System info & network

code/physics/body.cpp

@@ -0,0 +1,28 @@
+#include "body.h"
+#include "../lib/geometry.h"
+#include <assert.h>
+
+Box phy_aabb_from_body(phy_body *body)
+{
+	Box aabb;
+	switch(body->shape)
+	{
+		case PHY_SHAPE_SPHERE: {
+			aabb.min = body->position - body->sphere.radius * v3{1,1,1};
+			aabb.max = body->position + body->sphere.radius * v3{1,1,1};
+		} break;
+		case PHY_SHAPE_BOX: {
+			v3 box[8]; build_cube_vertices(box);
+			m3 rotoscale = M3(rotation_v3(body->rotation) * scale_v3(body->box.dimensions));
+			for(u32 i = 0; i < 8; i++)
+				box[i] = body->position + rotoscale * box[i];
+
+			aabb = box_from_point_cloud(box, 8);
+		} break;
+		case PHY_SHAPE_MESH: {
+			assert(false && "Yet to be implemented");
+		} break;
+		default: { assert(false && "Unknown shape"); }
+	}
+	return aabb;
+}