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Implement OutlineCircle2D and FillCircle2D

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josh
2024-01-24 21:52:25 -05:00
parent 8dd5ab1546
commit 004c4e6fd4
3 changed files with 180 additions and 85 deletions
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148
src/JGL/JGL.cpp
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@@ -26,57 +26,107 @@ namespace JGL
};
}
void FillRect2D(const Color3 &color, const Vector2 &pos, const Vector2 &size) {
auto vp_pos = ScreenToViewport(pos);
auto vp_size = ScreenToViewport(size);
glBegin(GL_QUADS);
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();
namespace J2D
{
void FillRect2D(const Color3 &color, const Vector2 &pos, const Vector2 &size) {
auto vp_pos = ScreenToViewport(pos);
auto vp_size = ScreenToViewport(size);
glBegin(GL_QUADS);
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 OutlineRect2D(const Color3 &color, const Vector2 &pos, const Vector2 &size, float thickness) {
auto vp_pos = ScreenToViewport(pos);
auto vp_size = ScreenToViewport(size);
glBegin(GL_LINE_LOOP);
glLineWidth(thickness);
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 DrawLine2D(const Color3 &color, const Vector2 &A, const Vector2 &B, float thickness) {
auto vp_a = ScreenToViewport(A);
auto vp_b = ScreenToViewport(B);
glBegin(GL_LINE);
glLineWidth(thickness);
glColor3f(color.r, color.g, color.b);
glVertex2f(vp_a.x, vp_a.y);
glVertex2f(vp_b.x, vp_b.y);
glEnd();
}
void DrawLine2D(const Color3 &color, float x, float y, float w, float h, float thickness) {
DrawLine2D(color, {x, y}, {w, h}, thickness);
}
void DrawPixel2D(const Color3 &color, float x, float y) {
DrawPixel2D(color, {x, y});
}
void DrawPixel2D(const Color3 &color, const Vector2 &coordinates) {
auto vp_pos = ScreenToViewport(coordinates);
glBegin(GL_POINT);
glColor3f(color.r, color.g, color.b);
glVertex2f(vp_pos.x, vp_pos.y);
glEnd();
}
void
OutlineCircle2D(const Color3 &color, const Vector2 &center, float radius, int subdivisions, float thickness) {
glBegin(GL_LINE_LOOP);
GLfloat angle;
glColor3f(color.r, color.g, color.b);
float step = (2.f * M_PI) / (float)subdivisions;
for (angle = 0.0f; angle < (2.f * M_PI); angle += step)
{
GLfloat x = radius * sin(angle);
GLfloat y = radius * cos(angle);
x += center.x;
y += center.y;
glVertex2f(x, y);
}
glEnd();
}
void FillCircle2D(const Color3 &color, const Vector2 &center, float radius, int subdivisions) {
glBegin(GL_POLYGON);
GLfloat angle;
glColor3f(color.r, color.g, color.b);
float step = (2.f * M_PI) / (float)subdivisions;
for (angle = 0.0f; angle < (2.f * M_PI); angle += step)
{
GLfloat x = radius * sin(angle);
GLfloat y = radius * cos(angle);
x += center.x;
y += center.y;
glVertex2f(x, y);
}
glEnd();
}
}
void OutlineRect2D(const Color3 &color, const Vector2 &pos, const Vector2 &size, float thickness) {
auto vp_pos = ScreenToViewport(pos);
auto vp_size = ScreenToViewport(size);
glBegin(GL_LINE_LOOP);
glLineWidth(thickness);
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 DrawLine2D(const Color3 &color, const Vector2 &A, const Vector2 &B, float thickness) {
auto vp_a = ScreenToViewport(A);
auto vp_b = ScreenToViewport(B);
glBegin(GL_LINE);
glLineWidth(thickness);
glColor3f(color.r, color.g, color.b);
glVertex2f(vp_a.x, vp_a.y);
glVertex2f(vp_b.x, vp_b.y);
glEnd();
}
void DrawLine2D(const Color3 &color, float x, float y, float w, float h, float thickness) {
DrawLine2D(color, {x, y}, {w, h}, thickness);
}
void JGL::DrawPixel2D(const Color3 &color, float x, float y) {
DrawPixel2D(color, {x, y});
}
void DrawPixel2D(const Color3 &color, const Vector2 &coordinates) {
auto vp_pos = ScreenToViewport(coordinates);
glBegin(GL_POINT);
glColor3f(color.r, color.g, color.b);
glVertex2f(vp_pos.x, vp_pos.y);
glEnd();
namespace J3D
{
void DrawLine3D(const Color3& color, const Vector3& A, const Vector3& B, float thickness)
{
glBegin(GL_LINE);
glLineWidth(thickness);
glColor3f(color.r, color.g, color.b);
glVertex3f(A.x, A.y, A.z);
glVertex3f(B.x, B.y, B.z);
glEnd();
}
}
}