initial commit

1 files changed, 141 insertions, 0 deletions

diff --git a/src/SelOutlineRenderer.c b/src/SelOutlineRenderer.c
new file mode 100644
index 0000000..1082d8a
--- /dev/null
+++ b/src/SelOutlineRenderer.c
@@ -0,0 +1,141 @@
+#include "SelOutlineRenderer.h"
+#include "PackedCol.h"
+#include "Graphics.h"
+#include "Game.h"
+#include "Event.h"
+#include "Picking.h"
+#include "Funcs.h"
+#include "Camera.h"
+#include "Options.h"
+
+static GfxResourceID selOutline_vb;
+static float base_size;
+static PackedCol color;
+#define SELOUTLINE_NUM_VERTICES (16 * 6)
+
+#define SelOutline_Y(y)\
+0,y,1,  0,y,2,  1,y,2,  1,y,1,\
+3,y,1,  3,y,2,  2,y,2,  2,y,1,\
+0,y,0,  0,y,1,  3,y,1,  3,y,0,\
+0,y,3,  0,y,2,  3,y,2,  3,y,3,
+
+#define SelOutline_X(x)\
+x,1,0,  x,2,0,  x,2,1,  x,1,1,\
+x,1,3,  x,2,3,  x,2,2,  x,1,2,\
+x,0,0,  x,1,0,  x,1,3,  x,0,3,\
+x,3,0,  x,2,0,  x,2,3,  x,3,3,
+
+#define SelOutline_Z(z)\
+0,1,z,  0,2,z,  1,2,z,  1,1,z,\
+3,1,z,  3,2,z,  2,2,z,  2,1,z,\
+0,0,z,  0,1,z,  3,1,z,  3,0,z,\
+0,3,z,  0,2,z,  3,2,z,  3,3,z,
+
+
+static void BuildMesh(struct RayTracer* selected) {
+	static const cc_uint8 indices[288] = {
+		SelOutline_Y(0) SelOutline_Y(3) /* YMin, YMax */
+		SelOutline_X(0) SelOutline_X(3) /* XMin, XMax */
+		SelOutline_Z(0) SelOutline_Z(3) /* ZMin, ZMax */
+	};
+	
+	struct VertexColoured* ptr;
+	int i;
+	Vec3 delta;
+	float dist, offset;
+	float size, scale;
+	Vec3 coords[4];
+
+	Vec3_Sub(&delta, &Camera.CurrentPos, &selected->Min);
+	dist = Vec3_LengthSquared(&delta);
+
+	offset = 0.01f;
+	if (dist < 4.0f * 4.0f) offset = 0.00625f;
+	if (dist < 2.0f * 2.0f) offset = 0.00500f;
+
+	scale = 1.0f / 16.0f;
+	if (dist < 32.0f * 32.0f) scale = 1.0f / 32.0f;
+	if (dist < 16.0f * 16.0f) scale = 1.0f / 64.0f;
+	if (dist <  8.0f *  8.0f) scale = 1.0f / 96.0f;
+	if (dist <  4.0f *  4.0f) scale = 1.0f / 128.0f;
+	if (dist <  2.0f *  2.0f) scale = 1.0f / 192.0f;
+	size = base_size * scale;
+	
+	/*  How a face is laid out: 
+	                 #--#-------#--#<== OUTER_MAX (3)
+	                 |  |       |  |
+	                 |  #-------#<===== INNER_MAX (2)
+	                 |  |       |  |
+					 |  |       |  |
+	                 |  |       |  |
+	(1) INNER_MIN =====>#-------#  |
+	                 |  |       |  |
+	(0) OUTER_MIN ==>#--#-------#--#
+
+	- these are used to fake thick lines, by making the lines appear slightly inset
+	- note: actual difference between inner and outer is much smaller than the diagram
+	*/
+	Vec3_Add1(&coords[0], &selected->Min, -offset);
+	Vec3_Add1(&coords[1], &coords[0],      size);
+	Vec3_Add1(&coords[3], &selected->Max,  offset);
+	Vec3_Add1(&coords[2], &coords[3],     -size);
+	
+	ptr = (struct VertexColoured*)Gfx_LockDynamicVb(selOutline_vb, 
+									VERTEX_FORMAT_COLOURED, SELOUTLINE_NUM_VERTICES);
+	for (i = 0; i < Array_Elems(indices); i += 3, ptr++) 
+	{
+		ptr->x   = coords[indices[i + 0]].x;
+		ptr->y   = coords[indices[i + 1]].y;
+		ptr->z   = coords[indices[i + 2]].z;
+		ptr->Col = color;
+	}
+	Gfx_UnlockDynamicVb(selOutline_vb);
+}
+
+void SelOutlineRenderer_Render(struct RayTracer* selected, cc_bool dirty) {
+	if (Gfx.LostContext) return;
+
+	if (!selOutline_vb)
+		selOutline_vb = Gfx_CreateDynamicVb(VERTEX_FORMAT_COLOURED, SELOUTLINE_NUM_VERTICES);
+	
+	Gfx_SetAlphaBlending(true);
+	Gfx_SetDepthWrite(false);
+	Gfx_SetVertexFormat(VERTEX_FORMAT_COLOURED);
+
+	if (dirty) BuildMesh(selected);
+	else Gfx_BindDynamicVb(selOutline_vb);
+
+	Gfx_DrawVb_IndexedTris(SELOUTLINE_NUM_VERTICES);
+	Gfx_SetDepthWrite(true);
+	Gfx_SetAlphaBlending(false);
+}
+
+
+/*########################################################################################################################*
+*-----------------------------------------------SelOutlineRenderer component----------------------------------------------*
+*#########################################################################################################################*/
+static void OnContextLost(void* obj) {
+	Gfx_DeleteDynamicVb(&selOutline_vb);
+}
+
+static void OnInit(void) {
+	int opacity;
+	cc_uint8 rgb[3];
+	Event_Register_(&GfxEvents.ContextLost, NULL, OnContextLost);
+
+	base_size = Options_GetFloat(OPT_SELECTED_BLOCK_OUTLINE_SCALE, 1, 16, 1);
+	opacity   = Options_GetInt(OPT_SELECTED_BLOCK_OUTLINE_OPACITY, 0, 255, 102);
+
+	if (Options_GetColor(OPT_SELECTED_BLOCK_OUTLINE_COLOR, rgb)) {
+		color = PackedCol_Make(rgb[0], rgb[1], rgb[2], opacity);
+	} else {
+		color = PackedCol_Make(0, 0, 0, opacity); /* Black by default */
+	}
+}
+
+static void OnFree(void) { OnContextLost(NULL); }
+
+struct IGameComponent SelOutlineRenderer_Component = {
+	OnInit, /* Init */
+	OnFree, /* Free */
+};