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修复可视化collider功能在旋转的模型中出现偏移bug

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This commit is contained in:
Atdunbg
2025-06-25 12:18:37 +08:00
parent fdb1ada6cd
commit 9447453e47
2 changed files with 22 additions and 40 deletions
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53
Sandbox/src/Editor/EditorLayer.cpp
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@ -152,32 +152,17 @@ namespace Hazel
{
auto [tc, bc2D] = bcview.get<TransformComponent, BoxCollider2DComponent>(entity);
glm::vec3 scaledOffset = glm::vec3(
bc2D.Offset.x * tc.Scale.x,
bc2D.Offset.y * tc.Scale.y,
0.0f
);
glm::vec3 translation1 = tc.Translation + scaledOffset + glm::vec3(0.0f, 0.0f, 0.001f);
// 创建完整的模型变换矩阵
glm::mat4 model = glm::translate(glm::mat4(1.0f), translation1)
glm::mat4 model = glm::translate(glm::mat4(1.0f), tc.Translation)
* glm::rotate(glm::mat4(1.0f), tc.Rotation.z, glm::vec3(0.0f, 0.0f, 1.0f))
* glm::scale(glm::mat4(1.0f), tc.Scale);
// 将 offset 从局部空间变换到世界空间
glm::vec4 worldOffset = model * glm::vec4(bc2D.Offset.x, bc2D.Offset.y, 0.0f, 1.0f);
// 最终位置 = 实体位置 + 变换后的offset + Z偏移
glm::vec3 translation = glm::vec3(worldOffset) + glm::vec3(0.0f, 0.0f, 0.001f);
// 计算缩放 (Size 是半宽半高，所以要乘2)
// glm::vec3 translation = glm::vec3(worldOffset) + glm::vec3(0.0f, 0.0f, 0.001f);
glm::vec3 scale = tc.Scale * glm::vec3(bc2D.Size * 2.0f, 1.0f);
// 创建碰撞体变换矩阵 (包含旋转)
glm::mat4 transform =
glm::translate(glm::mat4(1.0f), translation)
glm::translate(glm::mat4(1.0f), glm::vec3(worldOffset))
* glm::rotate(glm::mat4(1.0f), tc.Rotation.z, glm::vec3(0.0f, 0.0f, 1.0f))
* glm::scale(glm::mat4(1.0f), scale);
@ -185,30 +170,24 @@ namespace Hazel
}
/*
auto bcview = m_ActiveScene->GetAllEntitiesWith<TransformComponent, BoxCollider2DComponent>();
for (auto entity : bcview)
{
auto [tc, bc2D] = bcview.get<TransformComponent, BoxCollider2DComponent>(entity);
glm::vec3 translation = tc.Translation + glm::vec3(bc2D.Offset, 0.001f);
glm::vec3 scale = tc.Scale * glm::vec3(bc2D.Size * 2.0f, 1.0f);
glm::mat4 transform = glm::translate(glm::mat4(1.0f), translation) * glm::rotate(
glm::mat4(1.0f), tc.Rotation.z, glm::vec3(0.0f, 0.0f, 1.0f)) * glm::scale(glm::mat4(1.0f), scale);
Renderer2D::DrawRect(transform, glm::vec4(0.2, 1.0f, 0.2f, 1.0f));
}
*/
// circle collider
auto ccview = m_ActiveScene->GetAllEntitiesWith<TransformComponent, CircleCollider2DComponent>();
for (auto entity : ccview)
{
auto [tc, cc2D] = ccview.get<TransformComponent, CircleCollider2DComponent>(entity);
glm::vec3 translation = tc.Translation + glm::vec3(cc2D.Offset, 0.001f);
glm::vec3 scale = tc.Scale * glm::vec3(cc2D.Radius * 2.0f);
glm::mat4 model = glm::translate(glm::mat4(1.0f), tc.Translation)
* glm::rotate(glm::mat4(1.0f), tc.Rotation.z, glm::vec3(0.0f, 0.0f, 1.0f))
* glm::scale(glm::mat4(1.0f), tc.Scale);
glm::mat4 transform = glm::translate(glm::mat4(1.0f), translation) * glm::scale(glm::mat4(1.0f), scale);
Renderer2D::DrawCircle(transform, glm::vec4(0.2, 1.0f, 0.2f, 1.0f), Renderer2D::GetLineWidth() * 0.01f);
glm::vec4 worldOffset = model * glm::vec4(cc2D.Offset.x, cc2D.Offset.y, 0.0f, 1.0f);
// glm::vec3 translation = glm::vec3(worldOffset) + glm::vec3(0.0f, 0.0f, 0.001f);
glm::vec3 scale = tc.Scale * glm::vec3(cc2D.Radius * 2.05f);
glm::mat4 transform =
glm::translate(glm::mat4(1.0f), glm::vec3(worldOffset))
* glm::rotate(glm::mat4(1.0f), tc.Rotation.z, glm::vec3(0.0f, 0.0f, 1.0f))
* glm::scale(glm::mat4(1.0f), scale);
Renderer2D::DrawCircle(transform, glm::vec4(0.2, 1.0f, 0.2f, 1.0f), Renderer2D::GetLineWidth() * 0.015f);
}
}
Renderer2D::EndScene();