Creeper and CreeperRenderer

Author: break-core

source/client/renderer/entity/CreeperRenderer.cpp

@@ -17,11 +17,50 @@ CreeperRenderer::~CreeperRenderer()
 
 int CreeperRenderer::getOverlayColor(Mob* pMob, float a, float b)
 {
-	// TODO
-	return 0;
+	Creeper* pCreeper = (Creeper*)pMob;
+
+	float step = pCreeper->getSwelling(b);
+
+	if (static_cast<int>(step * 10.0f) % 2 == 0)
+	{
+		return 0;
+	}
+
+	int _a = step * 0.2f * 255.0f;
+
+	if (_a < 0) { _a = 0; }
+
+	if (_a > 255) { _a = 255; }
+
+	int red = 255;
+	int green = 255;
+	int blue = 255;
+
+	return _a << 24 | red << 16 | green << 8 | blue;
 }
 
 void CreeperRenderer::scale(Mob* pMob, float f)
 {
-	// TODO
+	Creeper* pCreeper = (Creeper*)pMob;
+
+	float g = pCreeper->getSwelling(f);
+	float wobble = 1.0f + Mth::sin(g * 100.0f) * g * 0.01f;
+
+	if (g < 0.0f) 
+	{
+		g = 0.0f;
+	}
+
+	if (g > 1.0f) 
+	{
+		g = 1.0f;
+	}
+
+	g *= g;
+	g *= g;
+
+	float s = (1.0f + g * 0.4f) * wobble;
+	float hs = (1.0f + g * 0.1f) / wobble;
+
+	glScalef(s, hs, s);
 }

source/client/renderer/entity/CreeperRenderer.hpp

@@ -8,6 +8,7 @@
 #pragma once
 
 #include "MobRenderer.hpp"
+#include "world/entity/Creeper.hpp"
 
 class CreeperRenderer : public MobRenderer
 {

source/world/entity/Creeper.cpp

@@ -0,0 +1,78 @@
+#include "world/entity/Creeper.hpp"
+
+Creeper::Creeper(Level* pLevel) : Monster(pLevel)
+{
+	m_texture = "mob/creeper.png";
+	m_swell = 0;
+	m_oldSwell = 0;
+	m_swellDir = -1;
+	m_maxSwell = 0;
+}
+
+void Creeper::tick()
+{
+	m_oldSwell = m_swell;
+	if (m_pLevel->m_bIsMultiplayer)
+	{
+		int swellDir = getSwellDir();
+		if (swellDir > 0 && m_swell == 0)
+		{
+			m_pLevel->playSound(this, "random.fuse", 1.0f, 0.5f);
+		}
+
+		m_swell += swellDir;
+
+		if (m_swell < 0) {
+			m_swell = 0;
+		}
+
+		if (m_swell >= 30)
+		{
+			m_swell = 30;
+		}
+	}
+
+	Monster::tick();
+}
+
+void Creeper::die(Entity* pCulprit)
+{
+	Monster::die(pCulprit);
+
+	// @NOTE: Disc dropping not implemented yet
+}
+
+void Creeper::checkHurtTarget(Entity* pEnt, float f)
+{
+	int swellDir = getSwellDir();
+	if (swellDir <= 0 && f < 3.0f || swellDir > 0 && f < 7.0f)
+	{
+		if (m_swell == 0)
+		{
+			m_pLevel->playSound(this, "random.fuse", 1.0f, 0.5f);
+		}
+
+		setSwellDir(1);
+		m_swell++;
+		if (m_swell >= 30)
+		{
+			m_pLevel->explode(this, m_pos, 3.0f);
+			remove();
+		}
+
+		m_bHoldGround = true;
+	}
+	else
+	{
+		setSwellDir(-1);
+		m_swell--;
+		if (m_swell < 0) {
+			m_swell = 0;
+		}
+	}
+}
+
+float Creeper::getSwelling(float f)
+{
+	return (m_oldSwell + (m_swell - m_oldSwell) * f) / 28.0f;
+}

source/world/entity/Creeper.hpp

@@ -0,0 +1,26 @@
+#pragma once
+
+#include "world/entity/Monster.hpp"
+
+class Creeper : public Monster
+{
+public:
+	Creeper(Level* pLevel);
+
+	void tick() override;
+	std::string getHurtSound() const override { return "mob.creeper"; }
+	std::string getDeathSound() const override { return "mob.creeperdeath"; }
+	float getSwelling(float f);
+	int getSwellDir() { return m_swellDir; }
+	void setSwellDir(int value) { m_swellDir = value; }
+	int getDeathLoot() const override { return ITEM_SULPHUR; }
+
+	virtual void die(Entity* pCulprit) override;
+	virtual void checkHurtTarget(Entity*, float) override;
+
+public:
+	int m_swell;
+	int m_oldSwell;
+	int m_swellDir;
+	int m_maxSwell;
+};

source/world/entity/Monster.hpp

@@ -1,3 +1,5 @@
+#pragma once
+
 #include "world/entity/PathfinderMob.hpp"
 #include "world/level/Level.hpp"