typedef v3f line_co;
+#define VG__RED 0xff0000ff
+#define VG__GREEN 0xff00ff00
+#define VG__BLUE 0xffff0000
+#define VG__WHITE 0xffffffff
+#define VG__BLACK 0xff000000
+#define VG__CLEAR 0x00ffffff
+#define VG__PINK 0xffff00ff
+#define VG__YELOW 0xff00ffff
+#define VG__CYAN 0xffffff00
+#define VG__NONE 0x00000000
+
static struct vg_shader _shader_lines =
{
.name = "[vg] lines",
{
vg_info( "vg_lines_init\n" );
- vg_convar_push( (struct vg_convar){
+ vg_var_push( (struct vg_var){
.name = "vg_lines",
.data = &vg_lines.draw,
- .data_type = k_convar_dtype_i32,
+ .data_type = k_var_dtype_i32,
.opt_i32 = { .min=0, .max=1, .clamp=1 },
.persistent = 1
});
vg_line2( from, to, colour, colour );
}
+VG_STATIC void line_tangent_basis( v3f n, v3f tx, v3f ty )
+{
+ /* Compute tangent basis (box2d) */
+ if( fabsf( n[0] ) >= 0.57735027f )
+ {
+ tx[0] = n[1];
+ tx[1] = -n[0];
+ tx[2] = 0.0f;
+ }
+ else
+ {
+ tx[0] = 0.0f;
+ tx[1] = n[2];
+ tx[2] = -n[1];
+ }
+
+ v3_normalize( tx );
+ v3_cross( n, tx, ty );
+}
+
+VG_STATIC void vg_line_arrow( line_co co, line_co dir, float size, u32 colour )
+{
+ v3f p1, tx, ty, p2, p3;
+ v3_muladds( co, dir, size, p1 );
+ line_tangent_basis( dir, tx, ty );
+
+ v3_muladds( p1, dir, -size * 0.125f, p2 );
+ v3_muladds( p2, ty, size * 0.125f, p3 );
+ v3_muladds( p2, ty, -size * 0.125f, p2 );
+
+ vg_line( co, p1, colour );
+ vg_line( p1, p2, colour );
+ vg_line( p1, p3, colour );
+}
+
VG_STATIC void vg_line_boxf( boxf box, u32 colour )
{
v3f p000, p001, p010, p011, p100, p101, p110, p111;