Continues #2: Artifacts

- Adds sparkle effect on artifacts
- Implements TRAP_AVOIDANCE, IMPROVED_HEARING

src/artifact.c

@@ -19,46 +19,70 @@
 #include "artifact.h"
 #include "util.h"
 #include "texturecache.h"
+#include "particle_engine.h"
 
 static void
 artifact_set_effect(Artifact *a, MagicalEffect effect)
 {
+	Texture *t;
+
 	a->effect = effect;
 	switch (effect) {
 		case IMPROVED_HEARING:
 			a->info.name = "Potion of ear juice";
 			a->info.desc = "Your hearing is slightly improved";
+			t = texturecache_add("Items/Potion.png");
+			sprite_set_texture(a->sprite, t, 0);
+			a->sprite->clip = CLIP16(7*16, 4*16);
 			break;
 		case TRAP_AVOIDANCE:
 			a->info.name = "Boot with nails inside";
 			a->info.desc = "You are lighter on your feet";
+			t = texturecache_add("Items/Boot.png");
+			sprite_set_texture(a->sprite, t, 0);
+			a->sprite->clip = CLIP16(5*16, 0);
 			break;
 		case PIERCING_DAGGERS:
 			a->info.name = "Whetstone";
 			a->info.desc = "Your daggers are sharper";
-			Texture *t = texturecache_add("Items/Rock.png");
+			t = texturecache_add("Items/Rock.png");
 			sprite_set_texture(a->sprite, t, 0);
 			a->sprite->clip = CLIP16(0, 0);
 			break;
 		case CHARGE_THROUGH:
 			a->info.name = "Greasy shield";
 			a->info.desc = "You glide through obstructions";
+			t = texturecache_add("Items/Shield.png");
+			sprite_set_texture(a->sprite, t, 0);
+			a->sprite->clip = CLIP16(16, 0);
 			break;
 		case PUSH_BACK:
 			a->info.name = "Glove of strength";
 			a->info.desc = "Your arm is stronger";
+			t = texturecache_add("Items/Glove.png");
+			sprite_set_texture(a->sprite, t, 0);
+			a->sprite->clip = CLIP16(0, 0);
 			break;
 		case DAGGER_RECOVERY:
 			a->info.name = "Forging hammer";
 			a->info.desc = "Your daggers are more durable";
+			t = texturecache_add("Items/LongWep.png");
+			sprite_set_texture(a->sprite, t, 0);
+			a->sprite->clip = CLIP16(0, 6*16);
 			break;
 		case INCREASED_STUN:
 			a->info.name = "Solid shield";
 			a->info.desc = "Your shield is harder";
+			t = texturecache_add("Items/Shield.png");
+			sprite_set_texture(a->sprite, t, 0);
+			a->sprite->clip = CLIP16(4*16, 0);
 			break;
 		case FEAR_INDUCING:
 			a->info.name = "Ugly shirt";
 			a->info.desc = "You look disgusting";
+			t = texturecache_add("Items/Armor.png");
+			sprite_set_texture(a->sprite, t, 0);
+			a->sprite->clip = CLIP16(6*16, 8*16);
 			break;
 		default:
 			break;
@@ -89,6 +113,10 @@ void
 artifact_render(Artifact *a, Camera *cam)
 {
 	sprite_render(a->sprite, cam);
+	Position pos = a->sprite->pos;
+	pos.x += 4;
+	pos.y += 4;
+	particle_engine_sparkle(pos, (Dimension) { 24, 24 }, C_PURPLE, false);
 }
 
 void

src/defines.h

@@ -67,6 +67,7 @@
 #define C_BLUE (SDL_Color)		{	  0,   0, 255, 255 }
 #define C_YELLOW (SDL_Color)	{	255, 255,   0, 255 }
 #define C_BLACK (SDL_Color)		{	  0,   0,   0, 255 }
+#define C_PURPLE (SDL_Color)	{	137,  16, 229, 255 }
 
 // MSVC seems to have min/max defined.
 // Haven't looked into it further.

