josh/JGL
1
0
Fork 1
Code Issues 14 Pull Requests Actions Packages Projects Releases 58 Wiki Activity

Implement OutlineRect2D

Browse Source
This commit is contained in:
josh
2024-01-20 14:02:43 -05:00
parent d49084e99e
commit c5f60e3699
2 changed files with 16 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
include/JGL/JGL.h
View File

@@ -47,7 +47,7 @@ namespace JGL {
Vector2 ScreenToViewport(const Vector2& v) Vector2 ScreenToViewport(const Vector2& v)
{ {
// TODO: Implement matrix transformation // TODO: Implement (CORRECT!!!) matrix transformation
float x = v.x / 600.f; float x = v.x / 600.f;
float y = v.y / 600.f; float y = v.y / 600.f;
@@ -57,7 +57,7 @@ namespace JGL {
} }
Vector2 ViewportToScreen(const Vector2& v) Vector2 ViewportToScreen(const Vector2& v)
{ {
// TODO: Implement matrix transformation // TODO: Implement (CORRECT!!!) matrix transformation
} }
void DrawPixel2D(const Color3 &, int x, int y); void DrawPixel2D(const Color3 &, int x, int y);
@@ -88,7 +88,18 @@ namespace JGL {
glVertex2f(vp_pos.x + vp_size.x, vp_pos.y); glVertex2f(vp_pos.x + vp_size.x, vp_pos.y);
glEnd(); glEnd();
} }
void OutlineRect2D (const Vector2& pos, const Vector2& size, const Color3& color, float thickness = 1); void OutlineRect2D (const Vector2& pos, const Vector2& size, const Color3& color, float thickness = 1)
{
auto vp_pos = ScreenToViewport(pos);
auto vp_size = ScreenToViewport(size);
glBegin(GL_LINE_LOOP);
glColor3f(color.r, color.g, color.b);
glVertex2f(vp_pos.x, vp_pos.y);
glVertex2f(vp_pos.x, vp_pos.y + vp_size.y);
glVertex2f(vp_pos.x + vp_size.x, vp_pos.y + vp_size.y);
glVertex2f(vp_pos.x + vp_size.x, vp_pos.y);
glEnd();
}
void FillRoundedRect2D (const Vector2& pos, const Vector2& size, const Color3& color, float radius); void FillRoundedRect2D (const Vector2& pos, const Vector2& size, const Color3& color, float radius);
void OutlineRoundedRect2D(const Vector2& pos, const Vector2& size, const Color3& color, float radius, float thickness = 1); void OutlineRoundedRect2D(const Vector2& pos, const Vector2& size, const Color3& color, float radius, float thickness = 1);
void OutlinePolygon2D (); void OutlinePolygon2D ();

3
main.cpp
View File

@@ -42,7 +42,8 @@ void display() {
glVertex2f(-0.9f, -0.3f); glVertex2f(-0.9f, -0.3f);
glEnd(); glEnd();
JGL::FillRect2D({64, 64}, {128, 128}, JGL::Colors::White); JGL::FillRect2D({0, 0}, {128, 128}, JGL::Colors::White);
JGL::OutlineRect2D({0, 0}, {128, 128}, JGL::Colors::BrightRed);
glBegin(GL_TRIANGLES); glBegin(GL_TRIANGLES);
glColor3f(0.0f, 0.0f, 1.f); // Blue glColor3f(0.0f, 0.0f, 1.f); // Blue