[Block] Now possible to change grass into dirt.

include/world/Block.hpp

@@ -18,10 +18,14 @@
 
 #include "Types.hpp"
 
+class Chunk;
+
 class Block {
 	public:
 		Block(u32 id);
 
+		bool onClickEvent(Chunk *chunk);
+
 		glm::vec4 getTexCoords(int face) const;
 
 		u32 id() const { return m_id; }

source/hud/BlockCursor.cpp

@@ -99,6 +99,13 @@ void BlockCursor::onEvent(const SDL_Event &event) {
 			m_world.setBlock(m_selectedBlock.x, m_selectedBlock.y, m_selectedBlock.z, 0);
 		}
 		else if (event.button.button == SDL_BUTTON_RIGHT) {
+			Block *block = m_world.getBlock(m_selectedBlock.x, m_selectedBlock.y, m_selectedBlock.z);
+
+			Chunk *chunk = m_world.getChunk(m_selectedBlock.x / Chunk::width,
+			                                m_selectedBlock.y / Chunk::height,
+			                                m_selectedBlock.z / Chunk::depth);
+
+			if (block && !block->onClickEvent(chunk)) {
 				int face = m_selectedBlock.w;
 
 				int x = m_selectedBlock.x;
@@ -115,6 +122,7 @@ void BlockCursor::onEvent(const SDL_Event &event) {
 				m_world.setBlock(x, y, z, 9);
 			}
 		}
+	}
 }
 
 void BlockCursor::update(bool useDepthBuffer) {

source/world/Block.cpp

@@ -17,6 +17,20 @@ Block::Block(u32 id) {
 	m_id = id;
 }
 
+#include "Chunk.hpp"
+
+bool Block::onClickEvent(Chunk *chunk) {
+	if (m_id == 3) {
+		m_id = 1;
+
+		chunk->setChanged(true);
+
+		return true;
+	}
+
+	return false;
+}
+
 glm::vec4 Block::getTexCoords(int face) const {
 	u32 id = m_id;