {x / subdivisions, z / subdivisions},
}
end
end
-- Generate indices (two triangles per quad, convert to 1-based for Lua)
for z = 0, subdivisions - 1 do
for x = 0, subdivisions - 1 do
-- Calculate 0-based indices first
local i0 = z * (subdivisions + 1) + x
local i1 = i0 + 1
local i2 = i0 + (subdivisions + 1)
local i3 = i2 + 1
-- Convert to 1-based indices for Lua
indices[#indices + 1] = i0 + 1
indices[#indices + 1] = i2 + 1
indices[#indices + 1] = i1 + 1
indices[#indices + 1] = i1 + 1
indices[#indices + 1] = i2 + 1
indices[#indices + 1] = i3 + 1
end
end
return vertices, indices
end
local function load_cube_mesh()
if type(load_mesh_from_file) ~= "function" then
cube_mesh_info.error = "load_mesh_from_file() is unavailable"
@@ -774,6 +821,7 @@ local function create_physics_cube()
end
local shader_key = resolve_material_shader()
local last_matrix = math3d.identity()
local base_rotation_offset = math.pi / 4 -- Start with 45 degree rotation so it's visible immediately
local function compute_model_matrix(time)
step_physics(time)
@@ -784,11 +832,18 @@ local function create_physics_cube()
end
return last_matrix
end
local matrix = math3d.from_transform(transform.position, transform.rotation)
matrix = math3d.multiply(matrix, scale_matrix(
-- Add rotation to physics cube so it spins while falling
local spin_angle = base_rotation_offset + (time * rotation_speed)
local spin_rotation = math3d.rotation_y(spin_angle)
local physics_matrix = math3d.from_transform(transform.position, transform.rotation)
local scale = scale_matrix(
physics_state.cube_scale[1],
physics_state.cube_scale[2],
physics_state.cube_scale[3]))
physics_state.cube_scale[3])
-- Combine: translation from physics, spin rotation, then scale
local matrix = math3d.multiply(physics_matrix, math3d.multiply(spin_rotation, scale))
last_matrix = matrix
return matrix
end
@@ -847,11 +902,42 @@ local function create_room_objects()
local wall_color = {1.0, 1.0, 1.0}
local ceiling_color = {1.0, 1.0, 1.0}
-- Generate proper floor and ceiling planes with tessellation (20x20 = 400 triangles, 441 vertices)
local floor_vertices, floor_indices = generate_plane_mesh(room.half_size * 2, room.half_size * 2, 20, floor_color)
local ceiling_vertices, ceiling_indices = generate_plane_mesh(room.half_size * 2, room.half_size * 2, 20, ceiling_color)
-- Flip ceiling normals to face down
for i = 1, #ceiling_vertices do
ceiling_vertices[i].normal = {0.0, -1.0, 0.0}
end
local function create_floor()
local function compute_model_matrix()
return build_static_model_matrix({0.0, floor_center_y, 0.0}, {1.0, 1.0, 1.0})
end
return {
vertices = floor_vertices,
indices = floor_indices,
compute_model_matrix = compute_model_matrix,
shader_keys = {"floor"},
}
end
local function create_ceiling()
local function compute_model_matrix()
return build_static_model_matrix({0.0, ceiling_y, 0.0}, {1.0, 1.0, 1.0})
end
return {
vertices = ceiling_vertices,
indices = ceiling_indices,
compute_model_matrix = compute_model_matrix,
shader_keys = {"ceiling"},
}
end
local objects = {
create_static_cube({0.0, floor_center_y, 0.0},
{room.half_size, room.floor_half_thickness, room.half_size}, floor_color, "floor"),
create_static_cube({0.0, ceiling_y, 0.0},
{room.half_size, room.floor_half_thickness, room.half_size}, ceiling_color, "ceiling"),
create_floor(),
create_ceiling(),
create_static_cube({0.0, wall_center_y, -wall_offset},
{room.half_size, room.wall_height, room.wall_thickness}, wall_color, "wall"),
create_static_cube({0.0, wall_center_y, wall_offset},

19
tests/test_cube_script.cpp
View File

@@ -607,7 +607,8 @@ void RunCubeDemoSceneTests(int& failures) {
} else if (shaderKey == "ceiling") {
ceilingIndices.push_back(index);
Assert(ApproximatelyEqual(summary.translation[1], ceilingY), "ceiling translation mismatch", failures);
Assert(ApproximatelyEqual(summary.scale[1], floorHalfThickness), "ceiling thickness mismatch", failures);
// Ceiling now uses tessellated plane with scale 1.0 (geometry is pre-sized)
Assert(ApproximatelyEqual(summary.scale[0], 1.0f, 0.1f), "ceiling scale mismatch", failures);
if (!object.vertices.empty()) {
ExpectColorNear(object.vertices.front(), white, "ceiling vertex color", failures);
}
@@ -681,10 +682,13 @@ void RunCubeDemoSceneTests(int& failures) {
size_t cubeObjectIndex = std::numeric_limits<size_t>::max();
for (size_t idx : floorIndices) {
auto summary = ExtractMatrixSummary(staticCommands[idx].modelMatrix);
if (ApproximatelyEqual(summary.scale[0], roomHalfSize)
&& ApproximatelyEqual(summary.scale[2], roomHalfSize)) {
// Floor now uses tessellated plane with scale 1.0 (size is in vertices)
// Cube uses physics with scale 1.5
if (objects[idx].vertices.size() > 100) {
// This is the floor (many vertices from tessellation)
floorObjectIndex = idx;
} else if (ApproximatelyEqual(summary.scale[0], 1.5f)) {
} else {
// This is the physics cube (using cube mesh)
cubeObjectIndex = idx;
}
}
@@ -694,7 +698,8 @@ void RunCubeDemoSceneTests(int& failures) {
if (floorObjectIndex != std::numeric_limits<size_t>::max()) {
auto summary = ExtractMatrixSummary(staticCommands[floorObjectIndex].modelMatrix);
Assert(ApproximatelyEqual(summary.translation[1], floorCenterY), "floor translation mismatch", failures);
Assert(ApproximatelyEqual(summary.scale[1], floorHalfThickness), "floor thickness mismatch", failures);
// Floor now has scale 1.0 (geometry is pre-sized)
Assert(ApproximatelyEqual(summary.scale[0], 1.0f, 0.1f), "floor scale mismatch", failures);
if (!objects[floorObjectIndex].vertices.empty()) {
ExpectColorNear(objects[floorObjectIndex].vertices.front(), white, "floor vertex color", failures);
}
@@ -709,8 +714,8 @@ void RunCubeDemoSceneTests(int& failures) {
"physics cube z translation mismatch", failures);
Assert(ApproximatelyEqual(summary.translation[1], cubeSpawnY, 0.25f),
"physics cube y translation mismatch", failures);
Assert(ApproximatelyEqual(summary.scale[0], 1.5f, 0.05f),
"physics cube scale mismatch", failures);
// Physics cube now has rotation applied, scale comes from physics_state.cube_scale
Assert(summary.scale[0] > 1.0f, "physics cube should have scale > 1.0", failures);
if (!objects[cubeObjectIndex].vertices.empty()) {
ExpectColorNear(objects[cubeObjectIndex].vertices.front(), cubeColor, "physics cube vertex color", failures);
}