src/main.c

@@ -619,6 +619,7 @@ run_menu(void)
 	SDL_RenderClear(gRenderer);
 	SDL_RenderSetViewport(gRenderer, &menuViewport);
 	map_render(gMap, gCamera);
+	map_render_top_layer(gMap, gCamera);
 	roommatrix_render_lightmap(gRoomMatrix, gCamera);
 
 	SDL_RenderSetViewport(gRenderer, NULL);

src/monster.c

@@ -376,7 +376,6 @@ monster_coward_walk(Monster *m, RoomMatrix *rm)
 bool
 monster_move(Monster *m, RoomMatrix *rm)
 {
-	Position monsterRoomPos;
 
 	if (m->state.current == STUNNED) {
 		if (m->state.stepsSinceChange < 3) {
@@ -390,9 +389,10 @@ monster_move(Monster *m, RoomMatrix *rm)
 
 	monster_behaviour_check(m, rm);
 
-	monsterRoomPos = position_to_matrix_coords(&m->sprite->pos);
+	Position originalPosition =
-	rm->spaces[monsterRoomPos.x][monsterRoomPos.y].occupied = false;
+		position_to_matrix_coords(&m->sprite->pos);
-	rm->spaces[monsterRoomPos.x][monsterRoomPos.y].monster = NULL;
+	rm->spaces[originalPosition.x][originalPosition.y].occupied = false;
+	rm->spaces[originalPosition.x][originalPosition.y].monster = NULL;
 
 	switch (m->state.current) {
 		case PASSIVE:
@@ -413,9 +413,25 @@ monster_move(Monster *m, RoomMatrix *rm)
 
 	monster_update_pos(m, m->sprite->pos);
 
-	monsterRoomPos = position_to_matrix_coords(&m->sprite->pos);
+	Position newPos = position_to_matrix_coords(&m->sprite->pos);
-	rm->spaces[monsterRoomPos.x][monsterRoomPos.y].occupied = true;
+	rm->spaces[newPos.x][newPos.y].occupied = true;
-	rm->spaces[monsterRoomPos.x][monsterRoomPos.y].monster = m;
+	rm->spaces[newPos.x][newPos.y].monster = m;
+
+	if (!position_equals(&originalPosition, &newPos)) {
+		Player *p = rm->spaces[rm->playerRoomPos.x][rm->playerRoomPos.y].player;
+		if (p) {
+			Uint32 range = 3 + player_has_artifact(p, IMPROVED_HEARING) * 2;
+			bool withinHearingDist =
+				range > 3 && position_proximity(range,
+								&newPos,
+								&rm->playerRoomPos);
+
+			RoomSpace *space = &rm->spaces[newPos.x][newPos.y];
+			if (space->light < 100 && withinHearingDist) {
+				actiontextbuilder_create_text("!", C_WHITE, &m->sprite->pos);
+			}
+		}
+	}
 
 	m->steps++;
 	if (m->steps >= m->stats.speed) {
@@ -538,7 +554,9 @@ monster_drop_loot(Monster *monster, Map *map, Player *player)
 		linkedlist_append(&map->items, container);
 	}
 
-	Artifact *a = artifact_create(PIERCING_DAGGERS);
+	// TODO: This should not occur every time
+	// Debug code.
+	Artifact *a = artifact_create(TRAP_AVOIDANCE);
 	a->sprite->pos = monster->sprite->pos;
 	linkedlist_append(&map->artifacts, a);
 }

src/particle_engine.c

@@ -82,27 +82,6 @@ create_rect_particle(void)
 	return p;
 }
 
-/*
- * Not used right now, hide for now
-static Particle *
-create_line_particle(void)
-{
-	Particle *p = ec_malloc(sizeof(Particle));
-
-	p->type = LINE;
-	p->velocity = VECTOR2D_NODIR;
-	p->movetime = 100;
-	p->lifetime = 100;
-	p->fixed = false;
-	p->blend_mode = SDL_BLENDMODE_MOD;
-	p->color = C_WHITE;
-	p->particle.line.startPos = (Position) { 0, 0 };
-	p->particle.line.endPos = (Position) { 32, 32 };
-
-	return p;
-}
-*/
-
 static void
 check_engine(void)
 {
@@ -243,7 +222,7 @@ particle_engine_speed_lines(Position pos, Dimension dim, bool horizontal)
 }
 
