Objectives.

common.mk

@@ -16,6 +16,7 @@ OBJS += hud.o
 OBJS += init.o input.o io.o
 OBJS += lookup.o
 OBJS += main.o map.o maths.o
+OBJS += objectives.o
 OBJS += quadtree.o
 OBJS += text.o textures.o title.o triggers.o
 OBJS += util.o

src/defs.h

@@ -74,6 +74,18 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 #define MAP_TILE_OUTSIDE			255
 #define MAP_TILE_MAX				256
 
+#define ET_ENEMY					0
+#define ET_KEY						1
+#define ET_MIA						2
+
+#define EF_NONE						0
+#define EF_HEART_CELL				(2 << 0)
+
+enum
+{
+	ALIVE_ALIVE
+};
+
 enum
 {
 	CONTROL_LEFT,
@@ -94,6 +106,12 @@ enum
 	TA_CENTER
 };
 
+enum
+{
+	MS_PARTIAL,
+	MS_MISSING_HEART_CELL
+};
+
 enum
 {
 	MSG_STANDARD,

src/structs.h

@@ -75,10 +75,15 @@ typedef struct {
 } Delegate;
 
 struct Entity {
+	char name[MAX_NAME_LENGTH];
+	int type;
 	float x;
 	float y;
 	int w;
 	int h;
+	int alive;
+	long flags;
+	Entity *next;
 };
 
 struct Objective {
@@ -167,6 +172,10 @@ struct Quadtree {
 typedef struct {
 	Entity *bob;
 	Map map;
+	Entity entityHead, *entityTail;
+	int allObjectivesComplete;
+	int currentStatus;
 	Quadtree quadtree;
+	Objective objectiveHead, *objectiveTail;
 	Trigger triggerHead, *triggerTail;
 } World;

src/world/objectives.c

@@ -0,0 +1,184 @@
+/*
+Copyright (C) 2018 Parallel Realities
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+as published by the Free Software Foundation; either version 2
+of the License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+*/
+
+#include "objectives.h"
+
+static int isMissingHeartCell(char *targetName);
+static int countTargetsInWorld(char *targetName);
+
+static int missingHeartCell;
+static int isReturnVisit;
+static int isEliminateAllEnemies;
+
+void initObjectives(void)
+{
+	int totalTargets;
+	Objective *o;
+	
+	isReturnVisit = world.currentStatus == MS_PARTIAL || world.currentStatus == MS_MISSING_HEART_CELL;
+	missingHeartCell = world.currentStatus == MS_MISSING_HEART_CELL;
+
+	for (o = world.objectiveHead.next ; o != NULL ; o = o->next)
+	{
+		totalTargets = countTargetsInWorld(o->targetName);
+
+		if (strcmp(o->targetName, "ENEMY") == 0)
+		{
+			isEliminateAllEnemies = 1;
+		}
+
+		if (o->totalValue == 0)
+		{
+			o->totalValue = totalTargets;
+		}
+
+		if (o->targetValue == 0)
+		{
+			if (strcmp(o->targetName, "KEY") == 0)
+			{
+				o->targetValue = totalTargets;
+			}
+			else
+			{
+				o->targetValue = (int) (totalTargets * AUTO_THRESHOLD);
+			}
+		}
+
+		if (o->required && isReturnVisit)
+		{
+			o->targetValue = o->totalValue;
+			o->required = 0;
+		}
+	}
+}
+
+static int countTargetsInWorld(char *targetName)
+{
+	int num, countMIAs, countEnemies, countKeys;
+	Entity *e;
+	
+	num = 0;
+	countMIAs = strcmp(targetName, "MIA") == 0;
+	countEnemies = strcmp(targetName, "ENEMY") == 0;
+	countKeys = strcmp(targetName, "KEY") == 0;
+
+	for (e = world.entityHead.next ; e != NULL ; e = e->next)
+	{
+		if (strcmp(targetName, e->name) == 0)
+		{
+			num++;
+		}
+
+		if (countMIAs && e->type == ET_MIA)
+		{
+			num++;
+		}
+
+		if (countEnemies && e->type == ET_ENEMY)
+		{
+			num++;
+		}
+
+		if (countKeys && e->type == ET_KEY)
+		{
+			num++;
+		}
+	}
+
+	return num;
+}
+
+void updateObjective(char *targetName)
+{
+	Objective *o;
+	
+	if (missingHeartCell && !isMissingHeartCell(targetName))
+	{
+		return;
+	}
+
+	for (o = world.objectiveHead.next ; o != NULL ; o = o->next)
+	{
+		if (strcmp(o->targetName, targetName) == 0)
+		{
+			o->currentValue++;
+
+			if (strcmp(o->targetName, "KEY") != 0)
+			{
+				if (o->currentValue == o->targetValue)
+				{
+					setGameplayMessage(MSG_OBJECTIVE, "%s - Objective Complete!", o->description);
+				}
+				else if (o->currentValue < o->targetValue)
+				{
+					if (strcmp(o->targetName, "ENEMY") != 0)
+					{
+						setGameplayMessage(MSG_PROGRESS, "%s - (%d / %d)", o->description, o->currentValue, o->targetValue);
+					}
+					else if (o->targetValue - o->currentValue < 10 || o->currentValue % 5 == 0)
+					{
+						setGameplayMessage(MSG_PROGRESS, "%s - (%d / %d)", o->description, o->currentValue, o->targetValue);
+					}
+				}
+			}
+		}
+	}
+
+	world.allObjectivesComplete = 1;
+
+	for (o = world.objectiveHead.next ; o != NULL ; o = o->next)
+	{
+		if (o->currentValue < o->targetValue)
+		{
+			if (o->required || isReturnVisit)
+			{
+				world.allObjectivesComplete = 0;
+			}
+		}
+	}
+
+	if (world.allObjectivesComplete)
+	{
+		setGameplayMessage(MSG_OBJECTIVE, "Mission Complete!");
+	}
+}
+
+static int isMissingHeartCell(char *targetName)
+{
+	Entity *e;
+	
+	if (targetName == NULL || strcmp(targetName, "HEART_CELL") == 0)
+	{
+		return 0;
+	}
+
+	for (e = world.entityHead.next ; e != NULL ; e = e->next)
+	{
+		if (e->alive == ALIVE_ALIVE)
+		{
+			if (e->flags & EF_HEART_CELL)
+			{
+				return 0;
+			}
+		}
+	}
+
+	return 1;
+}

src/world/objectives.h

@@ -0,0 +1,27 @@
+/*
+Copyright (C) 2018 Parallel Realities
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+as published by the Free Software Foundation; either version 2
+of the License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+*/
+
+#include "../common.h"
+
+#define AUTO_THRESHOLD 0.75
+
+extern void setGameplayMessage(int type, char *format, ...);
+
+extern World world;