From 0b2a29fe3bcfbebd169a9a5696f4e0a5a772098e Mon Sep 17 00:00:00 2001
From: Linus_Probert <linus.probert@netset.se>
Date: Tue, 6 Feb 2018 16:47:45 +0100
Subject: [PATCH] Hilite current tile under mouse

This is intended for spell usage once I get that in.
---
 src/main.c       |  4 ++++
 src/player.c     |  2 +-
 src/player.h     |  1 +
 src/roommatrix.c | 37 +++++++++++++++++++++++++++++++++++--
 src/roommatrix.h |  5 +++++
 5 files changed, 46 insertions(+), 3 deletions(-)

diff --git a/src/main.c b/src/main.c
index d3a86a7..225fbd0 100644
--- a/src/main.c
+++ b/src/main.c
@@ -167,6 +167,7 @@ bool handle_events(void)
 			camera_follow_position(&gCamera, &gPlayer->sprite->pos);
 			map_set_current_room(gMap, &gPlayer->sprite->pos);
 		}
+		roommatrix_handle_event(gRoomMatrix, &event);
 		pointer_handle_event(gPointer, &event);
 	}
 
@@ -230,6 +231,9 @@ run_game(void)
 	map_render(gMap, &gCamera);
 	particle_engine_render(&gCamera);
 	player_render(gPlayer, &gCamera);
+
+	if (gPlayer->class == MAGE || gPlayer->class == PALADIN)
+		roommatrix_render_mouse_square(gRoomMatrix, &gCamera);
 	roommatrix_render_lightmap(gRoomMatrix, &gCamera);
 
 	SDL_RenderSetViewport(gRenderer, &rightGuiViewport);
diff --git a/src/player.c b/src/player.c
index c801adb..9019732 100644
--- a/src/player.c
+++ b/src/player.c
@@ -257,6 +257,7 @@ player_create(class_t class, SDL_Renderer *renderer)
 	player->misses		= 0;
 	player->gold		= 0;
 	player->potion_sips	= 0;
+	player->class		= class;
 
 	char asset[100];
 	switch (class) {
@@ -288,7 +289,6 @@ player_create(class_t class, SDL_Renderer *renderer)
 	player->sprite->textures[0]->dim = (Dimension) {
 		TILE_DIMENSION, TILE_DIMENSION };
 	player->handle_event = &handle_player_input;
-
 	player_load_texts(player, renderer);
 
 	return player;
diff --git a/src/player.h b/src/player.h
index b024022..5e29954 100644
--- a/src/player.h
+++ b/src/player.h
@@ -30,6 +30,7 @@ typedef struct Player_t {
 	unsigned int misses;
 	double gold;
 	unsigned int potion_sips;
+	class_t class;
 	void (*handle_event)(struct Player_t*, RoomMatrix*, SDL_Event*);
 } Player;
 
diff --git a/src/roommatrix.c b/src/roommatrix.c
index 39622af..78a9d11 100644
--- a/src/roommatrix.c
+++ b/src/roommatrix.c
@@ -19,6 +19,20 @@ RoomMatrix* roommatrix_create()
 	return m;
 }
 
+void
+roommatrix_handle_event(RoomMatrix *matrix, SDL_Event *event)
+{
+	if (event->type != SDL_MOUSEMOTION)
+		return;
+
+	if (event->motion.x < GAME_VIEW_WIDTH
+	    && event->motion.y < GAME_VIEW_HEIGHT)
+	{
+		matrix->mousePos.x = event->motion.x;
+		matrix->mousePos.y = event->motion.y;
+	}
+}
+
 void roommatrix_populate_from_map(RoomMatrix *rm, Map *m)
 {
 	int i, j;
@@ -160,6 +174,21 @@ roommatrix_build_lightmap(RoomMatrix *matrix)
 	}
 }
 
+void
+roommatrix_render_mouse_square(RoomMatrix *matrix, Camera *cam)
+{
+	Position mmc = position_to_matrix_coords(&matrix->mousePos);
+	SDL_Rect box = (SDL_Rect) {
+			mmc.x*TILE_DIMENSION,
+			mmc.y*TILE_DIMENSION,
+			TILE_DIMENSION,
+			TILE_DIMENSION
+	};
+
+	SDL_SetRenderDrawColor(cam->renderer, 255, 255, 0, 90);
+	SDL_RenderFillRect(cam->renderer, &box);
+}
+
 void
 roommatrix_render_lightmap(RoomMatrix *matrix, Camera *cam)
 {
@@ -170,14 +199,18 @@ roommatrix_render_lightmap(RoomMatrix *matrix, Camera *cam)
 			light = 245 - matrix->spaces[i][j].light;
 			if (light < 0)
 				light = 0;
-			SDL_SetRenderDrawColor(cam->renderer,
-					       0, 0, 0, light);
+			else if (light > 245)
+				light = 245;
+
 			SDL_Rect box = (SDL_Rect) {
 				i*TILE_DIMENSION,
 				j*TILE_DIMENSION,
 				TILE_DIMENSION,
 				TILE_DIMENSION
 			};
+
+			SDL_SetRenderDrawColor(cam->renderer,
+					       0, 0, 0, light);
 			SDL_RenderFillRect(cam->renderer, &box);
 		}
 	}
diff --git a/src/roommatrix.h b/src/roommatrix.h
index b2b61b2..14e4df7 100644
--- a/src/roommatrix.h
+++ b/src/roommatrix.h
@@ -26,10 +26,13 @@ typedef struct {
 	RoomSpace spaces[MAP_ROOM_WIDTH][MAP_ROOM_HEIGHT];
 	Position roomPos;
 	Position playerRoomPos;
+	Position mousePos;
 } RoomMatrix;
 
 RoomMatrix* roommatrix_create(void);
 
+void roommatrix_handle_event(RoomMatrix*, SDL_Event*);
+
 void roommatrix_populate_from_map(RoomMatrix*, Map*);
 
 void roommatrix_update_with_player(RoomMatrix*, Player*);
@@ -38,6 +41,8 @@ void roommatrix_add_lightsource(RoomMatrix*, Position*);
 
 void roommatrix_build_lightmap(RoomMatrix*);
 
+void roommatrix_render_mouse_square(RoomMatrix*, Camera*);
+
 void roommatrix_render_lightmap(RoomMatrix*, Camera*);
 
 void roommatrix_reset(RoomMatrix*);