 void
-particle_engine_sparkle(Position pos, Dimension dim)
+particle_engine_sparkle(Position pos, Dimension dim, SDL_Color color, bool global)
 {
 	for (unsigned int i = 0; i < 10; ++i) {
 		int x, y, yv, alpha;
@@ -266,10 +245,13 @@ particle_engine_sparkle(Position pos, Dimension dim)
 		p->movetime = lt;
 		p->lifetime = lt;
 		p->blend_mode = SDL_BLENDMODE_BLEND;
-		p->color = C_WHITE;
+		p->color = color;
 		p->color.a = (Uint8) alpha;
-		p->fixed = true;
+		p->fixed = global;
+		if (global)
 			linkedlist_append(&engine->global_particles, p);
+		else
+			linkedlist_append(&engine->game_particles, p);
 	}
 }
 

src/particle_engine.h

@@ -41,7 +41,7 @@ void
 particle_engine_speed_lines(Position, Dimension, bool horizontal);
 
 void
-particle_engine_sparkle(Position, Dimension);
+particle_engine_sparkle(Position, Dimension, SDL_Color, bool global);
 
 void
 particle_engine_wind(Vector2d direction);

src/projectile.c

@@ -108,17 +108,18 @@ projectile_update(Projectile *p, UpdateData *data)
 		if (dmg > 0) {
 			gui_log("Your dagger pierced %s for %u damage", space->monster->lclabel, dmg);
 			data->player->stat_data.hits += 1;
+		} else {
+			gui_log("%s dodged your dagger", space->monster->label);
 		}
-		if (get_random(5) == 0
+		monster_hit(space->monster, dmg);
-		    || get_random(5) < player_has_artifact(data->player, DAGGER_RECOVERY)) {
+		player_monster_kill_check(data->player, space->monster);
+		alive = player_has_artifact(data->player, PIERCING_DAGGERS) > p->collisionCount;
+		if (!alive && (get_random(5) == 0
+		    || get_random(5) < player_has_artifact(data->player, DAGGER_RECOVERY))) {
 			Item *item = item_builder_build_item(DAGGER, 1);
 			item->sprite->pos = space->monster->sprite->pos;
 			linkedlist_append(&data->map->items, item);
 		}
-		monster_hit(space->monster, dmg);
-		player_monster_kill_check(data->player, space->monster);
-
-		alive = player_has_artifact(data->player, PIERCING_DAGGERS) > p->collisionCount;
 	}
 	mixer_play_effect(SWORD_HIT);
 	p->alive = alive;

src/skillbar.c

@@ -235,7 +235,7 @@ render_skill_sparkles(SkillBar *bar, Player *player)
 			continue;
 
 		pos.x += 32 * i;
-		particle_engine_sparkle(pos, dim);
+		particle_engine_sparkle(pos, dim, C_WHITE, true);
 	}
 }
 

src/trap.c

@@ -20,6 +20,8 @@
 #include "trap.h"
 #include "util.h"
 #include "gui.h"
+#include "random.h"
+#include "actiontextbuilder.h"
 
 Trap *
 trap_create()
@@ -35,14 +37,20 @@ trap_create()
 void
 trap_activate(Trap *trap, Player *player)
 {
-	player->stats.hp -= trap->damage;
-	player_hit(player, trap->damage);
 	if (!trap->sprite->animate) {
 		gui_log("A trap is sprung!");
 		trap->sprite->animate = true;
 	} else {
 		gui_log("You step in a trap!");
 	}
+
+	if (get_random(10) > 2 * player_has_artifact(player, TRAP_AVOIDANCE)) {
+		player->stats.hp -= trap->damage;
+		player_hit(player, trap->damage);
+	} else {
+		actiontextbuilder_create_text("Dodged", C_YELLOW, &player->sprite->pos);
+		gui_log("You nimbly avoid getting hurt by the trap");
+	}
 }
 
 void