fixes + Block.replaceable

src/definitions.cpp

@@ -13,6 +13,7 @@ using glm::vec3;
 // All in-game definitions (blocks, items, etc..)
 void setup_definitions(ContentBuilder* builder) {
 	Block* block = new Block("core:air", "air");
+	block->replaceable = true;
 	block->drawGroup = 1;
 	block->lightPassing = true;
 	block->skyLightPassing = true;
@@ -61,6 +62,7 @@ void setup_definitions(ContentBuilder* builder) {
 	block->skyLightPassing = false;
 	block->obstacle = false;
 	block->selectable = false;
+	block->replaceable = true;
 	builder->add(block);
 
 	block = new Block("base:sand", "sand");
@@ -74,6 +76,7 @@ void setup_definitions(ContentBuilder* builder) {
 	block->drawGroup = 5;
 	block->lightPassing = true;
 	block->obstacle = false;
+	block->replaceable = true;
 	block->model = BlockModel::xsprite;
 	block->hitbox.scale(vec3(0.7f), vec3(0.5f, 0.0f, 0.5f));
 	builder->add(block);
@@ -82,6 +85,7 @@ void setup_definitions(ContentBuilder* builder) {
 	block->drawGroup = 5;
 	block->lightPassing = true;
 	block->obstacle = false;
+	block->replaceable = true;
 	block->model = BlockModel::xsprite;
 	block->hitbox.scale(vec3(0.7f));
 	builder->add(block);

src/logic/PlayerController.cpp

@@ -238,9 +238,12 @@ void PlayerController::updateInteraction(){
 				y = (int)(iend.y)+(int)(norm.y);
 				z = (int)(iend.z)+(int)(norm.z);
 			}
-			if (!level->physics->isBlockInside(x,y,z, player->hitbox)){
-				chunks->set(x, y, z, player->choosenBlock, states);
-				lighting->onBlockSet(x,y,z, player->choosenBlock);
+			vox = chunks->get(x, y, z);
+			if (vox && (block = contentIds->getBlockDef(vox->id))->replaceable) {
+				if (!level->physics->isBlockInside(x,y,z, player->hitbox)){
+					chunks->set(x, y, z, player->choosenBlock, states);
+					lighting->onBlockSet(x,y,z, player->choosenBlock);
+				}
 			}
 		}
 		if (Events::jactive(BIND_PLAYER_PICK)){

src/voxels/Block.h

@@ -34,6 +34,7 @@ public:
 	bool skyLightPassing = false;
 	bool obstacle = true;
 	bool selectable = true;
+	bool replaceable = false;
 	bool breakable = true;
 	bool rotatable = false;
 	AABB hitbox;

src/voxels/Chunks.cpp

@@ -221,14 +221,21 @@ voxel* Chunks::rayCast(vec3 start,
 			
 			// TODO: replace this dumb solution with something better
 			if (def && !def->rt.solid) {
+				const int gridSize = BLOCK_AABB_GRID * 2;
 				const AABB& box = def->hitbox;
-				const int subs = BLOCK_AABB_GRID;
+				const int subs = gridSize;
 				iend = vec3(ix, iy, iz);
 				end -= iend;
-				for (int i = 0; i < subs; i++) {
-					end.x += dx / float(subs);
-					end.y += dy / float(subs);
-					end.z += dz / float(subs);
+				int six = end.x * gridSize;
+				int siy = end.y * gridSize;
+				int siz = end.z * gridSize;
+				float stxMax = (txDelta < infinity) ? txDelta * xdist : infinity;
+				float styMax = (tyDelta < infinity) ? tyDelta * ydist : infinity;
+				float stzMax = (tzDelta < infinity) ? tzDelta * zdist : infinity;
+				for (int i = 0; i < subs*2; i++) {
+					end.x = six / float(gridSize);
+					end.y = siy / float(gridSize);
+					end.z = siz / float(gridSize);
 					if (box.inside(end)) {
 						end += iend;
 						norm.x = norm.y = norm.z = 0.0f;
@@ -237,6 +244,27 @@ voxel* Chunks::rayCast(vec3 start,
 						if (steppedIndex == 2) norm.z = -stepz;
 						return voxel;
 					}
+					if (stxMax < styMax) {
+						if (stxMax < stzMax) {
+							six += stepx;
+							stxMax += txDelta;
+							steppedIndex = 0;
+						} else {
+							siz += stepz;
+							stzMax += tzDelta;
+							steppedIndex = 2;
+						}
+					} else {
+						if (styMax < stzMax) {
+							siy += stepy;
+							styMax += tyDelta;
+							steppedIndex = 1;
+						} else {
+							siz += stepz;
+							stzMax += tzDelta;
+							steppedIndex = 2;
+						}
+					}
 				}
 			} else {
 				iend.x = ix;

src/world/Level.cpp

@@ -13,7 +13,6 @@
 Level::Level(World* world, const Content* content, Player* player, EngineSettings& settings)
 	  : world(world),
 	    content(content),
-		contentIds(content->indices),
 		player(player),
 		chunksStorage(new ChunksStorage(this)),
 		events(new LevelEvents()) ,
@@ -22,11 +21,8 @@ Level::Level(World* world, const Content* content, Player* player, EngineSetting
 
     uint matrixSize = (settings.chunks.loadDistance+
 					   settings.chunks.padding) * 2;
-    chunks = new Chunks(matrixSize, matrixSize, 
-		0, 0, 
-		world->wfile, 
-		events,
-		content);
+    chunks = new Chunks(matrixSize, matrixSize, 0, 0, 
+						world->wfile, events, content);
 	lighting = new Lighting(content, chunks);
 
 	events->listen(EVT_CHUNK_HIDDEN, [this](lvl_event_type type, Chunk* chunk) {

src/world/Level.h

@@ -17,7 +17,6 @@ class ChunksStorage;
 class PlayerController;
 
 class Level {
-	const ContentIndices* const contentIds;
 public:
 	World* world;
 	const Content* const content;