From affb433e3dbaf19a6c842a9fd2ad847106829bad Mon Sep 17 00:00:00 2001
From: Thomas Perl <thp@perli.net>
Date: Wed, 22 Oct 2008 20:10:30 +0200
Subject: [PATCH] First support for in-game weather (rainfall)

Use the "r" key to increase the amount of rainfall during the game.
---
 game.c | 18 ++++++++++++++++++
 game.h |  1 +
 2 files changed, 19 insertions(+)

diff --git a/game.c b/game.c
index 6f861c1..292f67e 100644
--- a/game.c
+++ b/game.c
@@ -61,6 +61,7 @@ GameState *gamestate_new() {
         SOUND_MAX,
         0.0,
         0.0,
+        0,
         0
     };
 
@@ -281,6 +282,9 @@ bool step( GameState* s) {
         } else if (keys[SDLK_F7]) {
             s->court_type--;
         }
+        if (keys['r']) {
+            s->rain += 10;
+        }
         if( s->court_type > GR_CTT_LAST) {
             s->court_type = GR_CTT_FIRST;
         } else if (s->court_type < GR_CTT_FIRST) {
@@ -355,6 +359,7 @@ bool step( GameState* s) {
 }
 
 void render( GameState* s) {
+    int i, x, y;
     if (s->play_sound != SOUND_MAX) {
         play_sample(s->play_sound);
         s->play_sound = SOUND_MAX;
@@ -404,6 +409,19 @@ void render( GameState* s) {
 
     font_draw_string( GR_DKC2_FONT, s->status, (WIDTH-font_get_string_width( GR_DKC2_FONT, s->status))/2, HEIGHT-50, s->time/30, ANIMATION_WAVE);
 
+    for (i=0; i<s->rain; i++) {
+        x = rand()%WIDTH;
+        y = rand()%HEIGHT;
+        draw_line_faded(x, y, x+10, y+30, 0, 0, 255, 100, 200, 255);
+    }
+    if (s->rain) {
+        /**
+         * Cheap-ish update of the whole screen. This can
+         * probably be optimized.
+         **/
+        update_rect(0, 0, WIDTH, HEIGHT);
+    }
+
 #ifdef DEBUG
     line_horiz( s->player1.y, 255, 0, 0);
     line_horiz( s->player2.y, 0, 0, 255);
diff --git a/game.h b/game.h
index 4303e09..2545762 100644
--- a/game.h
+++ b/game.h
@@ -114,6 +114,7 @@ typedef struct {
     float joystick_y;
     float joystick_x;
     unsigned char joystick_a;
+    unsigned int rain;
 } GameState;
 
 #define PI 3.1415
-- 
2.11.4.GIT